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EL / Esthetic Line

Placing a C-Tech Esthetic Line Implant Utilising a Navigated Surgery Approach – A Case Report

Written by feRKzzCTo0 on . Posted in EL / Esthetic Line, EL – Esthetic Line, Fabrizia Luongo, GS – Guided Surgery, Вођена Хирургија, Клинички случајеви

Dr Fabrizia Luongo, DDS, MS, Periodontist, Rome, Italy

Introduction
There has been a considerable evolution in implant dentistry over recent years that has seen the design of dental implants adopt sophisticated thread profiles which leads to a better primary stability. Simultaneously these new geometries aid cortical bone maintenance through to platform-switching capabilities again designed to minimise bone loss. When combined with improved implant-prosthetic connections such as a Morse-locking conical connection it contributes to a good long-term prognosis and an aesthetic outcome.
Concurrent with this evolution in implant design have been substantial advances in digital technologies across the field of dentistry. These digital advances include Cone-beam CT scanning combined with appropriate 3D planning software, navigated surgery technology, 3D intra-oral scanning to create a ‘virtual impression’ and 3D printing technologies. These digital technologies can minimise the number of appointments found in a conventional treatment protocol as well as enabling greater accuracy and will be considered in this case study.

Italian passion for German precision

Written by feRKzzCTo0 on . Posted in El – Esthetic Line, Nd – Narrow Diameter, Scientific Publications, Sd-Mb – Monoblock - Small Diameter, Вођена Хирургија, Конвенционална Имплантологија, Мини Импланти, Регенерација Костију

Magazine PIP • Practical implantology and implant prosthetics • August 2018

Italian passion for German precision

When visiting the impressive manufacturing facility, with 25 CNC machines alone, you will also come across the “Mercedes” of manufacturing technology such as the Swiss Tornos, a five-axis machine, which at C-Tech is purely tasked with the manufacture of mini-implants. Currently they are the largest manufacturer in Europe for this specific type of implant. Mini-implants are popular as a minimally-invasive option for creating an immediate restoration, which is currently a highly sought-after alternative for fast and good functional care of older patients. An impressive neighbour is the Willemin Macodell (the Rolls-Royce of CNC machines), which can be fitted with 48 different CNC cutters. It can change tools in 1.4 seconds and can be used in any conceivable axis, including for the manufacture of angled mini-abutments. C-Tech was one of the first companies to move over to cooling all computer-controlled machine tools using water-miscible bio-lubricants. The plant-based oil is odour-free, improves machining and even has a wider range of applications than mineral oil products. “And even though of course we run extensive cleaning processes for the finished parts, it’s still one risk factor less”, comments Lütfü Agic with respect to the recently published independent surface study by the University of Cologne, where the C-Tech implant surfaces were tested as an example, in testing applied to very few dental implant surfaces on the dental market.

International Journal of Implant Dentistry – August 2017 – Investigation of peri-implant tissue conditions and peri-implant tissue stability in implants placed with simultaneous augmentation procedure: a 3-year retrospective follow-up analysis of a newly developed bone level implant system

Written by feRKzzCTo0 on . Posted in Century-Gtr, El – Esthetic Line, Henriette Lerner, Robert Sader, Scientific Publications, Shahram Ghanaati, Конвенционална Имплантологија, Регенерација Костију

International Journal of Implant Dentistry • August 2017

Investigation of peri-implant tissue conditions and peri-implant tissue stability in implants placed with simultaneous augmentation procedure: a 3-year retrospective follow-up analysis of a newly developed bone level implant system

Jonas Lorenz University Hospital Frankfurt · Department of oral, maxillofacial and plastic surgery, Henriette Lerner HL DENTCLINIC, Robert A. Sader Goethe-Universität Frankfurt am Main · Center of Stomatology
and Shahram Ghanaati Goethe University of Frankfurt/Main; Universitätsmedizin der Johannes Gutenberg-Universität Mainz · Department for Oral, Craniomaxillofacial and Facial Plastic Surgery; Institute of Pathology

The aim of the present retrospective analysis was to assess peri-implant tissue conditions and document peri-implant tissue stability in C-Tech implants when placed simultaneously with a GBR (Guided Bone Regeneration) augmentation procedure.

A total of 47 implants, which were placed simultaneously with a GBR (Guided Bone Regeneration) procedure with a synthetic bone substitute material in 20 patients, were investigated clinically and radiologically at least 3 years after loading.

The follow-up investigation revealed a survival rate of 100% and only low median rates for probing depths (2.7 mm) and BOP (bleeding on probing) (30%). The mean PES (Pink Esthetic Score) was 10.1 from the maximum value of 14.
No osseous peri-implant defects were obvious, and the mean bone loss was 0.55 mm.

In conclusion, implants placed in combination with a GBR (Guided Bone Regeneration) procedure can achieve long-term stable functionally and esthetically satisfying results for replacing missing teeth in cases of atrophy of the alveolar crest.

References

1. Gurgel BC, Montenegro SC, Dantas PM, Pascoal AL, Lima KC, Calderon PD. Frequency of peri-implant diseases and associated factors. Clin Oral Implants Res. 2016; doi: 10.1111/clr.12944

2. Qian J, Wennerberg A, Albrektsson T. Reasons for marginal bone loss around oral implants. Clin Implant Dent Relat Res. 2012;14(6):792–807.

3. Berglundh T, Lindhe J, Ericsson I, Marinello C, Liljenberg B, Thomsen P. The soft tissue barrier at implants and teeth. Clin Oral Implants Res. 1991;2:81–90.

4. Berglundh T, Lindhe J, Jonsson K, Ericsson I. The topography of the vascular systems in the per iodontal and peri-implant tissues in the dog. J Clin Periodontol. 1999;21:189–93.

5. Moon I, Berglundh T, Abrahamsson I, Linder E, Lindhe J. The barrier between the keratinized mucosa and the dental implant. An experimental study in the dog. J Clin Periodontol. 1999;26:658–63.

6. Lindhe J, Berglundh T. The interface between the mucosa and the implant. Periodontol. 1998;17:47–54.

7. Masaki C, Nakamoto T, Mukaibo T, Kondo Y, Hosokawa R. Strategies for alveolar ridge reconstruction and preservation for implant therapy. J Prosthodont Res. 2015;59(4):220–8.

8. Damien CJ, Parsons JR. Bone graft and bone graft substitutes: areview of current technology and applications. J Appl Biomater.1991;2:187–208.

9. Cordaro L, Torsello F, Miuccio MT, di Torresanto VM, Eliopoulos D. Mandibular bone harvesting for alveolar reconstruction and implant placement: subjective and objective cross-sectional evaluation of donor and recipient site up to 4 y
ears. Clinical Oral Impl Res. 2011;22:1320–6.

10. Canullo L, Penarrocha-Oltra D, Soldini C, Mazzocco F, Penarrocha M, Covani U. Microbiological assessment of the implant-abutment interface in different connections: cross-sectional study after 5 years of functional loading. Clin Oral Implants Res. 2015;26(4):426–34.

11. Misch C. Implant design considerations for the posterior regions of the mouth. Implant Dent. 1999;8(4).

12. SteigengaJ,al-ShammariK,NocitiF,MischC,WangH.Dentalimplant design and its relationship to long-term implant success. Implant Dent. 2001;12(4):306–17.

13. Canullo L, Pace F, Coelho P, Sciubba E, Vozza I. The influence of platform switching on the biomechanical aspects of the implant-abutment system. A three dimensional finite element study. Med Oral Patol Oral Cir Bucal. 2011;16(6):852–6.

14. Lerner H, Lorenz J, Sader R, Ghanaati S. Two-year retrospective study of periimplant health and periimplant bone stability after immediate implant placement of a newly developed bone level implant system—a first report.
EDI Journal (European Association of Dental Implantologists, Teamwork Media); 2017; ahead of print.

15. Ghanaati S, Lorenz J, Obreja K, Choukroun J, Landes C, Sader R. Nanocrystalline hydroxyapatite-base d material already contributes to implant stability after 3 months: a clinical and radiologic 3-year follow-up investigation. In: Journal of Or al Implantology. 2014;40(1):103–9.

16. Lorenz J, Kubesch A, Korzinskas T, Barbeck M, Landes C, Sader R, et al. TRAP-positive multinucleated giant cells are foreign body giant cells rather than osteoclasts: results from a split-mouth study in humans. J Oral Implantol. 2015;41(6):e257–66.

17. Barbeck M, Udeabor S, Lorenz J, Schlee M, Grosse Holthaus M, Raetscho N, et al. High-temperature sintering of xenogeneic bone substitutes leads to increased multinucleated giant cell formation: in vivo and preliminary clinical results. J Oral Implantol. 2015;41(5):e212–22.

18. Barbeck M, Udeabor S, Lorenz J, Kubesch A, Choukroun J, Sader R, et al. Induction of multinucleated giant cells in response to small sized bovine bone substitute (Bio-Oss TM) results in an enhanced early implantation bed vascularization. Ann Maxillofac Surg. 2014;4(2):150–7.

19. Lorenz J, Barbeck M, Sader R, Russe P, Choukroun J, Kirkpatrick CJ, et al. Foreign body giant cell related encapsulation of a synthetic material three years after augmentation. J Oral Implantol. 2016;42(3):273–7.

EDI Journal – December 2016 – First report of a two-year retrospective study with a newly developed bone-level implant system Peri-implant health and peri-implant bone stability after immediate implant placement

Written by feRKzzCTo0 on . Posted in El – Esthetic Line, Henriette Lerner, Robert Sader, Scientific Publications, Shahram Ghanaati, Конвенционална Имплантологија

International Journal of Implant Dentistry • December 2016

First report of a two-year retrospective study with a newly developed bone-level implant system Peri-implant health and peri-implant bone stability after immediate implant placement

DR-Medic Stom. Henriette Lerner HL DENTCLINIC, Dr. Jonas Lorenz University Hospital Frankfurt · Department of oral, maxillofacial and plastic surgery, Professor Robert A. Sader Goethe-Universität Frankfurt am Main · Center of Stomatology and Dr. Shahram Ghanaati Goethe University of Frankfurt/Main; Universitätsmedizin der Johannes Gutenberg-Universität Mainz · Department for Oral, Craniomaxillofacial and Facial Plastic Surgery; Institute of Pathology

Dental implants have become a reliable and predictable treatment modality to replace missing teeth and retain dentures in edentulous patients. They can restore the oral health, form, function, mastication, articulation and aesthetics of the stomatognathic system with multi-year success rates of more than 90 per cent for implants in fully edentulous [1,2] or partially edentulous patients [3-6]. Variations in implant success have been found dependent upon surgical technique, loading protocol, implant localisation and bone quality –for example, lower success rates have been reported for maxillary implants than for mandibular implants [7,8]

In the past few decades, research on dental implants has led to a broad modification of the surgical and prosthetic protocols.
For the surface of dental implants there is a clear consensus regarding the superiority of roughened/micro-textured surfaces.

Other ways to increase the implant surface include the thread design, implant length and implant diameter. The implant design should incorporate features that best transform tensile and shear forces during mastication and minimize undesirable force components.
Also essential for the long-term stability of peri-implant bone tissue and an aesthetically and functionally sufficient dental implant is the stability of the implant/abutment connection, to prevent implant fractures and screw loosening and to keep the peri-implant bone level stable.
A space or micro-gap between the implant and abutment is unavoidable with a two-piece design; however, a smaller micro-gap can also sometimes be found in designs with platform switching and Morse-tapered conical connectors, used to transfer the micro-gap facing the implant axis and reduce micro-movement. This can reduce the propulsion of sulcus fluid and, consequently, crestal bone loss, even with implants inserted below the alveolar crest (subcrestally).

The aim of the present retrospective study was to describe the clinical and radiological results of a new implant system with a grit-blasted and acid-etched surface topography and a Morse-locking conical implant/abutment connection. Implants were inserted in fresh and intact extraction sockets of maxillary and mandibular non-salvageable teeth and were followed up clinically and radiologically after a mean loading time of two years. Special emphasis was placed on the maintenance of peri-implant health and the stability of peri-implant bone level.

 

References

1. Albrektsson T, Dahl E, Enbom L, Engevall S, Engquist B, et al. (1988) Osseointegrated oral implants. A Swedish multicenter study of 8139 consecutively inserted nobelpharma implants. J Periodontol 59(5):287-296.

2. Spiekermann H, Jansen VK, Richter EJ (1995) A 10-year follow-up study of IMZ and TPS implants in the edentulous mandible using bar-retained overdentures. Int J Oral
Maxillofac Implants 10(2):231-243.

3. Nevins M, Langer B (1993) The successful application of osseointegrated implants to the posterior jaw: a long-term retrospective study. Int J Oral Maxillofac Implants 8(4):428-432.

4. Henry PJ, Laney WR, Jemt T, Harris D, Krogh PH, et al. (1996) Osseointegrated implants for single-tooth replacement: a prospective 5-year multicenter study. Int J Oral Maxillofac Implants 11(4):450-455.

5. Schmitt A, Zarb GA (1993) The longitudinal clinical effectiveness of osseointegrated dental implants for single-tooth replacement. Int J Prosthodont 6(2):197-202.

6. Fugazzotto PA, Gulbransen HJ, Wheeler SL, Lindsay JA (1993) The use of IMZ osseointegrated implants in partially and completely edentulous patients: success and failure rates of 2,023 implant cylinders up to 60+ months in function. Int J Oral Maxillofac Implants 8(6):617-621.

7. Misch CE (1990) Density of bone: effect on treatment plans, surgical approach, healing, and progressive boen loading. Int J Oral Implantol 6(2):23-31.

8. Albrektsson T, Lekholm U (1989) Osseointegration: current state of the art. Dent Clin North Am 33 (4):537-554.

9. Adell R, Lekholm U, Brånemark PI (1985) Surgical procedures. In: Brånemark PI, Zarb G, Albrektsson T (Eds.), Tissue Integrated Prostheses: Surgical Procedures, Quintessence Publishing Co, Chicago, USA, pp. 223-225.

10. Kohal RJ, LaRosa M, Patrick D, Hürzeler MB, Caffesse RG (1999) Clinical and histologic evaluation of submerged and nonsubmerged hydroxyapatite-coated im-plants: a preliminary study in dogs. Int J Oral Maxillofac Implants 14(6):824-834.

11. Evian CI, Kessler L, Axler J (1997) One-stage surgery with a nonsubmerged implant system. Compend Contin Educ Dent 18(11):1091-1094,1096-1098.

12. Ericsson I, Nilner K, Klinge B, Glantz PO (1996) Radio-graphical and histological characteristics of submerged and nonsubmerged titanium implants. An experimental study in the Labrador dog. Clin Oral Implants Res 7(1):20-26.

13. Chrcanovic BR, Albrektsson T, Wennerberg A (2015) Dental implants inserted in fresh extraction sockets versus healed sites: a systematic review and meta-analysis. J Dent 43(1):16-41.

14. Weiss CM, Weiss A, Rosenlicht J (2001) Root form implants. Treatment of total mandibular edentulism diagnosed for an overdenture. In: Weiss CM, Weiss A, (Eds.), Principles and Practice of Implant Dentistry, Mosby, St Louis, USA, pp. 147-168.

15. Fickl S, Zuhr O, Wachtel H, Stappert CF, Stein JM, et al. (2008) Dimensional changes of the alveolar ridge contour after different socket preservation techniques. J Clin Peri-odontol 35(10):906-913.

16. Vignoletti F, Matesanz P, Rodrigo D, Figuero E, Martin C, et al. (2012) Surgical protocols for ridge preservation after tooth extraction. A systematic review. Clin Oral Implants Res 23(5):22-38.

17. Lekovic V, Camargo PM, Klokkevold PR, Weinlaender M, Kenney EB, et al. (1998) Preservation of alveolar bone in extraction sockets using bioabsorbable membranes. J Periodontol 69(9):1044-1049.

18. Becker W, Becker B, Polizzi G, Bergstrom C (1994) Autogenous bone grafting of defects adjacent to implants placed into immediate extraction sockets in patients: a prospective study. Int J Oral Maxillofac Implants 9(4):389-396.

19. Artzi Z, Tal H, Dayan D (2001) Porous bovine bone mineral in healing of human extraction sockets: 2. Histo-chemical observations at 9 months. J Periodontol 72(2):152-159.

20. Iasella JM, Greenwell H, Miller RL, Hill M, Drisko C (2003) Ridge preservation with freeze-dried bone allograft and a collagen membrane compared to extraction alone for implant site development: a clinical and histologic study in humans. J Periodontol 74(7):990-999.

21. Araújo MG, Lindhe J (2005) Dimensional ridge alterations following tooth extraction. An experimental study in the dog. J Clin Periodontol 32(2):212-218.

22. Evans CD, Chen ST (2008) Esthetic outcomes of immediate implant placements. Clin Oral Implants Res 19(1):73-80.

23. Chen ST, Darby IB, Reynolds EC, Clement JG (2009) immediate implant placement postextraction without flap elevation. J Periodontol 80(1):163-172.

24. Lang NP, Pun L, Lau KY, Li KY, Wong MC (2012) A systematic review on survival and success rates of implants placed immediately into fresh extraction sockets after at least 1 year. Clin Oral Implants Res 23(5):39-66.

25. Pagni G, Pellegrini G, Giannobile WV, Rasperini G (2012) Postextraction alveolar ridge preservation: biological basis and treatments. Int J Dent 2012:151030.

26. Tavarez RR, Calixto AM, Maia Filho EM, Bandeca MC, Firoozmand LM, et al. (2014) Atraumatic extraction, implant placement and immediate provisionalization. J Contemp Dent Pract 15(4):513-517.

27. Misch CE (1999) Implant design considerations for the posterior regions of the mouth. Implant Dent 8(4):376-386.

28. Binon PP (2000) Implants and components: entering the new millennium. Int J Oral Maxillofac Implants 15(1):76-94.

29. Trisi P, Rao W, Rebaudi A (1999) A histometric comparison of smooth and rough titanium implants in human low-density jawbone. Int J Oral Maxillofac Implants 14(5):689-698.

30. Steigenga JT, Shammari KF, Nociti FH, Misch CE, Wang HL (2003) Dental implant design and its relationship to long-term implant success. Implant Dent 12(4):306-317.

31. Niznick G (2000) Achieving Osseointegration in soft bone: The search for improved results. Oral Health 90:27-32.

32. O’Sullivan D, Sennerby L, Meredith N (2000) Measurements comparing the initial stability of five designs of dental implants: a human cadaver study. Clin Implant Dent Relat Res 2(2):85-92.

33. Sykaras N, Iacopino AM, Marker VA, Triplett RG, Woody RD (2000) Implant materials, designs, and surface topographies: their effect on osseointegration. A literature review. Int J Oral Maxillofac Implants 15(5):675-690.

34. Canullo L, Penarrocha OD, Soldini C, Mazzocco F, Penarrocha M (2015) Microbiological assessment of the implant-abutment interface in different connections: cross-sectional study after 5 years of functional loading. Clin Oral Implants Res 26(4):426-434.

35. Pozzi A, Tallarico M, Moy PK (2014) Three-year post-loading results of a randomised, con-trolled, split-mouth trial comparing implants with different prosthetic interfaces and design in partially posterior edentulous mandibles. Eur J Oral Implantol 7(1):47-61.

36. Ghanaati S, Lorenz J, Obreja K, Choukroun J, Landes C, et al. (2014) Nanocrystalline hydroxyl apatite-based material already contributes to implant stability after 3 months: a clinical and radiologic 3-year followup investigation. J Oral Implantol 40(1):103-109.

37. Ghanaati S, Barbeck M, Lorenz J, Stuebinger S, Seitz O (2013) Synthetic bone substitute material comparable with xeno-geneic material for bone tissue regeneration in oral cancer patients: First and preliminary histological, histomorpho-metrical and clinical results. Ann Maxillofac Surg 3(2):126-138.

38. Sailer I, Zembic A, Jung RE, Siegenthaler D, Holderegger C (2009) Randomized controlled clinical trial of customized zirconia and titanium implant abutments for canine and posterior single-tooth implant reconstructions: preliminary results at 1 year of function. Clinical Oral Implants Research 20(3):219-225.

39. Brägger U, Bürgin WB, Hämmerle CH, Lang NP (1997) Associations between clinical parameters assessed around implants and teeth. Clinical Oral Implants Research 8(5):412-421.

40. Berglundh T, Lindhe J, Ericsson I, Marinello CP, Liljenberg B, et al. (1991) The soft tissue barrier at implants and teeth. Clinical Oral Implants Research 2(2):81-90.

41. Berglundh T, Lindhe J, Jonsson K, Ericsson I (1994) The topography of the vascular systems in the periodontal and peri-implant tissues in the dog. Journal of Clinical Periodontology 21(3):189-193.

42. Moon IS, Berglundh T, Abrahamsson I, Linder E, Lindhe J (1999) The barrier between the keratinized mucosa and the dental implant. An experimental study in the dog. Journal of Clinical Periodontology 26(10):658-663.

43. Lindhe J, Berglundh T (1998) The interface between the mucosa and the implant. Periodontology 2000 17: 47-54.

44. Rieder D, Eggert J, Krafft T, Weber HP, Wichmann MG (2014) Impact of placement and restoration timing on single-implant esthetic outcome-a randomized clinical trial. Clin Oral Implants Res 27(2):e80-e86.

45. Romanos GE, Aydin E, Locher K, Nentwig GH (2014): Immediate vs. delayed loading in the posterior mandible: a split-mouth study with up to 15 years of follow-up. Clin Oral Implants Res 27(2):e74-e79.

46. Wagenberg B, Froum SJ (2014) Long-Term Bone Stability around 312 Rough-Surfaced Immediately Placed Implants with 2-12-Year Follow-Up. Clin Implant Dent Relat Res 17(4):658-666.

47. Javed F, Ahmed HB, Crespi R, Romanos GE (2013) Role of primary stability for successful osseointegration of dental implants: Factors of influence and evaluation. Interv Med Appl Sci 5(4):162-167.

48. Calvo GJL, Gomez MG, Aguilar SA, Mate SVJE, Abboud M (2014) Bone remodeling at implants with different configurations and placed immediately at different depth into extraction sockets. Experimental study in dogs. Clin Oral Implants Res 26(5):507-515.

49. Javed F, Almas K, Crespi R, Romanos GE (2011) Implant surface morphology and primary stability: is there a connection? Implant Dent 20(1):40-46.

50. Berberi A, Tehini G, Rifai K, Bou NEF, El ZN (2014) In vitro evaluation of leakage at implant-abutment connection of three implant systems having the same prosthetic interface using rhodamine B. Int J Dent 2014:351263.

Dentista Moderno, Italy – October 2016 – Follow-up after two years to check the health of peri-implant tissues and bone stability of a number of cases with immediate post-extraction insertion of a recently developed bone implant system

Written by feRKzzCTo0 on . Posted in El – Esthetic Line, Henriette Lerner, Robert Sader, Scientific Publications, Shahram Ghanaati, Конвенционална Имплантологија

Dentista Moderno, Italy • October 2016

Follow-up after two years to check the health of peri-implant tissues and bone stability of a number of cases with immediate post-extraction insertion of a recently developed bone implant system.First report

Jonas Lorenz University Hospital Frankfurt · Department of oral, maxillofacial and plastic surgery, Henriette Lerner HL DENTCLINIC, Robert A. Sader Goethe-Universität Frankfurt am Main · Center of Stomatology
and Shahram Ghanaati Goethe University of Frankfurt/Main; Universitätsmedizin der Johannes Gutenberg-Universität Mainz · Department for Oral, Craniomaxillofacial and Facial Plastic Surgery; Institute of Pathology

Introduction
Dental implants have become a reliable and predictable treatment method in dentistry to replace the tooth and prosthesis in case of edentulism. Therefore the oral health, shape, operation, chewing, articulation and aesthetics of the stomatognathic apparatus can be restored with a multi-year success rate of more than 90% in the case of implants set in completely or partially edentulous patients.
For the success of an implant in the long term it is necessary to meet some specific technical and constructive requirements. An additional factor that is essential for the long-term stability of peri-implant bone tissue and to ensure an aesthetically and functionally adequate dental implant is the stability of the implant-abutment connection, as it is inevitable that a space or micro-gap will be created between the implant and the abutment. Nevertheless, there will be a smaller micro-gap if the design is equipped with a cone Morse connection and platform switching, which transfer the micro-gap to the front of the implant axis and reduce micro-motion. Therefore, the pumping of sulcular fluid and, consequently, crestal bone loss can be reduced even when the implant is inserted under the crest (subcrestal).

The purpose of the series of cases presented is to describe, for the first time, the clinical and radiological results after two years of immediate setting of 50 implants with a new sandblasted and acid-etched surface implant system and cone Morse connection.

During the observation period which averaged two years, none of the implants presented failures or acute or peri-implant infections. All implants had a sufficient amount of keratinised peri-implant soft tissue, reduced probing depths (2.25 mm on average) and good BOP (34%). After about two years of use, peri-implant bone level was stable and with an average bone loss of 0.83 mm.

With an average observation period of two years, the implant considered with immediate setting on the bone, rough surface and conical connection was shown to preserve the health status of the soft and hard peri-implant tissues. The parameters analysed are the same or better than comparable studies in the international literature.

 

References

1. Albrektsson, I; Dahl, E.; Enbom, L; Engevall, S.; Engquist, B.; Eriksson, A. R. et al. (1988): Osseointegrated oral implants. A Swedish multicenter study of 8139 consecutively inserted Nobelpharma implants. In: J. Periodontal 59 (5):287-296.

2. Spiekermann, H.; Jansen, V. K.; Richter, E. J. (1995): A 10-year follow-up study of IMZ and TPS implants in the edentulous mandible using bar-retained overdentures. In: Int J Oral Maxillofac Implants 10 (2):231 -243.

3. Nevins, M.; Longer, B. (1993): The successful application of osseointegrated implants to the posterior jaw: a long-term retrospective study. In: Int J Oral Maxillofac Implants 8 (4):428-432.

4. Henry, P. J.; Laney, W. R.; Jemt, T.; Harris, D.; Krogh, P. H.; Polizzi, G. et al. (1996): Osseointegrated implants for single-tooth replacement: a prospective 5-year multicenter study. In: Int J Oral Maxillofac Implants 11 (4):450-455.

5. Schmitt, A.; Zarb, G. A. (1993): The longitudinal clinical effectiveness of osseointegrated dental implants for single-tooth replacement. In: Int J Prosthodont 6 (2):197-202.

6. Fugazzotto, P. A.; Gulbransen, H. J.; Wheeler S. L.; Lindsay, J. A. (1993): The use of IMZ osseointegrated implants in partially and completely edentulous patients: success and failure rates of 2,023 implant cylinders up to 60+ months in function. In: Int J Oral Maxillofac Implants 8 (6):617-621.

7. Misch, C. E. (1990): Density of bone: effect on treatment plans, surgical approach, healing, and progressive boen loading. In: Int J Oral Impiantai 6 (2):23-31.

8. Albrektsson, T.; Lekholm, U. (1989): Osseointegration: current state of the art. In: Dent. Clin. North Am 33 (4):537-554.

9. Misch, C. E. (1999): Implant design considerations for the posterior regions of the mouth. In: Implant Dent 8 (4):376-386.

10. Binon, P. P. (2000): Implants and components: entering the new millennium. In: Int J Oral Maxillofac Implants 15 (1):76-94.

11. Trisi, R; Rao, W; Rebaudi, A. (1999): A histometric comparison of smooth and rough titanium implants in human low-density jawbone. In: Int J Oral Maxillofac Implants 14 (5):689-698.

12. Steigenga, Jennifer T.; al-Shammari, Khalaf R; Nociti, Francisco H.; Misch, Carl E.; Wang, Horn-Lay (2003): Dental implant design and its relationship to long-term implant success. In: Implant Dent 12 (4):306-317.

13. Niznick, G. (2000): Achieving Osseointegration in soft bone: The search for improved results. In: Oral Health, 2000;90:27-32.

14. O’Sullivan, D.; Sennerby, L; Meredith, N. (2000): Measurements comparing the initial stability of five designs of dental implants: a human cadaver study. In: Clin Implant Dent Relat Res 2 (2):85-92.

15. Sykaras, N.; Iacopino, A. M.; Marker, V. A.; Triplett, R. G.; Woody, R. D. (2000): Implant materials, designs, and surface topographies: their effect on osseointegration. A literature review. In: Int J Oral Maxillofac Implants 15 (5):675-690.

16. Canullo, Luigi; Penarrocha-Oltra, David; Soldini, Claudio; Mazzocco, Fabio; Penarrocha, Maria; Covani, Ugo (2015): Microbiological assessment of the implant-abutment interface in different connections: cross-sectional study after 5 years of functional loading. In: Clin Oral Implants Res 26 (4):426-434

17. Pozzi, Alessandro; Tallarico, Marco; Moy. Peter K. (2014): Three-year post-loading results of a randomised, controlled, split-mouth trial comparing implants with different prosthetic interfaces and design in partially posterior edentulous mandibles. In: Eur J Oral Impiantai 7 (1):47-61.

18. Ghanaati, Shahram; Lorenz, Jonas; Obreja, Karina; Choukroun, Joseph; Landes, Constantin; Sader, Robert A. (2014): Nanocrystalline hydroxyapatite-based material already contributes to implant stability after 3 months: a clinical and radiologic 3-year follow-up investigation. In: J Oral Impiantai 40 (1):103-109.

19. Ghanaati, Shahram; Barbeck, Mike; Lorenz, Jonas; Stuebinger, Stefan; Seitz, Oliver; Landes, Constantin et al. (2013): Synthetic bone substitute material comparable with xenogeneic material for bone tissue regeneration in oral cancer patients: First and preliminary histological, histomorphometrical and clinical results. In: Ann Maxillofac Sura 3 (2):126-138.

20. Sailer, I; Zembic, A; Jung, R; Siegenthaler, D; Holderegger, C; Hàmmerle, C. (2009): Randomized controlled clinical trial or customized zirconio and titanium implant abutments for canine and posterior single-tooth implant reconstructions: preliminary results at 1 year of function. In: Clinical Oral Implants Research; 20:219-225.

21. Bràgger, U; Burgin, W; Hàmmerle, C; Lang N. (1997): Associations between clinical parameters assessed around implants and teeth. In: Clinical Oral Implants Research; 8:412-421.

22. Tavarez, Rudys Rodolfo Jesus de; Calixto, Amanda Martins; Maia Filho, Etevaldo Matos; Bandeca, Matheus Coelho; Firoozmand, Leily Macedo; Gomes, Mario Gilson Nina; Malheiros, Adriana Santos (2014): Atraumatic extraction, implant placement and immediate provisionalization. In: J Contemp Dent Pract 15 (4):513-517.

23. Rieder, Dominik; Eggert, Jochen; Krafft, Tim; Weber, Hans-Peter; Wichmann, Manfred G.; Heckmann, Siegfried M. (2014): Impact of placement and restoration timing on single-implant esthetic outcome – a randomized clinical trial. In: Clin Oral Implants Res.

24. Romanos, Georgios E.; Aydin, Erhan; Locher, Kathrin; Nentwig, Georg-Hubertus (2014): Immediate vs. delayed loading in the posterior mandible: a split-mouth study with up to 15 years of follow-up. In: Clin Oral Implants Res.

25. Berberi, Antoine; Tehini, Georges; Rifai, Khaldoun; Bou Nasser Eddine, Farah; El Zein, Nabil; Badran, Bassam; Akl, Haidar (2014): In vitro evaluation of leakage at implant-abutment connection of three implant systems having the same prosthetic interface using rhodamine B. In: Int J Dent 2014:351263.

Xian Feng Dental Magazine – July 2016 – The Past and Present State of the Art in Dental Implants

Written by feRKzzCTo0 on . Posted in El – Esthetic Line, Scientific Publications, Конвенционална Имплантологија

Xian Feng Dental Magazine • July 2016

The Past and Present State of the Art in Dental Implants

Dr Wei

Abstract
Implants have existed for thousands of years, and titanium implants have existed since 1965. There have been many developments in titanium implants in the last 50 years. The culmination of all the developments and the present state of the art in dental implants is demonstrated by the EL (Esthetic Line) dental implant by C-TECH. The EL implant superior performance is due to its main characteristics: Platform switching, Morse lock, tapered, conical connection as well as a bevelled shoulder and agressive main body threading. The Morse lock conical connection brings substantial benefits: connection strength, protection against bacterial infiltration of the gap, hindrance of screw loosening and consequent prosthetic failure. The generous main body threading provides excellent bone to implant contact as well as excellent performance in soft bone.

Erste Daten eines neuartigen Implantatsystems – November 2015 – Frankfurt University FORM EL Study Presentation

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Erste Daten eines neuartigen Implantatsystems • November 2015

Frankfurt University – FORM • EL Study Presentation

Authors: Jonas Lorenz – University Hospital Frankfurt · Department of oral, maxillofacial and plastic surgery, Henriette Lerner – HL DENTCLINIC, Robert A. Sader– Goethe-Universität Frankfurt am Main · Center of Stomatology and Shahram Ghanaati – Goethe University of Frankfurt/Main; Universitätsmedizin der Johannes Gutenberg-Universität Mainz · Department for Oral, Craniomaxillofacial and Facial Plastic Surgery; Institute of Pathology
Study: Frankfurt orofacial regenerative medicine
University: Universitätsklinikum Frankfurt

Long-term stability peri-implant hard and soft tissue after immediate implantation: Initial data of a new Morse locking implant system

Objective
Immediate implantations have become established as a reliable therapy option in recent years. Taking into account some essential conditions, such as the preservation of the bony alveoli, it is possible to achieve comparable survival rates at a low complication rate. The aim of the present study was to investigate for the first time a new Morse locking implant system and its characteristics and performance with immediate implantation.

Material & Methods
In this retrospective study, 21 patients who had received 50 implants (C-Tech Implants Esthetic Line, C-Tech Implants, Bologna, Italy) over the past three years were clinically and radiologically immediately after extracting unsupported teeth in the upper and lower jaws reexamined. After 2 years, the condition of peri-implant hard and soft tissue (width and thickness of the buccal peri-implant gingiva, probing depth (ST), bleeding on probing (BOP)) and the red esthetics PES)) and the stability of the peri-implant bone.

Results
No implant loss, implant loosening or acute infections in the area of the peri-implant tissue occurred during the examination period of 2 years. All implants had a sufficent range of attached peri-implant gingiva, a stable attachment with ST of 2.25 mm and BOP of 34% on average. The peri-implant bone was also stable in the radiological 2-year follow-up with a decrease of 0.83 mm on average.

Serbian Dental Journal – October 2015 – IMMEDIATE LOADING OF DENTAL IMPLANTS USING INTRAORAL WELDING TECHNIQUE – CASE REPORT

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Serbian Dental Journal • October 2015

Immediate loading of dental implants using intraoral welding technique – case report

Dr Kristian Gerga Center of cosmetic dentistry Dr Gerga Banatsko Novo Selo – Digital Dentistry Society Memeber

Patients demands on immediate functional and esthetical dental rehabilitation has resulted in development of immediate implant placement and immediate loading.
Immediate implant loading is loading with temporary or permanent dental restorations which generate mild occlusal contacts with the antagonist, and are set on the implants immediately or up to 48 hours after the surgical procedure.
The aim of this article is to present a clinical case of immediate implants loading using the technique of intraoral welding.

The patient age 63 came to our clinic with pain and swelling in his upper jaw. Clinical examination shows the presence of old metal ceramic crowns with improper marginal sealing, root caries lesions, chronically inflamed gingiva, periodontal pockets, all teeth loose.
Performed analysis of 3D and OPT indicated extraction of remaining teeth.
Patient wanted fixed prosthetic restoration.
Treatment plan was: 6 implants in upper and 6 in lower jaw, intraoral welding and immediate loading.

EL implant system (C-Tech, Italy) we used in this case was able to meet most of our demands thanks to its design and prosthetic solutions.

A new phase of life (quality) Implant-supported fixed denture

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Magazine PIP • Practical implantology and implant prosthetics • May 2020

A new phase of life (quality) Implant-supported fixed denture

Dr. med. dent. Peter Randelzhofer

A restoration with a full denture requires the complete loss of all teeth. Formerly it was known as an important but often not popular restoration. On implants, the removable bridge restoration with palate-free complete denture represents an aesthetically and functionally complete restoration with fixed denture.
The 60-year-old patient came to our dental clinic with discomfort, and she no longer liked the appearance of her teeth (Fig. 1-3). After clinical and radiological diagnostics, it turned out that the remaining teeth represented a potentially “empty jaw condition”, since all teeth had to be extracted due to the periodontal and prosthetic situation (Fig. 4).

Immediate loading of a morse locking conical implant with C-TECH EL; Case report

Written by feRKzzCTo0 on . Posted in EL / Esthetic Line, EL – Esthetic Line, SD-MB – Monoblock - Small Diameter, Клинички случајеви, Конвенционална Имплантологија, Мини Импланти

A 55 year old female patient was referred to our office for a full mouth rehabilitation. Upon clinical examination and a CBCT, we have decided to implant 4 EL C-Tech conical Morse tapered connection implants in the upper jaw for a bar retained over denture and due to financial considerations; was to perform extraction of all remaining lower teeth and immediate post extraction implantation of SD C-Tech mini dental implants. A full muco-periosteal flap was released, teeth were extracted, an alveotomy was performed to achieve an optimal bone platform for the SD mini dental implants and to obtain a bigger vertical dimension for the overdenture!

Innovatives Dental-Implantat-Design – May 2015 – Improved Success Rate, Bone Stability, Esthetic Advantages

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Magazine PIP – Issue:2/2015 • May 2015

Improved Success Rate, Bone Stability, Esthetic Advantages

Author: Dr Henriette Lerner HL DENTCLINIC

Abstract
Implant success nowadays means more than just the achievement of osseointegration. We must also take into account the esthetic results. The present case study shows the treatment of a partially edentulous 65-year-old female patient with high aesthetic issues. All teeth showed a degree of loosening of grade II.
The system used for the treatment used to treat the patient was endowed with a conical Morse connection which is currently the most stable connection.
The stability of the bone using this characteristic has been widely proven.
It is also scientifically proven that resulting cold weld seal reduces the width of the connection micro-gap and consequently reduced the micro-movement that can cause bone loss.

EL Clinical Study – April 2015 – Bone stability and aesthetics using an innovative implant design

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EL Clinical Study • April 2015

Bone stability and aesthetics using an innovative implant design

Treatment of a 65-year-old patient by DR HENRIETTE LERNER (HL DENTCLINIC), BADEN-BADEN, GERMANY

Implant success today consists of more than just “osseointegration accomplished”. We also have to take into account the aesthetic result. The present clinical case with high aesthetic patient expectations illustrates the treatment of a partially edentulous 65-year-old female patient with grade 2 mobility in all teeth.

The Morse-tapered conical connection has been shown to be the most stable connection available at this time.
There is scientific evidence that micro-movements rather than the size of the microgap are the reason for bone loss. In a Morse-tapered conical connection, the internal line angle between the implant and the connector is less than 0.25 degrees. The microgap is smaller (1.1–1.5 μm) than a bacterium (2–6 μm) [2].
Therefore, this connection is the most stable connection currently known and associated with the lowest incidence of screw loosening (0.37 per cent).

Discussion and conclusion
This case study uses an innovative implantological and prosthetic concept that allows the creation and stabilization of the peri-implant bone and gingival complex. Relevant scores were recorded for up to two years, yielding overall implant success rates near 100 per cent (99.7 per cent).

EL Clinical Study – February 2015 – How to combine bone stability and aesthetic benefits through innovative implant design Treatment of a 65-year-old patient

Written by feRKzzCTo0 on . Posted in El – Esthetic Line, Henriette Lerner, Scientific Publications, Конвенционална Имплантологија

EL Clinical Study • February 2015

How to combine bone stability and aesthetic benefits through innovative implant design Treatment of a 65-year-old patient

Henriette Lerner HL DENTCLINIC, Dentist, Baden-Baden, Germany

We present a clinical case with extensive aesthetic requirements, illustrating the treatment of a 65-year-old patient with a partial edentular situation with all the teeth having a mobility grade of 2. All the maxillary teeth were extracted and the implants were immediately set.

Introduction
It has been demonstrated that the cone Morse connection is the most stable type of connection. It has been scientifically proven that bone loss is caused by micro-movements and not by the size of micro-gaps (Hermann et al.). It has been reported that normally the micro-gap in implant connections, which allows accumulation of bacteria, measures 21 to 60 μm, facilitating the development of local inflammations and bone loss. The cone Morse connection is distinguished by an inner wall angle of the connection that is less than 25°. Consequently, this is the safest connection against bacterial accumulation since the size of the micro-gap (1.1-1.5 μm) is smaller than that of a bacterium (2-6 μm).
It is also the most stable connection known to date, as well as having the lowest incidence of screw loosening (0.37%). Furthermore, it has shown high resistance to bending during shear tests at 800 N at 30 degrees.

Discussion and conclusion
For this clinical case an innovative implant and prosthetic concept was implemented, allowing the dentist to create and stabilise the peri-implant bone and gingival structure. This implant design and treatment method seems to allow a better aesthetic result in situations where there are adjacent implants.

EL Clinical Study – September 2014 – Innovative dental implant design shows improved success rate, bone stability and esthetic benefits

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EL Clinical Study • September 2014

Innovative dental implant design shows
improved success rate, bone stability and esthetic benefits

A retrospective study over 3 years including 2-year follow-up Henriette Lerner, DMD Director of HL Dentclinic (private practice focussed on implantology)

The aim of this research is to retrospectively evaluate an innovative implant and prosthetical design by applying the following criteria:
1. implant success rate,
2. bone loss and stability of bone level at the collar of the implant (The Morse tapered conical connection is proven to be the most stable connection at the present time. Therefore, some implant systems have already started to implement it, and they have proved the stability of the bone level using this connection (Bicon, Ankylos),
3. esthetics in terms of pink esthetic score,
4. thickness of the gingiva at 3 mm from the free gingival margin,
5. width of the keratinized gingiva around implants,
6. height of the gingiva around the implants

The study is comprised of the data of 137 patients with 608 implants (C-Tech, Bologna, Italy).

Results: Only two implants were lost (after 6 months), both relating to a single patient. The success rate for those included in the 6-months, 12-months, 18-months and 24-months was 100 percent. Bone loss was not found in any participant of the study. The soft tissue scores indicated a highly esthetic result.

Conclusion: The implant system employed in the present study showed high success rates both for the stability in situ and for the esthetic aspects. Therefore, within the scope of the data collected it may be recommended for use in the population at large.


 

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