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Slide Casi clinici

CENTURY-GTR

Guided Implant Placement with Buccal Exposure and Graft – clinical case

Written by feRKzzCTo0 on . Posted in Alexandre Minis, CENTURY-GTR, GS – Guided Surgery, Клинические случаи, Направленная Хирургия, Регенерация Кости

Dott. Alexandre Minis, France

Case description:
The 55 years old female patient has a lack of prior medical history and is a non-smoker.
There is a fracture under the crown of #12 with infection and vestibular fistula for which a temporary extraction with a valplast for 3 months is performed.
On the control CBCT, low bone volume and evidence of a radiolucent vestibular image initially suggesting fenestration linked to the fistula present before the extraction, or, of the bone being formed.

Surgical dental history:
The surgery is performed using a surgical guide, designed on 3Shape Implant Studio, dentition supported guide 3D printed on a Phrozen Shuffle printer.

International Journal of Implant Dentistry – August 2017 – Исследование состояния периимплантатных тканей и стабильности периимплантатных тканей в имплантатах, вживленных с одновременной аугментацией: анализ 3-годичного ретроспективного наблюдения недавно разработанной системы имплантата на уровне кости.

Written by feRKzzCTo0 on . Posted in Century-Gtr, El – Esthetic Line, Henriette Lerner, Robert Sader, Scientific Publications, Shahram Ghanaati, Регенерация Кости, Традиционная Имплантология

International Journal of Implant Dentistry • August 2017

Исследование состояния периимплантатных тканей и стабильности периимплантатных тканей в имплантатах, вживленных с одновременной аугментацией: анализ 3-годичного ретроспективного наблюдения недавно разработанной системы имплантата на уровне кости.

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

Целью настоящего ретроспективного анализа была оценка состояния периимплантатных тканей и документирование стабильности периимплантатных тканей в имплантатах C-Tech при одновременном вживлении с аугментацией НКР (направленная костная регенерация).

47 имплантатов, которые были вживлены одновременно с аугментацией НКР (направленная костная регенерация) с синтетическим заменителем костной ткани 20 пациентам, исследовались клинически и радиологически минимум 3 года после вживления.

Последующее наблюдение показало приживаемость имплантатов 100 % и только низкие средние значения глубины зондирования (2,7 мм) и кровотечения при зондировании (30 %). Среднее значение по шкале розовой эстетики — 10,1, максимальное значение — 14.
Очевидных костных периимплантатных дефектов обнаружено не было. Среднее значение потери кости составляло 0,55 мм.

В заключение следует отметить, что имплантаты, вживленные в сочетании с процедурой НКР (направленная костная регенерация), могут достичь долгосрочного стабильного функционирования и эстетически удовлетворительных результатов при замене отсутствующих зубов в случае атрофии альвеолярного гребня.

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.

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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.

A one year follow up examining bone level preservation utilising platform switching implants – Ningxia Med J Dec. 2017

Written by feRKzzCTo0 on . Posted in Century-Gtr, Scientific Publications, Регенерация Кости, Традиционная Имплантология

Ningxia Med J, Dec. 2017, Vol 39, No. 12

A one year follow up examining bone level preservation utilising platform switching implants

Jianlin Chen, Yuanjie Cao, Lili Shan, Yan Li, Li Ma, Na Wang, Xiuyu Wu Author’s
Unit: Department of Stomatology, Lingwu People’s Hospital, Ningxia

Abstract

Objective The aim of this research is to observe and evaluate the clinical application of the Esthetic Line [EL] implant system (C-Tech, Bologna, Italy). The EL implant has a surface topography created by sandblasting and acid etching (SLA) and a Morse locking conical connection.

Methods 35 patients with one or more missing teeth were selected and a total of 60 EL implants were placed using either a one stage (non-submerged) placement protocol or a two stage (submerged) protocol. Where applicable, second stage surgery was undertaken 2 ~ 4 months post implantation. Subsequent to this the EL implants were permanently restored over a period of 2 ~ 4 weeks. Clinical examination and imaging analysis were undertaken to evaluate clinical success.

Results All 60 implants osseointegrated successfully, and at the one year follow up there was a 100% retention rate and no adverse reactions in the host. Mesial and distal bone heights were recorded on the day of surgery as well as at the fitting of the permanent restoration and after the implants had been functionally loaded for 12 months. Mesial bone heights were (0. 35 ± 0. 49) mm, (0. 18 ± 0. 44) mm and (0. 25 ± 0. 36) mm respectively. Distal bone heights were (0. 20 ± 0. 42) mm, (0. 08 ± 0. 45) mm and (0. 15 ± 0. 38) mm. In the first year of implant functional load, the total absorption of the mesial bone was (- 0. 11 ± 0. 38) mm and the distance was (- 0. 07 ± 0. 31) mm; There was no significant difference in blood indexes between the preoperative and postoperative three months (P < 0. 05).

Conclusion The design of the EL implant incorporating a combination of a parallel walled section with an apical taper, a beveled shoulder, platform switching, a Morse locking conical connection combined with an SLA treated surface and a sophisticated double threaded morphological design all contribute to successful treatment.

Key words Italy; C – Tech Esthetic Line [EL] implant; implant design; surface treatment; Morse-locking.

In recent years, the evolution of implant techniques combined with developments in implant design and restorative techniques has resulted in greater acceptance of implant treatment by the majority of patients. The Stomatology department of our hospital has adopted the Esthetic Line [EL] implant system (C-Tech, Bologna, Italy) for use in our clinic. A study into the clinical results of 60 EL implants placed in 35 patients was undertaken.  

Conclusions

To sum up, the innovative design of the Esthetic Line implant with its sequential thread design, micro-threads to preserve bone at the collar, sophisticated self-cutting and double lead threading preserves bone structure and increases bone to implant contact. This is combined with a SLA surface treatment, a combination of a bevelled shoulder with a platform switching design and a Morse locking conical connection to make it safe and effective in clinical application. The limitation of this study is that the number of cases included is relatively small, only 30 implants of 35 patients were followed up for 12 months. More accurate clinical effect requires more long-term retrospective and prospective clinical observation and research on larger sample size.

References

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[2] 罗佳,胡秀莲,林野,等. 下后牙区平台转移设计种植体植入深 度对边缘骨水平影响的临床研究[J]. 北京大学学报(医学 版),2012,44 (1):65-69.

[3] 张剑明,郭平川,刘春年,等. 口腔种植修复技术在无牙颌患者 中的应用[J]. 中国口腔种植学杂志,2009,14( 2) : 64 – 65. 1. 陶江丰,陈宁,周芷萱. 口腔种植领域中再生医学的研究进展 [J]. 口腔医学,2012,32(7):443-446.

[4] Kim YK,Kim YJ,Yun PY,et al. Effects of the taper shape,dual- thread and length on the mechanical properties of mini – implants [J]. Angle Orthodontist, 2009, 79(5):908 – 914. 

[5] Hnang HL,Chang CH,Hsu JT,et al. Comparison of implant body designs and threaded designs of dental implants: a 3 – dimensional finite element analysis[J]. In J Oral Maxillofac Implants,2007,22 (4):551-562. 

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[8] 郭智舜,郭平川,周贵祥,等. 平台转换种植体肩台宽度对周围 组织的影响[J]. 实用口腔医学杂志, 2013, 29(3):352 – 357.

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[16] 刘长虹,杨晓喻. 钛种植体表面特征对种植体周细胞功能的影 响[J]. 中国口腔种植学杂志,2008, 13(2):81-84.

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School of Dental Medicine University of Belgrade, Serbia – November 2015 – Клинические результаты после горизонтальной аугментации гребня с тканевым трансплантатом костного блока.

Written by feRKzzCTo0 on . Posted in Century-Gtr, Scientific Publications, Регенерация Кости, Традиционная Имплантология

School of Dental Medicine University of Belgrade, Serbia • November 2015

Клинические результаты после горизонтальной аугментации гребня с тканевым трансплантатом костного блока.

Assoc Prof Dr Snezana Colic (School of Dental Medicine University of Belgrade, Serbia)

Целью этого исследования являлся анализ клинических результатов горизонтальной аугментации с аутологичным пересадочным костным блоком для восстановления узкой зубной дуги перед установкой имплантата. Были отобраны восемнадцать пациентов с частичной адентией, у которых недостаточная ширина кости (менее 4 мм) в местах установки имплантатов.
Один или несколько цилиндрических пересадочных костных блоков были собраны при помощи трепана с нижней челюсти и стабилизированы титановыми мини-винтами. Зафиксированные пересадочные блоки были покрыты безбелковой бычьей костной мембраной и коллагеновой мембраной. Среднее количество взятой кости составляло 3,6 мм. Один из 24 пересадочных блоков был потерян в начале периода восстановления. Пять месяцев спустя во время повторного визита для установки имплантатов ширина полученной зубной дуги была измерена. Все имплантаты были поставлены в правильные позиции и считались успешно интегрированными во время периода наблюдения. Через три месяца после установки имплантата было начато протезирование.
Среднее наблюдение после простетической нагрузки составляло 25,4 месяца.

Эта техника является надежным средством коррекции узкой зубной дуги с адентией. Плотный контакт между пересадочным костным блоком и поверхностью реципиентного ложа обеспечивает быструю и интенсивную васкуляризацию, а в последующем — остеоинтеграцию пересадочного костного блока. Добавление бычьего костного минерала и коллагеновой мембраны на пересадочный костный блок минимизирует рассасывание костных тканей во время выздоровления.
Во всех случаях все запланированные имплантаты могут быть установлены в правильных позициях.
Средняя длительность последующего наблюдения за имплантатами составляет 25,4 месяца. Зубное протезирование включало единичные коронки или мосты.
Во время периода наблюдения не был утрачен ни один имплантат. Все имплантаты были успешными как с точки зрения эстетики, так и с точки зрения функциональности.


 

References

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10. Cordaro, L., Amade, D. S. & Cordaro, M. (2002) Clinical results of alveolar ridge aug- mentation with mandibular block bone grafts in partially edentulous patients prior to implant placement. Clinical Oral Implants Research 13,103–111.

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