Slide Pubblicazioni Scientifiche

DZZ | Deutsche Zahnärztliche Zeitschrift – September 2015 – Stabilization of removable partial dentures using mini-implants – 2 case reports

Written by C-Tech Implants | Forniture e Impianti Dentali on . Posted in Scientific Publications

DZZ | Deutsche Zahnärztliche Zeitschrift • September 2015

Stabilization of removable partial dentures using mini-implants – 2 case reports

Prof. Dr. Torsten Mundt Center for Dental, Oral and Maxillofacial Surgery Greifswald
Polyclinic for dental prosthetics and materials science
University Medical Center, Christian Lucas, Reiner Biffar University of Greifswald · Department of Prosthodontics, Geriatric Dentistry and Medical Materials Science, Friedhelm Heinemann University of Greifswald · Department of Prosthodontics, Geriatric Dentistry and Medical Materials Science

Why should you read this article?
This case report is a guide, how mini-implants can be used as strategic abutments for the stabilization of removable partial dentures and for the support of the remaining teeth.

Introduction: The use of conventional dental implants as strategic abutments for existing removable partial dentures is expensive and requires a sufficient alveolar ridge width. The one-piece mini dental implants (< 2.8 mm) provide an alternative treatment option for this indication.

Treatment method: A therapy scheme for strategic mini dental implants (MDI, 3M ESPE Dental GmbH, Seefeld, Germany) includes 3 abutments (teeth + implants) per maxillary quadrant and 2 abutments per mandibular quadrant.

Results: In the first case report, a female patient lost one of her 2 mandibular canine conical crown abutments. Subsequently, 2 mini dental implants were inserted with sufficient primary stability (insertion torque > 35 Ncm) and were immediately loaded with the matrices by using intraoral polymerisation.
The second female patient had 2 remaining molars. After the placement of 4 MDIs (insertion torque 20–25 Ncm), the removable partial denture, which is retained by conical crowns, was relined using a soft material. Four months later, the matrices were polymerized into the denture in the dental laboratory across impression.

Conclusion: Supplementary strategic abutments using mini dental implants requires following the recommendations for the number and location of MDIs, load approach, anatomical knowledge, surgical experience especially in dealing with the jawbone, and sufficient prosthetic experience.



1. Ellis JS, Levine A, Bedos C et al.: Refusal of implant supported mandibular overdentures by elderly patients. Gerodontology 2011;28:62–68

2. Elsyad MA, Gebreel AA, Fouad MM, Elshoukouki AH: The clinical and radiographic outcome of immediately loaded mini implants supporting a mandibular overdenture. A 3-year prospective study. J Oral Rehabil 2011;38:827–834

3. Elsyad MA, Ghoneem NE, El-Sharkawy H: Marginal bone loss around unsplinted mini-implants supporting maxillary overdentures: a preliminary comparative study between partial and full palatal coverage. Quintessence Int 2013;44:45–52

4. Esposito M, Grusovin MG, Maghaireh H, Worthington HV: Interventions for replacing missing teeth: different times for loading dental implants. Cochrane Database Syst Rev 2013, Mar 28;3:CD003878. doi:10.1002/14651858.CD003878.pub5. Review

5. Flanagan D, Mascolo A: The mini dental implant in fixed and removable prosthetics: a review. J Oral Implantol 2011;37(Spec No):123–132

6. Fuh LJ, Huang HL, Chen CS et al.: Variations in bone density at dental implant sites in different regions of the jawbone. J Oral Rehabil 2010;37:346–351

7. Griffitts TM, Collins CP, Collins PC: Mini dental implants: an adjunct for retention, stability, and comfort for the edentulous patient. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2005;100:e81–e84

8. Hasan I, Bourauel C, Mundt T, Stark H, Heinemann F: Biomechanics and load resistance of small-diameter and mini dental implants: a review of literature. Biomed Tech 2014;59:1–5

9. Heinemann F, Bourauel C, Hasan I, Mundt T: Mini-Implantate als strategische Pfeiler zur verbesserten Retention von Teilprothesen. Implantol J 2014;18:26–33

10. Huemer P, Huemer B, Gollmitzer I: Mini-Implantate – Möglichkeiten und Grenzen im zahnlosen Unterkiefer. Quintessenz 2013;64:315–325

11. Klein MO, Schiegnitz E, Al-Nawas B: Systematic review on success of narrow-diameter implants. Int J Oral Maxillofac Implant 2014;29:43–54

12. Krennmair G, Krainhöfner M, Waldenberger O, Piehslinger E: Dental implants as strategic supplementary abutments for implant tooth-supported telescopic crown-retained maxillary dentures: a retrospective follow-up study for up to 9 years. Int J Prosthodont 2007;20:617–622

13. Mangano FG, Caprioglio A, Levrini L, Farronato D, Zecca PA, Mangano C: Immediate loading of mandibular overdentures supported by one-piece, direct metal laser sintering mini-implants: A short-term prospective clinical study. J Periodontol. 2014;2:1–13.[Epub ahead of print]

14. Morneburg TR, Pröschel PA: Success rates of microimplants in edentulous patients with residual ridge resorption. Int J Oral Maxillofac Implants 2008;23:270–276

15. Mundt T, Heinemann F, Stark T, Schwahn C, Biffar R: Verlustanalyse von Mini-Implantaten zur Fixierung totaler Prothesen. Dtsch Zahnärztl Z 2014;69:262–270

16. Mundt T, Schwahn C, Stark T, Biffar R: Clinical response of edentulous people treated with mini dental implants in nine dental practices. Gerodontology 2015;32:179–187

17. Preoteasa E, Imre M, Preoteasa CT: A 3-year follow-up study of overdentures retained by mini-dental implants. Int J Oral Maxillofac Implants 2014;29:1170–1176

18. Rammelsberg P, Bernhart G, Lorenzo Bermejo J, Schmitter M, Schwarz S: Prognosis of implants and abutment teeth under combined tooth-implant supported and solely implant supported double-crown-retained removable dental prosthesis. Clin Oral Implants Res 2014;25:813–818

19. Scepanovic M, Calvo-Guirado JL, Markovic A et al.: A 1-year prospective cohort study on mandibular overdentures retained by mini dental implants. Eur J Oral Implantol 2012;5:367–379

20. Shatkin TE, Petrotto CA: Mini dental implants: a retrospective analysis of 5640 implants placed over a 12-year period. Compend Contin Educ Dent 2012;33(Spec 3):2–9

21. Walzer W: Mini-Implantate zur Stabilisierung von Teilprothesen. Dent Implantol 2013;17:396–401

22. Wentaschek S, Scheller H, Schmidtmann I et al: Sensitivity and specificity of stability criteria for immediately loaded splinted maxillary implants. Clin Implant Dent Relat Res 2014, Dec 23. doi:10.1111/cid.12283. [Epub ahead of print]

Prefooter ENG