The Evolution of External and Internal Implant–Abutment Connections: A Review

D.R. Prithviraj (1), Ninad Muley (2), Vikas Gupta (3)
(1) Dental College and Research Institute, Dept. of Prosthodontics govt., Bangalore, INDIA, India,
(2) Dental College and Research Institute, Dept. of Prosthodontics govt., Bangalore, INDIA, India,
(3) Dental College and Research Institute, Dept. of Prosthodontics govt., Bangalore, INDIA, India

Abstract

A study of the implant–abutment connection is of great importance because it is the primary determinant of the strength and stability of an implant-supported restoration, which, in turn, determines the restoration’s prosthetic stability. Traditionally, Brånemark’s external hexagon has been used, but significant complications, such as abutment screw loosening, rotational misfit at the implant–abutment interface, and microbial penetration have led to modification of the external hexagon and the development of internal implant–abutment connections. In this review, we describe various implant–abutment connections that have evolved over time from the traditional external hexagon. 


How to cite this article: Alharissy M, Dayoub S. The Evolution of External and Internal Implant–Abutment Connections: A Review. Int Dent Res 2012;2:37-42.


Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

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Authors

D.R. Prithviraj
Ninad Muley
Vikas Gupta
Prithviraj, D., Muley, N., & Gupta, V. (2012). The Evolution of External and Internal Implant–Abutment Connections: A Review. International Dental Research, 2(2), 37–42. https://doi.org/10.5577/intdentres.2012.vol2.no2.3
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