Which Factors have an Impact on the Retention of Cemented Crowns on Implant Abutments? A Literature Review

Prause E,Rosentritt M,Beuer F,Hey J

doi:10.16966/2378-7090.378

Abstract

Background: The review presents the scientific state of the art in the field of cementation of crowns on implants. Because semipermanent cements have been specially developed for the cementation of crowns on implants, the question arises whether this cement group offers an advantage compared to other available and widely used cements in everyday clinical practice. Various factors play a role on the retentive strength of superstructures on implants and should therefore be taken into account in this review.

Highlights

The review presents the scientific state of the art in the field of cementation of crowns on implants
Significant correlations have been demonstrated between retention force and cement type, crown pretreatment, taper, abutment surface, internal surface cleaning, cement gap, and the presence of grooves on the abutment (Pearson’s bivariate correlation; P
This review revealed that there are several influencing factors on the retention of crowns which were temporary cemented on implants abutments

Summary

Introduction

The review presents the scientific state of the art in the field of cementation of crowns on implants. Because semipermanent cements have been specially developed for the cementation of crowns on implants, the question arises whether this cement group offers an advantage compared to other available and widely used cements in everyday clinical practice. Implant-supported crowns can be retained by screws or cement. A further advantage is the option of accessing the screw channel to loosen or reattach the implant-supported restoration [2,3,4,5]. Technical complications, including loosening or fracture of the abutment screw, occurred significantly more often with screwretained single crowns than they did with cement-retained single crowns [6]. Cemented crowns on implants have a lower rate of technical complications compared to screw-retained crowns, they are often only temporarily cemented. The procedure can be carried out routinely [3,8]

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Results

Discussion

Conclusion