Implant-Abutment Contact Surfaces and Microgap Measurements of Different Implant Connections Under 3-Dimensional X-Ray Microtomography.
Implant Dent
; 25(5): 656-62, 2016 Oct.
Article
em En
| MEDLINE
| ID: mdl-27551879
ABSTRACT
PURPOSE:
The presence of a microgap between implant and abutment could produce a bacterial reservoir which could interfere with the long-term health of the periimplant tissues. The aim of this article was to evaluate, by x-ray 3-dimensional microtomography, implant-abutment contact surfaces and microgaps at the implant-abutment interface in different types of implant-abutment connections. MATERIALS ANDMETHODS:
A total of 40 implants were used in this in vitro study. Ten implants presented a screw-retained internal hexagon abutment (group I), 10 had a Morse Cone taper internal connection (group II), 10 another type of Morse Cone taper internal connection (group III), and 10 had a screwed trilobed connection (group IV).RESULTS:
In both types of Morse Cone internal connections, there was no detectable separation at the implant-abutment in the area of the conical connection, and there was an absolute congruity without any microgaps between abutment and implant. No line was visible separating the implant and the abutment. On the contrary, in the screwed abutment implants, numerous gaps and voids were present.CONCLUSIONS:
The results of this study support the hypothesis that different types of implant-abutment joints are responsible for the observed differences in bacterial penetration.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Projeto do Implante Dentário-Pivô
Tipo de estudo:
Etiology_studies
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article