Fracture resistance after implantoplasty in three implant-abutment connection designs
Med. oral patol. oral cir. bucal (Internet)
; 25(5): e691-e699, sept. 2020. tab, graf, ilus
Artigo
em Inglês
| IBECS
| ID: ibc-196526
Biblioteca responsável:
ES1.1
Localização: BNCS
ABSTRACT
BACKGROUND:
To assess the effect of implantoplasty and implant-abutment design on the fracture resistance and macroscopic morphology of narrow-diameter (3.5 mm) dental implants. MATERIAL ANDMETHODS:
SCREW-shaped titanium dental implants (n = 48) were studied in vitro. Three groups (n = 16) were established, based on implant-abutment connection type external hexagon, internal hexagon and conical. Eight implants from each group were subjected to an implantoplasty procedure; the remaining 8 implants served as controls. Implant wall thickness was recorded. All samples were subjected to a static strength test.RESULTS:
The mean wall thickness reductions varied between 106.46 and 153.75 μm. The mean fracture strengths for the control and test groups were, respectively, 1211.90 ± 89.95 N and 873.11 ± 92.37 N in the external hexagon implants; 918.41 ± 97.19 N and 661.29 ± 58.03 N in the internal hexagon implants; and 1058.67 ± 114.05 N and 747.32 ± 90.05 N in the conical connection implants. Implant wall thickness and fracture resistance (P < 0.001) showed a positive correlation. Fracture strength was influenced by both implantoplasty (P < 0.001) and connection type (P < 0.001).CONCLUSIONS:
Implantoplasty in diameter-reduced implants decreases implant wall thickness and fracture resistance, and varies depending on the implant-abutment connection. Internal hexagon and conical connection implants seem to be more prone to fracture after implantoplastyRESUMEN
No disponible
Texto completo:
Disponível
Coleções:
Bases de dados nacionais
/
Espanha
Base de dados:
IBECS
Assunto principal:
Implantação Dentária
/
Projeto do Implante Dentário-Pivô
/
Resistência à Flexão
Idioma:
Inglês
Revista:
Med. oral patol. oral cir. bucal (Internet)
Ano de publicação:
2020
Tipo de documento:
Artigo
Instituição/País de afiliação:
Efhre International University/Belize
/
University of Barcelona/Spain