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Title: | Fracture resistance after implantoplasty in three implant-abutment connection designs |
Author: | Camps Font, Octavi González-Barnadas, Albert Mir Mari, Javier Barbosa de Figueiredo, Rui Pedro Gay Escoda, Cosme Valmaseda Castellón, Eduardo |
Keywords: | Implants dentals intraossis Cirurgia dental Endosseous dental implants Dental surgery |
Issue Date: | 1-Sep-2020 |
Publisher: | Medicina Oral SL |
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 and Methods: 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 gm. 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 implantoplasty. |
Note: | Reproducció del document publicat a: https://doi.org/10.4317/medoral.23700 |
It is part of: | Medicina Oral Patologia Oral y Cirugia Bucal, 2020, vol. 25, num. 5, p. e691-e699 |
URI: | http://hdl.handle.net/2445/173493 |
Related resource: | https://doi.org/10.4317/medoral.23700 |
Appears in Collections: | Articles publicats en revistes (Institut d'lnvestigació Biomèdica de Bellvitge (IDIBELL)) |
Files in This Item:
File | Description | Size | Format | |
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Camps-FontO.pdf | 2.21 MB | Adobe PDF | View/Open |
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