6533b7ddfe1ef96bd1274062

RESEARCH PRODUCT

Influence of Implant Connection, Abutment Design and Screw Insertion Torque on Implant-Abutment Misfit

Maria J SuarezRubén Agustín-panaderoCelia TobarJesús PeláezCarlos Lopez-suarezJorge Vélez

subject

Insertion torqueabutmentAbutmentlcsh:Medicine02 engineering and technologyArticle03 medical and health sciencesinternal connection0302 clinical medicineMedicineTorqueexternal connectionExternal connectionimplant-abutment interfaceMorse taperbusiness.industrylcsh:R030206 dentistryGeneral MedicineStructural engineering021001 nanoscience & nanotechnologyConnection (mathematics)misfitImplant0210 nano-technologybusinessImplant abutment

description

Background: An accurate fit at the implant-abutment interface is an important factor to avoid biological and mechanical complications. The aim of this study was to evaluate the marginal misfit at the implant-abutment interface on external and Morse taper connection, with straight and angulated abutments under different insertion torque loads. Materials and Methods: A total of 120 implants were used, 60 with external connection (EC) and 60 with Morse taper connection (IC). Straight (SA) (n = 60) and angulated abutments (AA) (n = 60) were randomly screwed to each connection at different torque levels (n = 10 each): 10, 20 and 30 Ncm. All specimens were subjected to thermal and cyclic loading and the misfit was measured by scanning electron microscopy. Data were analyzed with one-way ANOVA, t-test and Kruskal-Wallis test. Results: Significant differences (p &lt

yearjournalcountryeditionlanguage
2020-07-24Journal of Clinical Medicine
https://doi.org/10.3390/jcm9082365