Effect of implant‒abutment connections on abutment screw loosening: An in vitro study
| Autor: | Feridoun Parnia, Amin Nourizadeh, Elnaz Shafiee |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Journal of Dental Research, Dental Clinics, Dental Prospects, Vol 18, Iss 1, Pp 17-22 (2024) |
| Druh dokumentu: | article |
| ISSN: | 2008-210X 2008-2118 |
| DOI: | 10.34172/joddd.29883 |
| Popis: | Background. The widespread use of dental implants as a predictable treatment choice has drawn attention to their complications as a major challenge despite their high clinical success rates. In this context, loosening of the abutment screw in posterior single crowns is the most common problem; the use of adequate preload and proper anti-rotational features at implant‒abutment interface appear to be two main solutions to such a problem. The present study evaluated the effect of implant‒abutment connections in four different implant systems before and after cyclic loading. Methods. Intra-Lock, Dentis, Xive, and Dio implant systems were used in this study. Each system underwent one million cycles of dynamic forces eight times with a magnitude of 110 N. For each specimen after tightening the screw with a torque of 32 Ncm, the detorque values were measured and recorded by a digital torquemeter after and before cyclic loading. Data were analyzed by Kolmogorov-Smirnov, Levene’s, one-way ANOVA, and post hoc Tukey tests. Results. Initial detorque values between the study groups showed significant differences (P |
| Databáze: | Directory of Open Access Journals |
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