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Combining the effects of undersized drilling and bone density on implant insertion torque
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Keywords

Dental implantation. Torque. Bone density. Drilling techniques.

How to Cite

1.
Camargo BA, Nunes DB, Spazzin AO, Federizzi L, Schuh C, Gomes Érica A. Combining the effects of undersized drilling and bone density on implant insertion torque. Braz. J. Oral Sci. [Internet]. 2017 Aug. 11 [cited 2024 May 28];15(3):201-4. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8649981

Abstract

Aim: This study evaluated the influence of surgical undersized drilling on insertion torque of an implant system at low bone density. Methods: Implant site preparations were made in two polyurethane foam blocks with different densities, where two preparation techniques were considered: Control group (C): conventional drilling, following the manufacturer’s instructions; and Group (E): undersized drilling, experimental technique using a final surgical drill with reduced diameter. The artificial bone blocks were selected based on density: D1 (0.64 g/cm3) and D2 (0.32 g/cm3). Three groups were considered according to the preparation technique and bone density used (n=10): CD1 – conventional drilling technique in artificial bone with higher density; CD2 – conventional drilling technique in artificial bone with lower density; and ED2 – undersized drilling in artificial bone with lower density. Externalhexagon implants (11 × 4 mm) were inserted and the insertion torque values were measured using a digital torque-meter. Data were submitted to one-way ANOVA followed by Tukey’s test (α=0.05). Results: The results showed significant statistical differences between groups (p<0.001), where the highest insertion torque was found for the Group CD1 (48.9 Ncm) followed by Group ED2 (22.6 Ncm) and Group CD2 (11.7 Ncm). Conclusions: The undersized drilling technique for implant site preparation leads to increased insertion torque on low bone density.

https://doi.org/10.20396/bjos.v15i3.8649981
PDF (Português (Brasil))

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