Evaluation of the insertion torque, implant stability quotient and drilled hole quality for different drill design: an in vitro Investigation.

Autor: Gehrke SA; Department of Research Biotecnos - Technology and Science, Santa Maria Brazil, Catholic University San Anotnio of Murcia, Murcia, Spain., Guirado JLC; Chairman of International Research Cathedra, Universidad Católica San Antonio de Murcia (UCAM), Murcia, Spain., Bettach R; Adjunct Associate Professor New York University, New York, USA., Fabbro MD; Academic Researcher, Università degli Studi di Milano, Director of the Research Center in Oral Health, Department of Biomedical, Surgical and Dental Sciences, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy., Martínez CP; Associate Professor of International Research Cathedra, Universidad Católica San Antonio de Murcia (UCAM), Murcia, Spain., Shibli JA; Department of Periodontology and Oral Implantology, Dental Research Division, University of Guarulhos, Guarulhos, SP, Brazil.
Jazyk: angličtina
Zdroj: Clinical oral implants research [Clin Oral Implants Res] 2018 Jun; Vol. 29 (6), pp. 656-662. Date of Electronic Publication: 2016 Mar 08.
DOI: 10.1111/clr.12808
Abstrakt: Objective: The purpose of the present study was to compare the insertion torque and implant stability quotient between different drill design for implant site preparation.
Materials and Methods: Synthetic blocks of bone (type I density) were used for drilling procedures. Three groups were evaluated: Group G1 - drilling with a single bur for a 4.2 mm conical implant; Group G2 and Group G3 - drilling with three consecutive burs for a 4.1 mm cylindrical implant and for a 4.3 mm conical implant respectively. For each group, 15 drilling procedures were performed without irrigation for 10-mm in-depth. The drilled hole quality (HQ) after the osteotomy for implant site preparation was measured in the five-first holes through a fully automated roundness/cylindricity instrument at three levels (top, middle, and bottom of the site). The insertion torque value (ITV) was achieved with a computed torquimeter and the implant stability quotient (ISQ) values were measured using a resonance frequency apparatus.
Results: The single drill (group 1) achieved a significantly higher ITV and ISQ than the multiple drills for osteotomy (groups 2 and 3). Group 1 and 3 displayed significantly better HQ than group 2.
Conclusions: Within the limitations of the study, the results suggest that the hole quality, in addition to the insertion torque, may significantly affect implant primary stability.
(© 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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