Format

Send to

Choose Destination
Clin Oral Implants Res. 2018 Jun;29(6):656-662. doi: 10.1111/clr.12808. Epub 2016 Mar 8.

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

Author information

1
Department of Research Biotecnos - Technology and Science, Santa Maria Brazil, Catholic University San Anotnio of Murcia, Murcia, Spain.
2
Chairman of International Research Cathedra, Universidad Católica San Antonio de Murcia (UCAM), Murcia, Spain.
3
Adjunct Associate Professor New York University, New York, USA.
4
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.
5
Associate Professor of International Research Cathedra, Universidad Católica San Antonio de Murcia (UCAM), Murcia, Spain.
6
Department of Periodontology and Oral Implantology, Dental Research Division, University of Guarulhos, Guarulhos, SP, Brazil.

Abstract

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.

KEYWORDS:

bone density; dental implants; drill precision; insertion torque; resonance frequency analysis

PMID:
26957224
DOI:
10.1111/clr.12808
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Wiley
Loading ...
Support Center