The effect of implant shape and bone preparation  on primary stability

문상현; 엄흥식; 이재관; chang beomseok; 이민구

The effect of implant shape and bone preparation on primary stability

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Type: Academic journal

Author: 문상현 엄흥식 이재관 chang beomseok 이민구

Journal: 대한치주과학회 Journal of Periodontal & Implant Science Journal of Periodontal & Implant Science 제40권 제5호 KCI Accredited Journals

Published: 2010.1

Pages: 239 - 243 (5page)

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The effect of implant shape and bone preparation on primary stability

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Purpose: The purpose of this study was to evaluate the effects of implant shape and bone preparation on the primary stability of the implants using resonance frequency analysis. Methods: Sixty bovine rib blocks were used for soft and hard bone models. Each rib block received two types of dental implant fixtures; a straight-screw type and tapered-screw type. Final drilling was done at three different depths for each implant type; 1mm under-preparation, standard preparation, and 1 mm over-preparation. Immediately after fixture insertion, the implant stability quotient (ISQ) was measured for each implant. Results: Regardless of the bone type, the ISQ values of the straight-screw type and tapered-screw type implants were not significantly different (P > 0.05). Depth of bone preparation had no significant effect on the ISQ value of straight-screw type implants (P > 0.05). For the tapered-screw type implants, under-preparation significantly increased the ISQ value (P < 0.05), whereas overpreparation significantly decreased the ISQ value (P < 0.05). Conclusions: Within the limitations of this study, it is concluded that bone density seemed to have a prevailing effect over implant shape on primary stability. The primary stability of the tapered-screw type implants might be enhanced by delicate surgical techniques.

#Bone density #Dental implants.

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References (18)

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Akca K / 2006 / Biomechanical aspects of initial intraosseous stability and implant design:a quantitative micro-morphometric analysis / Clin Oral Implants Res 17 : 465 ~ 472

Akkocaoglu M / 2005 / Implant design and intraosseous stability of immediately placed implants: a human cadaver study / Clin Oral Implants Res 16 : 202 ~ 209

Andres-Garcia R / 2009 / In vitro evaluation of the influence of the cortical bone on the primary stability of two implant systems / Med Oral Patol Oral Cir Bucal 14 : E93 ~

Garber DA / 2001 / Two-stage versus onestage--is there really a controversy? / J Periodontol 72 : 417 ~ 421

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