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International Poster Journal of Dentistry and Oral Medicine



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Int Poster J Dent Oral Med 15 (2013), Osteology     30. June 2013
Int Poster J Dent Oral Med 15 (2013), Osteology  (30.06.2013)

Supplement, Poster 707, Language: English

The Effect of Implant Length and Diameter on the Primary Stability in Different Bone Types
Rokn, Amirreza / Barikani, Hamidreza / Rashtak, Shadab / Akbari, Soolmaz / Badri, Samare
Problem statement: The focus of this paper is to evaluate the influence of implant mechanical characteristics on primary stability in different bone types, based on resonance frequency analysis (RFA).
Methods of study: A number of 60 Nobel Biocare Replace Select Ti-Unit Tapered implants of two different lengths (10 mm and 13 mm) and three different widths as 3.4 mm (narrow platform (NP)), 4.3 mm (regular platform (RP)) and 5 mm (wide platform (WP)) were placed into two different groups of bone blocks. Bone blocks were different in bone quality but similar to the bone types D1 and D3. Immediately after the implant placement, implant stability quotient (ISQ) was measured using the Osstell mentor device.
Results: ISQ values for implant placements in D1 bone were found to be significantly higher than those for implants placed in D3 bone. In D1 bone, implant length did not make any significant difference in primary stability; however, in D3 bone implant primary stability increased when longer implants were utilized. NP implants presented significantly lower ISQ values compared to two wider implants.
Conclusions: In cases of low bone quality, optimum increase in implant length and diameter should be taken into account to achieve higher primary stability.

Keywords: primary stability, implant length, implant diameter, bone type

International Osteology Symposium 2013
May 2-4, 2013
Grimaldi Forum, Monaco