Effect of bone quality and implant surgical technique on implant stability quotient (ISQ) value

Abstract

PURPOSEThis study investigated the influence of bone quality and surgical technique on the implant stability quotient (ISQ) value. In addition, the influence of interfacial bone quality, directly surrounding the implant fixture, on the resonance frequency of the structure was also evaluated by the finite element analysis.MATERIALS AND METHODSTwo different types of bone (type 1 and type 2) were extracted and trimmed from pig rib bone. In each type of bone, the same implants were installed in three different ways: (1) Compaction, (2) Self-tapping, and (3) Tapping. The ISQ value was measured and analyzed to evaluate the influence of bone quality and surgical technique on the implant primary stability. For finite element analysis, a three dimensional implant fixture-bone structure was designed and the fundamental resonance frequency of the structure was measured with three different density of interfacial bone surrounding the implant fixture.RESULTSIn each group, the ISQ values were higher in type 1 bone than those in type 2 bone. Among three different insertion methods, the Tapping group showed the lowest ISQ value in both type 1 and type 2 bones. In both bone types, the Compaction groups showed slightly higher mean ISQ values than the Self-tapping groups, but the differences were not statistically significant. Increased interfacial bone density raised the resonance frequency value in the finite element analysis.CONCLUSIONBoth bone quality and surgical technique have influence on the implant primary stability, and resonance frequency has a positive relation with the density of implant fixture-surrounding bone.

The effects of surgical preparation techniques and implant macro-geometry on primary stability: An in vitro study

“…These results are in line with those reported in literature (25-28). In addition, no statistical differences between Tekka and Maco implants were noted, indicating that the macrogeometry of the manufacturer does not influence implant stability.…”

Implant stabIlIty in dIfferent technIques of surgIcal sites preparatIon: an in vItro study

“…The techniques appear to be comparable and the differences regarding the diameter of the preparation (3-mm for piezo, osteotomes, bone expanders and under-preparation techniques; 3,2 mm for the standard type IV bone technique) do not lead to increased stability. These findings are in line with other in vitro studies that compared two (piezo vs standard) or at most three techniques (24,26,(32)(33)(34). The emerging data is that none of the techniques can change the bone marrow density when the trabeculae are of poor quality.…”

Clinical efficacy of immediate implant loading protocols compared to conventional loading depending on the type of the restoration: a systematic review

“…The studies that reported on this type of prosthesis design all used mandibular overdentures (Chiapasco et al 2001;Romeo et al 2002;Tozum et al 2007;Turkyilmaz & Tumer 2007;Elsyad et al 2012;Turkyilmaz et al 2012). In this indication, implants were placed in the interforaminal region where bone quality and quantity is often optimal, what has a direct impact on the primary stability of the implants (Yoon et al 2011). In fact, different authors have identified the initial implant 974 | Clin.…”