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Primary stability and self‐tapping blades: biomechanical assessment of dental implants in medium‐density bone
Author(s) -
Kim YungSoo,
Lim YoungJun
Publication year - 2011
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/j.1600-0501.2010.02089.x
Subject(s) - tapping , resonance frequency analysis , implant stability quotient , implant , materials science , dentistry , orthodontics , initial stability , cortical bone , bone density , dental implant , biomedical engineering , medicine , surgery , osteoporosis , mechanical engineering , anatomy , engineering , endocrinology
Aim: The aim of this biomechanical study was to assess the influence of self‐tapping blades in terms of primary implant stability between implants with self‐tapping blades and implants without self‐tapping blades using five different analytic methods, especially in medium‐density bone. Materials and methods: Two different types of dental implants (4 × 10 mm) were tested: self‐tapping and non‐self‐tapping. The fixture design including thread profiles was exactly the same between the two groups; the only difference was the presence of cutting blades on one half of the apical portion of the implant body. Solid rigid polyurethane blocks with corresponding densities were selected to simulate medium‐density bone. Five mechanical assessments (insertion torque, resonance frequency analysis [RFA], reverse torque, pull‐out and push in test) were performed for primary stability. Results: Implants without self‐tapping blades showed significantly higher values ( P <0.001) in four biomechanical assessments, except RFA ( P =0.684). However, a statistically significant correlation could not be detected between insertion torque values with the four different outcome variables ( P >0.05). Conclusions: The outcomes of the present study indicate that the implant body design without self‐tapping blades has a good primary stability compared with that with self‐tapping blades in medium‐density bone. Considering the RFA, a distinct layer of cortical bone on marginal bone will yield implant stability quotient values similar to those in medium‐bone density when implants have the same diameter. To cite this article:
Kim Y‐S, Lim Y‐J. Primary stability and self‐tapping blades: biomechanical assessment of dental implants in medium‐density bone.
Clin. Oral Impl. Res . 22 , 2011; 1179–1184.
doi: 10.1111/j.1600‐0501.2010.02089.x