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Journal of Long-Term Effects of Medical Implants
SJR: 0.145 SNIP: 0.491 CiteScore™: 0.89

ISSN Imprimir: 1050-6934
ISSN On-line: 1940-4379

Journal of Long-Term Effects of Medical Implants

DOI: 10.1615/JLongTermEffMedImplants.2015012034
pages 209-213

High Insertion Torque and Peri-Implant Bone Loss: Is There a Relationship?

Mohsen Bidgoli
Faculty of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
Sara Soheilifar
Faculty of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
Javad Faradmal
Department of Biostatistics, Epidemiology, and Modeling of Noncommunicable Diseases Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
Sepideh Soheilifar
Department of orthodontics, Faculty of dentistry, Hamadan university of Medical science, Hamadan, Iran

RESUMO

Because primary stability has a critical role in implant osseointegration, greater insertion torque is more desirable. However, excessive pressure on the peri-implant bone may lead to bone resorption. This study evaluates the effect of insertion torque on crestal bone level. Periapical radiographs of 136 bone-level implants were assessed in this retrospective cohort study. Sixty-four implants were inserted with high insertion torques (45-70 N/cm) and 72 implants were placed with a torque in the range of 20 to 30 N/cm. The distance between implant shoulder and proximal bone crest was measured on radiographs taken immediately after the insertion and compared to those calculated after uncovering surgeries (inserting the healing abutment). The mean bone resorption around implants placed with high and lower insertion torques was 0.33 and 0.4, respectively; thus, the difference between the two groups was insignificant (p = 0.88). High insertion torques (up to 70 N/cm) did not significantly increase bone resorption around implants.


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