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An Improved Mechanical Testing Method to Assess Bone-implant Anchorage
Published on: February 10, 2014
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Relation Between Insertion Torque and Implant Stability Quotient: A Clinical Study.
João Paulo do Vale Souza1, Clóvis Lamartine de Moraes Melo Neto1, Lucas Tavares Piacenza1
1Department of Dental Materials and Prosthodontics, Araçatuba Dental School, São Paulo State University, Araçatuba, São Paulo, Brazil.
European Journal of Dentistry
|July 7, 2021
Summary
Higher insertion torque correlates with greater initial implant stability quotient (ISQ). However, this relationship does not hold for secondary stability measured 6 months post-placement.
Area of Science:
- Dental Implantology
- Biomaterials Science
- Orthodontics
Background:
- Implant stability is crucial for successful osseointegration.
- Insertion torque and implant stability quotient (ISQ) are common metrics for assessing primary stability.
Purpose of the Study:
- To evaluate the correlation between insertion torque and ISQ at placement and 6 months later.
- To understand the relationship between initial mechanical insertion forces and implant stability over time.
Main Methods:
- Twenty-five patients received a single dental implant.
- Insertion torque (Ncm) and ISQ values were recorded immediately after surgery.
- ISQ was re-measured at 6 months to assess secondary stability.
- Pearson's correlation analysis was employed.
Main Results:
- A significant positive correlation was found between insertion torque and initial ISQ (r=0.457, p=0.022).
- No significant correlation was observed between insertion torque and final ISQ at 6 months (p=0.308).
Conclusions:
- Insertion torque is a reliable indicator of initial implant stability.
- The correlation between insertion torque and implant stability diminishes over time.
- Higher insertion torque leads to higher initial ISQ, but this does not predict long-term stability.
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