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Effect of insertion load on insertion torque value.

Po-Yuan Hsueh1, Yoko Yamaguchi1, Yasutomo Yajima1

  • 1Tokyo Clinic, Matsumoto Dental University, 1040061, Tokyo, Japan.

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This study shows that insertion load significantly impacts dental implant primary stability and insertion time. Optimizing insertion load based on specific implant design is crucial for better clinical outcomes.

Keywords:
Dental implantEarly failureInsertion loadPrimary stabilityTorque-time curve

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Area of Science:

  • Dental Implantology
  • Biomaterials Science
  • Biomechanics

Background:

  • Primary implant stability is crucial for successful osseointegration.
  • Insertion load is a key factor influencing primary implant stability.
  • Understanding the relationship between insertion load and implant design is essential for clinical practice.

Purpose of the Study:

  • To evaluate the effect of insertion load on primary implant stability.
  • To compare insertion torque and insertion time across different dental implant designs.
  • To determine optimal insertion load parameters for various implant geometries.

Main Methods:

  • Four distinct dental implant designs (standard cylindrical, tapered effect hybrid, bone level hybrid, bone level tapered) were tested.
  • Polyurethane bone models simulating the maxillary posterior region were utilized.
  • Insertion torque value (ITV) and insertion time were recorded under minimum and 5.0 N load conditions using a torque meter.

Main Results:

  • Insertion torque varied significantly across implant designs, with the bone level tapered implant showing the highest torque.
  • Increasing insertion load from minimum to 5.0 N generally decreased insertion time, particularly for the bone level tapered implant.
  • Hybrid implant designs demonstrated higher sensitivity to variations in insertion load.

Conclusions:

  • Insertion load is a critical factor influencing primary implant stability and insertion dynamics.
  • Tailoring insertion load to specific implant designs, especially hybrid types, can optimize clinical outcomes.
  • Further research into load-dependent implant stability is warranted for enhanced predictability.