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Background <p>Implant stability is essential for successful osseointegration. The timing of implant placement may influence primary and secondary stability. Limited observational data integrate biomechanical and biological parameters such as insertion torque and marginal bone loss.</p> Aim <p>To compare implant stability between immediate and delayed implant placement using resonance frequency analysis and to assess insertion torque and marginal bone loss over 6 months.</p> Design <p>A prospective observational study was conducted among fifty patients receiving single-tooth implants. Implant stability was assessed at placement and at 9, 19, and 25 weeks. Insertion torque was recorded at placement, and marginal bone loss was evaluated radiographically at baseline, three months, and 6 months.</p> Results <p>Delayed implants showed significantly higher stability at all time points (p &lt; 0.05). Mean insertion torque was higher in delayed implants (53.0 ± 16.2 Ncm) than immediate implants (34.0 ± 2.1 Ncm) (p &lt; 0.05). Marginal bone loss remained within clinically acceptable limits in both groups.</p> Conclusion <p>Delayed placement demonstrated higher stability, while immediate placement achieved functional stability by 6 months. The combined use of resonance frequency analysis, insertion torque, and marginal bone loss assessment supports individualized loading decisions.</p>

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Immediate Versus Delayed Implant Placement: A Prospective Clinical Study on Comparison of Implant Stability and Marginal Bone Changes

  • 期刊论文

  • 发表日期：

    2026年7月7日

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  • Barnakshi Deka,
  • Subhas Chandra Debnath,
  • Tanmoy Nath,
  • P. Vigneshkumar,
  • Anovili N. Chishi,
  • Payal Poddar

摘要

Background

Implant stability is essential for successful osseointegration. The timing of implant placement may influence primary and secondary stability. Limited observational data integrate biomechanical and biological parameters such as insertion torque and marginal bone loss.

Aim

To compare implant stability between immediate and delayed implant placement using resonance frequency analysis and to assess insertion torque and marginal bone loss over 6 months.

Design

A prospective observational study was conducted among fifty patients receiving single-tooth implants. Implant stability was assessed at placement and at 9, 19, and 25 weeks. Insertion torque was recorded at placement, and marginal bone loss was evaluated radiographically at baseline, three months, and 6 months.

Results

Delayed implants showed significantly higher stability at all time points (p < 0.05). Mean insertion torque was higher in delayed implants (53.0 ± 16.2 Ncm) than immediate implants (34.0 ± 2.1 Ncm) (p < 0.05). Marginal bone loss remained within clinically acceptable limits in both groups.

Conclusion

Delayed placement demonstrated higher stability, while immediate placement achieved functional stability by 6 months. The combined use of resonance frequency analysis, insertion torque, and marginal bone loss assessment supports individualized loading decisions.