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Related Experiment Videos

Iatrogenic damage to adjacent teeth during classical approximal box preparation

A Lussi1, M Gygax

  • 1Department of Operative, Preventive and Pediatric Dentistry, University of Bern, School of Dental Medicine, Switzerland.

Journal of Dentistry
|August 12, 1998
PubMed
Summary

Conventional dental preparation methods often damage adjacent teeth. A new specialized system significantly reduced this iatrogenic damage during approximal box preparation, minimizing the need for further restorative treatment.

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Area of Science:

  • Dentistry
  • Dental Materials
  • Restorative Dentistry

Background:

  • Conventional dental preparation techniques for approximal restorations can inadvertently cause iatrogenic damage to adjacent tooth surfaces.
  • This damage may necessitate subsequent restorative procedures, increasing treatment complexity and cost.

Purpose of the Study:

  • To evaluate the occurrence of iatrogenic damage during approximal preparation using conventional methods.
  • To determine if a novel, specialized instrumentation system can significantly reduce such damage in a clinical setting.

Main Methods:

  • Dental practitioners prepared Class II amalgam restorations using either conventional rotary instrumentation (control group) or a new system.
  • The new system included specialized files, a modified handpiece, and a unique bur.

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  • Damage to adjacent tooth surfaces was assessed microscopically.

    • Main Results:

    • All teeth prepared with conventional methods exhibited iatrogenic damage to adjacent surfaces.
    • The novel instrumentation system resulted in a clinically and statistically significant reduction in the incidence and severity of iatrogenic damage.

    Conclusions:

    • Conventional approximal box preparation frequently leads to significant damage of adjacent tooth surfaces.
    • The tested specialized system effectively minimizes iatrogenic damage during proximal box preparation.
    • This reduction in damage has implications for decreasing the need for subsequent restorations on adjacent teeth.