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Tooth preparation techniques for porcelain laminate veneers.

P A Brunton1, A Aminian, N H Wilson

  • 1Unit of Operative Dentistry and Endodontology, University Dental Hospital of Manchester. paul.brunton@man.ac.uk

British Dental Journal
|October 26, 2000
PubMed
Summary

Dental guides, such as silicone indexes or depth preparation burs, improve the consistency of tooth preparation for porcelain laminate veneers. These tools aid operators in achieving appropriate labial depth and incisal reduction.

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Area of Science:

  • Dentistry
  • Restorative Dentistry
  • Dental Materials

Background:

  • Porcelain laminate veneers are a common cosmetic dental restoration.
  • Accurate tooth preparation is crucial for veneer longevity and aesthetics.
  • Operator variability can impact the quality of tooth preparation.

Purpose of the Study:

  • To evaluate the impact of two guiding tools on the precision of tooth preparation for porcelain laminate veneers.
  • To assess the consistency of labial depth and incisal reduction during veneer preparation.

Main Methods:

  • An in-vitro study involving thirty typodont central incisor teeth.
  • Teeth were prepared for porcelain laminate veneers by a general dental practitioner.
  • Three groups were used: freehand preparation, silicone index guidance, and depth preparation bur guidance.

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Main Results:

  • The silicone index and depth preparation bur groups showed increased mean labial reduction compared to freehand preparation.
  • Incisal reduction was comparable across all three groups.
  • The guiding tools demonstrated potential to enhance preparation consistency.

Conclusions:

  • The use of a silicone index or depth preparation bur is recommended for consistent tooth preparation in porcelain laminate veneer procedures.
  • These guides can help minimize operator variability in achieving desired preparation depths.