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[Cervical limits and contour forms as a function of material technology].

J J Simon

    Revue D'Odonto-Stomatologie
    |September 1, 1989
    PubMed
    Summary
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    This article details tooth preparation guidelines for porcelain crowns, covering contour forms, cervical margin profiles based on materials, and the critical role of marginal fit for preventing microleakage and enhancing aesthetics.

    Area of Science:

    • Dental materials science
    • Restorative dentistry
    • Prosthodontics

    Context:

    • Tooth preparation is fundamental for successful porcelain crown restorations.
    • Understanding various contour forms and cervical margin designs is crucial for predictable outcomes.

    Purpose:

    • To review established tooth preparation forms for porcelain crowns.
    • To describe cervical margin profiles and their material-dependent evolution.
    • To highlight the significance of marginal fit for clinical success.

    Summary:

    • The article examines tooth preparation objectives for porcelain crowns, referencing contour forms by Gonon, LE Huche, Poggioli, and Leibowitch.
    • It details cervical margin profiles and their adaptation to different dental materials.
    • The importance of precise marginal fit is discussed concerning microleakage prevention and esthetic results.

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    Impact:

    • Provides essential knowledge for dentists performing tooth preparation for porcelain crowns.
    • Aids in selecting appropriate cervical margin designs based on restorative materials.
    • Emphasizes the link between proper preparation, marginal integrity, and long-term restoration success.