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Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...

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The vented crown: a pictorial case report.

B Small1

  • 1dr.bruce.small@gmail.com

Operative Dentistry
|October 25, 2012
PubMed
Summary

Venting dental crowns improves marginal fit, enhancing restoration longevity. This technique, applicable to cast gold and porcelain-fused-to-metal crowns, details preparation, lab work, and seating.

Area of Science:

  • Dental Materials Science
  • Prosthodontics
  • Restorative Dentistry

Background:

  • Optimal marginal fit is crucial for dental restoration longevity.
  • Venting dental crowns is an important factor influencing marginal fit.
  • Previous studies highlight the significance of crown venting.

Purpose of the Study:

  • To describe and demonstrate the technique for preparing, fabricating, and seating a vented cast gold crown.
  • To illustrate the application of this venting technique for improved marginal adaptation.
  • To highlight the adaptability of the venting technique for porcelain-fused-to-metal crowns.

Main Methods:

  • Detailed case report of a vented cast gold crown.
  • Step-by-step description of crown preparation, laboratory fabrication, and clinical seating.

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  • Inclusion of finishing procedures for the vented crown.

    • Main Results:

    • Successful preparation, laboratory fabrication, and clinical seating of a vented cast gold crown were achieved.
    • The described technique facilitates optimal marginal fit.
    • The venting method is applicable to both cast gold and porcelain-fused-to-metal restorations.

    Conclusions:

    • The venting technique is a valuable method for achieving optimal marginal fit in dental crowns.
    • This technique contributes to improved longevity of dental restorations.
    • The described procedure is versatile and can be applied to various crown types, including porcelain-fused-to-metal restorations.