The 7/8 Crown: A Lost Art
Author(s) -
ST McGill,
J. R. Holmes
Publication year - 2012
Publication title -
operative dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.965
H-Index - 81
eISSN - 1559-2863
pISSN - 0361-7734
DOI - 10.2341/11-402-t
Subject(s) - veneer , inlay , gold alloys , crown (dentistry) , dentistry , dental porcelain , dental restoration , orthodontics , ceramic , materials science , medicine , composite material , alloy
SUMMARY Historically, the longevity of teeth restored with gold inlays, onlays, crowns, and partial veneer restorations is excellent. However, in-office computer-aided design and computer-aided manufacturing restorations, laboratory-constructed all-ceramic bonded restorations, and conventional ceramo-metal restorations are more common. The high price of gold, the difficulty of the preparation, and the fact that most dental schools are de-emphasizing the teaching of partial veneer restorations has created a situation whereby the 7/8 crown is rarely viewed as the treatment of choice. Time and experience will determine if the new ceramic materials, along with the all-important bonding agents, can achieve the success of a well-done, all-gold restoration.
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