Gold or Porcelain Onlays

An onlay is a restoration that is recommended instead of a crown procedure which requires drilling. Today dentists use porcelain instead of gold. Porcelain onlays rely only on bond strength in the same way the space shuttles heat shield tiles are glued or bonded in place.

Read more: http://www.zakdental.com/gold-vs-porcelain-onlays/

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