All-ceramic tooth preparation - posterior teeth

Molar preparation with a known diameter of the round the same tapered diamond bur, the first set deep groove in the maxillofacial preparation. Set should include deep groove position and triangular ridge triangular ridge near the distal side of the main developmental groove, the depth to 2mm. Then continue to wear than the fixed residual facial deep groove between the tooth structure. Should be noted that according to the geometric slope facial shape, the preparation, all-ceramic restorations to ensure adequate thickness of the space at the same time, so that the abutment teeth to maintain a certain level. To ensure all-ceramic restorations tongue in cheek slant on the jaw with dental equipment sufficient space, the same function in the base tip of the buccal lingual teeth set deep groove preparation, preparation function should be sharp incline in the direction of the cusp of the maxillary teeth inclined plane roughly parallel. And then grinding in addition to the remaining tooth structure, the space should be prepared to 1.5mm.

After the abutment shaft to ensure that the full amount of surface preparation, first prepared in the buccal and lingual axial groove set. In order to complete the line of ceramic parts of the edge thickness to achieve 1mm, Guan part of the shaft surface preparation must meet not less than 1.5mm thickness. Then remove excess tooth structure, axial gap as much as possible to extend outward show, and do not harm adjacent teeth. This axial plane prepared to complete the formation of a shoulder is also the prototype. Finally, a short needle with a diamond bur prepared two adjacent axial plane, while also preparing the adjacent teeth do not hurt, nor make the teeth oriented adjacent the central axis tilt.