In some cases it may be able to modify the casting so

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In some cases, it may be able to modify the casting so that it will fit ii. If adjustments cannot be done in a relatively short period of time, take a new impression c. The teeth have moved in the mouth so that the interproximal contacts are now interfering i. Proximal contacts are the first places to check if a die is not seating completely ii. After careful adjustment of the contact area(s) on the casting, it should seat d. Some of the temporary cement was left on the tooth when the provisional restoration was removed i. Removal of the offending cement will allow seating of the restoration e. Positive defect inside casting or abraded die i. Removal of the offending bleb will allow seating of the restoration V. Steps in Accomplishing Complete Seating of Crown on Tooth a. Inspect inside of casting under microscope for positive defects, remove defect b. Adjust interproximal contacts with rubber wheel/slow speed handpiece c. Intraoral silicone wash to detect subtle areas of interference i. Place silicone wash inside crown, seat crown on preparation ii. Let wash set completely, remove from tooth iii. Inspect inside of crown for interferences, mark with pencil and remove wash from inside iv. Relieve inferences with hand instrument or bur v. Adjust until complete seating is attained
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  • Fall '15
  • shane mcmahan

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