Condition of Crown
The assessment of the crown of the tooth before the extraction should be related to the presence of large caries or restorations In the crown, If large portion of the crown have been destroyed by caries the likelihood of crushing the crown during the extraction is increased.Thus causing more difficulty In removing’ the tooth (Fig, 7.2), similarly, the presence of large amalgam restorations will produce a weakness In the crown, and the: restoration will probably fracture during the extraction process (Fig, 7’J), In these two situations It Is critical that the forceps be applied is far apically as possible so as to grasp the root portion of the tooth instead of the crown.
If the tooth to be extracted has a large accumulation of . calculus, the gross accumulation should be removed with a scaler or ultrasonic cleaner before extraction. The reasons for this are that calculus interferes with the placement of the forceps in the appropriate fashion, and fractured calculus may contaminate the empty tooth socket once the tooth is extracted.
The surgeon should also assess the condition of the adjacent teeth. If the adjacent teeth have large amalgams or crowns or have had endodontic therapy, it is important to keep this in mind when elevators and forceps are used to mobilize and remove the indicated tooth. If the adjacent teeth have large restorations, the surgeon should use elevators with extreme caution because fracture of the restorations may occur (Fig.. 7-4). The patient should be informed before the surgical procedure about possible
damage to these restorations.