Chan Daniel C N
Division of Operative Dentistry, Department of Oral Rehabilitation, Medical College of Georgia, Augusta, GA 30912-1260, USA.
Oper Dent. 2003 Jul-Aug;28(4):469-72.
Proper placement of the matrix and wedge is critical for the success of Class II amalgam restorations. Improper placement of matrix and wedges can result in poor contours or contacts, overhangs or weakness resulting from poorly condensed restorative material. This paper presents a technique for adaptation of a combination of matrix bands in cases where the gingival cavosurface margin extends deep sub-gingivally.
成形片和楔子的正确放置对于Ⅱ类银汞合金修复的成功至关重要。成形片和楔子放置不当会导致外形或邻接关系不良、悬突或因修复材料压实不足而导致的薄弱。本文介绍了一种在龈阶洞缘深入龈下的情况下适配组合成形片带的技术。
