Division of Prosthodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA.
J Prosthet Dent. 2010 Aug;104(2):77-9. doi: 10.1016/S0022-3913(10)60095-9.
Ensuring the longevity of crown restorations is an important objective for the clinician. Veneering porcelain fracture needs to be addressed when considering restoration longevity. This clinical report presents the use of a CAD/CAM-aided design to produce a zirconia substructure with a collar that will achieve the same supportive results as a substructure fabricated by full contour waxing and cut back.
确保牙冠修复体的使用寿命是临床医生的一个重要目标。在考虑修复体的使用寿命时，需要解决贴面瓷折裂的问题。本临床报告介绍了使用 CAD/CAM 辅助设计制作带有颈圈的氧化锆内冠，以获得与全瓷蜡型制作并修形后的内冠相同的支持效果。
