Department of Prosthodontics, University of Heidelberg, Heidelberg, Germany.
J Prosthet Dent. 2012 Feb;107(2):71-4. doi: 10.1016/S0022-3913(12)00012-1.
This clinical report describes the use of modern CAD/CAM technology combined with a conventional impression technique to treat a malformed tooth with ceramic veneer in a single appointment. A thin veneer (0.4 mm) made of lithium disilicate ceramic was used to correct the shape of the malformed tooth with a minimally invasive preparation using a chairside CAD/CAM system. Thus the treatment can be performed during one appointment. To facilitate the CAD/CAM process and fabrication of the veneer, a scanable model fabricated on a modified gypsum definitive cast was used. The malformed tooth was corrected on the cast by use of a composite resin and an impression was then made. This trimmed impression was used intraorally during the scanning process to facilitate fabrication of the veneer.
本临床报告描述了在一次就诊中使用现代 CAD/CAM 技术结合传统印模技术来治疗畸形牙的陶瓷贴面。使用一种由二硅酸锂陶瓷制成的薄贴面（0.4 毫米），通过椅旁 CAD/CAM 系统进行微创预备来矫正畸形牙的形状。因此，治疗可以在一次就诊中进行。为了便于 CAD/CAM 处理和贴面制作，使用了在改良石膏终模型上制作的可扫描模型。在模型上使用复合树脂来矫正畸形牙，然后进行印模。修整后的印模在扫描过程中被用于口腔内，以方便贴面的制作。
