Kumar Pradeep, Singh Saumyendra Vikram, Aggarwal Himanshi, Chand Pooran
Senior resident, Department of Prosthodontics, Faculty of Dental Sciences, King George's Medical University UP, Lucknow, Uttar Pradesh, India.
Associate Professor, Department of Prosthodontics, Faculty of Dental Sciences, King George's Medical University UP, Lucknow, Uttar Pradesh, India.
J Prosthet Dent. 2015 Feb;113(2):157-9. doi: 10.1016/j.prosdent.2014.09.006. Epub 2014 Oct 28.
Pattern formation is the most difficult and demanding step in the fabrication of a facial prosthesis. Traditionally, the pattern fabrication of an orbital prosthesis begins with the adaptation of softened base plate wax on the cast, over which the entire pattern is fabricated. However, owing to the inherent properties of wax, such as distortion and stress relaxation, incorporating discrepancies in the pattern adaptation is likely. This article describes a vacuum-formed polyvinyl chloride sheet to fabricate a durable, distortion-free base for pattern fabrication, thereby overcoming the drawbacks associated with a wax base.
形态塑造是面部假体制作中最困难且要求最高的步骤。传统上，眼眶假体的形态制作始于在模型上适配软化的基板蜡，然后在其上制作整个形态。然而，由于蜡的固有特性，如变形和应力松弛，形态适配中很可能会出现差异。本文介绍了一种真空成型的聚氯乙烯片材，用于制作形态制作的耐用、无变形基底，从而克服与蜡基底相关的缺点。
