关键词: 数字化导板, 三维打印, 计算机辅助设计与制造, 流体树脂, 关闭前牙间隙

Abstract:

Anterior diastema and tooth defects are common clinical issues in restorative dentistry and are often restored by veneers or crowns based on the results of digital smile design and wax-up. Traditional direct resin restoration for closing a diastema is relatively minimally invasive but is time consuming and laborious, and shape control depends on experience. Digital technology can be used to design and transfer the shape of aesthetic restoration more accurately and quickly; thus, it could close anterior diastema and restore defects easily. According to the workflow, this technical process integrates virtual design and practical wax-up, transfers the designed restoration shape by templates, and injects through the preset channel after the template is in place. This clinical technique simplifies the clinical operation and saves clinical time, which can effectively improve the predictability and accuracy of the restoration and reduce technical sensitivity. This digital workflow provides a new technology for closing diastema quickly and effectively.

Key words: digital template, three-dimensional printing, computer-aided design/computer-aided manufacturing, flowable resin composite, anterior teeth of space closure