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使用口腔内扫描仪进行后空间扫描的真实性和深度差异:制剂尺寸的影响:一个体外研究

Mostafa Shahin Zaki¹, Cherif Adel Mohsen², Mostafa Elhusseiny Mohamed²

¹Fixed Prosthodontics Department, Faculty of Dentistry, Minia University, Misr Aswan Agricultural Rd. ،ARD SHALABY ،ELMinia, Minia, Egypt. mostafa.shaheen54pg@dent.s-mu.edu.eg.

BMC oral health

|May 10, 2025

概括

在口腔内扫描后的空间是可行的,但更深的准备 (>6mm) 降低精度. 减少后空间深度可以提高牙科修复的真实性和深度准确性.

科学领域:

牙科材料科学牙科材料科学
数字牙科数字牙科
牙修复牙修复牙修复牙修复牙修复

背景情况:

内口扫描 (IOS) 提供了一个数字替代品,用于传统的印记后空间.
由于与后空间维度相关的局限性,IOS的有效性受到挑战.

研究的目的:

为了评估扫描的邮件空格的真实性和深度差异百分比.
评估不同后台空间尺寸 (宽度和深度) 对IOS精度的影响.

主要方法:

经过内治疗的20只大犬被准备成四个尺寸 (宽度:1.5mm/1.7mm;深度:6mm/10mm).
样品使用Panda P2口内扫描仪 (IOS) 进行扫描.
扫描数据 (STL文件) 与传统印象 (InEos X5) 进行了比较,使用逆向工程软件进行真实性和深度差异分析.

主要成果:

准备深度显著降低了真实性,而宽度没有显著的影响.
增加制备宽度降低了深度差异百分比;增加深度显著增加了它.
在根平均平方 (RMS) 偏差和深度差异百分比之间发现了强烈的正相关性 (r=0.898).

结论:

将后空间深度减少到6mm提高了真实性,并保持了临床可接受性.
将后空间深度增加到10mm,导致无法接受的深度差异.
降低后台空间宽度也增加了差异,突出显示了IOS精度方面的维度控制的重要性.

关键词:

牙印记技术是一种牙科印记技术.聚乙烯氧化 (PVC) 是一种聚乙烯氧化.后台和核心技术技术.

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