热塑树脂（IMPRESS）、弹性体和复合印模材料的尺寸稳定性、抗压强度和细节再现评估：一项研究。

Evaluation of dimensional stability, compressive resistance, and detail reproduction of thermoplastic resin (IMPRESS), elastomeric and composite bite registration material: An study.

机构信息

Department of Prosthodontics, Indira Gandhi Institute of Dental Sciences, SBV University, Puducherry, India.

Sr. Statistician and Research Consultant, Sri Balaji Vidyapeeth University, NODAL Officer, AISHE, Puducherry, India.

出版信息

J Indian Prosthodont Soc. 2023 Jan-Mar;23(1):65-70. doi: 10.4103/jips.jips_146_22.

DOI:10.4103/jips.jips_146_22

PMID:36588377

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10088453/

Abstract

AIM

The fabrication of an accurate prosthesis depends mainly on precise recording of the maxillo-mandibular relationship of the patient and transferring it to the articulator. BDIMPRESS is a new thermoplastic material that has been proposed as a potential material to be used as an inter-occlusal registration, but there has been no literature evidence regarding its application as a bite registration. The main purpose of this study is to evaluate and compare the dimensional stability, detail reproduction, and compressive resistance of new interocclusal recording material with other two commonly used materials.

SETTINGS AND DESIGN

In Vitro Comparative study.

MATERIALS AND METHODS

The study was conducted according to ADA Specification standards of testing for dimensional stability, detail reproduction and compressive resistance. Specimens were prepared for three different materials (Thermoplastic resin, Polyvinyl siloxane, and Bis- acrylic) with 12 samples each.

STATISTICAL ANALYSIS USED

One way ANOVA was done for statistical analysis.

RESULTS

Polyvinyl siloxane material was dimensionally stable (mean at 1 hr: 24.928 mm; 24 hrs: 24.919 mm & 48 hrs: 24.912 mm) followed by Bis- acrylic material (mean at 1 hr: 24.851 mm; 24 hrs: 24.825 mm & 48 hrs: 24.815 mm). On one way ANOVA, strong significance was observed between groups (P = 0.00). Thermoplastic resin showed higher amount of detail reproduction with 10 (out of 12 samples) samples showing satisfactory results. While bis- acrylic material showed the least compressive resistance (Strain %: 0.484%; Displacement- 0.0990mm). One-way ANOVA showed presence of significance between the groups (P = 0.024).

CONCLUSION

Polyvinyl siloxane showed superior dimensional stability, thermoplastic resin showed better detail reproduction and bis- acrylic showed high resistance to compression over other materials.

摘要

目的

准确的义齿制作主要依赖于对患者的上下颌关系的精确记录，并将其转移到架上。BDIMPRESS 是一种新型热塑性材料，已被提议作为一种潜在的材料用于咬合记录，但没有文献证据表明其可作为咬合记录材料。本研究的主要目的是评估和比较新型咬合记录材料与其他两种常用材料的尺寸稳定性、细节再现和抗压强度。

设置和设计

体外比较研究。

材料和方法

根据 ADA 规范标准，对三种不同材料（热塑性树脂、聚硅氧烷和双丙烯酸酯）的尺寸稳定性、细节再现和抗压强度进行测试。每种材料制备 12 个样本。

统计学分析方法

采用单因素方差分析进行统计分析。

结果

聚硅氧烷材料具有良好的尺寸稳定性（1 小时：24.928mm；24 小时：24.919mm；48 小时：24.912mm），其次是双丙烯酸酯材料（1 小时：24.851mm；24 小时：24.825mm；48 小时：24.815mm）。单因素方差分析显示，各组间差异有统计学意义（P=0.00）。热塑性树脂的细节再现能力较强，12 个样本中有 10 个样本显示出满意的结果。而双丙烯酸酯材料的抗压强度最低（应变%：0.484%；位移-0.0990mm）。单因素方差分析显示组间存在显著性差异（P=0.024）。