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一种新配方的具有改善机械性能的乙烯基聚硅氧烷印模材料。

A Newly Formulated Vinyl Polysiloxane Impression Material with Improved Mechanical Properties.

作者信息

Ling Long, Lai Theresa, Malyala Raj

机构信息

R&D, Glidewell Dental, Irvine, CA 92612, USA.

出版信息

J Int Soc Prev Community Dent. 2024 Jun 27;14(3):252-259. doi: 10.4103/jispcd.jispcd_165_23. eCollection 2024 May-Jun.

DOI:10.4103/jispcd.jispcd_165_23
PMID:39055300
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11268533/
Abstract

AIM

To evaluate the mechanical properties of a newly formulated vinyl polysiloxane (VPS) impression material.

MATERIALS AND METHODS

Experimental, Capture (S&C Polymer), Express, Imprint 3 and Imprint 4 (3M ESPE), Start VPS (Danville), Honigum (DMG), Virtual (Ivoclar Vivadent), Elite HD+ (Zhermack) were evaluated for tear strength, tensile strength, and elongation at break. Un-nicked specimens with a 90° angle on one side (type C) for tear strength were prepared and tested according to ASTM-D624. Dumbbell-shaped specimens (type 1) for tensile strength and elongation at break were prepared and tested according to ISO 37. All tests were carried out at 500 mm/min on a Shimadzu (AGS-X-10 KN-table top) tester. A one-way analysis of variance (ANOVA) was used to analyze the data.

RESULTS

Experimental material showed significantly higher or higher tear strength and elongation at break compared to other impression materials for both light body (LB) and heavy body (HB). For tensile strength, Experimental is similar to most impression materials; however, significantly lower than Imprint 3 and Start VPS for LB. This parameter for HB is higher or significantly higher than other impression materials except Start VPS. Tear strength and tensile strength were not correlated for LB but have a weak or moderate correlation for HB. Elongation at break is inversely proportional to tensile strength moderately for LB; however, there is no or very weak relation for HB.

CONCLUSIONS

Experimental VPS impression material demonstrated a significantly higher tear strength and adequate tensile strength with higher elongation compared to other commercially available VPS impression materials. Adequate mechanical properties can provide accurate impressions for successful clinical fabrication of restorations. Experimental VPS impression material is suitable for use in dental impressions for fabrication of restorations.

摘要

目的

评估一种新配制的乙烯基聚硅氧烷（VPS）印模材料的力学性能。

材料与方法

对实验性材料Capture（S&C Polymer）、Express、Imprint 3和Imprint 4（3M ESPE）、Start VPS（丹维尔）、Honigum（DMG）、Virtual（义获嘉伟瓦登特）、Elite HD+（哲马科）进行撕裂强度、拉伸强度和断裂伸长率评估。制备一侧带有90°角的无切口试样（C型）用于撕裂强度测试，并根据ASTM-D624进行测试。制备哑铃形试样（1型）用于拉伸强度和断裂伸长率测试，并根据ISO 37进行测试。所有测试均在岛津（AGS-X-10 KN台式）试验机上以500 mm/min的速度进行。采用单因素方差分析（ANOVA）对数据进行分析。

结果

与其他印模材料相比，实验性材料在轻质体（LB）和重质体（HB）状态下均表现出显著更高或更高的撕裂强度和断裂伸长率。对于拉伸强度，实验性材料与大多数印模材料相似；然而，在LB状态下显著低于Imprint 3和Start VPS。HB状态下该参数高于或显著高于除Start VPS外的其他印模材料。LB状态下撕裂强度和拉伸强度不相关，但HB状态下具有弱或中度相关性。LB状态下断裂伸长率与拉伸强度呈适度反比关系；然而，HB状态下不存在或关系非常弱。

结论

与其他市售VPS印模材料相比，实验性VPS印模材料表现出显著更高的撕裂强度、足够的拉伸强度以及更高的伸长率。足够的力学性能可为修复体的成功临床制作提供精确印模。实验性VPS印模材料适用于制作修复体的牙科印模。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/ac4017a79921/JISPCD-14-252-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/5a63ee5629f0/JISPCD-14-252-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/618468daf2e6/JISPCD-14-252-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/25e4325b80d3/JISPCD-14-252-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/9c8a383a79e8/JISPCD-14-252-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/eb75169af595/JISPCD-14-252-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/5905d92ce7ae/JISPCD-14-252-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/c25becb4e430/JISPCD-14-252-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/8087475ada79/JISPCD-14-252-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/ac4017a79921/JISPCD-14-252-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/5a63ee5629f0/JISPCD-14-252-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/618468daf2e6/JISPCD-14-252-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/25e4325b80d3/JISPCD-14-252-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/9c8a383a79e8/JISPCD-14-252-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/eb75169af595/JISPCD-14-252-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/5905d92ce7ae/JISPCD-14-252-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/c25becb4e430/JISPCD-14-252-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/8087475ada79/JISPCD-14-252-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/460b/11268533/ac4017a79921/JISPCD-14-252-g009.jpg

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