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标准与过期复合树脂在树脂-牙本质界面的粘结强度和微渗漏的比较评估：一项研究。

Comparative Evaluation of Bond Strength and Microleakage of Standard and Expired Composite at Resin-Dentin Interface: An Study.

作者信息

Talreja Nidhi, Singla Shilpy, Shashikiran N D

机构信息

Postgraduate Student, Department of Pedodontics and Preventive Dentistry, People's College of Dental Sciences and Research Centre, People's University, Bhopal, Madhya Pradesh, India.

Reader, Department of Pedodontics and Preventive Dentistry, People's College of Dental Sciences and Research Centre, People's University, Bhopal, Madhya Pradesh, India.

出版信息

Int J Clin Pediatr Dent. 2017 Jan-Mar;10(1):1-4. doi: 10.5005/jp-journals-10005-1396. Epub 2017 Feb 27.

DOI:10.5005/jp-journals-10005-1396
PMID:28377645
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5360793/
Abstract

BACKGROUND

Evaluation of bond strength and microleakage caused by polymerization shrinkage provides a screening mechanism and an indication of the potential for the clinical success of composite restorations.

AIM

The aim of this study was to determine the effect on shear bond strength and microleakage of standard and expired composites.

MATERIALS AND METHODS

Selected specimens were etched using 37% phosphoric acid for 15 seconds and were randomly divided into four groups. Group I: Standard composite and bonding agent; group II: Expired composite and bonding agents; group III: Standard composite and expired bonding agent; and group IV: Expired composite and standard bonding agent. Specimens were further subdivided into two subgroups. In subgroup A, specimens were sheared with a universal testing machine, and the results were calculated in MPa; in subgroup B, specimens was sectioned longitudinally and analyzed for leakage (dye penetration) using a stereomicroscope.

RESULTS

The results of the present study showed that acceptable values for bond strength and microleakage were obtained even if one of the components of the dental resin composite is expired.

CONCLUSION

In Indian scenario, the expired composite material may provide some assistance in compromised clinical situations. It can be used as an interim restoration and compensate for the high material cost.

HOW TO CITE THIS ARTICLE

Talreja N, Singla S, Shashikiran ND. Comparative Evaluation of Bond Strength and Microleakage of Standard and Expired Composite at Resin-Dentin Interface: An Study. Int J Clin Pediatr Dent 2017;10(1):1-4.

摘要

背景

评估聚合收缩引起的粘结强度和微渗漏可为复合树脂修复体临床成功的可能性提供筛选机制和指示。

目的

本研究的目的是确定标准和过期复合树脂对剪切粘结强度和微渗漏的影响。

材料与方法

选用的标本用37%磷酸蚀刻15秒，并随机分为四组。第一组：标准复合树脂和粘结剂；第二组：过期复合树脂和粘结剂；第三组：标准复合树脂和过期粘结剂；第四组：过期复合树脂和标准粘结剂。标本进一步细分为两个亚组。在亚组A中，用万能试验机对标本进行剪切，结果以MPa计算；在亚组B中，将标本纵向切片，并用体视显微镜分析渗漏情况（染料渗透）。

结果

本研究结果表明，即使牙科树脂复合材料的一种成分过期，也能获得可接受的粘结强度和微渗漏值。

结论

在印度的情况下，过期的复合材料在临床情况不佳时可能会提供一些帮助。它可作为临时修复体使用，并弥补材料成本过高的问题。

如何引用本文

Talreja N, Singla S, Shashikiran ND. 树脂-牙本质界面标准和过期复合材料粘结强度和微渗漏的比较评价：一项研究。《国际临床儿科牙科学杂志》2017；10(1):1-4。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd3f/5360793/2a0010fb1f68/ijcpd-10-001-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd3f/5360793/9d8f48974bed/ijcpd-10-001-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd3f/5360793/63d155cfef8e/ijcpd-10-001-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd3f/5360793/2a0010fb1f68/ijcpd-10-001-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd3f/5360793/9d8f48974bed/ijcpd-10-001-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd3f/5360793/63d155cfef8e/ijcpd-10-001-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd3f/5360793/2a0010fb1f68/ijcpd-10-001-g003.jpg

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Release and toxicity of dental resin composite.牙科树脂复合材料的释放与毒性
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Comparative evaluation of microleakage in class II cavities restored with Ceram X and Filtek P-90: An in vitro study.Ceram X和Filtek P-90修复II类洞微渗漏的比较评价：一项体外研究。
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