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使用模具润滑剂对蜡型边缘适合性的影响。

Effect of the Use of Die Lubricant on the Marginal Fit of Wax Patterns.

作者信息

Wagh Ajinkya, Gandhewar Mahesh, Pawar Pankaj, Chavan Ashada, Kharwade Snehal, Mendhe Anjali, Singh Devina

机构信息

Reader, Department of Prosthodontics, S.M.B.T. Institute of Dental Sciences and Research, Igatpuri, Ghoti Nashik, Maharashtra, India.

Professor and Head of the Department of Prosthodontics, A.C.P.M. Dental College Dhule, Maharashtra, India.

出版信息

J Pharm Bioallied Sci. 2021 Nov;13(Suppl 2):S1115-S1118. doi: 10.4103/jpbs.jpbs_173_21. Epub 2021 Nov 10.

DOI:10.4103/jpbs.jpbs_173_21
PMID:35017941
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8686933/
Abstract

UNLABELLED

The aim of this study was to evaluate the effect of die lubricant on the fit of wax patterns. An ivorine tooth was prepared to receive full-coverage metal-ceramic restoration with 360° shoulder finish line. The tooth was duplicated 40 times using additional silicone. The impression was poured with Type IV dental stone. These 40 dies were divided into 2 groups 20 each. Group A: The patterns were fabricated with the use of die lubricant. Group B: The patterns were fabricated without the use of die lubricant. Later, these patterns were sequentially checked for the marginal fit on the stereomicroscope. The readings from the stereomicroscope were tabulated; independent Student's -test was used to compare the marginal fit between Group A and Group B. The mean gap on all four tooth surfaces in Group A (with use of die lubricant) was more compared to Group B (without use of die lubricant).

CONCLUSION

Die lubricant definitely has their effect on fit of the wax pattern which later might be duplicated in the casting.

摘要

未标注

本研究的目的是评估铸模润滑剂对蜡型适配性的影响。制备一颗象牙质牙齿，以接受带有360°肩台边缘线的全冠金属烤瓷修复体。使用额外的硅橡胶对该牙齿进行40次复制。用IV型牙科石膏灌注印模。将这40个铸模分为两组，每组20个。A组：使用铸模润滑剂制作蜡型。B组：不使用铸模润滑剂制作蜡型。之后，在体视显微镜下依次检查这些蜡型的边缘适配性。将体视显微镜的读数制成表格；使用独立样本t检验比较A组和B组之间的边缘适配性。与B组（不使用铸模润滑剂）相比，A组（使用铸模润滑剂）在所有四个牙面上的平均间隙更大。

结论

铸模润滑剂肯定会对蜡型的适配性产生影响，而蜡型随后可能会在铸造过程中被复制。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e057/8686933/ecf7be20e145/JPBS-13-1115-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e057/8686933/e06278726340/JPBS-13-1115-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e057/8686933/9ba0e05e6ac2/JPBS-13-1115-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e057/8686933/d8df00a791eb/JPBS-13-1115-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e057/8686933/ecf7be20e145/JPBS-13-1115-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e057/8686933/e06278726340/JPBS-13-1115-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e057/8686933/9ba0e05e6ac2/JPBS-13-1115-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e057/8686933/d8df00a791eb/JPBS-13-1115-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e057/8686933/ecf7be20e145/JPBS-13-1115-g004.jpg

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