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Basic Study | Publishing Language: Chinese | Open Access

The influence of the air abrasion on the resin filling microtensile bond strength of deciduous tooth

Zhi-qi YAN, Mei YE( ), Xue-min YAN
Jiangning Maternal and Child Health Hospital, Nanjing 211100, China
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Abstract

Objective

To investigate the influence of the air abrasion on the resin filling microtensile bond strength of deciduous tooth.

Methods

24 primary molars were randomly divided into 2 groups. Crown enamel was removed to expose dentin. Superficial occlusal dentin were prepared by air abrasion or high-speed dental bur. Two samples were selected from each group. One of them was directly observed by scanning electron microscope (SEM) and the other was observed by SEM after etching. The rest of samples were restored with the composite resin. Microtensile test was used to examine the microtensile bond strength.

Results

The microtensile bond strength of air abrasion group was (24. 470 ±3. 194) Mpa, which was statistically higher than that of high-speed dental bur group (22. 294 ± 2. 268) Mpa (P＜0. 05).The tooth prepared by air abrasion with etching showed the characteristic of "honeycomb" pattern in SEM micrograghs, while the tooth in the control group showed a shallow shape.

Conclusion

Air abrasion preparation can improve the microtensile bond strength in dentin restorations with the composite resin.

Keywords

Air abrasionMicrotensile bond strengthPrimary molarSEMComposite resin restoration
CLC number: R781.05 Document code: A Article ID: 2096-1456(2016)05-280-04

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Journal of Prevention and Treatment for Stomatological Diseases
Volume 24 Issue 5,
May 2016
Pages 280-282
DOI: 10.12016/j.issn.2096-1456.2016.05.004

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Cite this article:
YAN Z-q, YE M, YAN X-m. The influence of the air abrasion on the resin filling microtensile bond strength of deciduous tooth. Journal of Prevention and Treatment for Stomatological Diseases, 2016, 24(5): 280-282. https://doi.org/10.12016/j.issn.2096-1456.2016.05.004

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Received: 30 October 2015
Revised: 20 December 2015
Published: 20 May 2016
© 2016 by Editorial Department of Journal of Prevention and Treatment for Stomatological Diseases

This article is licensed under a Creative Commons Attribution 4.0 International License.