Comparison of marginal microleakage between low and high flowable resins in class V cavity

Article information

Restor Dent Endod. 2009;34(6):477-483

Publication date (electronic) : 2009 November 30

doi : https://doi.org/10.5395/JKACD.2009.34.6.477

Sang-Bae Bae ¹, Young-Gon Cho ¹, Myeong-Seon Lee ²

¹Department of Conservative Dentistry, School of Dentistry, Chosun University, Korea.

²Department of Dental Hygiene, Seokang University, Korea.

Corresponding Author: Young-Gon Cho. Department of Conservative Dentistry, Chosin University, 421 Seosuk-dong, Dong-gu, Gwangju 501-825, Korea. Tel: 82-62-220-3840, Fax: 82-62-232-9064, ygcho@chosun.ac.kr

Received 2009 June 17; Revised 2009 September 11; Accepted 2009 October 18.

Abstract

The purpose of this study was to compare the microleakage of low and high viscosity flowable resins in class V cavities applied with 1-step adhesives.

Forty class V cavities were prepared on the cervices of buccal and lingual surfaces of extracted molar teeth and divided into four groups (n=8). Cavities were restored with AQ Bond Plus/Metafil Flo α, G-Bond/UniFil LoFlo Plus (Low flow groups), AQ Bond Plus/Metafil Flo and G-Bond/UniFil Flow (High flow group), respectively.

Specimens were immersed in a 2% methylene blue solution for 24 hours, and bisected longitudinally. They were observed microleakages at the enamel and dentinal margins.

In conclusion, the low viscosity flowable resins showed lower marginal microleakage than do the high viscosity flowable resins in class V cavities.

Keywords: Microleakage; Low and high viscosity flowable resin; Class V cavities; 1-step adhesives; Enamel margin; Dentinal margin

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Table 1

Materials and group classification

Table 2

Distribution of microleakage scores and mean rank at enamel margins

Different superscripts are statistically significant difference at p<0.05 (Mann-Whitney test).

Table 3

Distribution of microleakage scores and mean rank at dentinal margins

Different superscripts are statistically significant difference at p<0.05 (Mann-Whitney test).