Evaluation of Shear Bond Strength and Microleakage of Bulk-fill Resin Composites (Bulk-fill 복합레진의 상아질 전단결합강도 및 미세누출)

이한별; Hyunwoo Seo (서현우); LEE JU HYUN (이주현); Howon Park (박호원)

doi:10.5933/JKAPD.2015.42.4.281

Evaluation of Shear Bond Strength and Microleakage of Bulk-fill Resin Composites

Journal of the Korean academy of pediatric dentistry
Abbr : J Korean Acad Pediatr Dent
2015, 42(4), pp.281~290
DOI : 10.5933/JKAPD.2015.42.4.281
Publisher : The Korean Academy Of Pediatric Dentistry
Research Area : Medicine and Pharmacy > Dentistry

이한별 ¹, Hyunwoo Seo ², LEE JU HYUN ², Howon Park ²

¹강릉원주대학교 치과대학 소아치과학교실 및 구강과학연구소
²강릉원주대학교

Accredited

ABSTRACT

The aim of this study was to evaluate shear bond strength (SBS) of bulk-fill resin composites (RCs) to dentin and their micro-leakage. One high-viscosity bulk-fill RC and 2 low-viscosity bulk-fill RCs were compared with 1 conventional RC. 7thgenerationbondingagentswereused. In order to evaluate SBS values, 40 permanent molars were selected and divided into 4 groups. The bulk-fill RCs were applied in 4 mm thickness, whereas the conventional RC was applied in 2 mm thickness. In order to evaluate micro-leakage, class I cavities (5 × 2 × 4 mm) were prepared in 32 permanent molars. The teeth were divided into 4 groups and restored with resin composites in an increment of 4 mm for the bulkfill RC and in 2 horizontal increments of 2 mm for the conventional RC. The mean SBS value of conventional RC showed no statistically significant difference when compared with those of low-viscosity bulk-fill RCs. However, the mean SBS value of high-viscosity bulk-fill RC was significantly lower than that of conventional RC (p < 0.05). There were no statistically significant differences in micro-leakage between the 4 groups. For SBS and micro-leakage, the use of low-viscosity bulk-fill RCs might help clinicians simplify the procedure.

KEYWORDS

Bulk-fill resin composites, Shear bond strength, Micro-leakage, 7thgenerationbondingagent

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Journal of the Korean academy of pediatric dentistry 2025 KCI Impact Factor : 0.43

Evaluation of Shear Bond Strength and Microleakage of Bulk-fill Resin Composites

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* References for papers published after 2025 are currently being built.

Journal of the Korean academy of pediatric dentistry 2025 KCI Impact Factor : 0.43

Evaluation of Shear Bond Strength and Microleakage of Bulk-fill Resin Composites

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KEYWORDS

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