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. 2013 Sep;7(Suppl 1):S060-S065.
doi: 10.4103/1305-7456.119075.

Effect of operator variability on microleakage with different adhesive systems

Emel Karaman  1 , A Ruya Yazici  2 , Burak Aksoy  3 , Erdem Karabulut  4 , Gul Ozgunaltay  2 , Berrin Dayangac  2
Affiliations

Effect of operator variability on microleakage with different adhesive systems

Emel Karaman et al. Eur J Dent. 2013 Sep.

Abstract

Objective: The objective of this study was to evaluate the effect of operator variability on microleakage with different adhesive systems.

Materials and methods: A total of 180 standardized Class V cavities were prepared on facial and lingual of 90 extracted human premolar teeth and randomly assigned to five groups according to the adhesive systems used (n = 36): Prime and Bond NT (PB), Single Bond (SB), Futura Bond NR, Xeno III (XE) and Adper Prompt-L-Pop (LP). The adhesive groups were then further subdivided into three operator groups according to level of clinical experience (n = 12): An undergraduate student, a research assistant and a faculty member. All cavities were restored with same composite resin. The restored teeth were thermocycled (500 cycles, 5-55°C) then immersed in 0.5% basic fuchsin and measured for leakage under a stereomicroscope. Statistical analyses were performed with the Kruskal-Wallis and Mann-Whitney U tests.

Results: Significant inter-operator variation was found in the enamel margins in the XE group with significantly higher microleakage when used by the undergraduate student (P < 0.05). Although no significant differences in microleakage were found between adhesive systems for the research assistant and faculty member (P > 0.05), significant differences were observed between PB and LP, PB and XE, SB and LP and SB and XE in the enamel margins for the undergraduate student (P < 0.05).

Conclusion: Microleakage of adhesive systems is more dependent on interactions between the operator and adhesive material than on the choice of adhesive material.

Keywords: Dentin bonding; microleakage; operator variability.

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Conflict of interest statement

Conflict of Interest: None declared

Figures

Figure 1
Figure 1
Flowchart of the study
Figure 2
Figure 2
Schematic illustration of dye penetration scores
See this image and copyright information in PMC

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