EFFECT OF PLASMA-ARC BLEACHING ON MICROLEAKAGE OF CERVICAL COMPOSITE RESTORATIONS STORED IN WATER FOR DIFFERENT STORAGE TIMES

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KHOROUSHI M.; MANSOURI TAYEBEH; RABIEI GH.R.

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Title

EFFECT OF PLASMA-ARC BLEACHING ON MICROLEAKAGE OF CERVICAL COMPOSITE RESTORATIONS STORED IN WATER FOR DIFFERENT STORAGE TIMES

Author(s)

KHOROUSHI M. | MANSOURI TAYEBEH | RABIEI GH.R. | Issue Writer Certificate

Keywords

MICROLEAKAGEQ3

BLEACHINGQ2

COMPOSITE- RESINQ2

WATER STORAGEQ3

Abstract

Introduction: The aim of this in vitro study was to evaluate the effect of light - activated BLEACHING on new and aged class V composite - resin restorations.Methods and Materials: 72 freshly extracted premolars were prepared with class V cavities (4 × 2.5 × 1.5 mm) with extension to 1 mm apical to CEJ. Cavities were restored using Single bond and Z100 composite resin. The specimens randomly divided into 6 groups. The samples in groups 2-5 were bleached using in-office BLEACHING gel and plasma-arc BLEACHING unit immediately, 7, 30 and 90 days after restoration respectively. Groups 1 and 6 were control groups and did not received BLEACHING treatment, stored for 1 and 90 days in waters, then evaluated. At the end of each storage period, the samples sealed with nail varnish and immersed in 2% basic fushin, and MICROLEAKAGE was evaluated using 0-3 score scale. Data were analyzed using Kruskal-Wallis and Mann-Whitney tests at 0.95 level of significant.Results: No statistically significant differences between study groups were observed in enamel margins (p value = 0.244). MICROLEAKAGE was increased significantly in dentinal margin of group 2 (p value = 0.034).Conclusion: Performing plasma-arc BLEACHING immediately after restoration could increase MICROLEAKAGE of COMPOSITE- RESIN restorations in dentinal margins. Immediate light-activated BLEACHING of the composite-resin restorations might jeopardize marginal integrity of dentinal margins.

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APA: Copy

KHOROUSHI, M., MANSOURI, TAYEBEH, & RABIEI, GH.R.. (2008). EFFECT OF PLASMA-ARC BLEACHING ON MICROLEAKAGE OF CERVICAL COMPOSITE RESTORATIONS STORED IN WATER FOR DIFFERENT STORAGE TIMES. JOURNAL OF ISFAHAN DENTAL SCHOOL, 3(4), 178-183. SID. https://sid.ir/paper/126526/en

Vancouver: Copy

KHOROUSHI M., MANSOURI TAYEBEH, RABIEI GH.R.. EFFECT OF PLASMA-ARC BLEACHING ON MICROLEAKAGE OF CERVICAL COMPOSITE RESTORATIONS STORED IN WATER FOR DIFFERENT STORAGE TIMES. JOURNAL OF ISFAHAN DENTAL SCHOOL[Internet]. 2008;3(4):178-183. Available from: https://sid.ir/paper/126526/en

IEEE: Copy

M. KHOROUSHI, TAYEBEH MANSOURI, and GH.R. RABIEI, “EFFECT OF PLASMA-ARC BLEACHING ON MICROLEAKAGE OF CERVICAL COMPOSITE RESTORATIONS STORED IN WATER FOR DIFFERENT STORAGE TIMES,” JOURNAL OF ISFAHAN DENTAL SCHOOL, vol. 3, no. 4, pp. 178–183, 2008, [Online]. Available: https://sid.ir/paper/126526/en

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