EFFECT OF LIGHT DIRECTION ON THE MICROLEAKAGE OF MICRO FILLED AND HYBRID RESIN COMPOSITES

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DAVARI A.A.R.; DANESHKAZEMI A.R.; MOUSAVI NASAB SEYED MAJID; MOSHTAGH SAJEDEH

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Journal: Journal of Shahid Sadoughi University of Medical Sciences Year:2011 | Volume:18 | Issue:5 (74) Page(s): 421-427

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Title

EFFECT OF LIGHT DIRECTION ON THE MICROLEAKAGE OF MICRO FILLED AND HYBRID RESIN COMPOSITES

Author(s)

DAVARI A.A.R. | DANESHKAZEMI A.R. | MOUSAVI NASAB SEYED MAJID | MOSHTAGH SAJEDEH | Issue Writer Certificate

Keywords

DENTAL LEAKAGEQ3

COMPOSITE RESINSQ3

RADIOGRAPHY/DENTALQ3

Abstract

Introduction: One of the most important factors affecting the marginal seal of composite restorations is polymerization shrinkage. The aim of this study was to evaluate the micro leakage of two resin composites cured with two light directions. Methods: In this experimental study, forty similar class III preparations were prepared in 40 human anterior teeth. The teeth were randomly divided in two groups according to the resin composite used for filling the cavities (Microfilled composite: Heliomolar or hybrid composite: Spectrum). Etch group was further divided in two subgroups according to the light direction buccal and lingual. All the cavities were filled with the composites and cured for 40 seconds. The teeth were then thermocycled for 500 cycles between 5-55°c and covered with nail polish except for 1mm around cavity margins and immersed in 1% methylene blue for 12 hours. The teeth were sectioned and the dye penetration scores were recorded using stereo microscope. Data was analyzed using non parametric Mann Whitney test. Results: No significant difference was observed between the COMPOSITE RESINS (p>0.05) or the light directions used for curing the COMPOSITE RESINS (p>0.05). Conclusion: Directions of the light does not have any effect on the micro leakage of hybrid or micro filled composites in class III cavities.

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APA: Copy

DAVARI, A.A.R., DANESHKAZEMI, A.R., MOUSAVI NASAB, SEYED MAJID, & MOSHTAGH, SAJEDEH. (2011). EFFECT OF LIGHT DIRECTION ON THE MICROLEAKAGE OF MICRO FILLED AND HYBRID RESIN COMPOSITES. JOURNAL OF SHAHID SADOUGHI UNIVERSITY OF MEDICAL SCIENCES, 18(5 (74)), 421-427. SID. https://sid.ir/paper/36392/en

Vancouver: Copy

DAVARI A.A.R., DANESHKAZEMI A.R., MOUSAVI NASAB SEYED MAJID, MOSHTAGH SAJEDEH. EFFECT OF LIGHT DIRECTION ON THE MICROLEAKAGE OF MICRO FILLED AND HYBRID RESIN COMPOSITES. JOURNAL OF SHAHID SADOUGHI UNIVERSITY OF MEDICAL SCIENCES[Internet]. 2011;18(5 (74)):421-427. Available from: https://sid.ir/paper/36392/en

IEEE: Copy

A.A.R. DAVARI, A.R. DANESHKAZEMI, SEYED MAJID MOUSAVI NASAB, and SAJEDEH MOSHTAGH, “EFFECT OF LIGHT DIRECTION ON THE MICROLEAKAGE OF MICRO FILLED AND HYBRID RESIN COMPOSITES,” JOURNAL OF SHAHID SADOUGHI UNIVERSITY OF MEDICAL SCIENCES, vol. 18, no. 5 (74), pp. 421–427, 2011, [Online]. Available: https://sid.ir/paper/36392/en

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