EVALUATING THE DISCOLORATION EFFECT OF TEA ON KALORE AND GRADIA COMPOSITES

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NASOOHI NEGIN; KHORGAMI KHORSHID; TASOJI ZAHRA; ARIAN NAZANI

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Journal: Journal of Research in Dental Sciences Year:2014 | Volume:11 | Issue:3 (41) Page(s): 169-175

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Title

EVALUATING THE DISCOLORATION EFFECT OF TEA ON KALORE AND GRADIA COMPOSITES

Author(s)

NASOOHI NEGIN | KHORGAMI KHORSHID | TASOJI ZAHRA | ARIAN NAZANI | Issue Writer Certificate

Keywords

COMPOSITE RESINSQ2

GRADIAQ3

AESTHETICSQ2

DENTALQ2

NANOCOMPOSITESQ2

Abstract

Background and Aim: Discoloration of composite restorations over time is among common factors causing their replacement, which weakens the tooth structure and causes pulpal injury. Since tea is a common drink among Iranians, the current study aimed to evaluate the discoloration effect of tea on Kalore and GRADIA COMPOSITE RESINS.Materials and Methods: This experimental study was performed on 20 disc-shaped specimens of two composites, Kalore and GRADIA. Ten specimens of each composite type with subgroups of 5 were stored in tea and distilled water for 72 Hours. Color measurements were obtained using Spectrophotometer (Minolta, Japan) before and after immersion in solutions. Final spectrophotometry was done after polishing. The results were analyzed using Kruskal-Wallis test.Results: The discoloration value of both composites increased significantly after being immersed in tea (P<0.001). Discoloration in Kalore was higher than GRADIA (P<0.014); and amount of discoloration was clinically unacceptable for both composites. (DE>3.3) After final polishing of the samples kept in tea, amount of discoloration decreased for both composites (P<0.001) and (P=0.002) respectively; this reduction was more prominent in Kalore (P=0.008). Nonetheless, discoloration value was yet clinically unacceptable.Conclusion: Immersing the composites in tea caused clinically unacceptable amount of discoloration in both GRADIA and Kalore and polishing had more corrective effect on Kalore.

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APA: Copy

NASOOHI, NEGIN, KHORGAMI, KHORSHID, TASOJI, ZAHRA, & ARIAN, NAZANI. (2014). EVALUATING THE DISCOLORATION EFFECT OF TEA ON KALORE AND GRADIA COMPOSITES. JOURNAL OF RESEARCH IN DENTAL SCIENCES, 11(3 (41)), 169-175. SID. https://sid.ir/paper/395177/en

Vancouver: Copy

NASOOHI NEGIN, KHORGAMI KHORSHID, TASOJI ZAHRA, ARIAN NAZANI. EVALUATING THE DISCOLORATION EFFECT OF TEA ON KALORE AND GRADIA COMPOSITES. JOURNAL OF RESEARCH IN DENTAL SCIENCES[Internet]. 2014;11(3 (41)):169-175. Available from: https://sid.ir/paper/395177/en

IEEE: Copy

NEGIN NASOOHI, KHORSHID KHORGAMI, ZAHRA TASOJI, and NAZANI ARIAN, “EVALUATING THE DISCOLORATION EFFECT OF TEA ON KALORE AND GRADIA COMPOSITES,” JOURNAL OF RESEARCH IN DENTAL SCIENCES, vol. 11, no. 3 (41), pp. 169–175, 2014, [Online]. Available: https://sid.ir/paper/395177/en

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