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:: Volume 7, Issue 4 (Res Dent Sci 2011) ::
J Res Dent Sci 2011, 7(4): 18-22 Back to browse issues page
Effect of tea and coffee on color change of two types composite resins: Nanofilled and Micro hybrid
Negin Nasoohi Dr *, Maryam Hoorizad Dr, Nazanin Torabzade tari Dr
Assistant Prof, Department of operative dentistry, Islamic Azad University, dental Branch, Tehran,Iran , neginnasoohi@yahoo.com
Abstract:   (20739 Views)

  Nasoohi N 1 Hoorizad M1 Torabzadeh Tari N 2

  1- Assistant Prof, Department of operative dentistry, Islamic Azad University, dental Branch, Tehran,Iran

  2-Dentist

  Corresponding Author : Nasoohi N: Department, No 4, 10th Neyestan Ave, Pasdaran, Tehran

  Tel : 09125392175 Email: neginnasoohi@yahoo.com

 

  Background and Aim: Discoloration of dental composites is one of the major reasons of their change which can be influenced by internal and external factors. The aim of this study was to evaluate discoloration susceptibility of two Nanofilled and Micro hybrid composites by coffee and tea.

  Materials and Methods: This experimental study was carried out on 30 composite specimens of Point 4 and Premise. The specimens were divided in 6 groups (n=5) .After primary color measurement by spectrophotometer the specimens were stored in distilled water ,coffee and tea for one week and then the color was measured . Color changes (ΔE) were calculated. The data were analyzed by Two –way ANOVA,student T-test and Post Hoc Tukey test.

 

  Results: The color change in both medius was significant for both composite groups. The effect of coffee and tea on discoloration of two composites was significant (P<0.05) .There was no significant difference between the color change of the two composites. Also there was no significant

  Conclusion: Color changes of two composites point 4 and Premise by tea and coffee were clinically significant.

  Key words : Nanofilled composite, Micro hybrid composite, Point4, premise discoloration, tea, coffee

Keywords: Nanofilled composite, Micro hybrid composite, Point4, premise discoloration, tea, coffee
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Type of Study: original article | Subject: oral surgery
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Nasoohi N, hoorizad M, Torabzade tari N. Effect of tea and coffee on color change of two types composite resins: Nanofilled and Micro hybrid. J Res Dent Sci. 2011; 7 (4) :18-22
URL: http://jrds.ir/article-1-31-en.html


Volume 7, Issue 4 (Res Dent Sci 2011) Back to browse issues page
مجله تحقیق در علوم دندانپزشکی Res Dent Sci
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