Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (38): 6161-6166.doi: 10.3969/j.issn.2095-4344.2015.38.017

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Color stability of carious incipient lesions in the enamel treated with resin infiltration 

Li Xin1, 2, Gao Ping1, Dai Xiao-hua2   

  1. 1School of Stomatology, Tianjin Medical University, Tianjin 300070, China; 
    2Tianjin Stomatological Hospital, Tianjin 300041, China)
  • Contact: Gao Ping, Professor, School of Stomatology, Tianjin Medical University, Tianjin 300070, China
  • About author:Li Xin, Studying for master’s degree, School of Stomatology, Tianjin Medical University, Tianjin 300070, China; Tianjin Stomatological Hospital, Tianjin 300041, China

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Abstract:

BACKGROUND: The resin infiltration technique for masking white spot lesions has obtained a result superior to the conventional remineralization. Up to now, few studies have evaluated the color of carious incipient lesions treated with the resin infiltration.
OBJECTIVE: To assess the color change of caries incipient lesions in the enamel treated with resin infiltration.
METHODS: Forty-eight extracted teeth were exposed to demineralizing solution for 4 weeks to establish artificial caries models. Then artificial caries models were treated with resin infiltration and randomized into four groups: these specimens were immersed in red wine, coffee, tea and artificial saliva for 2 and 4 weeks, respectively. The base line color was evaluated by spectrophotometer. The variation in color (ΔE) was analyzed by one-way analysis of variance and Tukey’s tests.
RESULTS AND CONCLUSION: All specimens underwent color and lightness changes, irrespective of immersion media. After 2 weeks of immersion, ΔE values were ranked as follows: red wine > coffee > tea > artificial saliva, and there were significant differences between four groups (P < 0.05). After 4 weeks of immersion, ΔE values were ranked as follows: red wine ≈ coffee > tea > artificial saliva, and there were significant differences between four groups (P < 0.05) but not between the red wine and coffee groups (P > 0.05). Significant changes in the color were found in the red wine and coffee groups at different time after immersion (P < 0.05). Immersed in red wine, coffee and tea, the ?E value was > 3.7, which is not acceptable in clinic. These findings indicate that the color stability of carious incipient lesions located in the enamel treated with resin infiltration is associated with the soak solution and soak time. In addition, immersion in red wine and coffee results in significantly increased color alteration (ΔE) compared with the artificial saliva.

中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

Key words: Dental Caries, Coffee

CLC Number: