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Research Article Color and hardness changes in artificial white spot lesions after resin infiltration
Ji-Hoon Kim1, Ho-Hyun Son, DDS, PhD2, Juhea Chang, DDS, MSD, PhD3
2012;37(2):-95.
DOI: https://doi.org/10.5395/rde.2012.37.2.90
Published online: May 18, 2012

1Department of Dentistry, Seoul National University School of Dentistry, Seoul, Korea.

2Department of Conservative Dentistry, Seoul National University School of Dentistry, Seoul, Korea.

3Clinic for Persons with Disabilities, Seoul National University Dental Hospital, Seoul, Korea.

Correspondence to Juhea Chang, DDS, MSD, PhD. Clinical assistant professor, Clinic for Persons with Disabilities, Seoul National University Dental Hospital, 101 Daehag-ro, Jongro-gu, Seoul, Korea. TEL, +82-2-2072-3831; FAX, +82-2-2072-2854; juhchang@snu.ac.kr
• Received: December 30, 2011   • Revised: February 24, 2012   • Accepted: February 24, 2012

©Copyights 2012. The Korean Academy of Conservative Dentistry.

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  • Objectives
    The purpose of this study was to determine the effect of resin infiltration technique on color and surface hardness of white spot lesion (WSL) with various degrees of demineralization.
  • Materials and Methods
    Ten human upper premolars were cut and divided into quarters with a 3 × 4 mm window on the enamel surface. Each specimens were separated into four groups (n = 10) and immersed in demineralization solution to create WSL: control, no treatment (baseline); 12 h, 12 hr demineralization; 24 h, 24 hr demineralization; 48 h, 48 hr demineralization. Resin infiltration was performed to the specimens using Icon (DMG). CIEL*a*b* color parameters of the enamel-dentin complex were determined using a spectroradiometer at baseline, after caries formation and after resin infiltration. Surface hardness was measured by Vickers Micro Hardness Tester (Shimadzu, HMV-2). The differences in color and hardness among the groups were analyzed with ANOVA followed by Tukey test.
  • Results
    Resin infiltration induced color changes and increased the hardness of demineralized enamel. After resin infiltration, there was no difference in color change (ΔE*) or microhardness among the groups (p < 0.05).
  • Conclusion
    There was no difference in the effect of resin infiltration on color and hardness among groups with different extents of demineralization.
  • Keywords: Color measurement; Microhardness; Resin infiltration; White spot lesion

No potential conflict of interest relevant to this article was reported.

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Figure 1
(a) Mean values of CIE L* for three groups (12 h, 24 h, and 48 h demineralization time) measured at baseline, after careis formation, and after resin infiltration; (b) Mean values of CIE a* for three groups; (c) Mean values of CIE b* for three groups; (d) Mean values of color change (CIE ΔE*) after caries formation (BL-CA) and after resin infiltration (BL-RI) for three groups.
rde-37-90-g001.jpg
Table 1
The difference in the mean values (SD) of CIE L*, a*, b*, and ΔE* among the control and the experimental groups after caries formation for three different demineralization times and corresponding resin infiltration

Different superscript letters denote the values that are significantly different from one another in each column (p < 0.05).

rde-37-90-i001.jpg
Table 2
The mean values (SD) of Vickers hardness after caries formation for three different demineralization times and corresponding resin infiltration

Different superscript letters denote the values that are significantly different from one another in each column (p < 0.05).

rde-37-90-i002.jpg

Tables & Figures

REFERENCES

    Citations

    Citations to this article as recorded by  
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      ArantaAvinash Chindane, AnilT Patil, B Sandhyarani
      Dental Research Journal.2022; 19(1): 52.     CrossRef
    • IMMEDIATE RESULT OF ICON INFILTRATION IN WHITE SPOT LESIONS CAUSED BY FLUOROSIS: A CASE REPORT
      Al-Sadi Abdulaziz Nasser Zain, P.M. Skrypnykov, V.I. Shynkevych, O.A. Pysarenko
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    • Effect of Casein Phosphopeptide–amorphous Calcium Phosphate and Calcium Sodium Phosphosilicate on Artificial Carious Lesions: Anin vitroStudy
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      International Journal of Clinical Pediatric Dentistry.2017; 10(3): 261.     CrossRef
    • Effect of Resin Infiltration on Artificial Caries: Anin vitroEvaluation of Resin Penetration and Microhardness
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      Color and hardness changes in artificial white spot lesions after resin infiltration
      Restor Dent Endod. 2012;37(2):90-95.   Published online May 18, 2012
      DOI: https://doi.org/10.5395/rde.2012.37.2.90
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    Color and hardness changes in artificial white spot lesions after resin infiltration
    Image
    Figure 1 (a) Mean values of CIE L* for three groups (12 h, 24 h, and 48 h demineralization time) measured at baseline, after careis formation, and after resin infiltration; (b) Mean values of CIE a* for three groups; (c) Mean values of CIE b* for three groups; (d) Mean values of color change (CIE ΔE*) after caries formation (BL-CA) and after resin infiltration (BL-RI) for three groups.

    Figure 1

    Color and hardness changes in artificial white spot lesions after resin infiltration

    The difference in the mean values (SD) of CIE L*, a*, b*, and ΔE* among the control and the experimental groups after caries formation for three different demineralization times and corresponding resin infiltration

    Different superscript letters denote the values that are significantly different from one another in each column (p < 0.05).

    The mean values (SD) of Vickers hardness after caries formation for three different demineralization times and corresponding resin infiltration

    Different superscript letters denote the values that are significantly different from one another in each column (p < 0.05).
    Table 1 The difference in the mean values (SD) of CIE L*, a*, b*, and ΔE* among the control and the experimental groups after caries formation for three different demineralization times and corresponding resin infiltration

    Different superscript letters denote the values that are significantly different from one another in each column (p < 0.05).

    Table 2 The mean values (SD) of Vickers hardness after caries formation for three different demineralization times and corresponding resin infiltration

    Different superscript letters denote the values that are significantly different from one another in each column (p < 0.05).

    Table 1

    Table 2

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