The evaluation of resin infiltration for masking labial enamel white spot lesions

Int J Paediatr Dent. 2011 Jul;21(4):241-8. doi: 10.1111/j.1365-263X.2011.01126.x. Epub 2011 Mar 14.


Objective: The aim of this study was to clinically assess the effectiveness of masking white spot enamel lesions using a resin infiltration technique that was recently developed to arrest incipient caries in a micro-invasive concept.

Methods: Twenty teeth with a Developmental Defect of Enamel (DDE) and 18 teeth with Post-orthodontic Decalcification (POD) were selected and treated with resin infiltration. Standardized photographs were taken before, immediately after, and 1 week after treatment and were analysed using image analysing software to calculate the ΔE values. The results were classified into three groups: completely masked, partially masked, and unchanged.

Results: Among the 20 teeth with DDE, five teeth (25%) were classified as completely masked, whereas seven (35%) and eight teeth (40%) were partially masked and unchanged, respectively. Among the 18 teeth with POD, 11 teeth (61%) were completely masked, six teeth (33%) were partially masked, and one tooth (6%) was unchanged. In some teeth, the result was more improved after 1 week than immediately after infiltration.

Conclusion: The masking effect was dramatic in some cases but not in others. The long-term colour stability of the result should be followed up through continuous clinical and scientific studies.

Publication types

  • Comparative Study

MeSH terms

  • Acid Etching, Dental / methods
  • Adolescent
  • Child
  • Color
  • Dental Caries / pathology
  • Dental Caries / therapy*
  • Dental Enamel / pathology*
  • Dental Enamel Hypoplasia / pathology
  • Dental Enamel Hypoplasia / therapy
  • Dental Materials / chemistry*
  • Dental Restoration, Permanent / methods*
  • Desiccation
  • Ethanol / chemistry
  • Follow-Up Studies
  • Humans
  • Hydrochloric Acid / chemistry
  • Image Processing, Computer-Assisted
  • Light-Curing of Dental Adhesives
  • Photography, Dental
  • Resins, Synthetic / chemistry*
  • Solvents / chemistry
  • Time Factors
  • Tooth Demineralization / pathology
  • Tooth Demineralization / therapy
  • Treatment Outcome


  • Dental Materials
  • Resins, Synthetic
  • Solvents
  • Ethanol
  • Hydrochloric Acid