Evaluation of the value of re-wetting prior to resin infiltration of post-orthodontic caries lesions.
J Dent
; 91: 103243, 2019 12.
Article
in En
| MEDLINE
| ID: mdl-31730787
ABSTRACT
OBJECTIVES:
Assessment of the influence of colour changes during the re-wetting process as a possible predictor for the final result after resin infiltration to mask post-orthodontic white spot lesions. MATERIALS ANDMETHODS:
Resin infiltration (ICON; DMG, Hamburg, Germany) was performed according to the manufacturer's recommendation with the exception of repeated, at maximum three etching procedures based on the subjective decision of the dentist during a so called re-wetting process using ethanol. The masking effect by ethanol as well as after resin infiltration was evaluated by digital images taken before, for nine seconds during re-wetting and one week after treatment using CIE L*a*b* colour space.RESULTS:
Twenty-nine patients (16 female) with a total of 221 lesions (ICDAS 2) were included (mean age 16 years). Mean time after debonding the orthodontic appliances was ten weeks. Colour changes during re-wetting, evaluated in the first ten patients (71 lesions) showed a significant correlation between the minimum ΔE observed during re-wetting and the final ΔE after resin infiltration (râ¯=â¯0.65, pâ¯<â¯0.001; Spearman correlation). The main drop in ΔE becomes visible after three seconds when performing the re-wetting process. Regarding the 221 lesions, resin infiltration significantly reduced the colour difference between sound and lesion areas from a baseline ΔE (25th/75th percentiles) of 10.9 (8.2/13.2) to a ΔE of 4 (2.1/5.8) after one week (pâ¯<â¯0.001). The number of etching procedures correlated significantly with baseline ΔE (pâ¯<â¯0.05).CONCLUSIONS:
The minimum ΔE observed during the re-wetting process seems to be a useful predictor for the final result of resin infiltration of post-orthodontic caries lesions. More prominent lesions with higher ΔE at baseline seem to require more erosion of the surface layer. In general, a significant and considerable clinical reduction of ΔE could be observed. CLINICALSIGNIFICANCE:
We corroborate that resin infiltration technique is a very useful method to mask caries lesions having developed during treatment with fixed orthodontic appliances. Colour changes while re-wetting the lesions with ethanol seem to be a valuable indicator for the number of required etching procedures.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Resins, Synthetic
/
Dental Caries
/
Dental Enamel
Type of study:
Evaluation_studies
/
Guideline
/
Prognostic_studies
Limits:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
Country/Region as subject:
Europa
Language:
En
Journal:
J Dent
Year:
2019
Document type:
Article
Affiliation country: