Spectrophotometric analysis of coronal discoloration induced by white mineral trioxide aggregate and Biodentine: An study.

AIMS

The aim of this study was to evaluate the specific chromatic alterations in tooth crowns induced by two different endodontic restorative materials.

SETTINGS AND DESIGN

This study was conducted at the Department of Conservative Dentistry, KMCT Dental College, Kozhikode, Kerala.

SUBJECTS AND METHODS

Forty-five freshly extracted, fully developed, single-rooted teeth were prepared and randomly assigned to two experimental groups ( = 15 each) and one negative control group ( = 15). Group 1 consists of white mineral trioxide aggregate (WMTA), Biodentine formed Group 2, and controls formed Group 3. Double-beam ultraviolet spectrophotometer equipment was used to assess the coronal discoloration as determined by CIE *, *, and * and their corresponding total values.

RESULTS

At baseline, no significant difference was detected for CIE values between the groups. Group 1 showed a significant decrease in *, *, and * values over time. The color change with WMTA led to clinically perceptible crown discoloration after 6 weeks which exceeded the perceptible threshold for the human eye, i.e., Δ > 3.3. No changes were observed with Biodentine.

CONCLUSIONS

Materials used in endodontics may stain teeth. WMTA induced clinically perceptible crown discoloration, whereas Biodentine demonstrated color stability.