The effect of fluoridation on discoloring of bleached teeth / 대한치과보철학회지
The Journal of Korean Academy of Prosthodontics
;
: 257-265, 2009.
Article
in Korean
| WPRIM
| ID: wpr-30013
ABSTRACT
STATEMENT OF PROBLEM & PURPOSE:
To study the effect of different fluoridation methods after in-office bleaching on the color of teeth during severe staining with coffee. MATERIAL ANDMETHODS:
44 specimens were randomly divided into four groups. Group 1 (no bleaching, no fluoride, coffee) was served as control for the influence of coffee on the color of untreated teeth. Group 2, 3 and 4 were undergone bleaching with 35% H2O2 for 30 minutes a day on 3 consecutive days. Group 2 was remained without fluoridation. Group 3 and 4 were fluoridated for 1 hour with either Cavity shield(R) or pH 7 Gel(R). All of groups were immersed in coffee solution for 7 days. Color determination was accomplished using the spectrophotometer (VITA Easyshade(R)).RESULTS:
Delta L and Delta h increased, whereas Delta C decreased in the bleached groups. Pairwise comparisons with Tukey's HSD showed that there were statistically significant differences for Delta L and Delta h between the bleached groups and the non-bleached group (P .05). Also there were no statistically significant differences for Delta L, Delta C and Delta h between the group 3 treated with Cavity shield(R) and the group 4 treated with pH 7 Gel(R) (P > .05).CONCLUSION:
It was concluded that fluoridation was not beneficial to the prevention of extrinsic stains after bleaching.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Tooth
/
Fluoridation
/
Coffee
/
Coloring Agents
/
Fluorides
/
Hydrogen-Ion Concentration
/
Immersion
Language:
Korean
Journal:
The Journal of Korean Academy of Prosthodontics
Year:
2009
Type:
Article
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