Application Tip and Concentration of a Self-mixing Bleach: Hydrogen Peroxide Inside the Pulp Chamber, Color Change, and Amount of Bleaching Gel Used.
Oper Dent
; 48(2): 146-154, 2023 Mar 01.
Article
en En
| MEDLINE
| ID: mdl-36786759
ABSTRACT
PURPOSE:
The objective of this study was to evaluate if the application method (tip with brush or tip without brush) and hydrogen peroxide (HP) concentration (6% or 35% self-mixing) of in-office bleaching gel influences the penetration of HP into the pulp chamber, color change, and the amount of bleaching gel used.METHODS:
Forty healthy premolars were randomly divided into the following five groups (n=8) no treatment; HP6% using a tip with a brush, HP6% using a tip without a brush, HP35% using a tip with a brush, and HP35% using a tip without a brush. After treatments, the HP concentration (µg/mL) within the pulp chamber was determined using UV-Vis spectrophotometry. The color change (ΔEab, ΔE00, and ΔWID) was evaluated using a digital spectrophotometer. The amount of gel used (g) in each group was measured using a precision analytical balance. Data from each test were submitted to parametric tests (α=0.05).RESULTS:
The tip with a brush resulted in a lower amount of HP inside the pulp chamber and less gel used when compared with the tip without a brush, regardless of HP concentration (p<0.05). However, regarding the tip used, although no significant difference was observed when HP35% was used (p>0.05), a higher whitening effect was observed when the 6% HP was applied without a brush as opposed to with a tip brush (p<0.05).CONCLUSIONS:
The use of a tip with a brush, regardless of the in-office bleaching gel concentration (6% or 35% self-mixing), presented a lower penetration and lower volume of spent gel when compared to a tip without brush. However, the whitening effect depended on the concentration of HP used.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Blanqueamiento de Dientes
/
Blanqueadores Dentales
/
Peróxido de Hidrógeno
Tipo de estudio:
Clinical_trials
Límite:
Humans
Idioma:
En
Revista:
Oper Dent
Año:
2023
Tipo del documento:
Article
País de afiliación:
España