The effect of gum chewing on sensitivity associated with in-office whitening procedures
Int J Dent Hygiene DOI: 10.1111/idh.12136 , . The effect of gum chewing on sensitivity associated with in-office whitening procedures.
Abstract
Objectives
Tooth
sensitivity is the most common side effect of in-office tooth-whitening
procedures. The purpose of this study was to determine whether chewing
gum containing 0.6% casein phosphopeptide-amorphous calcium phosphate
(CPP-ACP) before tooth whitening would reduce tooth sensitivity during
an in-office whitening procedure.
Methods
Thirty
participants were enrolled and randomized into three groups as follows:
group 1 was instructed to not chew gum during the study period; group 2
chewed five pieces of gum (with 0.6% CPP-ACP) for 10 min each day
1 week before whitening; and group 3 chewed five pieces of gum (without
CPP-ACP) for 10 min each day 1 week before whitening. All participants
had their teeth whitened with a 30% hydrogen peroxide in-office
whitening procedure. The participants' shades of teeth were evaluated
with a spectrophotometer four times during the study: at the initial
screening visit, immediately before whitening, immediately after
whitening and 1 week after whitening. Participants' sensitivity levels
were evaluated each time the shades were evaluated and additionally at
24 h after whitening using a 100-mm visual analogue scale.
Results
Thirty
participants were enrolled in the study. The average shade change was
−2.27 (±2.07). The average sensitivity for all groups at visit 1 was
5.12 (±13.94). The average sensitivity for all groups after whitening
was 19.81 (±13.95). There were significant differences in sensitivity
between groups 2 and 3 (P = 0.02), but neither group was significantly different from the control group (P = 0.86, P = 0.07).
Conclusions
Chewing gum before whitening, including gum with CPP-ACP, did not reduce sensitivity during in-office whitening procedures.
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