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The effect of gum chewing on sensitivity associated with in‐office whitening procedures
Author(s) -
Henry RK,
Carkin M
Publication year - 2015
Publication title -
international journal of dental hygiene
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.674
H-Index - 38
eISSN - 1601-5037
pISSN - 1601-5029
DOI - 10.1111/idh.12136
Subject(s) - tooth whitening , medicine , tooth sensitivity , dentistry , chewing gum , visual analogue scale , surgery , food science , chemistry
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.