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Prevention of dental erosion of a sports drink by nano‐sized hydroxyapatite in situ study
Author(s) -
Min Ji Hyun,
Kwon Ho Keun,
Kim Baek Il
Publication year - 2015
Publication title -
international journal of paediatric dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.183
H-Index - 62
eISSN - 1365-263X
pISSN - 0960-7439
DOI - 10.1111/ipd.12101
Subject(s) - medicine , dentistry , in situ , nano , composite material , meteorology , physics , materials science
Aim To evaluate the inhibitory effects of the sports drink containing nano‐sized hydroxyapatite (nano‐ HA ) on dental erosion in situ . Design The study had a single‐blind, two‐treatment crossover design. The two treatment groups were a control group ( CG ; Powerade only) and an experimental group ( EG ; 0.25% wt/vol nano‐ HA was added to Powerade). Ten subjects wore removable palatal appliances containing bovine enamel specimens. The appliances were immersed in each drink for 10 mins, 4 times a day for 10 days. The tooth surface microhardness ( SMH ) was tested, and the erosion depth and the morphology of the tooth surface were observed. The data were analysed by repeated measures anova and t‐test. Results Between the baseline and the 10th day, SMH was decreased by 80% in the specimens of the CG ( P < 0.001), whereas there was only a 6% decrease in the SMH of the specimens in the EG . An erosion depth of 12.70 ± 4.66 μ m and an irregular tooth surface were observed on the 10th day in the specimens of the CG . No dental erosions, however, was observed in the specimens of the EG . Conclusions The sports drink containing 0.25% nano‐ HA was effective in preventing dental erosion in situ .