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Impact of dietary acidity related to beverage intake on dental erosion and bone fragility fractures

Dietary constituents related to acidity are emerging as risk factors for the increasing prevalence of dental erosion and fractures in females. The purpose of this study was to evaluate the impact of beverages related to dietary acidity on dental erosion and bone fragility fractures. Forty females aged 18–24 years provided detailed information on diet, medical, and fracture history. Measurements included anthropometry and bone mineral density by peripheral quantitative computer tomography (pQCT). Dental erosion was assessed by a dental exam. Logistic regression evaluating dental erosion and beverage types showed that coffee was the best predictor for dental erosion (χ2 = 5.15, p = 0.02). Females who displayed dental erosion consumed more coffee per week compared to those females who did not display dental erosion (49.0 oz/wk vs. 7.2 oz/wk, respectively; p = 0.01). Furthermore, females with dental erosion were more likely to have a fracture history compared to those females who did not have dental erosion but this increased risk was not significant (OR = 2.18, 95 % CI: 0.60–7.90, χ2 = 1.43, p = 0.23). There was no significant association between coffee consumption, fractures, and BMD. Findings from this study suggest that coffee consumption may be the most detrimental beverage to teeth mineralization and larger studies should investigate the role of coffee consumption on bone quality and fragility in females.