Materials and Methods: Two hundred seven subjects (29 vegetarians, 96 lacto-ovo vegetarians and 82 omnivores)
underwent an oral assessment and were asked to answer questionnaires about diet and oral care.
Results: Individuals who followed vegetarian and lacto-ovo vegetarian diets had statistically significantly more erosive
tooth wear than did omnivores (p = 0.004). Conversely, omnivores presented more tooth loss than did lacto-ovo vegetarians
(p = 0.027). Being a vegetarian or a lacto-ovo vegetarian entailed an increased risk (4 times and 2.5 times,
respectively) of presenting erosive tooth wear than being omnivorous.
Conclusion: Vegetarian and lacto-ovo vegetarian dietary patterns seem to favour the loss of dental structure by erosion.
Vegetarian patients should thus be informed about preventive measures and treated accordingly.