Quebra pós eruptiva de tecido dentário e sua relação com hipomineralização e fatores psicossomáticos: um estudo transversal

Abstract

Aim: to verify the relationship between post-eruptive tooth breakage, enamel development disorder (hypomineralization) and psychosomatic factors such as anxiety, waking bruxism and TMD. Methods: A cross-sectional study was carried out with 274 childrenaged 7 to 12 years. Data were collected by clinical examination based on the European Academy Pediatric Dentistry (EAPD) criteria for the diagnosis of hypomineralization and post-eruptive breaks. The diagnosis of dental caries was guided by WHO parameters. Structured And Validated questionnaires were applied through interviews to analyze psychosomatic factors such as anxiety, waking bruxism and temporomandibular disorders. Statistical analysis involved descriptive and inferential analysis using Fisher's Exact Test and chi-square test. Results: 6.2% of children had at least one tissue break, either in enamel or in enamel and dentin. 95.6% of breaks were found in posterior teeth. Tissue breaks had a statistically significant association with hypomineralization in primary (p=0.002) and permanent teeth (p<0.001). Regarding The color of hypomineralization, a greater predilection for breakage was observed when it was yellow-brown (p<0.001). Dental caries (p=0.003) and occlusal wear (p<0.001) were also associated with breakage. Psychosomatic variables were not significantly associated with such breaks, however awake bruxism was associated with incisor molar hypomineralization injuries (p=0.012). Conclusions: it was found that post-eruptive breaks were associated with hypomineralization teeth enamel were associated with hypomineralization teeth enamel in primary and permanent teeth. Furthermore, tooth decay and occlusal wear have been shown to be risk factors for such breaks. As for psychosomatic factors, no associations with breaks were observed. However, association between awake bruxism and incisor molar hypomineralization was found.