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Dentofacial morphology of mouth breathing children

2002; Fundação Odontológica de Ribeirão Preto; Volume: 13; Issue: 2 Linguagem: Inglês

10.1590/s0103-64402002000200010

1806-4760

Patrícia Toledo Monteiro Faria, Antônio Carlos de Oliveira Ruellas, Mírian Aiko Nakane Matsumoto, Wilma Terezinha Anselmo‐Lima, Fabiana C. Pereira,

Cleft Lip and Palate Research

The relationship between dentofacial morphology and respiration has been debated and investigated from various approaches. The aim of this study was to verify the skeletal and dental relationship of mouth and nose breathing children. Thirty-five children, 7 to 10 years of age, were submitted to orthodontic and otorhinolaryngologic evaluations and were separated into 2 groups: 15 nose breathers and 20 mouth breathers. Each subject underwent a cephalometric radiograph analysis. Statistical analysis (Mann-Whitney U test) indicated that changed mode of breathing was associated with 1) maxillo-mandibular retrusion in relation to the cranial base in the mouth breathers; 2) the SNGoGn and NSGn angles were greater in the mouth breathing group; 3) incisor inclination in both jaws and the interincisal angle were not different between groups. There was no statistically significant difference in the maxillary and mandibular molar heights between the nose breathers and mouth breathers.