Nasolabial angle in finger sucking patients / Maloclusão nasolabial em pacientes com sucção de dedo

ABSTRACT

The purpose of this study is to analise the nasolabial angle and other cephalometric measurements that express the anteroposterior relationship of maxilla and mandibule in individuals with finger sucking habit. Thirty lateral cephalograms were selected from the patient files of the scientific documentation service, Orthodontic GraduationCourse of the Piracicaba College of Dentistry, FOP/UNICAMP. The selection criteria was white Brazilian female subjects, 7 to 10 years old, in the phase of mixed dentition, and presenting finger sucking habit. The observed cephalometric measurements were nasolabialangle, SNA, SNB, ANB, 1.NA, 1-NA and Nperp-A. The resultswere compared using StudentÆs ætÆ test and, significance level of 5% (á = 0,05). The analysis showed no differences in the nasolabial angle in subjects presenting finger sucking habit; the maxilla and mandibulewas well positioned, relative to the cranial base, and the upper incisors were well positioned