| dc.description.abstract | Lateral cephalometry analysis is growing rapidly in dentistry, along with the
increasing needs for orthodontic treatments and vast development of digital era.
Different races show variations in morphological characteristics in lateral
cephalometric analysis. This study aims to describe lateral cephalometry patterns in
orthodontic patients with skeletal class I malocclusion using McNamara analysis. The
research method is descriptive analytic with cross-sectional design, using retrospective
data from medical records of lateral cephalometric radiographs from a sub-population
of orthodontic patients treated at various orthodontists’ practices in Medan. This
research used Mann-Whitney U test and Independent t-test. From 38 radiographs of
Malayan Mongoloid race patients and 39 radiographs of Asiatic Mongoloid race
patients, significant differences were found in skeletal variables, consisting of Point A
to N Perpendicular, Maxillomandibular Differential, and Pog to N Perpendicular. There
were no significant differences in dental variables. In soft tissue variables, significant
differences were found in Nasolabial Angle and Cant of Upper Lip. A significant
difference was also found in airway variables, which is the Lower Pharynx. Study
conclusions found that the maxilla and mandible in Asiatic race were significantly more
prognathic than those of Malayan race, with a notably greater Maxillomandibular
Differential observed in the Asiatic race. The soft tissue variables of Nasolabial Angle
and Cant of Upper Lip in Malayan race were significantly smaller than those of Asiatic
race. The airway value of lower pharyngeal width in the Malayan race is significantly
larger than that of the Asiatic race. | en_US |
