A comparison of skeletal, dentoalveolar and soft tissue characteristics in white and black Brazilian subjects
J. appl. oral sci
; 18(2): 135-142, Mar.-Apr. 2010. ilus, tab
Article
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| LILACS
| ID: lil-550404
Biblioteca responsable:
BR1.1
ABSTRACT
OBJECTIVE:
This study aimed to compare skeletal, dentoalveolar and soft tissue characteristics in white and black Brazilian subjects presenting normal occlusions. MATERIAL ANDMETHODS:
The sample comprised the lateral cephalograms of 106 untreated Brazilian subjects with normal occlusion, divided into two groups Group 1- 50 white subjects (25 of each gender), at a mean age of 13.17 years (standard deviation 1.07); and Group 2- 56 black subjects (28 of each gender), at a mean age of 13.24 years (standard deviation 0.56). Variables studied were obtained from several cephalometric analyses. Independent t tests were used for intergroup comparison and to determine sexual dimorphism.RESULTS:
black subjects presented a more protruded maxilla and mandible, a smaller chin prominence and a greater maxillomandibular discrepancy than white subjects. Blacks presented a more horizontal craniofacial growth pattern than whites. Maxillary and mandibular incisors presented more protruded and proclined in black subjects. The nasolabial angle was larger in whites. Upper and lower lips were more protruded in blacks than in whites.CONCLUSIONS:
The present study found a bimaxillary skeletal, dentoalveolar and soft tissue protrusion in black Brazilian subjects compared to white Brazilian subjects, both groups with normal occlusion. Upper and lower lips showed to be more protruded in blacks, but lip thickness was similar in both groups.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
LILACS
Asunto principal:
Cefalometría
/
Población Negra
/
Población Blanca
/
Cara
/
Huesos Faciales
Límite:
Adolescent
/
Female
/
Humans
/
Male
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
J. appl. oral sci
Asunto de la revista:
ODONTOLOGIA
Año:
2010
Tipo del documento:
Article
País de afiliación:
Brasil