Normal variation of mandibular asymmetry in children.
Orthod Craniofac Res
; 26(3): 524-530, 2023 Aug.
Article
em En
| MEDLINE
| ID: mdl-36760175
ABSTRACT
OBJECTIVE:
To explore the normal variation of asymmetry in mandibles of children in the age group of 1 to 12 years. MATERIALS ANDMETHODS:
The study group consisted of 92 cadaveric mandibles of children with a dental age of 1 to 12 years old in possession of ACTA (Academic Centre for Dentistry Amsterdam), Faculty of Dentistry, the Netherlands. 3D models of the mandibles were obtained from CT-scans and hemimandibular volumes of all mandibles were calculated. The condylar height, ramus height, mandibular body length and the gonial angle were bilaterally determined using a novel landmark-based method, and the degree of asymmetry was calculated.RESULTS:
No relationship was found between dental age and asymmetry of the studied parameters (P < .05). The highest degree of asymmetry was found in the ramus height, whereas the gonial angle presented the lowest degree of asymmetry. A positive correlation was found between the asymmetry of the hemimandibular volume vs the height of the ramus (P < .05) and the length of the mandibular body (P < .05). An inverse correlation was found between the asymmetry of the ramus height vs the condylar height (P < .05), mandibular body length (P < .05) and gonial angle (P < .05).CONCLUSIONS:
Mandibular asymmetries in children did occur (9.8% of the included mandibles presented with a relevant overall asymmetry of ≥3%) and were unrelated to age. The different segments of the mandible seem to compensate for each other, in order to maintain a functional equilibrium.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Assimetria Facial
/
Mandíbula
Limite:
Child
/
Child, preschool
/
Humans
/
Infant
País/Região como assunto:
Europa
Idioma:
En
Revista:
Orthod Craniofac Res
Assunto da revista:
ODONTOLOGIA
/
ORTODONTIA
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Holanda