Alveolar bone thickness and lower incisor position in skeletal Class I and Class II malocclusions assessed with cone-beam computed tomography / 대한치과교정학회지
The Korean Journal of Orthodontics
;
: 134-140, 2013.
Artículo
en Inglés
| WPRIM
| ID: wpr-150565
ABSTRACT
OBJECTIVE:
To evaluate lower incisor position and bony support between patients with Class II average- and high-angle malocclusions and compare with the patients presenting Class I malocclusions.METHODS:
CBCT records of 79 patients were divided into 2 groups according to sagittal jaw relationships Class I and II. Each group was further divided into average- and high-angle subgroups. Six angular and 6 linear measurements were performed. Independent samples t-test, Kruskal-Wallis, and Dunn post-hoc tests were performed for statistical comparisons.RESULTS:
Labial alveolar bone thickness was significantly higher in Class I group compared to Class II group (p = 0.003). Lingual alveolar bone angle (p = 0.004), lower incisor protrusion (p = 0.007) and proclination (p = 0.046) were greatest in Class II average-angle patients. Spongious bone was thinner (p = 0.016) and root apex was closer to the labial cortex in high-angle subgroups when compared to the Class II average-angle subgroup (p = 0.004).CONCLUSIONS:
Mandibular anterior bony support and lower incisor position were different between average- and high-angle Class II patients. Clinicians should be aware that the range of lower incisor movement in high-angle Class II patients is limited compared to average- angle Class II patients.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Tomografía Computarizada de Haz Cónico
/
Sobremordida
/
Incisivo
/
Maxilares
/
Maloclusión
/
Maloclusión Clase II de Angle
Límite:
Humanos
Idioma:
Inglés
Revista:
The Korean Journal of Orthodontics
Año:
2013
Tipo del documento:
Artículo
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