Alterations of papilla dimensions after orthodontic closure of the maxillary midline diastema: a retrospective longitudinal study
Journal of Periodontal & Implant Science
;
: 197-206, 2016.
Artículo
en Inglés
| WPRIM
| ID: wpr-173089
ABSTRACT
PURPOSE:
The aim of this study was to evaluate alterations of papilla dimensions after orthodontic closure of the diastema between maxillary central incisors.METHODS:
Sixty patients who had a visible diastema between maxillary central incisors that had been closed by orthodontic approximation were selected for this study. Various papilla dimensions were assessed on clinical photographs and study models before the orthodontic treatment and at the follow-up examination after closure of the diastema. Influences of the variables assessed before orthodontic treatment on the alterations of papilla height (PH) and papilla base thickness (PBT) were evaluated by univariate regression analysis. To analyze potential influences of the 3-dimensional papilla dimensions before orthodontic treatment on the alterations of PH and PBT, a multiple regression model was formulated including the 3-dimensional papilla dimensions as predictor variables.RESULTS:
On average, PH decreased by 0.80 mm and PBT increased after orthodontic closure of the diastema (P<0.01). Univariate regression analysis revealed that the PH (P=0.002) and PBT (P=0.047) before orthodontic treatment influenced the alteration of PH. With respect to the alteration of PBT, the diastema width (P=0.045) and PBT (P=0.000) were found to be influential factors. PBT before the orthodontic treatment significantly influenced the alteration of PBT in the multiple regression model.CONCLUSIONS:
PH decreased but PBT increased after orthodontic closure of the diastema. The papilla dimensions before orthodontic treatment influenced the alterations of PH and PBT after closure of the diastema. The PBT increased more when the diastema width before the orthodontic treatment was larger.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Estudios Retrospectivos
/
Estudios de Seguimiento
/
Estudios Longitudinales
/
Cierre del Espacio Ortodóncico
/
Diastema
/
Estética Dental
/
Encía
/
Concentración de Iones de Hidrógeno
/
Incisivo
Tipo de estudio:
Estudio observacional
/
Estudio pronóstico
/
Factores de riesgo
Límite:
Humanos
Idioma:
Inglés
Revista:
Journal of Periodontal & Implant Science
Año:
2016
Tipo del documento:
Artículo
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