Change in arch width in extraction vs nonextraction treatment / 대한치과교정학회지
Korean Journal of Orthodontics
;
: 65-72, 2007.
Artigo
em Coreano
| WPRIM
| ID: wpr-657164
ABSTRACT
OBJECTIVE:
This study was performed to investigate the influences of extraction and nonextraction treatment on smile esthetics by measuring dental arch width changes.METHODS:
Pretreatment and posttreatment study models of 30 first premolar extraction cases and 30 nonextraction cases were randomly selected to determine whether extraction treatment results in narrow dental arches, and a consequent unaesthetic smile. Arch widths were measured from the cusp tips of the canines and the first molars. Posterior arch widths were also measured at a constant arch depth derived by averaging randomly chosen nonextraction models.RESULTS:
The intercanine widths increased significantly in the extraction sample, whereas the intermolar widths decreased significantly. The arch width at a standardized arch depth was significantly wider in the extraction subjects.CONCLUSION:
These results elucidate that constriction in arch width is not a materialized consequence of extraction treatment. It leads to postulate that an esthetically compromising effect from narrow dental arches on smile is hardly anticipated with extraction treatment.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Dente Pré-Molar
/
Constrição
/
Arco Dental
/
Estética
/
Dente Molar
Idioma:
Coreano
Revista:
Korean Journal of Orthodontics
Ano de publicação:
2007
Tipo de documento:
Artigo
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