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Three dimensional analysis of tooth movement using different sizes of NiTi wire on NiTi scissors-bite corrector / 대한치과교정학회지
Korean Journal of Orthodontics ; : 43-53, 2009.
Artículo en Coreano | WPRIM | ID: wpr-650699
ABSTRACT

OBJECTIVE:

The purpose of this study was to compare the difference in three dimensional tooth movement using three different wire sizes (0.018 x 0.025-in, 0.016 x 0.022-in, 0.016-in) on a NiTi scissors-bite corrector.

METHODS:

Computed tomography (CT) images of the experimental model before and after tooth movement were taken and reconstructed into three dimensional models for superimposition. The direction and the amount of tooth movement were measured and analyzed statistically.

RESULTS:

The lingual and intrusive movements of the crown of the maxillary second molar were increased as the size of the NiTi wire increased. The roots of the maxillary second molars moved buccally except for the 0.016-in group. The intrusive movement of the roots of the maxillary second molars was increased as the size of the NiTi wire increased. Due to the use of orthodontic mini-implants, anchorage loss was under 0.2 mm on average.

CONCLUSIONS:

The 0.018 x 0.025-in NiTi wire was most effective in lingual and intrusive movement of the maxillary second molar which was in scissors-bite position. Indirect skeletal anchorage with a single orthodontic mini-implant was rigid enough to prevent anchorage loss.
Asunto(s)

Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Diente / Técnicas de Movimiento Dental / Coronas / Modelos Teóricos / Diente Molar Idioma: Coreano Revista: Korean Journal of Orthodontics Año: 2009 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Diente / Técnicas de Movimiento Dental / Coronas / Modelos Teóricos / Diente Molar Idioma: Coreano Revista: Korean Journal of Orthodontics Año: 2009 Tipo del documento: Artículo