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Clinical effect of bone-anchored pendulum in treatment for class Ⅱ malocclusion / 中华医学美学美容杂志
Chinese Journal of Medical Aesthetics and Cosmetology ; (6): 238-242, 2019.
Artículo en Chino | WPRIM | ID: wpr-756562
ABSTRACT
Objective To study the clinical effect of bone-anchored pendulum in treatment for class Ⅱ malocclusion .Methods Twelve patients treated by bone-anchored pendulum were chosen .In each patient ,two microscrews were inserted in the anterior paramedian region of the median palatal suture ,6-9 mm posterior to the incisive foramen and 3 – 6 mm lateral to the median line .Pendulum that based on the microscrews was used to distalize maxillary first molar ,and the force applied was 250 g .Skeletal and dental changes were measured on cephalograms before (T1 ) and after (T2 ) distal-ization .Results Class Ⅰ molar relationship had been obtained 7 month after distalization .The aver-age distal movement of the maxillary first molars was 7 .07 mm ,and the inclination was 9 .93° .The second premolars were distalized an average of 5 .44 mm with inclinations of 5 .22° .The first premolars were distalized an average of 4 .09 mm with inclinations of 3 .95° .The maxillary anterior teeth were re-truded 0 .93 mm and palatally inclined 1 .66° .There was statistical difference in that change .Conclusions By the use of microscrew ,pendulum can distalize maxillary molar effectively without mesial move-ment of premolar and labial movement of incisor ,and no loss of dental anchorage is observed during the distal movement .

Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Idioma: Chino Revista: Chinese Journal of Medical Aesthetics and Cosmetology Año: 2019 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Idioma: Chino Revista: Chinese Journal of Medical Aesthetics and Cosmetology Año: 2019 Tipo del documento: Artículo