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KMID : 0358920220490040402
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Journal of the Korean Academy of Pedodontics
2022 Volume.49 No. 4 p.402 ~ p.413
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Factors Influencing the Duration of Forced Eruption in Impacted Maxillary Canines
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Han Ji-Hye
Mah Yon-Joo
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Abstract
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The aim of this study was to identify factors that affect the treatment duration and to predict the duration of forced eruption in impacted maxillary canines using panoramic radiographs and cone-beam computed tomography. This retrospective study was performed by reviewing medical records and radiographs of 73 patients (93 impacted maxillary canines) from the age of 8 to 18 years who were treated with surgical and orthodontic interventions on impacted maxillary canines from January 2012 to December 2020 in Ajou University Dental Hospital. Stepwise multiple regression analysis showed that the distance between the canine cusp tip and the occlusal plane, mesio-distal location, bucco-palatal location, patient’s age, and use of rapid palatal expansion are significant factors with regard to the duration of forced eruption. There was a statistically significant correlation of the treatment duration with the angulation between the axis of the canine and the occlusal plane and unilateral or bilateral impaction. It can be concluded that the duration of forced eruption in impacted maxillary canines could be shorter when the impacted canine is closer to the occlusal plane and located in the lateral incisor or canine area, buccal or middle, the patient is younger and uses rapid palatal expansion.
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KEYWORD
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Impacted maxillary canine, Forced eruption, Panoramic radiograph, Cone beam computed tomography
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