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KMID : 0358920010280030488
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Journal of the Korean Academy of Pedodontics
2001 Volume.28 No. 3 p.488 ~ p.495
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THE EFFECT OF DISTAL MOVEMENT OF UPPER MOLAR USING THE PENDULUM APPLIANCE
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Lee Chang-Seep
Kim Jae-Kwang
Kang Dug-Il
Song Kwang-Chul
Jung Hyun-Ku
Lee Sang-Ho
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Abstract
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Treatment of class II malocclusions require distalization of maxillary molars into class I relationship. Intraarch distal molar movement techniques have recently assumed an important role in young patients. In this study, the dental and skeletal effects of the pendulum appliance were evaluated by means of cephalometric radiographs. The samples were consisted of 19 patients: 11 females and 8 males, mean age years. Measurements were obtained from cephalometric prior to and the day of removal of the pendulum appliance. Treatment changes were analyzed. The following results were obtain. 1. The pendulum appliance produced distal molar movement with a mean intrusion of , mean period weeks. 2. The anchor tooth was forward movement and extrusion, and labial tilting of incisors. 3. The angle between palatal plane and mandibular plane increased significantly. 4. There was no significant difference in according to 2nd molar position. 5. Total movement was consisted of 74% distal movement of 1st molar and 26% forward movement of the anchor tooth.
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KEYWORD
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Class II malocclusion, Distal molar movement, Pendulum appliance
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