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KMID : 0353320120360010057
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Oral Biology Research
2012 Volume.36 No. 1 p.57 ~ p.62
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Treatment of ectopic eruption of maxillary permanent first molars with modified halterman appliance
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Jeon Sang-Yun
Lee Sang-Ho
Lee Nan-Young
Park Seung-Hyo
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Abstract
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Ectopic eruption is defined as eruption of teeth into an abnormal position due to variable local factors, including disharmony of the tooth-jaw relationship. The prevalence of ectopic eruption has been reported to vary between 0.75-6%. Most ectopic eruptions occur in the maxilla. Methods of treatment are classified as follows: appliances that work on the contact point for unlocking andare cemented on more than one tooth for distal movement, and space regaining after extraction of a deciduous molar. In the first case, ectopic eruption of the first permanent molar was observed, with a second deciduous molar having a resorbed root. In the second case, a second deciduous molar was determined to be sufficient for single anchorage. In the first case, we treated the ectopic eruption with a bilateral modified halterman appliance and a unilateral appliance was used for the second case. A modified halterman appliance can be regarded as a good solution for treatment of ectopic eruption of maxillary first permanent molars.
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KEYWORD
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Ectopic tooth eruption, Permanent first molar, Modified halterman appliance
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