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KMID : 0361920170470050323
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Korean Journal of Orthodontics
2017 Volume.47 No. 5 p.323 ~ p.333
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Long-term survival of retained deciduous mandibular second molars and maxillary canine incorporated into final occlusion
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Hwang Soon-Shin
Choi Yoon-Jeong
Chung Choo-Ryung J.
Kim Kyung-Ho
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Abstract
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Orthodontic treatment of a complex case that involves retained deciduous mandibular second molars with missing permanent successors is challenging.Usually, congenitally missing teeth are manifested with other dental anomaliesthat further complicate orthodontic treatment, such as retained deciduousteeth, impactions, transpositions and peg-shaped lateral incisors. Even thoughthe long term prognosis of the retained deciduous tooth is not fully predictable,if the teeth are in good condition, the patient and clinician may incline towardsa decision to preserve the deciduous teeth as long as possible. This case reportdemonstrates that deciduous teeth, in this case the mandibular second molarsand maxillary canine, can be incorporated into final occlusion with clinicallystable long-term results.
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KEYWORD
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Agenesis, Transposition, Tooth impaction, Stability
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