Hwang Soonshin, Choi Yoon Jeong, Chung Chooryung J, Kim Kyung-Ho
Department of Orthodontics, Gangnam Severance Dental Hospital, Institute of Craniofacial Deformity, College of Dentistry, Yonsei University, Seoul, Korea.
Department of Orthodontics, Institute of Craniofacial Deformity, College of Dentistry, Yonsei University, Seoul, Korea.
Korean J Orthod. 2017 Sep;47(5):323-333. doi: 10.4041/kjod.2017.47.5.323. Epub 2017 Jul 27.
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 anomalies that further complicate orthodontic treatment, such as retained deciduous teeth, impactions, transpositions and peg-shaped lateral incisors. Even though the 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 towards a decision to preserve the deciduous teeth as long as possible. This case report demonstrates that deciduous teeth, in this case the mandibular second molars and maxillary canine, can be incorporated into final occlusion with clinically stable long-term results.
对涉及下颌乳磨牙滞留且恒牙胚缺失的复杂病例进行正畸治疗具有挑战性。通常,先天性缺牙会伴有其他牙齿异常,这会使正畸治疗进一步复杂化,如乳牙滞留、阻生、异位萌出和锥形侧切牙。尽管滞留乳牙的长期预后尚不完全可预测,但如果牙齿状况良好,患者和临床医生可能倾向于决定尽可能长时间保留乳牙。本病例报告表明,乳牙,在此病例中为下颌第二乳磨牙和上颌尖牙,可以纳入最终咬合,获得临床稳定的长期效果。
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