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  • Title: Clinical challenges in treating a patient with deviated dental midlines and delayed root development of the mandibular left second premolar.
    Author: Saga AY, Maruo IT, Maruo H, Guariza Filho O, Tanaka OM.
    Journal: Am J Orthod Dentofacial Orthop; 2009 Apr; 135(4 Suppl):S103-12. PubMed ID: 19362261.
    Abstract:
    This case report describes the treatment of a girl, aged 13.3 years, with a concave face and a Class I relationship on the right and Class III on the left at the first molars. The left canines were in full Class II occlusion. The overbite was excessive at 80%. The maxillary dental midline was deviated 2.0 mm to the right, and the mandibular dental midline was 3.0 mm on the opposite side with a 5-mm deviation between both arches. There was a -2-mm mandibular arch length discrepancy, but, considering the intrabony left second premolar with root-delayed development, the arch length discrepancy was -8 mm. The incisors were also retroclined. A nonextraction treatment plan was used. When space to the left of the intrabony second premolar was opened, the tooth erupted passively, and the root had a normal length. The esthetic results were functional and pleasing.
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