A collaborative survey on occlusion after orthodontic treatment in patients with unilateral cleft lip and palate in Japan. Issue 2 (1st June 2018)

• Record Type: Journal Article
• Authors: Mano, Mikiko; Ishiwata, Yasuo; Asahito, Toshikazu; Sakamoto, Teruo; Morishita, Tadashi; Oonishi, Yuri Yamamoto; Iwata, Toshio; Suda, Naoto; Susami, Takafumi; Saito, Isao
• Is Part Of: Orthodontic waves. Volume 77:Issue 2(2018:Jun.)
• Page Start: 101
• Page End: 110
• Publication Date: 2018-06-01
• Subjects: Orthodontic treatment -- Unilateral cleft lip and palate -- Treatment outcome -- Post treatment occlusion -- Orthognathic surgery; Orthodontics -- Periodicals; Orthodontics -- Periodicals; Orthodontie -- Périodiques; Orthodontie; Périodique électronique (Descripteur de forme); Ressource Internet (Descripteur de forme); 617.643
• DOI: 10.1016/j.odw.2018.02.003
• Languages: English
• ISSNs: 1344-0241

Abstract

Abstract: Purpose: A nationwide collaborative survey was performed in Japan to evaluate the recent treatment outcomes on occlusion after orthodontic/orthognathic treatment for patients with unilateral cleft lip and palate (UCLP). Methods: A retrospective collaborative survey was performed. Twenty-five facilities, including 14 university hospitals, examined their orthodontic records and cast models of patients with UCLP. Using common format, information of 492 non-syndromic UCLP cases were reported. Patients with syndromic UCLP or congenital missing maxillary central incisors were excluded. Basically, each facility reported their most recent 30 cases. Results: Of 492 cases, 330 cases (67.1%) were reported from 11 facilities, suggesting that orthodontic treatment for patients with CL/P was not fully centralized in Japan. Secondary alveolar bone grafting and orthognathic surgery were performed in 92.7% and 22.5% of cases, respectively. A significantly higher rate of orthognathic surgery was seen in cases reported from university hospitals (27.5%) than other facilities (14.8%). Average age at the end of active orthodontic/orthognathic treatment was 18.5 years. The lateral incisors on cleft sides were congenitally missing in 50.2% and displayed microdontia in 42.9% of cases. After orthodontic treatment, the central incisors and the canines were aligned without interdental spaces in 55.3% of cases. The positive anterior overjet was seen in 88.2%, and the centerline discrepancies between maxillary and mandibular incisors within 1/4 of mandibular incisor width was in 74.8% of cases. Conclusions: The final occlusion after orthodontic treatment was satisfactory in most cases. Findings of this study are referable for improving standard Japanese orthodontic care for patients with CL/P.