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Effect of presurgical nasoalveolar molding (PNAM) appliance and cheiloplasty on alveolar molding of complete unilateral cleft lip and palate patients  

Kim, Na-Young (Department of Orthodontics, College of Dentistry, Seoul University)
Lee, Shin-Jae (Department of Orthodontics, College of Dentistry, Seoul University)
Baek, Seung-Hak (Department of Orthodontics, College of Dentistry, Seoul University)
Publication Information
The korean journal of orthodontics / v.33, no.4, 2003 , pp. 235-245 More about this Journal
Abstract
The goal of the present study was to evaluate the effects of PNAM appliance and cheiloplasty on alveolar molding. Samples consisted of 16 unilateral cleft lip and palate infants (10 males and 6 female, mean age=37.0 days after birth, average alveolar cleft gap=10.46m), who were treated with PNAM appliances by one orthodontist and rotation- advancement cheiloplasty by one surgeon in Seoul National University Hospital. Average duration of alveolar molding treatment was 13.10 weeks and these patients were recalled at average 8.31 weeks after cheiloplasty. These patients' models were obtained at initial visit (T0, mean age : $37.0\pm27.89$ days after birth), after successful alveolar molding (T1, mean age : $119.25\pm40.18$ days after birth), and after cheilopasty (T2, mean age : $190.81\pm42.78$ days after birth). Seven linear and five angular variables were measured using 1 : 1 photometry and soft ware program(V-ceph. Cybermed. Seoul, Korea). Paired t-test was performed to investigate statistical significance at p<0.05 level. 1 The posterior parts of alveolar segments were the stable structures during alveolar molding treatment period and after cheiloplasty in infants. 2. The closure of cleft gap during alveolar molding was usually due to backward bending of the whole part of the greater segment. 3. Although forward growth of the greater segment was hindered by alveolar molding, it resumed after cheiloplasty. 4. Increase of anterior inter-segment angle after cheiloplasty was due to the molding effect of the lip scar pressure.
Keywords
Unilateral cleft lip and palate; Pre-surgical nasoalveolar molding appliance; Cheiloplasty; lip pressure; alveolar molding;
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