Document Detail

Maxillary Anterior Segmental Distraction Osteogenesis With 2 Different Types of Distractors.
MedLine Citation:
PMID:  22565878     Owner:  NLM     Status:  Publisher    
OBJECTIVE: Maxillary anterior segmental distraction osteogenesis (DO) has been the alternative treatment option for patients with midfacial retrusion. To investigate a potentially more effective maxillary anterior segmental DO, a newly designed intraoral alveolar distractor was applied. The objectives of this study were to investigate the skeletal and dental effects of maxillary anterior segmental DO and the relapse pattern. METHODS: The study was carried out for 8 patients with unilateral cleft lip and palate (mean age, 16 years 7 months). Four patients were treated with an intraoral appliance (IA), and the remaining with a rigid external distractor (RED). Dental and skeletal measurements were obtained for both groups. These measurements were compared for different time points including pre-DO (T1), post-DO (T2), postconsolidation (T3), and 1-year follow-up (T4). RESULTS: Horizontal change of A point was significantly larger after distraction period (T2) in the RED group (mean, 11.0 mm; median, 10.1 mm) than in the IA group (mean, 6.6 mm; median, 7.4 mm) (P < 0.05). Relapse of A point was observed in both RED (mean, -2.3 mm; median, -2.3 mm) and IA groups (mean, -2.6 mm; median, -1.5 mm) at T4. The vertical position of the anterior nasal spine was found to have moved downward in the RED group (mean, 5.5 mm; median, 4.9 mm) but upward in the IA group (mean, -2.5 mm; median, -2.7 mm) after distraction, showing a significant difference between groups (P < 0.05). Axis of upper incisor increased at T2 in the IA group (mean, 10.4 degrees; median, 11.3 degrees), but decreased in the RED group (mean, -10.2 degrees; median, -9.0 degrees) (P < 0.05). It recovered in the RED group at T4. CONCLUSIONS: Maxillary anterior segmental DO is effective for the treatment of patients with cleft lip and palate. The alveolar space is regained, and the facial profile is improved without velopharyngeal problems. Superior results are obtained using the RED appliance for maxillary anterior segmental DO relative to the use of the intraoral distractor appliance.
Hye-Young Choi; Chung-Ju Hwang; Hee-Jin Kim; Hyung-Seog Yu; Jung-Yul Cha
Related Documents :
22810158 - Arthroplasty knee surgery and alcohol use: risk factor or benefit?
22746358 - Does physiotherapist-guided pelvic floor muscle training increase the quality of life i...
22616078 - Oral and intranasal steroid treatments improve nasal patency and paradoxically increase...
2778368 - Short-term multidrug therapy in multibacillary leprosy--review of 80 cases in two provi...
10149758 - Laser treatment of cervical intraepithelial neoplasia and the endocervical button.
22956048 - Medium-term result of elite plus hip arthroplasty: the second modular evolution of the ...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-4
Journal Detail:
Title:  The Journal of craniofacial surgery     Volume:  -     ISSN:  1536-3732     ISO Abbreviation:  -     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-5-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9010410     Medline TA:  J Craniofac Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
From the *Department of Orthodontics, Yonsei University College of Dentistry; and †Division of Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Center, Brain Korea 21 Project, Yonsei University College of Dentistry, Seoul, South Korea.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  High-Power Diode Laser Versus Electrocautery Surgery on Human Papillomavirus Lesion Treatment.
Next Document:  Clinical Extension of Corrective Malarplasty With Tripod Osteotomy.