| Dental and occlusal changes during mandibular advancement splint therapy in sleep disordered patients. | |
| | |
MedLine Citation:
|
PMID: 12938843 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The aims of this longitudinal, observational study were two-fold: first, to determine in adults with sleep disorders the extent of dental and occlusal changes following the use of a mandibular advancement splint (MAS) and, second, to determine the time course of these changes. One hundred adult subjects (87 males, 13 females) diagnosed with obstructive sleep apnoea (OSA) and/or asymptomatic snoring were treated with non-adjustable MAS. At the outset each subject was randomly assigned to a group and reviewed 6, 12, 18, 24 or 30 months after placement of a splint. There were 20 subjects in each group. Craniofacial changes were measured on lateral cephalometric radiographs taken at the initial and review appointments. When the changes in all subjects were examined, the SNA, ANB angles, ANS-PNS length and face height increased, and the mandibular first molars and the maxillary first premolars significantly overerupted. Significant retroclination of the maxillary incisors and proclination of the mandibular incisors were accompanied by reductions in maxillary arch length, overbite and overjet. When the changes over time were determined, the mandibular symphysis was significantly lower at all review periods. An increase in face height and reductions in overbite and overjet were evident at 6 months, and over-eruption of the maxillary first premolars and mandibular first molars, and proclination of the lower incisors were found at 24 months. Significant positive correlations were also found between the amount of anterior opening by the appliances and changes in overbite at 24 and 30 months. The appliance used produced small, unpredictable changes in the occlusion that tended to occur after 24 months' wear. It is postulated that the changes in overbite might be lessened by keeping the bite opening to a minimum. |
| | |
Authors:
|
Christopher Robertson; Peter Herbison; Michael Harkness |
Related Documents
:
|
11243613 - Proliferation of masseter myocytes after distraction osteogenesis of the porcine mandible. 10328043 - An evaluation of dsm-iii-r and icd-10 benzodiazepine dependence criteria using rasch mo... 10328413 - Effects of eccentrically and concentrically induced unilateral fatigue on the involved ... |
Publication Detail:
|
Type: Clinical Trial; Journal Article; Randomized Controlled Trial |
Journal Detail:
|
Title: European journal of orthodontics Volume: 25 ISSN: 0141-5387 ISO Abbreviation: Eur J Orthod Publication Date: 2003 Aug |
Date Detail:
|
Created Date: 2003-08-26 Completed Date: 2003-11-06 Revised Date: 2004-11-17 |
Medline Journal Info:
|
Nlm Unique ID: 7909010 Medline TA: Eur J Orthod Country: England |
Other Details:
|
Languages: eng Pagination: 371-6 Citation Subset: D; IM |
Affiliation:
|
Department of Oral Sciences and Orthodontics, School of Dentistry, University of Otago, Dunedin, New Zealand. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Bicuspid / pathology Cephalometry Dental Arch / pathology Female Follow-Up Studies Humans Incisor / pathology Longitudinal Studies Male Mandible / pathology Mandibular Advancement / instrumentation* Maxilla / pathology Middle Aged Molar / pathology Nasal Bone / pathology Sella Turcica / pathology Sleep Apnea, Obstructive / therapy* Snoring / therapy* Splints* Vertical Dimension |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Matrix metalloproteinase -2, -8, -9, and -13 in gingival crevicular fluid of short root anomaly pati...
Next Document: Validation of measurements of mandibular protrusion in the treatment of obstructive sleep apnoea and...