Posttreatment stability of four first bicuspid extraction cases treated with the Alexander technique--model analysis / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 271-274, 2005.
Article
in Chinese
| WPRIM
| ID: wpr-273239
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the posttreatment stability of four first bicuspid extraction cases with the Alexander technique.</p><p><b>METHODS</b>Fifteen patients, 8 males and 7 females in the permanent dentition were selected. The age range of the patients was 10.3 to 16.2 years old. Four first bicuspids of every patient were extracted and all patients were treated with the Alexander technique. The study casts were taken before (T(1)), after treatment (T(2)) and 27.8 months averagely follow-up (T(3)). Data were correlated by means of paired t tests.</p><p><b>RESULTS</b>Although maxillary and mandibular intercanine widths were increased by 0.98 mm and 0.87 mm, respectively, during treatment, they were decreased by 0.37 mm and 0.72 mm, respectively, during follow-up period. Maxillary and mandibular crowding were increased by 0.53 mm and 0.98 mm, respectively, during follow-up period. No statistical significance were found. Upper and lower arch depth were decreased significantly due to retraction of anterior teeth and remained stable during follow-up period.</p><p><b>CONCLUSIONS</b>According to this study, the design of the Alexander appliance and the Alexander technique are helpful for stability of extraction therapy. Follow-up is still necessary to evaluate the long-term stability.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Orthodontics, Corrective
/
General Surgery
/
Therapeutics
/
Tooth Extraction
/
Bicuspid
/
Follow-Up Studies
/
Treatment Outcome
/
Models, Dental
/
Malocclusion, Angle Class I
/
Malocclusion, Angle Class II
Type of study:
Observational study
/
Prognostic study
Limits:
Adolescent
/
Child
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Stomatology
Year:
2005
Type:
Article
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