Unusual extraction treatment of Class I bialveolar protrusion using microimplant anchorage.
This case report describes the treatment of a 16-year-old girl who had severe bialveolar protrusion. Patients with bialveolar protrusion are commonly treated with four first premolar extractions and retraction of the anterior teeth. Unfortunately in this patient, the mandibular left second molar had to be extracted because of extensive caries. To create sufficient space for retraction of the anterior teeth, the mandibular left posterior teeth were retracted with the mandibular posterior microimplant (1.2 mm in diameter, 6 mm long) placed into the retromolar area followed by en masse retraction of the mandibular anterior teeth. Microimplants can provide anchorage for obtaining a good facial profile even without premolar extraction in the case of bialveolar protrusion with the absence of the second molar.
Chae
Jong-Moon
JM
The Korean Orthodontic Research Institute Inc, South Korea. jongmoon@eulji.ac.kr
D000293:Adolescent; D002508:Cephalometry; D015921:Dental Implants; D005145:Face / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008311:Malocclusion, Angle Class I / Q000000981:diagnostic imaging / Q000628:therapy*; D008334:Mandible; D008963:Molar / Q000601:surgery; D052280:Orthodontic Anchorage Procedures; D009971:Orthodontics, Corrective / Q000295:instrumentation / Q000379:methods*; D011859:Radiography; D014081:Tooth Extraction
D015921:Dental Implants