Nonextraction treatment with microscrew implants.
The maxillary and mandibular posterior teeth were retracted with microscrew implants (1.2 mm in diameter and six to 10 mm long) that were placed into the alveolar bone and used as anchorage. The retraction proceeded without adverse reciprocal effects on the reactive part of the conventional mechanics, such as premolar extrusion and flaring of the incisors. The anterior crowding was resolved without any deleterious effect on the facial profile. En masse movement of the posterior teeth and the whole dentition after anterior tooth alignment can reducethe treatment period and maximize the efficiency of the treatment. The microscrew implants were maintained firmly throughout the treatment and were able to provide an anchorage for retraction of whole dentitions. The efficacy and potency of the microscrew implants aid mechanics in the nonextraction treatment of both labial and lingual treatments.
Park
Hyo-Sang
HS
Department of Orthodontics, College of Dentistry, Kyungpook National University, Taegu, South Korea. parkhs@knu.ac.kr
Kwon
Tae-Geon
TG
Sung
Jae-Hyun
JH
D000293:Adolescent; D000328:Adult; D001863:Bone Screws; D015921:Dental Implants; D005260:Female; D006801:Humans; D008297:Male; D008312:Malocclusion, Angle Class II / Q000628:therapy*; D009971:Orthodontics, Corrective / Q000295:instrumentation*; D014087:Tooth Movement Techniques / Q000295:instrumentation
D015921:Dental Implants