The use of titanium miniscrews for molar protraction in extraction treatment.
Orthodontic space closure in the mandibular arch by protraction of the mandibular second molars, after the extraction of first molars, may sometimes result in loss of incisor anchorage when using conventional orthodontic procedures. The introduction of miniscrews for immediate loading as orthodontic anchorage, has enlarged treatment possibilities. The authors illustrate their clinical experience in an adult patient treated with the extraction of mandibular first molars and the protraction of second and third molars into the extraction sites. Anchorage control was achieved with the surgical insertion of titanium miniscrews for immediate loading in the cortical bone distal to second bicuspids. Space closure was achieved by means of sliding mechanics according to Bidimensional Technique. The position of lower incisors was maintained preventing any detrimental facial effect.
Giancotti
Aldo
A
Department of Orthodontics, University of Rome Tor Vergata, Rome, Italy. giancott@uniroma2.it
Greco
Mario
M
Mampieri
Gianluca
G
Arcuri
Claudio
C
D000328:Adult; D001863:Bone Screws; D006801:Humans; D008312:Malocclusion, Angle Class II / Q000628:therapy; D008334:Mandible; D008963:Molar; D016382:Orthodontic Appliance Design; D009967:Orthodontic Appliances; D019516:Orthodontic Space Closure / Q000295:instrumentation*; D014025:Titanium; D014081:Tooth Extraction; D014087:Tooth Movement Techniques / Q000295:instrumentation*
D014025:Titanium