Use of palatal miniscrew anchorage and lingual multi-bracket appliances to enhance efficiency of molar scissors-bite correction.
This article reports the successful treatment method of scissors-bite correction using miniscrew anchorage and a lingual multi-bracket appliance. A female patient, 17 years and 4 months old, had a chief complaint of crowding of anterior teeth. The patient was given the diagnosis of Angle Class I malocclusion with bimaxillary protrusion and incisor crowding. She also showed a scissors-bite of the second molar on the right side. Miniscrews were inserted into the palatal region of the upper second molar to reinforce the anchorage, and a lingual multi-bracket appliance was placed into the maxilla. Miniscrews inserted palatally were used to correct the scissors-bite in the first 3 months; afterward, they were used to retract the six anterior teeth. The total active treatment period was 26 months. Because of the bite-plane effect, the upper and lower molars were separated in occlusion, and the scissors-bite was corrected effectively within a short time. The combined use of palatal miniscrew anchorage and lingual multi-bracket appliances enhances efficiency of molar scissors-bite correction.
Department of Orthodontics and Dentofacial Orthopedics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Nagato
N
Tamamura
Shingo
S
Kuroda
Yasuyo
Y
Sugawara
Teruko
T
Takano-Yamamoto
Takashi
T
Yamashiro
D000293:Adolescent; D001641:Bicuspid / Q000601:surgery; D001863:Bone Screws; D005260:Female; D006801:Humans; D007180:Incisor / Q000473:pathology; D008311:Malocclusion, Angle Class I / Q000473:pathology / Q000628:therapy*; D008963:Molar / Q000473:pathology; D052280:Orthodontic Anchorage Procedures / Q000295:instrumentation*; D016382:Orthodontic Appliance Design; D016910:Orthodontic Brackets; D018704:Orthodontic Retainers; D010159:Palate / Q000601:surgery*; D012690:Serial Extraction; D014087:Tooth Movement Techniques / Q000295:instrumentation*; D016896:Treatment Outcome