title: Intrusion of the overerupted upper left first and second molars by mini-implants with partial-fixed orthodontic appliances: a case report.
abstract: Overeruption of maxillary molar(s) because of loss of the opposing teeth creates occlusal interference and functional disturbances. To restore proper occlusion, intrusion of the overerupted molars becomes essential before reconstruction can be initiated. A plausible procedure is orthodontic intrusion, which demands calibrated anchorage support from intraoral multiunit teeth and from headgear wear. In this report, we present a simplified and localized version of the orthodontic appliances in conjunction with mini-implants to intrude the overerupted molars. The purpose of using implants as skeletal anchorage was to eliminate the need for patient compliance for headgear wear and to overcome the difficulty resulting from the shortage of anchor teeth. The results showed that the biological responses of the teeth and the surrounding bony structures to the intrusion appeared normal and acceptable. Furthermore, the periodontal health and vitality of the teeth were well maintained even after a one-year follow-up.
authors.affiliation: School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC.
authors.forename: Chung-Chen Jane
authors.initials: CC
authors.lastname: Yao
authors.forename: Chou-Bing
authors.initials: CB
authors.lastname: Wu
authors.forename: Hung-Yi
authors.initials: HY
authors.lastname: Wu
authors.forename: Sang-Heng
authors.initials: SH
authors.lastname: Kok
authors.forename: Hsin-Fu Frank
authors.initials: HF
authors.lastname: Chang
authors.forename: Yi-Jane
authors.initials: YJ
authors.lastname: Chen
mesh_terms: D000328:Adult; D015921:Dental Implants; D005260:Female; D006801:Humans; D008311:Malocclusion, Angle Class I / Q000628:therapy*; D008437:Maxilla / Q000601:surgery; D008963:Molar; D016382:Orthodontic Appliance Design / Q000295:instrumentation*; D009967:Orthodontic Appliances; D014087:Tooth Movement Techniques / Q000295:instrumentation*
chemical_list: D015921:Dental Implants