title: Comparison of two implant-supported molar distalization systems.
abstract: OBJECTIVE
  To examine skeletal, dental, and soft tissue effects of the Miniscrew Implant Supported Distalization System (MISDS) and the Bone-Anchored Pendulum Appliance (BAPA).
  
  
  METHODS
  Among 28 patients displaying Angle Class II malocclusion, 14 patients with a mean age of 14.8 ± 3.6 years treated with MISDS were included in the first group, and 14 patients with a mean age of 14.5 ± 1.5 years treated with BAPA were included in the second group. The pretreatment and posttreatment lateral cephalograms were analyzed. Statistical evaluation was carried out using the paired Shapiro-Wilk test, the paired-sample t-test, and the unpaired t-test.
  
  
  RESULTS
  Upper posterior teeth were distalized successfully in both groups. Nearly bodily distalization was seen in the MISDS group, whereas significant distal tipping of the upper first molars was observed in the BAPA group (P < .001). There were no statistically significant changes in the sagittal position of the maxilla and mandible and in the position of the upper incisors as a result of treatment in either group.
  
  
  CONCLUSIONS
  Both methods provided absolute anchorage for distalization of posterior teeth; however, almost translatory distal movement was encountered in the MISDS group, and substantial distal tipping of the maxillary molars accompanied distalization in the BAPA group.
authors.affiliation: Faculty of Dentistry, Department of Orthodontics, Başkent University, Bahcelievler-Ankara 06490, Turkey. caglasar@yahoo.com
authors.forename: Cagla
authors.initials: C
authors.lastname: Sar
authors.forename: Burcak
authors.initials: B
authors.lastname: Kaya
authors.forename: Omur
authors.initials: O
authors.lastname: Ozsoy
authors.forename: Ayca Arman
authors.initials: AA
authors.lastname: Özcirpici
mesh_terms: D000293:Adolescent; D001863:Bone Screws; D002508:Cephalometry; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008312:Malocclusion, Angle Class II / Q000000981:diagnostic imaging / Q000628:therapy*; D008963:Molar; D052280:Orthodontic Anchorage Procedures / Q000295:instrumentation* / Q000379:methods; D017289:Orthodontic Appliances, Functional; D011859:Radiography; D014087:Tooth Movement Techniques / Q000295:instrumentation* / Q000379:methods