title: Comparison of genioplasty using Medpor and osteotomy.
abstract: OBJECTIVE
  This retrospective study compared genioplasty using Medpor with osteotomy by measuring the amount of anteroposterior change in hard and soft tissue.
  
  
  METHODS
  Thirty-three patients who underwent mentum augmentation and who were followed-up >6 months were included. Subjects were divided into 2 groups: group A, with 14 patients who underwent genioplasty using osteotomy; and group B, with 19 patients who underwent genioplasty using Medpor. Patients chose one of the treatments themselves.
  
  
  RESULTS
  The mean relapse rate of the most prominent or anterior point on the chin in the midsagittal plane of patients who went underwent osteotomy was 18.59%, and the mean relapse rate of patients who went underwent genioplasty with Medpor was 14.56%.
  
  
  CONCLUSIONS
  It was found that the amount of the movement at the time of surgery when checked after surgery did not change in patients who underwent genioplasty using Medpor compared with patients who underwent genioplasty using osteotomy.
authors.affiliation: Researcher, Department of Oral and Maxillofacial Surgery, College of Dentistry, Chosun University, Gwangju, Korea.
authors.forename: Jung-Yeop
authors.initials: JY
authors.lastname: Park
authors.forename: Su-Gwan
authors.initials: SG
authors.lastname: Kim
authors.forename: Sung-Mun
authors.initials: SM
authors.lastname: Baik
authors.forename: Seo-Yoon
authors.initials: SY
authors.lastname: Kim
mesh_terms: D000293:Adolescent; D000328:Adult; D001672:Biocompatible Materials; D002508:Cephalometry / Q000706:statistics & numerical data; D002680:Chin / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D010027:Osteotomy; D011095:Polyethylenes; D019736:Prostheses and Implants; D019651:Plastic Surgery Procedures / Q000379:methods*; D012189:Retrospective Studies; D013223:Statistics as Topic; D055815:Young Adult
chemical_list: D001672:Biocompatible Materials; C084562:Medpor; D011095:Polyethylenes