title: Analysis of the 619 Brånemark System TiUnite implants: a retrospective study.
abstract: The purpose of this retrospective study was to determine the outcome of Brånemark  System TiUnite® implants (Nobel Biocare/Sweden), and to identify the risk factors associated  with implant failure. A total of 151 patients (83 maxillae and 91 mandibles) received 619  implants from July 2003 until May 2010. The patients included 86 males and 65 females, with a  median age of 51.6 years and an age range of 16 to 90 years at the time of implant surgery.  Seventeen maxillae and 16 mandibles were completely edentulous, and 66 maxillae and 75 mandibles  were partially edentulous. All the patients were followed until June 2011. Among the 619 implants,  9 maxillary implants and 8 mandibular implants were unsuccessful. The overall survival rate was 96.82%.  A logistic regression analysis identified that a history of steroid treatment, application of a  dento-maxillary prosthesis, a lack of mechanical coupling between the implants, and the length of  the implants (≤8.5mm) were significant predictors of implant failure.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine. shibuya@med.kobe-u.ac.jp
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Shibuya
authors.forename: Naoki
authors.initials: N
authors.lastname: Takata
authors.forename: Junichiro
authors.initials: J
authors.lastname: Takeuchi
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Tsuji
authors.forename: Suguru
authors.initials: S
authors.lastname: Ishida
authors.forename: Masaki
authors.initials: M
authors.lastname: Kobayashi
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Suzuki
authors.forename: Takumi
authors.initials: T
authors.lastname: Hasegawa
authors.forename: Isao
authors.initials: I
authors.lastname: Kamae
authors.forename: Takahide
authors.initials: T
authors.lastname: Komori
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015921:Dental Implants / Q000706:statistics & numerical data*; D019544:Equipment Failure Analysis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011475:Prosthesis Failure; D012189:Retrospective Studies; D012307:Risk Factors; D017211:Treatment Failure; D055815:Young Adult
chemical_list: D015921:Dental Implants