title: A survey of the use of mandibular implant overdentures in 10 countries.
abstract: OBJECTIVE
  This preliminary international survey compared provision of implant-retained overdentures to fixed implant-supported prostheses for edentulous mandibles.
  
  
  METHODS
  Questionnaires based on a 2001 Swedish study were sent to prosthodontists and specialist clinics in nine additional countries.
  
  
  RESULTS
  Response rate varied from 53% to 100% in 10 national surveys and should allow careful comparison of results. The relationship between implant overdentures and fixed implant-supported prostheses in treatment of edentulous mandibles varied much; in Sweden, the proportion of overdentures was 12%, whereas it was 93% in The Netherlands. In all countries, the most common reason for choice of the overdenture was reduced cost. In all but two countries, the majority of respondents thought that patients with implant overdentures were equally or more satisfied with overdentures as those with fixed implant-supported prostheses.
  
  
  CONCLUSIONS
  There were great differences among the 10 countries in choice of implant treatment of the edentulous mandible. The relative proportion of mandibular overdentures to fixed prostheses was low in Sweden and Greece and varied from one to two thirds in the other countries, except The Netherlands.
authors.affiliation: Department of Prosthetic Dentistry/Dental Materials Science, Göteborg University, Sweden. g_carlsson@odontologi.gu.se
authors.forename: Gunnar E
authors.initials: GE
authors.lastname: Carlsson
authors.forename: Mats
authors.initials: M
authors.lastname: Kronström
authors.forename: Cees
authors.initials: C
authors.lastname: de Baat
authors.forename: Marco
authors.initials: M
authors.lastname: Cune
authors.forename: David
authors.initials: D
authors.lastname: Davis
authors.forename: Pavlos
authors.initials: P
authors.lastname: Garefis
authors.forename: Seong Joo
authors.initials: SJ
authors.lastname: Heo
authors.forename: Asbjørn
authors.initials: A
authors.lastname: Jokstad
authors.forename: Masarou
authors.initials: M
authors.lastname: Matsuura
authors.forename: Timo
authors.initials: T
authors.lastname: Närhi
authors.forename: Richard
authors.initials: R
authors.lastname: Ow
authors.forename: Argiris
authors.initials: A
authors.lastname: Pissiotis
authors.forename: Hironobu
authors.initials: H
authors.lastname: Sato
authors.forename: George A
authors.initials: GA
authors.lastname: Zarb
mesh_terms: D002170:Canada; D017268:Dental Prosthesis Retention / Q000295:instrumentation; D019094:Dental Prosthesis, Implant-Supported / Q000191:economics / Q000706:statistics & numerical data*; D003828:Denture, Overlay / Q000191:economics / Q000706:statistics & numerical data*; D005387:Finland; D006115:Greece; D006801:Humans; D007564:Japan; D007575:Jaw, Edentulous / Q000534:rehabilitation*; D007723:Korea; D008334:Mandible; D009426:Netherlands; D009664:Norway; D012846:Singapore; D011795:Surveys and Questionnaires; D013548:Sweden; D006113:United Kingdom