title: Single Restorations in the Resorbed Posterior Mandible Supported by 6-mm Implants: A 1-Year Prospective Case Series Study.
abstract: OBJECTIVE
  The aim of this prospective case series study was to assess the clinical performance of single restorations in the posterior mandible supported by 6-mm implants.
  
  
  METHODS
  Twenty-one consecutive patients with one or more missing premolars or molars in the posterior mandible and with an estimated bone height of 8 mm between the top of the ridge and alveolar nerve were included. Each patient was to receive one or more 6-mm implants (OsseoSpeed 4.0 S, Astra Tech Implant System, Dentsply Implants, Mölndal, Sweden) without any grafting. After a 3-month osseointegration period, the implants were restored with custom-made titanium abutments (Atlantis abutment, Dentsply Implants) and cemented zirconia-based porcelain crowns. Clinical and radiographic examinations were performed at placement of the restoration and 12 months thereafter. Next to this, patients' satisfaction was scored before treatment and after 12 months with the restoration in function.
  
  
  RESULTS
  Implant survival was 100%. From loading to the 12-month follow-up, mean marginal bone loss was 0.14 mm (SD: 0.4). Mean scores for plaque, calculus, gingiva, bleeding, and pocket probing depth were low. Patients' satisfaction was high.
  
  
  CONCLUSIONS
  One-year follow-up data revealed that 6-mm dental implants inserted in the resorbed posterior mandible provide a solid basis for single tooth restoration.
authors.affiliation: Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.|Center for Dental Implants De Mondhoek, Apeldoorn, The Netherlands.
authors.forename: Felix L
authors.initials: FL
authors.lastname: Guljé
authors.affiliation: Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
authors.forename: Gerry M
authors.initials: GM
authors.lastname: Raghoebar
authors.affiliation: Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
authors.forename: Arjan
authors.initials: A
authors.lastname: Vissink
authors.affiliation: Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.|Center for Dentistry and Oral Hygiene, Dental School, Department of Fixed and Removable Prosthodontics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
authors.forename: Henny J A
authors.initials: HJ
authors.lastname: Meijer
mesh_terms: D000328:Adult; D000368:Aged; D003758:Dental Implantation, Endosseous / Q000379:methods*; D019250:Dental Implants, Single-Tooth; D019094:Dental Prosthesis, Implant-Supported / Q000379:methods*; D003793:Dental Restoration, Permanent / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008334:Mandible / Q000601:surgery; D008875:Middle Aged; D011446:Prospective Studies
keywords: posterior mandible; prospective study; short dental implants; single restorations