title: Immediate nonfunctional loading of NobelPerfect implants in the anterior dental arch in private practice--5-year data.
abstract: BACKGROUND
  The concept of scalloped implants to maintain the natural contour of the alveolar ridge has been a source of controversy for many years.
  
  
  OBJECTIVE
  This study examined the long-term clinical performance of the scalloped NobelPerfect implant in a one-stage procedure (immediate loading in the esthetic zone).
  
  
  METHODS
  In 20 patients, immediate prosthetic restorations were placed on 31 NobelPerfect implants in a private practice and followed for up to 78 months. Twenty-one implants were placed immediately after extraction, seven implants were placed after osseous consolidation of the extraction sockets, and three implants were placed secondary to extended alveolar ridge augmentation procedures. All implants were provisionalized on the day of implant placement and adjusted to clear all contacts in centric occlusion and during eccentric movements. Outcome variables were success rates, marginal bone levels, and pink esthetic score (PES) assessed per implant.
  
  
  RESULTS
  One implant failed after 1.4 months. Five patients with six implants in total were scored in the 5-year follow-up as dropouts. Mean follow-up period of remaining 24 implants was 65 months (range, 55-78 months). Cumulative success rates according to the criteria specified by Smith and Zarb were 96.8%. Marginal bone levels averaged 1.1 mm above the first thread. Mean PES ratings were 10.5 (range, 3-13).
  
  
  CONCLUSIONS
  Survival rates, marginal bone levels, and esthetic results suggest proof of principle for the preservation of the interproximal bony lamella with a scalloped implant design in long-term data.
authors.affiliation: Private practice for Oral Surgery, Lindau/Lake Constance, Germany and research fellow, Department of Oral and Maxillofacial Surgery, University of Mainz, Germany Professor and head of clinic, Department of Oral and Maxillofacial Surgery, University Hospital of Bochum, Germany Consultant, Department of Orthodontics, University Hospital of Mainz, Germany Professor and head of clinic, Department of Oral and Maxillofacial Surgery, University Hospital of Mainz, Germany.
authors.forename: Robert
authors.initials: R
authors.lastname: Noelken
authors.forename: Martin
authors.initials: M
authors.lastname: Kunkel
authors.forename: Britta A
authors.initials: BA
authors.lastname: Jung
authors.forename: Wilfried
authors.initials: W
authors.lastname: Wagner
mesh_terms: D000328:Adult; D003724:Dental Arch; D015921:Dental Implants; D005260:Female; D006801:Humans; D057893:Immediate Dental Implant Loading; D008297:Male; D008875:Middle Aged; D011331:Private Practice; D011475:Prosthesis Failure
chemical_list: D015921:Dental Implants