The use of angulated abutments in implant dentistry: five-year clinical results of an ongoing prospective study

Int J Oral Maxillofac Implants. 2000 Nov-Dec;15(6):801-10.

Abstract

A total of 2,261 2-stage implants was placed in 467 patients in combination with angled abutments ranging from 0 to 45 degrees. These were observed over a period of up to 96 months, with a mean observation time of 28.8 months. Single and multiple teeth were replaced and restored using angled abutments. For patients who contributed multiple survival data, the data were considered dependent. Therefore, a mean survival estimation was performed. With a certainty of 95%, an estimated mean survival rate better than 98.6% after a 5-year observation period was calculated. The statistical comparison of 2 independent, randomized implant groups (with abutments angled between 0 and 15 degrees and between 20 and 45 degrees) by means of a log-rank test showed a probability of 0.84 (P value) that the survival functions are the same for both groups. Good esthetic and functional outcomes were observed.

Publication types

  • Clinical Trial
  • Comparative Study
  • Randomized Controlled Trial

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Dental Abutments*
  • Dental Implantation, Endosseous* / adverse effects
  • Dental Implants* / adverse effects
  • Dental Implants, Single-Tooth
  • Dental Prosthesis Design*
  • Dental Prosthesis, Implant-Supported
  • Dental Restoration Failure
  • Esthetics, Dental
  • Female
  • Follow-Up Studies
  • Humans
  • Jaw, Edentulous / rehabilitation
  • Jaw, Edentulous / surgery
  • Linear Models
  • Male
  • Mandible / surgery
  • Maxilla / surgery
  • Middle Aged
  • Osteotomy / methods
  • Postoperative Complications
  • Probability
  • Prospective Studies
  • Survival Analysis
  • Treatment Outcome

Substances

  • Dental Implants