Influence of interradicular and palatal placement of orthodontic mini-implants on the success (survival) rate

Head Face Med. 2017 Jun 14;13(1):14. doi: 10.1186/s13005-017-0147-z.

Abstract

Background: The purpose of this retrospective cohort study was to investigate the success rates of orthodontic mini-implants (OMIs) placed in different insertion sites and to analyse patient and site- related factors that influence mini-implant survival.

Methods: Three hundred eighty-seven OMIs were inserted in 239 patients for orthodontic anchorage and were loaded with a force greater than 2 N. Two different insertion sites were compared: 1. buccal inter-radicular and 2. palatal, at the level of the third palatal ruga. Survival was analysed for location and select patient parameters (age, gender and oral hygiene). The level of statistical significance was set at p < 0.05.

Results: The overall success rate was 89.1%. There were statistically significant differences between insertion sites; success rate was 98.4% for OMIs placed in the anterior palate and 71% for OMIs inserted buccal between roots (p < 0.001).

Conclusions: Success rate of OMIs was primarily affected by the insertion site. The anterior palate was a more successful location compared to buccal alveolar bone.

Publication types

  • Comparative Study

MeSH terms

  • Adolescent
  • Anatomic Landmarks
  • Child
  • Cohort Studies
  • Dental Implants*
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Miniaturization
  • Orthodontic Anchorage Procedures / instrumentation*
  • Orthodontic Space Closure / instrumentation
  • Orthodontic Space Closure / methods*
  • Palate, Hard / surgery*
  • Prognosis
  • Retrospective Studies
  • Risk Assessment
  • Treatment Outcome
  • Young Adult

Substances

  • Dental Implants