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Related Experiment Videos

HA-coated implants: warranted or not?

J L Lozada1, R A James, M Boskovic

  • 1Oral Implantology, Restorative Dentistry, Loma Linda University School of Dentistry, California.

Compendium (Newtown, Pa.). Supplement
|January 1, 1993
PubMed
Summary
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Hydroxyapatite (HA)-coated dental implants demonstrate high survival rates, with over 97% success after 7 years. Factors like oral hygiene, not just implant type, influence failure rates.

Area of Science:

  • Dental Implantology
  • Biomaterials Science

Background:

  • Hydroxyapatite (HA)-coated implants have faced scrutiny regarding their long-term survivability.
  • Clinical experience is crucial for evaluating implant performance beyond anecdotal evidence.

Purpose of the Study:

  • To analyze the 9-year clinical outcomes of hydroxyapatite (HA)-coated dental implants.
  • To compare the survival rates of HA-coated implants with uncoated implants in specific bone types.

Main Methods:

  • Retrospective analysis of HA-coated custom and stock blade-form implants placed over 9 years.
  • Evaluation of survival rates at 5 and 7 years for various implant types and locations.
  • Comparison of failure rates between HA-coated and uncoated implants in maxillary type 4 bone.

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Main Results:

  • HA-coated custom and stock blade-form implants achieved a 97% survival rate after 7 years.
  • Upper HA-coated root form implants showed a 98% survival rate at 5 years; lower jaw implants had a 99% survival rate.
  • HA-coated implants in maxillary type 4 bone had a 14.9% failure rate, significantly lower than uncoated implants (32.6%).

Conclusions:

  • Hydroxyapatite (HA)-coated dental implants exhibit favorable long-term survival rates.
  • Implant success is influenced by factors beyond coating, including surgical technique and patient hygiene.
  • HA coating appears to improve implant survival, particularly in challenging bone conditions like maxillary type 4 bone.