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Volume 22 , Issue 6
November/December 2007

Long-Term Follow-up of Hydroxyapatite-Coated Dental Implants—A Clinical Trial

Abdulaziz Binahmed, BDS, MDent, MSc, FRCD(C)/Andrew Stoykewych, BSC, DMD, Dip OMS/Ali Hussain, DDS/Brock Love, DMD, MS, FACP, FRCD(C)/Vijay Pruthi, DDS, FACD

PMID: 18271378

Purpose: The purpose of this study was to report the long-term (8- to 10-year) results of hydroxyapatite (HA) -coated dental implants and compare them to the 5-year results as well as to long-term results of both HA and titanium dental implants reported in the literature. Materials and Methods: Patients were recruited, screened, and accepted or rejected sequentially based on specific inclusion/exclusion criteria. Implant placement was performed according to the manufacturer’s instructions, followed by prosthetic reconstruction. Routine follow-up examinations were performed for a 5-year period. At 10 years all patients were contacted by mail and invited to participate in a longer-term follow-up of dental implants. All participants provided informed consent and underwent a complete history, including clinical and radiographic examination. The data obtained were statistically analyzed using life tables. Results: A total of 302 implants were placed in 90 patients whose average age was 54.3 years (SD 13.2 years). Of these, 114 implants in 40 patients were examined at 10 years, 88 in the mandible and 26 in the maxilla. The cumulative survival rate was 85.40% in the mandible and 70.59% in the maxilla. The total survival rate was 81.97%. Conclusions: The 10-year success rate of HA-coated dental implants was 82%. The success rate is higher in the mandible as compared to the maxilla. The 10-year results are inferior to the 5-year results. (Clinical Trial) Int J Oral Maxillofac Implants 2007;22: 963–968

Key words: coated implants, dental implants, hydroxyapatite

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