A comparative clinical study of three different endosseous implants in edentulous mandibles
| Autor: | A K, Røynesdal, E, Ambjørnsen, S, Støvne, H R, Haanaes |
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| Rok vydání: | 1998 |
| Předmět: |
Aged
80 and over Dental Implants Male Titanium Analysis of Variance Surface Properties Dental Implantation Endosseous Dental Abutments Mandible Denture Overlay Prognosis Durapatite Treatment Outcome Dental Prosthesis Design Osseointegration Humans Jaw Edentulous Female Mandibular Diseases Dental Prosthesis Implant-Supported Bone Resorption Aged Follow-Up Studies |
| Zdroj: | The International journal of oralmaxillofacial implants. 13(4) |
| ISSN: | 0882-2786 |
| Popis: | The purpose of this prospective study was to investigate the clinical outcome and marginal bone resorption of three different endosseous implants placed in the anterior mandibles of 15 elderly patients. Eleven women and 4 men (ranging from 65 to 80 years, mean 71 years) had three different endosseous implants placed in the anterior mandible; one titanium plasma-sprayed cylinder implant (4-mm diameter), one titanium cylinder implant with hydroxyapatite coating (4-mm diameter), and one standard threaded titanium implant (3.75-mm diameter). Three months later, at the second-stage surgical procedure, ball abutments were connected and an overdenture was placed. At 12, 24, and 36 months, marginal bone resorption and Periotest values were recorded. None of the implants was lost in this period. An analysis of variance with repeated measurement was performed annually to test the existence of significant differences between the implants. When differences appeared, paired t tests were used to identify which differences were significant. Bonferroni multipliers were used to adjust for multiple testing. When marginal bone resorption was concerned, threaded titanium and hydroxyapatite-coated implants had significantly better scores than titanium plasma-sprayed cylinder implants. Periotest values for hydroxyapatite-coated implants were significantly better than test values for the other implants after 2 years. After 3 years significance was obtained between hydroxyapatite and screw-shaped implants only (P.05). It was concluded that titanium plasma-sprayed cylinder implants have a less favorable prognosis than the other implants used in this study. |
| Databáze: | OpenAIRE |
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