A 7-year prospective radiographic evaluation of marginal bone level around two different implant systems: a randomized clinical trial.
Clin Oral Implants Res
; 26(11): 1244-9, 2015 Nov.
Article
em En
| MEDLINE
| ID: mdl-24995411
ABSTRACT
OBJECTIVE:
The aim of this study was to evaluate the change in marginal bone level radiographically around two different implant systems after 7 years of use. MATERIAL ANDMETHODS:
Twenty fully edentulous patients were included in the study and randomly assigned to two treatment groups of machined surface implants (Brånemark, n = 40) and rough-surface implants (Xive, n = 40). The implants were early loaded with individual bar-retained overdentures. All patients were treated by the same surgeon and the same prosthodontist. Clinical and radiographic examinations were conducted at the time of implant loading (baseline) and annually for up to 7 years of use. Measurements to the nearest 0.1 mm were taken at the mesial and distal site, and the average values were calculated for each implant. A three-level mixed-effect analysis of covariance (ANOVA) was used to test the significance of the mean marginal bone change in the two implant groups.RESULTS:
The study population consisted of 15 women (75%) and five men (25%) with an average age of 61.6 years. A total of 79 of 80 implants integrated successfully. n = 1 Brånemark implant failed after 3 weeks. There was a significant difference (P < 0.001) between the two implant systems at the baseline measurements (0.14 mm Brånemark vs. 0.39 mm Xive) and a highly significant difference for the annual bone loss (0.07 mm [Brånemark] vs. 0.18 mm [Xive], P < 0.001).CONCLUSION:
Both the implant systems are clinically satisfying. Nevertheless, the Brånemark group showed a better radiological performance than the Xive group.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Radiografia
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Implantes Dentários
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Perda do Osso Alveolar
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Implantação Dentária
Tipo de estudo:
Clinical_trials
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Diagnostic_studies
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Observational_studies
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Prognostic_studies
Limite:
Adult
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Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article