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Göteborgs universitets publikationer

Prevalence of subjects with progressive bone loss at implants.

Författare och institution:
Christer Fransson (Odontologiska institutionen, Avdelningen för parodontologi); Ulf Lekholm (Odontologiska institutionen, Avdelningen för oral och maxillofacial kirurgi); Torsten Jemt (Odontologiska institutionen); Tord Berglundh (Odontologiska institutionen, Avdelningen för parodontologi)
Publicerad i:
Clinical oral implants research, 16 ( 4 ) s. 440-6
Artikel, refereegranskad vetenskaplig
Sammanfattning (abstract):
AIM: The aim of the present study was to assess the prevalence of subjects with progressive bone loss at implants with a function time of at least 5 years. MATERIAL AND METHODS: Radiographs of 1346 patients who had attended annual follow-up visits at the Brånemark Clinic, Public Dental Services, Gothenburg, Sweden were retrieved. Six hundred and sixty-two subjects fulfilled the inclusion criteria. Thus, they all had been provided with implant-supported (Brånemark System) Nobel BioCare, Gothenburg, Sweden) fixed partial or complete dentures or single-tooth replacements with a documented function time in radiographs of at least 5 years. Implants that demonstrated progressive bone loss to a level of > or =3 threads of an implant were detected. The number of subjects who exhibited one or more implants with progressive bone loss to the threshold level was recorded. RESULTS: Twenty-eight percent of 662 included subjects had one or more implants with progressive bone loss. A logistic regression analysis revealed that the individuals in this group carried a significantly larger number of implants than the subjects in whom no implants with progressive loss were detected (6 vs. 4.8). Furthermore, >30% of the subjects in the group with progressive bone loss had > or =3 identified implants and that about 33% of all such implants in this group exhibited extensive bone loss. Out of the total 3413 implants included in the study, 423 implants (12.4%) demonstrated progressive bone loss. CONCLUSION: It is suggested that the prevalence of progressive bone loss at implants assessed from subject-based data is higher than that evaluated from implant-based data.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
Klinisk medicin ->
Adult, Aged, Aged, 80 and over, Alveolar Bone Loss, epidemiology, Dental Implants, statistics & numerical data, Dental Implants, Single-Tooth, statistics & numerical data, Denture, Complete, statistics & numerical data, Denture, Partial, Fixed, statistics & numerical data, Disease Progression, Female, Follow-Up Studies, Humans, Male, Middle Aged, Prevalence, Retrospective Studies, Sweden, epidemiology
Postens nummer:
Posten skapad:
2007-10-17 12:44
Posten ändrad:
2007-10-24 15:41

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