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Long‐term changes in marginal and periapical periodontal conditions in patients with fixed prostheses: a radiographic study
Author(s) -
Swartz B.,
Svenson B.,
Palmqvist S.
Publication year - 1996
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1111/j.1365-2842.1996.tb01217.x
Subject(s) - dentistry , radiodensity , medicine , radiography , orthodontics , surgery
summary Patients treated at a prosthodontic department during the years 1968–73 with fixed restorations (at least five units) were followed up in 1991–92. The aim of the present study was to compare marginal and periapical periodontal conditions on radiographs from 1968–73 and 1991–92 and relate the changes to the results of the prosthodontic treatment. In the group in which the restorations remained unchanged, 90% of the abutments that were not root filled and showed no periapical radiolucency when the restorations were placed, were still not root filled and showed no periapical radiolucency at the follow‐up examination. The corresponding figure for the group in which the restorations had been replaced was only 69%. The changes in marginal bone levels also differed between the groups. In the group with remaining restorations, 66% of the surfaces were given the same score on a five‐point scale both in 1968–73 and in 1991–92. In the other group, only 54% were scored the same on both occasions. Thus, unfavourable changes in both periapical and marginal periodontal conditions were associated with poorer results for the fixed restorations.