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Purpose: The aim of the present 5-year follow-up was to clarify the nature of occlusal
support status and radiographic changes in condyles of the elderly, and the association
between these two variables. Materials and Methods: The present study is part of a
comprehensive medical survey of a random sample born in 1904, 1909, and 1914. A
total of 364 subjects living in Helsinki participated in the dental part of the examination
during 1990 to 1991, and after 5 years a total of 103 were reexamined. Comprehensive
data on occlusal support status were available for 94 subjects, and radiographic data
were available for 88 subjects. Occlusal support status was assessed on the basis of the
Eichner index, radiographic changes were assessed from panoramic radiographs, and
symptoms of temporomandibular disorders were assessed using Helkimo’s anamnestic
index. Results: The most frequent radiographic finding in the mandibular joint was
flattening of the articular surface of the condyle associated with osteoarthrosis, found at
baseline in 17% and during follow-up in 13% of the subjects. During the 5-year followup,
Eichner index for natural dentition remained unaltered in 94% of the subjects and in
85% of the subjects when removable dentures were included. There were no
radiographic changes in 92% of the cases. No differences based on age or gender were
found. A logistic regression model revealed associations between the selected baseline
factors. The odds ratio for baseline Helkimo’s anamnestic index was 4.1, 5.7 for Eichner
index with the support of removable dentures, and 356 for radiographic findings.
Conclusion: Radiographic changes in condyles of elderly people were small during the
5-year follow-up, but baseline radiographic findings, Helkimo’s anamnestic index, and
Eichner index with removable dentures were risk factors for radiographic findings at the
end of the follow-up.
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