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J Clin Periodontol. 1975 Apr;2(2):53-66. Related Articles, Links
The role of occlusion for the stability of fixed bridges in patients with
reduced periodontal tissue support.
Nyman S, Lindhe J, Lundgren D.
The present investigation reports how occlusion may be utilized to establish
and maintain stability of fixed bridges in patients with markedly reduced
periodontal tissue support. The material consisted of 20 adult patients,
aged 27-69, with advanced periodontal breakdown, often in combination with
extensive loss of teeth. After periodontal treatment, the patients were
rehabilitated with fixed bridges, whose stability was evaluated once a year
for 2 to 6 years. The results show that permanent stability of
bridgework can be obtained in patients where there is a minimum of remaining
periodontal tissue support, even in combination with marked hypermobility of
individual abutment teeth. The stability was achieved by proper treatment of
the diseased periodontal tissues, and by establishment of stable occlusion in
the intercuspal position. When there was a risk of bridge mobility on
excursive movements of the mandible, balancing contacts were established for
the prevention of migration, tilting and increasing
mobility. The study also shows that cantilever pontics can be used to achieve
and maintain the stability of fixed bridgework.
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