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KMID : 1004520120280040359
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Journal of Dental Rehabilitation and Applied Science
2012 Volume.28 No. 4 p.359 ~ p.370
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Complication and Failure Analysis of Endodontically Treated Teeth Restored with Post and Cores
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Yun Mi-Jung
Huh Jung-Bo
Kim Mu-Hyon
Jeong Chang-Mo
Jeon Yeong-Chan
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Abstract
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The endodontically treated tooth is generally restored with post and core, owing to the brittle and the loss of large amount
of tooth structure. The purpose of this study was to evaluate the clinical status of fixed prostheses to improve the quality
of dental care. In order to assess the clinical status of fixed prostheses, a total of 101 individuals (aged 30-89, 66 women
and 35 men loaded with 125 fixed prostheses) who treated in the Department of Prosthodontics, Pusan National University
Dental Hospital, between January 1990 to December 2005 were examined. The results of this study were as follows:
1. Length of service of fixed prostheses was 9.7±3.4 years (mean), 11.1 years (median).2. Age and sex of patient was found to have no statistically significant influence on longevity of fixed prostheses (P>.05). 3. Location of fixed prostheses was found to have statistically significant influence on longevity of fixed prostheses (P<.05). The longevity of fixed prostheses was low in anterio-posterior combination region (median:9.2 years). 4. Longevity of fixed prostheses made of base metal ceramic(median:12.0 years) and noble metal ceramic (median:11.3 years) is long (P<.05). 5. Number of units in fixed prostheses was found to have no statistically significant influence on longevity of fixed prostheses (P>.05).
6. Condition of opposing dentition was found to have no statistically significant influence on longevity of fixed prostheses
(P>.05). 7. Dental caries, periapical disease, tooth fracture were frequent complications. In 51.9% of the cases, abutment state after removing fixed prostheses was needed to be extracted.
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KEYWORD
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clinical evaluation, core, fixed prostheses, post
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