Complication and Failure Analysis of Endodontically Treated Teeth Restored with Post and Cores

포스트로 수복한 근관 치료된 치아의 임상적 상태에 대한 평가

  • Yun, Mi-Jung (Department of Prosthodontics, School of Dentistry, Pusan National University) ;
  • Kim, Mu-Hyon (Department of Prosthodontics, School of Dentistry, Pusan National University) ;
  • Jeong, Chang-Mo (Department of Prosthodontics, School of Dentistry, Pusan National University) ;
  • Huh, Jung-Bo (Department of Prosthodontics, School of Dentistry, Pusan National University) ;
  • Jeon, Yeong-Chan (Department of Prosthodontics, School of Dentistry, Pusan National University)
  • 윤미정 (부산대학교 치의학전문대학원 보철학교실) ;
  • 김무현 (부산대학교 치의학전문대학원 보철학교실) ;
  • 정창모 (부산대학교 치의학전문대학원 보철학교실) ;
  • 허중보 (부산대학교 치의학전문대학원 보철학교실) ;
  • 전영찬 (부산대학교 치의학전문대학원 보철학교실)
  • Received : 2012.09.25
  • Accepted : 2012.12.25
  • Published : 2012.12.30


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 $9.7{\pm}3.4$ 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.


Supported by : 부산대학교


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