The Journal of Advanced Prosthodontics

The Korean Academy of Prosthodonitics (대한치과보철학회)
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Standardized multi-institutional data analysis of fixed and removable prosthesis: estimation of life expectancy with regards to variable risk factors

  • Hae-In Jeon (Department of Prosthodontics, College of Dentistry, Yonsei University) ;
  • Joon-Ho Yoon (Department of Prosthodontics, NHIS Ilsan Hospital) ;
  • Jeong Hoon Kim (Department of Prosthodontics, College of Dentistry, Yonsei University) ;
  • Dong-Wook Kim (Department of Information and Statistics, Research Institute of Natural Science, Gyeongsang National University) ;
  • Namsik Oh (Department of Dentistry, School of Medicine, Inha University) ;
  • Young-Bum Park (Department of Prosthodontics, College of Dentistry, Yonsei University)
  • Received : 2023.10.14
  • Accepted : 2024.03.19
  • Published : 2024.04.30
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Abstract

PURPOSE. This study aims to assess and predict lifespan of dental prostheses using newly developed Korean Association of Prosthodontics (KAP) criteria through a large-scale, multi-institutional survey. MATERIALS AND METHODS. Survey was conducted including 16 institutions. Cox proportional hazards model and principal component analysis (PCA) were used to find out relevant factors and predict life expectancy. RESULTS. 1,703 fixed and 815 removable prostheses data were collected and evaluated. Statistically significant factors in fixed prosthesis failure were plaque index and material type, with a median survival of 10 to 18 years and 14 to 20 years each. In removable prosthesis, factors were national health insurance coverage, antagonist type, and prosthesis type (complete or partial denture), with median survival of 10 to 13 years, 11 to 14 years, and 10 to 15 years each. For still-usable prostheses, PCA analysis predicted an additional 3 years in fixed and 4.8 years in removable prosthesis. CONCLUSION. Life expectancy of a prosthesis differed significantly by factors mostly controllable either by dentist or a patient. Overall life expectancy was shown to be longer than previous research.

Keywords

Acknowledgement

This research was supported by Korea Health Technology R&D Project through the Korea Health Indstry Development Institute (KHIDI) and funded by the Ministry of Health and Welfare, Republic of Korea (grant number: HC16C2335).

References

  1. Schwartz NL, Whitsett LD, Berry TG, Stewart JL. Unserviceable crowns and fixed partial dentures: lifespan and causes for loss of serviceability. J Am Dent Assoc 1970;81:1395-401. https://doi.org/10.14219/jada.archive.1970.0398
  2. Foster LV. Failed conventional bridge work from general dental practice: clinical aspects and treatment needs of 142 cases. Br Dent J 1990;168:199-201. https://doi.org/10.1038/sj.bdj.4807133
  3. Valderhaug J. A 15-year clinical evaluation of fixed prosthodontics. Acta Odontol Scand 1991;49:35-40. https://doi.org/10.3109/00016359109041138
  4. Pjetursson BE, Tan K, Lang NP, Bragger U, Egger M, Zwahlen M. A systematic review of the survival and complication rates of fixed partial dentures (FPDs) after an observation period of at least 5 years. Clin Oral Implants Res 2004;15:625-42.
  5. Yoon JH, Park YB, Youn SH, Oh NS. Korea Academy of Prosthodontics criteria for longevity studies of dental prostheses. J Korean Acad Prosthodont 2016;54:341-53. https://doi.org/10.4047/jkap.2016.54.4.341
  6. Nakamura E. The assessment of physiological age based upon a principal component analysis of various physiological variables. J Kyoto Pref Univ Med 1985;94:757-69.
  7. Han KT, Kim DW, Kim SJ, Kim SJ. Biological age is associated with the active use of nutrition data. Int J Environ Res Public Health 2018;15:2431.
  8. Kang YG, Suh E, Lee JW, Kim DW, Cho KH, Bae CY. Biological age as a health index for mortality and major age-related disease incidence in Koreans: National Health Insurance Service - Health screening 11-year follow-up study. Clin Interv Aging 2018;13:429-36. https://doi.org/10.2147/CIA.S157014
  9. Walton JN, Gardner FM, Agar JR. A survey of crown and fixed partial denture failures: length of service and reasons for replacement. J Prosthet Dent 1986;56:416-21. https://doi.org/10.1016/0022-3913(86)90379-3
  10. Sailer I, Feher A, Filser F, Gauckler LJ, Luthy H, Hammerle CH. Five-year clinical results of zirconia frameworks for posterior fixed partial dentures. Int J Prosthodont 2007;20:383-8.
  11. Ali Z, Bhaskar SB. Basic statistical tools in research and data analysis. Indian J Anaesth 2016;60:662-9. https://doi.org/10.4103/0019-5049.190623
  12. Libby G, Arcuri MR, LaVelle WE, Hebl L. Longevity of fixed partial dentures. J Prosthet Dent 1997;78:127-31. https://doi.org/10.1016/S0022-3913(97)70115-X
  13. Sax C, Hammerle CH, Sailer I. 10-year clinical outcomes of fixed dental prostheses with zirconia frameworks. Int J Comput Dent 2011;14:183-202.
  14. Schmitter M, Mussotter K, Rammelsberg P, Gabbert O, Ohlmann B. Clinical performance of long-span zirconia frameworks for fixed dental prostheses: 5-year results. J Oral Rehabil 2012;39:552-7. https://doi.org/10.1111/j.1365-2842.2012.02311.x
  15. Krajicek DD. Why partial dentures fail? Dent Clin North Am 1972;16:145-60. https://doi.org/10.1016/S0011-8532(22)01287-3
  16. Wetherell JD, Smales RJ. Partial denture failures: a long-term clinical survey. J Dent 1980;8:333-40. https://doi.org/10.1016/0300-5712(80)90049-4
  17. Curtis DA, Sharma A, Finzen FC, Kao RT. Occlusal considerations for implant restorations in the partially edentulous patient. J Calif Dent Assoc 2000;28:771-9.