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Prosthetic survival and complication rate of single implant treatment in the periodontally healthy patient after 16 to 22 years of follow-up

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Abstract
Background: Single implants were introduced in the 1980s, but long-term follow-up is scarce. Purpose: The study aims to retrospectively investigate the prosthetic survival and complication rates of single implants in periodontally healthy patients after 16–22 years, and to evaluate the influence of different prosthetic procedures. Materials andMethods: Patients with a single implant were recalled for clinical examination. Prosthetic procedures included single-tooth (ST) and CeraOne (CO) abutments supporting a porcelain-fused-to-metal (PFM), all-ceramic (CER), or gold-acrylic (ACR) crown. Prosthetic survival, success, and occurrence of biological, technical, and aesthetic complications were obtained. Procedures were compared by log-rank tests. Results: Fifty patients attended the examination. All implants were functional; however, 15% of abutments and 27% of crowns had been renewed. Replacements (1/4) were related to technical issues whereas the main cause was aesthetics. The abutment cumulative survival rate (CSR) differed significantly between ST-PFM (74%), ST-ACR (0%), and CO reconstructions (97%). The crown CSR was significantly lower for ST-ACR crowns (0%) compared with ST-PFM (68%) and CO (81%). Thirty-nine percent of implants remained complication free throughout the mean 18.5 years. Complications (1/3) required component replacement, and 53% occurred within 5 years after surgery. Conclusion: Prosthetic survival rates of single implants are encouraging after 16 to 22 years. However, 66% of the patients encountered at least one complication during follow-up.
Keywords
single crowns, prosthetics, long-term, dental implants, complications, LEAST 5 YEARS, FIXED PARTIAL DENTURES, OBSERVATION PERIOD, DENTAL PROSTHESES, SUPPORTED RESTORATIONS, EDENTULOUS JAW, FAILURE RATES, SOFT-TISSUE, CROWNS, FPDS

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Citation

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Chicago
Dierens, Melissa, Hugo De Bruyn, Jenö Kisch, Krister Nilner, Jan Cosyn, and Stefan Vandeweghe. 2016. “Prosthetic Survival and Complication Rate of Single Implant Treatment in the Periodontally Healthy Patient After 16 to 22 Years of Follow-up.” Clinical Implant Dentistry and Related Research 18 (1): 117–128.
APA
Dierens, M., De Bruyn, H., Kisch, J., Nilner, K., Cosyn, J., & Vandeweghe, S. (2016). Prosthetic survival and complication rate of single implant treatment in the periodontally healthy patient after 16 to 22 years of follow-up. CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH, 18(1), 117–128.
Vancouver
1.
Dierens M, De Bruyn H, Kisch J, Nilner K, Cosyn J, Vandeweghe S. Prosthetic survival and complication rate of single implant treatment in the periodontally healthy patient after 16 to 22 years of follow-up. CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH. 2016;18(1):117–28.
MLA
Dierens, Melissa, Hugo De Bruyn, Jenö Kisch, et al. “Prosthetic Survival and Complication Rate of Single Implant Treatment in the Periodontally Healthy Patient After 16 to 22 Years of Follow-up.” CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH 18.1 (2016): 117–128. Print.
@article{5755718,
  abstract     = {Background: Single implants were introduced in the 1980s, but long-term follow-up is scarce.
Purpose: The study aims to retrospectively investigate the prosthetic survival and complication rates of single implants in periodontally healthy patients after 16--22 years, and to evaluate the influence of different prosthetic procedures.
Materials andMethods: Patients with a single implant were recalled for clinical examination. Prosthetic procedures included single-tooth (ST) and CeraOne (CO) abutments supporting a porcelain-fused-to-metal (PFM), all-ceramic (CER), or gold-acrylic (ACR) crown. Prosthetic survival, success, and occurrence of biological, technical, and aesthetic complications were obtained. Procedures were compared by log-rank tests.
Results: Fifty patients attended the examination. All implants were functional; however, 15\% of abutments and 27\% of crowns had been renewed. Replacements (1/4) were related to technical issues whereas the main cause was aesthetics. The abutment cumulative survival rate (CSR) differed significantly between ST-PFM (74\%), ST-ACR (0\%), and CO reconstructions (97\%). The crown CSR was significantly lower for ST-ACR crowns (0\%) compared with ST-PFM (68\%) and CO (81\%). Thirty-nine percent of implants remained complication free throughout the mean 18.5 years. Complications (1/3) required component replacement, and 53\% occurred within 5 years after surgery.
Conclusion: Prosthetic survival rates of single implants are encouraging after 16 to 22 years. However, 66\% of the patients encountered at least one complication during follow-up.},
  author       = {Dierens, Melissa and De Bruyn, Hugo and Kisch, Jen{\"o} and Nilner, Krister and Cosyn, Jan and Vandeweghe, Stefan},
  issn         = {1523-0899},
  journal      = {CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH},
  keyword      = {single crowns,prosthetics,long-term,dental implants,complications,LEAST 5 YEARS,FIXED PARTIAL DENTURES,OBSERVATION PERIOD,DENTAL PROSTHESES,SUPPORTED RESTORATIONS,EDENTULOUS JAW,FAILURE RATES,SOFT-TISSUE,CROWNS,FPDS},
  language     = {eng},
  number       = {1},
  pages        = {117--128},
  title        = {Prosthetic survival and complication rate of single implant treatment in the periodontally healthy patient after 16 to 22 years of follow-up},
  url          = {http://dx.doi.org/10.1111/cid.12266},
  volume       = {18},
  year         = {2016},
}

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