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Clinical use of alumina-toughened zirconia abutments for implant-supported restoration: prospective cohort study of survival analysis
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Seung-Soo | - |
dc.contributor.author | Yeo, In-Sung | - |
dc.contributor.author | Lee, Shin-Jae | - |
dc.contributor.author | Kim, Dae-Joon | - |
dc.contributor.author | Jang, Brian Myeongwoo | - |
dc.contributor.author | Kim, Soo-Hwan | - |
dc.contributor.author | Han, Jung-Suk | - |
dc.creator | 여인성 | - |
dc.date.accessioned | 2013-07-22T04:55:46Z | - |
dc.date.available | 2013-07-22T04:55:46Z | - |
dc.date.issued | 2013-05 | - |
dc.identifier.citation | Clinical Oral Implants Research Vol.24 No.5, pp. 517-522 | - |
dc.identifier.issn | 1600-0501(online) | - |
dc.identifier.issn | 0905-7161(print) | - |
dc.identifier.uri | https://hdl.handle.net/10371/83040 | - |
dc.description.abstract | Objectives: The aim of this prospective cohort study was to compute the long-term clinical survival and complication rates of alumina-toughened zirconia abutments used for implant-supported restorations and to evaluate the effects of several clinical variables on these rates.Material and methods: From May 1998 to September 2010, 213 patients aged 18 years or older were recruited. The patients received 611 external hex implants and 328 implant-supported fixed restorations using alumina-toughened zirconia abutments. During the follow-up, each restorationwas coded as a dental event, which included loosening or fracture of abutment screws, and abutment fracture. From the coded data, the effects of the investigated clinical variables?restored area (anterior/posterior), number of prosthodontic units (one/two units or over), prosthesis type(single-unit/multiunit without pontic/multiunit with pontic), implant system, and patient gender?on the survival of the abutments were evaluated. Survival analysis using Kaplan?Meier method and Cox proportional hazard model was applied. The 5-year survival and complication rates of theabutments were assessed.Results: The number of prosthodontic units and the type of prosthesis had a significant association with complication rates (P < 0.05). Kaplan?Meier survival analysis estimated that the cumulative 5-year complication rate of the abutments used in single restorations was 19.7%. Multiunit-fixed dental prostheses without and with pontics had complication rates of 3.9% and 3.8%, respectively. The 5-year survival rate of the abutments was more than 95%, regardless of the type of prosthesis.Conclusions: Alumina-toughened zirconia abutments are likely to exhibit excellent long-term survival in clinical use for fixed restorations. Single tooth replacement with the abutment at the molar region may require special care and extra attention. | en |
dc.description.abstract | Objectives : The aim of this prospective cohort study was to compute the long-term clinical survival and complication rates of alumina-toughened zirconia abutments used for implant-supported restorations and to evaluate the effects of several clinical variables on these rates.
Material and methods : From May 1998 to September 2010, 213 patients aged 18 years or older were recruited. The patients received 611 external hex implants and 328 implant-supported fixed restorations using alumina-toughened zirconia abutments. During the follow-up, each restoration was coded as a dental event, which included loosening or fracture of abutment screws, and abutment fracture. From the coded data, the effects of the investigated clinical variables—restored area (anterior/posterior), number of prosthodontic units (one/two units or over), prosthesis type (single-unit/multiunit without pontic/multiunit with pontic), implant system, and patient gender—on the survival of the abutments were evaluated. Survival analysis using Kaplan–Meier method and Cox proportional hazard model was applied. The 5-year survival and complication rates of the abutments were assessed. Results : The number of prosthodontic units and the type of prosthesis had a significant association with complication rates (P < 0.05). Kaplan–Meier survival analysis estimated that the cumulative 5-year complication rate of the abutments used in single restorations was 19.7%. Multiunit-fixed dental prostheses without and with pontics had complication rates of 3.9% and 3.8%, respectively. The 5-year survival rate of the abutments was more than 95%, regardless of the type of prosthesis. Conclusions : Alumina-toughened zirconia abutments are likely to exhibit excellent long-term survival in clinical use for fixed restorations. Single tooth replacement with the abutment at the molar region may require special care and extra attention. | - |
dc.description.sponsorship | This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2011-0024170 & R01-2007-000-10977-0). | - |
dc.language.iso | en | en |
dc.publisher | John Wiley & Sons | en |
dc.subject | 의약학 | en |
dc.subject | survival analysis | - |
dc.subject | alumina-toughened zirconia abutment | - |
dc.subject | implant-supported fixed restoration | - |
dc.subject | type of prosthesis | - |
dc.title | Clinical use of alumina-toughened zirconia abutments for implant-supported restoration: prospective cohort study of survival analysis | en |
dc.type | Article | - |
dc.author.alternative | 김승수 | - |
dc.author.alternative | 여인성 | - |
dc.author.alternative | 이신재 | - |
dc.author.alternative | 김대준 | - |
dc.author.alternative | 장명우 | - |
dc.author.alternative | 김수환 | - |
dc.author.alternative | 한정석 | - |
dc.identifier.doi | 10.1111/j.1600-0501.2011.02413.x | - |
dc.citation.journaltitle | Clinical Oral Implants Research | - |
dc.description.srnd | OAIID:oai:osos.snu.ac.kr:snu2013-01/102/2008003883/3 | - |
dc.description.srnd | SEQ:3 | - |
dc.description.srnd | PERF_CD:SNU2013-01 | - |
dc.description.srnd | EVAL_ITEM_CD:102 | - |
dc.description.srnd | USER_ID:2008003883 | - |
dc.description.srnd | ADJUST_YN:N | - |
dc.description.srnd | EMP_ID:A078517 | - |
dc.description.srnd | DEPT_CD:861 | - |
dc.description.srnd | CITE_RATE:2.514 | - |
dc.description.srnd | FILENAME:Clin Oral Implants Res 201305 24(5) 517-22.pdf | - |
dc.description.srnd | DEPT_NM:치의학과 | - |
dc.description.srnd | EMAIL:pros53@snu.ac.kr | - |
dc.description.srnd | SCOPUS_YN:Y | - |
dc.description.srnd | CONFIRM:Y | - |
dc.identifier.srnd | 2013-01/102/2008003883/3 | - |
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