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Load-Bearing Capacity of Posterior CAD/CAM Implant-Supported Fixed Partial Dentures Fabricated with Different Esthetic Materials

Authors
 Ami Amelya  ;  Jong-Eun Kim  ;  Chang-Woo Woo  ;  Jamiyandorj Otgonbold  ;  Keun-Woo Lee 
Citation
 INTERNATIONAL JOURNAL OF PROSTHODONTICS, Vol.32(2) : 201-204, 2019 
Journal Title
 INTERNATIONAL JOURNAL OF PROSTHODONTICS 
ISSN
 0893-2174 
Issue Date
2019
MeSH
Computer-Aided Design ; Dental Porcelain ; Dental Restoration Failure ; Dental Stress Analysis ; Denture, Partial, Fixed* ; Esthetics, Dental* ; Materials Testing ; Weight-Bearing ; Zirconium
Abstract
PURPOSE: To compare the load-bearing capacity after long-term use (5-year simulation) of posterior three-unit implant-supported fixed partial dentures (FPDs) fabricated with different esthetic materials. MATERIALS AND METHODS: A total of 20 specimens fabricated from one design file using CAD/CAM were divided into four groups: polyetherketoneketone (PEKK) veneered with composite resin (CR); PEKK veneered with lithium disilicate (LD); zirconia veneered with fluorapatite (FA); and monolithic zirconia. Samples were placed into a chewing simulator with simultaneous thermocycling. The fracture load after aging was measured using the universal testing machine with load on the central fossa of the pontic. RESULTS: FPDs fabricated with PEKK + LD had significantly higher fracture load (1,526.56 [SD 95.54] N) compared to PEKK + CR (1,069.54 [SD 67.94] N) (P < .05). FPDs fabricated with zirconia materials had significantly higher fracture load compared to PEKK materials (P < .05). There was no significant difference between monolithic zirconia and zirconia + FA (P > .05). CONCLUSION: FPDs fabricated with PEKK + LD were superior to PEKK + CR. These materials can be promising alternatives for use as implant-supported FPD materials in the high-stress-bearing posterior region. Zirconia + FA can be an alternative to monolithic zirconia in cases that require more esthetics.
Full Text
http://quintpub.com/journals/ijp/abstract.php?iss2_id=1594&article_id=19255#.XendmuQh2mQ
DOI
10.11607/ijp.6128
Appears in Collections:
6. Others (기타) > Gangnam Severance Hospital Health Promotion Center(강남세브란스병원 체크업) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Prosthodontics (보철과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jong Eun(김종은) ORCID logo https://orcid.org/0000-0002-7834-2524
Woo, Chang Woo(우창우)
Lee, Keun Woo(이근우) ORCID logo https://orcid.org/0000-0002-3153-190X
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/173106
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