PMID- 37754898
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20231003
IS  - 2079-4983 (Print)
IS  - 2079-4983 (Electronic)
IS  - 2079-4983 (Linking)
VI  - 14
IP  - 9
DP  - 2023 Sep 21
TI  - Crack Propagation and Fatigue Performance of Partial Posterior Indirect 
      Restorations: An Extended Finite Element Method Study.
LID - 10.3390/jfb14090484 [doi]
LID - 484
AB  - Dental ceramics are susceptible to slow, progressive crack growth after cyclic 
      loading. The purpose of this study was to investigate the progressive patterns of 
      cracks in two different types of CAD/CAM ceramic materials used with three 
      different partial posterior indirect restoration (PPIR) designs and to determine 
      the materials' failure risk using a fatigue test. Standard initial cracks were 
      formed in Standard Tessellation Language (STL) files prepared for three different 
      PPIRs. The materials chosen were monolithic lithium disilicate (LS) and 
      polymer-infiltrated ceramic networks (PICNs). The extended finite element method 
      (XFEM) was applied, and the fatigue performance was examined by applying a 600 N 
      axial load. The cracks propagated the most in onlay restorations, where the 
      highest displacement was observed. In contrast, the most successful results were 
      observed in overlay restorations. Overlay restorations also showed better fatigue 
      performance. LS materials exhibited more successful results than PICN materials. 
      LS materials, which can be used in PPIRs, yield better results compared to PICN 
      materials. While inlay restorations demonstrated relatively successful results, 
      overlay and onlay restorations can be specified as the most and the least 
      successful PPIR types, respectively.
FAU - Demirel, Mehmet Gokberkkaan
AU  - Demirel MG
AUID- ORCID: 0000-0002-6599-1074
AD  - Department of Prosthodontics, Faculty of Dentistry, Necmettin Erbakan University, 
      Konya 42090, Turkey.
FAU - Mohammadi, Reza
AU  - Mohammadi R
AUID- ORCID: 0000-0002-4506-8506
AD  - Faculty of Dentistry, Necmettin Erbakan University, Konya 42090, Turkey.
FAU - Kececi, Murat
AU  - Kececi M
AUID- ORCID: 0000-0001-5361-8638
AD  - Department of Prosthodontics, Faculty of Dentistry, Karamanoglu Mehmet Bey 
      University, Karaman 70000, Turkey.
LA  - eng
PT  - Journal Article
DEP - 20230921
PL  - Switzerland
TA  - J Funct Biomater
JT  - Journal of functional biomaterials
JID - 101570734
PMC - PMC10532640
OTO - NOTNLM
OT  - CAD-CAM restorations
OT  - an extended finite element method
OT  - dental digital technologies
OT  - prosthodontics
COIS- The authors declare no conflict of interest.
EDAT- 2023/09/27 12:42
MHDA- 2023/09/27 12:43
PMCR- 2023/09/21
CRDT- 2023/09/27 09:23
PHST- 2023/08/30 00:00 [received]
PHST- 2023/09/13 00:00 [revised]
PHST- 2023/09/18 00:00 [accepted]
PHST- 2023/09/27 12:43 [medline]
PHST- 2023/09/27 12:42 [pubmed]
PHST- 2023/09/27 09:23 [entrez]
PHST- 2023/09/21 00:00 [pmc-release]
AID - jfb14090484 [pii]
AID - jfb-14-00484 [pii]
AID - 10.3390/jfb14090484 [doi]
PST - epublish
SO  - J Funct Biomater. 2023 Sep 21;14(9):484. doi: 10.3390/jfb14090484.