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CC BY 4.0 · European Journal of General Dentistry 2022; 11(02): 073-080
DOI: 10.1055/s-0042-1744207
Review Article

Influence of the Type and Thickness of Cervical Margins on the Strength of Posterior Monolithic Zirconia Crowns: A Review

Camille Haddad 
1   Department of Prosthodontics and Occlusion, Faculty of Dentistry, Saint Joseph University, Beirut, Lebanon
,
Kathy Azzi
2   Department of Prosthodontics and Restorative Dentistry, Faculty of Dentistry, Saint Joseph University, Beirut, Lebanon
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Abstract

The aim of this research is to review the literature for the influence of the thickness and shape of cervicalmargins on the strength of posterior monolithic zirconia crowns. Studies to assess the fracture resistance of monolithic zirconia crowns with different types of cervical margins, published from 2014 to 2020, were searched using the electronic database PubMed and Google Scholar using the following keywords: “monolithic zirconia,” “translucent,” “shoulderless,” and “margin preparation design.” Analysis of studies has shown that overall the design of the margin would have a significant effect on the strength of these crowns. Monolithic zirconia crowns with a knife-edge margin have shown a breaking load higher than the maximum chewing force of humans. It would be safe to suggest the utilization of posteriormonolithic zirconia crowns with vertical preparation. As the new translucent monolithic zirconia crowns are recent, further studies would be needed to guide the selection of the appropriate minimum thickness of the knife-edge margin to meet the clinical guidelines for their use.

Keywords

margin preparation design - monolithic zirconia - shoulderless - translucent


Publication History

Article published online:
17 May 2022

© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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  • References

  • 1 Zhang F, Inokoshi M, Batuk M. et al. Strength, toughness and aging stability of highly-translucent Y-TZP ceramics for dental restorations. Dent Mater 2016; 32 (12) e327-e337
    CrossrefPubMedGoogle Scholar
  • 2 Vagkopoulou T, Koutayas SO, Koidis P, Strub JR. Zirconia in dentistry: Part 1. Discovering the nature of an upcoming bioceramic. Eur J Esthet Dent 2009; 4 (02) 130-151
    PubMedGoogle Scholar
  • 3 Chevalier J, Gremillard L. 1.106 - Zirconia as a Biomaterial. In: Ducheyne P. ed. Comprehensive Biomaterials. Elsevier; 2011: 95-108 DOI: 10.1016/B978-0-08-055294-1.00017-9
    CrossrefGoogle Scholar
  • 4 Tinschert J, Natt G, Mohrbotter N, Spiekermann H, Schulze KA. Lifetime of alumina- and zirconia ceramics used for crown and bridge restorations. J Biomed Mater Res B Appl Biomater 2007; 80 (02) 317-321
    CrossrefPubMedGoogle Scholar
  • 5 Haddad CM, Meyer J-M, El Ahmadié M. Influence of the connector area on the chipping rate of the VM9 veneering ceramic in a posterior four-unit yttria-stabilized tetragonal zirconia polycrystal fixed dental prostheses: a pilot Study. Eur J Gen Dent 2021; 10 (03) 144-150 DOI: 10.1055/s-0041-1736373.
    Article in Thieme ConnectGoogle Scholar
  • 6 Zhang Y, Lawn BR. Novel zirconia materials in dentistry. J Dent Res 2018; 97 (02) 140-147
    CrossrefPubMedGoogle Scholar
  • 7 Prime - Ivoclar Vivadent - PDF Catalogs | Technical Documentation. https://pdf.medicalexpo.com/pdf/ivoclar-vivadent/prime/72878-215193-_9.html Accessed February 16, 2022
    Google Scholar
  • 8 Shillingburg HT, Stone SE. Fundamentals of Fixed Prosthodontics. 4th ed. Quintessence Pub; 2012
    Google Scholar
  • 9 Rosenstiel SF, Land MF, Fujimoto J. Contemporary Fixed Prosthodontics. 5th ed. Elsevier Health Sciences Division; 2015
    PubMedGoogle Scholar
  • 10 Pagani C. Tooth Preparations: Science & Art. Quintessence Publishing; 2017
    Google Scholar
  • 11 Al-Zubaidi Z, Al-Shamma A. The effect of different finishing lines on the marginal fitness of full contour zirconia and glass ceramic CAD/CAM crowns (an in-vitro study). J Dent Mater Tech 2015; 4 DOI: 10.22038/jdmt.2015.4595.
    CrossrefGoogle Scholar
  • 12 Vallata A. Les limites cervicales en prothèse fixée: concepts et préceptes. (Undergraduate thesis). Nancy: Henri Poincaré-Nancy I University; 2011
    PubMedGoogle Scholar
  • 13 Comlekoglu M, Dundar M, Ozcan M, Gungor M, Gokce B, Artunc C. Influence of cervical finish line type on the marginal adaptation of zirconia ceramic crowns. Oper Dent 2009; 34 (05) 586-592
    CrossrefPubMedGoogle Scholar
  • 14 Weigl P, Sander A, Wu Y, Felber R, Lauer HC, Rosentritt M. In-vitro performance and fracture strength of thin monolithic zirconia crowns. J Adv Prosthodont 2018; 10 (02) 79-84
    CrossrefPubMedGoogle Scholar
  • 15 Findakly MB, Jasim HH. Influence of preparation design on fracture resistance of different monolithic zirconia crowns: a comparative study. J Adv Prosthodont 2019; 11 (06) 324-330
    CrossrefPubMedGoogle Scholar
  • 16 Kasem AT, Sakrana AA, Ellayeh M, Özcan M. Evaluation of zirconia and zirconia-reinforced glass ceramic systems fabricated for minimal invasive preparations using a novel standardization method. J Esthet Restor Dent 2020; 32 (06) 560-568
    CrossrefPubMedGoogle Scholar
  • 17 Jasim HH, Findakly MB, Mahdi NA, Mutar MT. Effect of reduced occlusal thickness with two margin designs on fracture resistance of monolithic zirconia crowns. Eur J Dent 2020; 14 (02) 245-249
    Article in Thieme ConnectPubMedGoogle Scholar
  • 18 Mitov G, Anastassova-Yoshida Y, Nothdurft FP, von See C, Pospiech P. Influence of the preparation design and artificial aging on the fracture resistance of monolithic zirconia crowns. J Adv Prosthodont 2016; 8 (01) 30-36
    CrossrefPubMedGoogle Scholar
  • 19 Abdulazeez MI, Majeed MA. Fracture strength of monolithic zirconia crowns with modified vertical preparation: a comparative in vitro study. Eur J Dent 2022; 16 (01) 209-214 DOI: 10.1055/s-0041-1735427.
    Article in Thieme ConnectPubMedGoogle Scholar
  • 20 Al-Joboury AIK, Zakaria MR. An evaluation of the influence of different finishing lines on the fracture strength of full contour zirconia CAD/CAM and heat press all-ceramic crowns. J Baghdad Coll Dent 2015;27(01): Accessed February 16, 2022 https://www.iasj.net/iasj/article/101508
    Google Scholar
  • 21 Alzahrani AM, Beyari AM, Emam ZN. The influence of the cervical finish line designs on the fracture resistance of CAD/CAM monolithic zirconia crowns: an in vitro study. Int J Health Sci Res 2018; 8 (02) 101-110
    Google Scholar
  • 22 Nakamura K, Harada A, Inagaki R. et al. Fracture resistance of monolithic zirconia molar crowns with reduced thickness. Acta Odontol Scand 2015; 73 (08) 602-608
    CrossrefPubMedGoogle Scholar
  • 23 Juntavee N, Kornrum S. Effect of marginal designs on fracture strength of high translucency monolithic zirconia crowns. Int J Dent 2020; 2020: 8875609 DOI: 10.1155/2020/8875609.
    CrossrefPubMedGoogle Scholar
  • 24 Sakaguchi RL, Powers JM. Eds. Restorative materials ceramics. In: Craig's Restorative Dental Materials,13th ed. Mosby; 2012: 253-275
    Google Scholar
  • 25 Skjold A, Schriwer C, Øilo M. Effect of margin design on fracture load of zirconia crowns. Eur J Oral Sci 2019; 127 (01) 89-96
    CrossrefPubMedGoogle Scholar
  • 26 Stack J, Millar BJ. Analysis of posterior zirconia crowns with vertical margin preparations. Eur J Prosthodont Restor Dent 2022; 30 (01) 55-64 DOI: 10.1922/EJPRD_2097Millar10.
    CrossrefPubMedGoogle Scholar