FRACTURE RESISTANCE OF CEMENTED AND INTEGRATED CERAMIC CROWNS SUPPORTED ON ZIRCONIA IMPLANT ABUTMENTS (IN VITRO STUDY)
Mounir, C., Shalaby, Y., Al-Abbassy, F. (2021). FRACTURE RESISTANCE OF CEMENTED AND INTEGRATED CERAMIC CROWNS SUPPORTED ON ZIRCONIA IMPLANT ABUTMENTS (IN VITRO STUDY). EKB Journal Management System, 46(Issue 2), 106-112. doi: 10.21608/adjalexu.2020.21315.1030
Catherine A. Mounir; Yousreya A. Shalaby; Fayza H. Al-Abbassy. "FRACTURE RESISTANCE OF CEMENTED AND INTEGRATED CERAMIC CROWNS SUPPORTED ON ZIRCONIA IMPLANT ABUTMENTS (IN VITRO STUDY)". EKB Journal Management System, 46, Issue 2, 2021, 106-112. doi: 10.21608/adjalexu.2020.21315.1030
Mounir, C., Shalaby, Y., Al-Abbassy, F. (2021). 'FRACTURE RESISTANCE OF CEMENTED AND INTEGRATED CERAMIC CROWNS SUPPORTED ON ZIRCONIA IMPLANT ABUTMENTS (IN VITRO STUDY)', EKB Journal Management System, 46(Issue 2), pp. 106-112. doi: 10.21608/adjalexu.2020.21315.1030
Mounir, C., Shalaby, Y., Al-Abbassy, F. FRACTURE RESISTANCE OF CEMENTED AND INTEGRATED CERAMIC CROWNS SUPPORTED ON ZIRCONIA IMPLANT ABUTMENTS (IN VITRO STUDY). EKB Journal Management System, 2021; 46(Issue 2): 106-112. doi: 10.21608/adjalexu.2020.21315.1030

FRACTURE RESISTANCE OF CEMENTED AND INTEGRATED CERAMIC CROWNS SUPPORTED ON ZIRCONIA IMPLANT ABUTMENTS (IN VITRO STUDY)

Alexandria Dental Journal
Article 5, Volume 46, Issue 2, August 2021, Page 106-112  XML PDF (1.19 MB)
Document Type: Original Article
DOI: 10.21608/adjalexu.2020.21315.1030
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Authors
Catherine A. Mounir email 1; Yousreya A. Shalaby2; Fayza H. Al-Abbassy3
1Fixed prosthodontics, dental faculty, pharos university
2Professor of Fixed Prosthodontics, Conservative Dentistry, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.
3Professor of Dental Biomaterials, Department of Dental Biomaterials, Faculty of Dentistry, Alexandria University, Egypt.
Abstract
Introduction: Even-though the demand for esthetics amplified the popularity of all-ceramic restorations, failures are reported at the interface between zirconia core and ceramic-veneer.
Objectives: Comparing fracture resistance and mode of failure of cemented and integrated ceramic crowns supported on zirconia implant abutments.
Materials and Methods: Cast having missing upper first premolar; was chosen. Silicone mold was made to duplicate fifteen polyurethane models. Clear surgical guide was fabricated for precise insertion of implant analogue. Models were divided into three groups (n=5). Group I (cemented crowns) Group II(integrated crowns with composite plug) Group III(integrated crowns with ceramic plug). Group I: Optical impression of zironia abutment was made then crowns were designed, milled, crystallized, and glazed. Then crowns were cemented using resin cement. Group II and III crowns were constructed using same technique as Group I but with 2 mm occlusal hole. CAD-on was used to join crowns onto abutments. Group II screw-holes were closed using composite resin, while Group III screw holes were scanned, designed, milled using Emax-CAD, then cemented using resin cement. Specimens were subjected to cyclic loading machine for 120,000 cycles, then attached to universal testing machine by cross-head speed (0.5mm/min). Specimens were examined using stereomicroscope and scanning electron microscope.
Results: Highest mean fracture load value was GroupI (901.4±54.90)N followed by Group II (790.7±187.4)N then Group III (621.5±97.42)N. Only Group I and III showed significant difference.(P2*=0.011)
Conclusions: Cemented crowns showed significant superior fracture resistance than integrated crowns with ceramic plug, and no significant difference with integrated crowns with composite plug.
Keywords
Zirconia abutment; CAD-on; E-max; fracture resistance
References
REFERENCES

  1. Andersson B, Odman P, Lindvall AM, Brånemark PI. Surgical and prosthodontic training of general practitioners for single tooth implants: a study of treatments performed at four general practitioners' offices and at a specialist clinic after 2 years. J Oral Rehabil. 1995; 22:543-8.
  2. Abduo J, Lyons K. Rationale for the use of CAD/CAM technology in implant prosthodontics. Int J Dent. 2013; 2013:768121.
  3. Andersson B, Odman P, Lindvall AM, Brånemark PI. Five-year prospective study of prosthodontic and surgical single-tooth implant treatment in general practices and at a specialist clinic. Int J Prosthodont. 1998;11:351-5.
  4. Campbell WF, Herman MW. Choosing Between Screw-Retained and Cement-Retained Implant Crowns. Inclusive Restor Driven Implant Solut 2011;2:20-6.
  5. Sheets JL, Wilcox C, Wilwerding T. Cement selection for cement‐retained crown technique with dental implants. J Prosthodont. 2008;17:92-6.
  6. Misch CE. The Esthetic—Health Compromise in Implant Dentistry. Implant Dent. 1997;6:42.
  7. Goodacre CJ, Bernal G, Rungcharassaeng K, Kan JY. Clinical complications with implants and implant prostheses. J Prosthet Dent. 2003; 90:121-32.
  8. Weber HP, Kim DM, Ng MW, Hwang JW, Fiorellini JP. Peri‐implant soft‐tissue health surrounding cement‐and screw‐retained implant restorations: a multi‐center, 3‐year prospective study. Clin Oral Implants Res. 2006; 17:375-9.
  9. Guess PC. Effect of veneering techniques on damage and reliability of Y-TZP trilayers. Eur J Esthet Dent. 2009; 4:262-76.
  10. Christensen RP, Ploeger BJ. A clinical comparison of zirconia, metal and alumina fixed-prosthesis frameworks veneered with layered or pressed ceramic: a three-year report. J Am Dent Assoc. 2010;141:1317-29.
  11. Stawarczyk B, Özcan M, Roos M, Trottmann A, Sailer I, Hämmerle CH. Load-bearing capacity and failure types of anterior zirconia crowns veneered with overpressing and layering techniques. Dent Mater. 2011;27:1045-53.
  12. Roberts M. Strategies for integrating new restorative materials with digital technology and sound restorative principles. Compend Contin Educ Dent. 2013;34:52-7.
  13. De Jager N, Pallav P, Feilzer AJ. The influence of design parameters on the FEA-determined stress distribution in CAD–CAM produced all-ceramic dental crowns. Dent Mater. 2005;21:242-51.
  14. Rosentritt M, Steiger D, Behr M, Handel G, Kolbeck C. Influence of substructure design and spacer settings on the in vitro performance of molar zirconia crowns. J Dent. 2009;37:978-83.
  15. Fischer J, Stawarzcyk B, Trottmann A, Hämmerle CH. Impact of thermal misfit on shear strength of veneering ceramic/zirconia composites. Dent Mater. 2009;25:419-23.
  16. Rues S, Kröger E, Müller D, Schmitter M. Effect of firing protocols on cohesive failure of all-ceramic crowns. J Dent. 2010;38:987-94.
  17. Guazzato M, Walton TR, Franklin W, Davis G, Bohl C, Klineberg I. Influence of thickness and cooling rate on development of spontaneous cracks in porcelain/zirconia structures. Aust Dent J. 2010;55:306-10.
  18. Raigrodski AJ, Hillstead MB, Meng GK, Chung KH. Survival and complications of zirconia-based fixed dental prostheses: a systematic review. J Prosthet Dent. 2012;107:170-7.
  19. Wadhwani C, Pineyro A, Avots J. An Esthetic Solution to the Screw‐Retained Implant Restoration: Introduction to the Implant Crown Adhesive Plug: Clinical Report. J Esthet Restor Dent. 2011;23:138-43.
  20. Kelly JR, Rungruanganunt P, Hunter B, Vailati F. Development of a clinically validated bulk failure test for ceramic crowns. J Prosthet Dent. 2010;104:228-38.
  21. Basso GR, Moraes RR, Borba M, Griggs JA, Della Bona A. Flexural strength and reliability of monolithic and trilayer ceramic structures obtained by the CAD-on technique. Dent Mater. 2015;31:1453-9.
  22. Burke FT. Fracture resistance of teeth restored with dentin-bonded crowns constructed in a leucite-reinforced ceramic. Dent Mater. 1999;15:359-62.
  23. Scherrer SS, Cesar PF, Swain MV. Direct comparison of the bond strength results of the different test methods: a critical literature review. Dent Mater. 2010;26:e78-93.
  24. Vogel RC. CE 2-Implant Overdentures: A new standard of care for edentulous patients--current concepts and techniques. Compendium. 2008;29:270.
  25. McLaren EA, Cao PT. Ceramics in dentistry—part I: classes of materials. Inside Dent. 2009;5:94-103.
  26. Nossair SA, Aboushelib MN, Morsi TS. Fracture and Fatigue Resistance of Cemented versus Fused CAD‐on Veneers over Customized Zirconia Implant Abutments. J Prosthodont. 2015;24:543-8.
  27. Della Bona A, Mecholsky Jr JJ, Anusavice KJ. Fracture behavior of lithia disilicate-and leucite-based ceramics. Dent Mater. 2004;20:956-62.
  28. Ivoclarvivadent. Scientific Documentation IPS e.max® CAD-on Schaan (LI): Ivoclarvivadent; 2011 [cited: Aug 10th 2016]. Available at: http://www.ivoclarvivadent.com/zoolu-website/media/document/12250/IPS+e-max+CAD-on.
  29. Rosentritt M, Behr M, van der Zel JM, Feilzer AJ. Approach for valuating the influence of laboratory simulation. Dent Mater. 2009;25:348-52.
  30. Mitsias M, Koutayas SO, Wolfart S, Kern M. Influence of zirconia abutment preparation on the fracture strength of single implant lithium disilicate crowns after chewing simulation. Clin Oral Implants Res. 2014; 25:675-82.
  31. Al Omari WM, Shadid R, Abu-Naba’a L, Masoud BE. Porcelain fracture resistance of screw retained, cement-retained, and screw-cement-retained implant‐supported metal ceramic posterior crowns. J Prosthodont. 2010;19:263-73.
  32. Derafshi R, Farzin M, Taghva M, Heidary H, Atashkar B. The effects of new design of access hole on porcelain fracture resistance of implant-supported crowns. J Dent. 2015;16:61-7.
  33. Stona D, Burnett Jr LH, Mota EG, Spohr AM. Fracture resistance of computer-aided design and computer-aided manufacturing ceramic crowns cemented on solid abutments J Am Dent Assoc. 2015;146:501-7.
  34. Addison O, Marquis PM, Fleming GJ. Quantifying the strength of a resin-coated dental ceramic. J Dent Res. 2008;87:542-7.
  35. Amesti-Garaizabal A, Agustín-Panadero R, Verdejo-Solá B, Fons-Font A, Fernández-Estevan L, Solá-Ruíz MF. Fracture Resistance of Partial Indirect Restorations Made With CAD/CAM Technology. A Systematic Review and Meta-analysis. J Clin Med. 2019;8:1932.
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