Fracture Strength of Three All-Ceramic Systems: Top-Ceram compared with IPS-Empress and In-Ceram
Firas Al Quran, Reem Haj-Ali
Citation Information :
Quran FA, Haj-Ali R. Fracture Strength of Three All-Ceramic Systems: Top-Ceram compared with IPS-Empress and In-Ceram. J Contemp Dent Pract 2012; 13 (2):210-215.
The purpose of this study was to investigate the fracture loads and mode of failure of all-ceramic crowns fabricated using Top-Ceram and compare it with all-ceramic crowns fabricated from well-established systems: IPS-Empress II, In-Ceram.
Materials and methods
Thirty all-ceramic crowns were fabricated; 10 IPS-Empress II, 10 In-Ceram alumina and 10 Top-Ceram. Instron testing machine was used to measure the loads required to introduce fracture of each crown.
Results
Mean fracture load for In-Ceram alumina [941.8 (± 221.66) N] was significantly (p < 0.05) higher than those of Top-Ceram and IPS-Empress II. There was no statistically significant difference between Top-Ceram and IPS-Empress II mean fracture loads; 696.20 (+222.20) and 534 (+110.84) N respectively. Core fracture pattern was highest seen in Top- Ceram specimens.
How to cite this article
Quran AF, Haj-Ali R. Fracture Strength of Three All-Ceramic Systems: Top-Ceram Compared with IPSEmpress and In-Ceram. J Contemp Dent Pract 2012;13(2): 210-215.
Factors essential for successful all-ceramic restorations. J Am Dent Assoc Sep 2008;139(Suppl):14S-18.
Clinical complications in fixed prosthodontics. J Prosthet Dent Jul 2003;90(1):31-41.
Recent advances in ceramics for dentistry. Crit Rev Oral Biol Med 1996;7(2):134-43.
Recent advances in materials for all ceramic restorations. Dent Clin N Am 2007;51:713-27.
Strength, fracture toughness and microstructure of a selection of allceramic materials. Part I: Pressable and alumina glass infiltrated ceramics. Dent Mater 2004;20:441-48.
Fracture toughness and hardness evaluation of three pressable all-ceramic dental materials. J Dent Mar 2003;31(3):181-88.
Biaxial flexural strength, elastic moduli, and X-ray diffraction characterization of three pressable all-ceramic materials. J Prosthet Dent Apr 2003;89(4):374-80.
A comparison of the microstructure and properties of the IPS Empress 2 and the IPS Empress glass-ceramics. J Biomed Mater Res 2000;53(4):297-303.
Fracture behavior of lithia disilicate-and leucite-based ceramics. Dent Mater Dec 2004;20(10):956-62.
In vitro shear bond strength of cementing agents to fixed prosthodontic restorative materials. J Prosthet Dent Sep 2004;92(3):265-73.
Relative flexural strength of dental restorative ceramics. Dent Mater Jul 1990;6(3):181-84.
Flexural strength of alumina and glass components of In-Ceram. J Dent Res 1992;71:253.
Survival of In-Ceram crowns in a private practice: A prospective clinical trial. J Prosthet Dent Feb 2000;83(2):216-22.
Fracture strength and fatigue resistance of all-ceramic molar crowns manufactured with CAD/CAM technology. J Prosthodont Jul 2008;17(5):370-77.
Fracture resistance of three all-ceramic restorative systems for posterior applications. J Prosthet Dent Jun 2004;91(6):561-69.
Relative flexural strength of six new ceramic materials. Int J Prosthodont May-Jun 1995;8(3):239-46.
Porcelain and composite inlays and onlays. Chicago: Quintessence 1994;1-158.
Strength tests for brittle materials. In: Davidge RW (Ed). Mechanical properties of ceramics. Stoke-on-trent, England: Brit Ceram Soc 1975;25:281-93.
Factors influencing the test methods and strength of dental porcelain. Trans and Brit Ceram Soc 1971;70:124-27.
Occlusal forces during chewinginfluences of biting strength and food consistency. J Prosthet Dent Nov 1981;46(5):561-67.
Occlusal force pattern in dentitions with mandibular implant-supported fixed cantilever prostheses occluded with complete dentures. Int J Oral Maxillofac Implants Spring 1989;4(1):55-62.
Functional occlusal forces: An investigation by telemetry. J Prosthet Dent Sep 1978;40(3):326-33.
Electromyography and bite force studies of muscular function and dysfunction in masticatory muscles. Swed Dent J Suppl 1986;37:1-64.
In vivo occlusal forces and moments: I. Forces measured in terminal hinge position and associated moments. J Dent Res Jan-Feb 1975;54(1):114-20.
Changes in maximum bite force related to extension of the head. Eur J Orthod May 1990;12(2):148-53.
Bite force and state of dentition. Acta Odontol Scand 1977;35(6):297-303.
The association among occlusal contacts, clenching effort, and bite force distribution in man. J Dent Res Jun 1997;76(6):1316-25.
Ceramics: Rationale for material selection. Compend Contin Educ Dent Nov-Dec 2010;31(9):666-68, 670.
Fracture-surface analysis of dental ceramics. J Prosthet Dent Nov 1989;62(5):536-41.
Fracture surface analysis of dental ceramics: Clinically failed restorations. Int J Prosthodont Sep-Oct 1990;3(5):430-40.
Fracture surface characterization of clinically failed all-ceramic crowns. J Dent Res Dec 1994;73(12):1824-32.
Effects of cyclic loading on the strength of all-ceramic materials. Int J Prosthodont Jan-Feb 1999;12(1):28-37.
The effect of luting media on the fracture resistance of a flame sprayed allceramic crown. J Dent Nov 2001;29(8):539-44.