European Journal of Prosthodontics and Restorative Dentistry

Effect of Noble Metal Alloy Post and Core Material on the Fracture Resistance of Endodontically Treated Teeth


Abstract - The aim of this study was to investigate the effect of one particular brand of post and core system (ER Post) consisted of different post and core materials on the fracture resistance of endodontically treated teeth. Fifty caries-free maxillary central incisors were randomly assigned to five groups (n=10). All teeth were sectioned at the cemento-enamel junction except for the teeth in the control group. Four experimental groups consisted of cast gold post-and-core group (GG), Heraplat post/cast gold core group (HG), titanium post/composite core (TC), and titanium post/cast gold core (TG). The control group (ETT) consisted of endodontically treated teeth without posts. All posts were cemented in the roots with zinc phosphate cement. Following thermal cycling (5000 cycles between 5°C and 55°C with a dwell time of 30 seconds) a static load was applied to 2 mm below the incisal edge on the palatal surface of each specimen until they were fractured. Fracture data obtained and statistically analyzed with one-way ANOVA and a Tukey’s test (p<0.05). Means of the fracture resistance during static loading were: 423.76 N (GG), 529.46 N (HG), 389.08 N (TC), 408.7 N (TG), 404.4 N (ETT, control). Heraplat post with cast gold core exhibited the highest fracture load than the other groups (p<0.05). Specimens in groups HG and ETT (control) showed the most repairable failure. Heraplat post with cast gold core had the highest fracture resistance of endodontically treated teeth.

KEY WORDS: endodontically treated tooth, metal alloy post, noble metal alloy, fracture resistance


Suna Toksavul, Muhittin Toman, Mehmet Sarıkanat, İbrahim Nergiz, Petra Schmage

Articles from this issue

Title / DOI Access Page Start Page End Purchase
Effect of Noble Metal Alloy Post and Core Material on the Fracture Resistance of Endodontically Treated Teeth
no access 2 7 £10.00
An Audit to Assess the Quality and Efficiency of Complete and Partial Dentures Delivered by Junior Hospital Staff
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An Assessment of Shade Taking by Dental Undergraduates
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An Investigation of the ability of Computerized Axiography to Reproduce Occlusal Contacts
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Fracture Resistance of Endodontically Treated Teeth: Effect of Tooth Coloured Post Material and Surface Conditioning
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Embedding Implant Dentistry into the Undergraduate Dental Curriculum
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Dimensional Stability of Complete Denture Permanent Acrylic Resin Denture Bases; A Comparison of Dimensions Before and After a Second Curing Cycle.
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Is the Bond Between Acrylic Resin Denture Teeth and Denture Base Resin Stronger if They are Both Made by the Same Manufacturer?
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Book Review and Erratum notice
no access 42 42 £10.00
Decision Making Among Swedish General Dental Practitioners Concerning Prosthodontic Treatment Planning In a Shortened Dental Arch
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