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논문 기본 정보

자료유형
학술저널
저자정보
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대한치과보철학회 The Journal of Advanced of Prosthodontics The Journal of Advanced of Prosthodontics 제3권 제2호
발행연도
2011.1
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90 - 95 (6page)

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PURPOSE. To compare the fracture resistance and the mode of failure of endodontically treated teeth restored with different post-core systems. MATERIALS AND METHODS. Root canal treatment was performed on 40 maxillary incisors and the samples were divided into four groups of 10 each. For three experimental groups post space preparation was done and teeth were restored with cast post-core (Group B), stainless steel post with composite core (Group C) and glass fiber post with composite core using adhesive resin cement (Group D). Control group (A) samples were selected with intact coronal structure. All the samples were prepared for ideal abutment preparation. All the samples were subjected to a load of 0.5 mm/min at 130 degree until fracture occurred using the universal testing machine. The fracture resistance was measured and the data were analyzed statistically. The fracture above the embedded resin was considered to be favorable and the fracture below the level was considered as unfavorable. The statistical analysis of fracture resistance between different groups was carried out with t-test. For the mode of failure the statistical analysis was carried out by Kruskal-Wallis test and Chi-Square test. RESULTS. For experimental group Vs control group the fracture resistance values showed significant differences (P<.05). For the mode of failure the chi-square value is 16.1610, which means highly significant (P=.0009) statistically. CONCLUSION. Endodontically treated teeth without post core system showed the least fracture resistance demonstrating the need to reinforce the tooth. Stainless steel post with composite core showed the highest fracture resistance among all the experimental groups. Teeth restored with the Glass fiber post showed the most favorable fractures making them more amenable to the re-treatment.
#Cast post core #Glass fiber post #Prefabricated stainless steel posts #Fracture resistance of endodontically treated teeth

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참고문헌 (23)

참고문헌 신청
Akkayan B / 2002 / Resistance to fracture of endodontically treated teeth restored with different post systems / J Prosthet Dent 87 : 431 ~ 437 google schola Anusavice KJ / 1996 / Mechanical Properties of Dental Materials (Chapter 4). In: Phillips’Science of Dental Materials. 10th ed / WB Saunders Co : 49 ~ 74 google schola Chan RW / 1982 / Post-core foundations for endodontically treated posterior teeth / J Prosthet Dent 48 : 401 ~ 406 google schola Dean JP / 1998 / In vitro evaluation of a carbon fiber post / J Endod 24 : 807 ~ 810 google schola Fredriksson M / 1998 / A retrospective study of 236 patients with teeth restored by carbon fiberreinforced epoxy resin posts / J Prosthet Dent 80 : 151 ~ 157 google schola

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