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:: دوره 5، شماره 5 - ( مجموعه مقالات پروتزهای دندانی 1390 ) ::
جلد 5 شماره 5 صفحات 0-0 برگشت به فهرست نسخه ها
Microleakage of Different Post Systems and a Custom Adapted Fiber Post
چکیده:   (2701 مشاهده)
Objective: The effects of closely adapting a prefabricated fiber to the post space remain unknown. The purpose of this study was to quantify the microleakages of a custom adapted fiber-reinforced post, a prefabricated quartz fiber post and a cast post using nondestructive methods. 
  Materials and Methods: Sixty-five extracted human premolars were endodontically treated and randomly divided into three groups (n=15), which were restored using a cast post-and-core, a custom adapted fiber post (Refropost) with a microhybrid microfiller resin composite (Gradia), or a prefabricated quartz fiber post (DT light post) and two groups of control ( n=10). All groups were cemented using a dual polymerizing resin cement (Panavia F2.0). A composite core (Z100) was used for the fiber posts. The microleakage was calculated for the experimental and control groups before and after thermal cycling and cycling loading using a radiotracer solution (thallium 201 chloride) and a gamma counter device. Data were subjected to statistical analysis of ANOVA and Tukey HSD at significant level of P< 0.05. 
  Results: Significantly lower microleakage values were found for the cast post-and-core (mean value =16.04 ×104 ) and custom adapted fiber post groups (mean value=14.36×104). Thermal cycling and cyclic loading had no significant effect on the microleakage value of any tested group.
Conclusion: Post systems with improved adaptation showed similar microleakage to casting posts.

Source: Journal of Dentistry of Tehran University of Medical Sciences

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نوع مطالعه: پژوهشي | موضوع مقاله: پروتزهای دندانی
دریافت: 1391/12/1 | انتشار: 1390/10/25
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Geramipanah F, Mirmohamadrezaee S, Fallahi Sichani S, Fallahi Sichani B, Sadighpour L. Microleakage of Different Post Systems and a Custom Adapted Fiber Post. 3 2012; 5 (5)
URL: http://idai.ir/article-1-992-fa.html

Microleakage of Different Post Systems and a Custom Adapted Fiber Post. 1. 1390; 5 (5)

URL: http://idai.ir/article-1-992-fa.html



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Creative Commons License این مقاله تحت شرایط Creative Commons Attribution-NonCommercial 4.0 International License قابل بازنشر است.
دوره 5، شماره 5 - ( مجموعه مقالات پروتزهای دندانی 1390 ) برگشت به فهرست نسخه ها
جامعه اسلامی دندانپزشکان Islamic Dental Association of IRAN

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