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:: Volume 26, Issue 3 (7-2014) ::
2014, 26(3): 170-176 Back to browse issues page
Comparison of the Effect of Feldspathic Porcelain and Zirconia on Natural Tooth Wear
Asadollah Ahmadzadeh , Alireza Hashemi Ashtiani , Saeid Epakchi , Mehdi Pormehdi , Ammar Neshati , Farnoosh Golmohamadi , Najmeh Mousavi
, saied_epakchi@yahoo.com
Abstract:   (4377 Views)

  Comparison of the Effect of Feldspathic Porcelain and Zirconia on Natural

  Tooth Wear

  

 Asadollah Ahmadzadeh .,1 Alireza Hashemi Ashtiani .,1 Saeid Epakchi ., 2 * Mehdi Pormehdi .,3 Ammar Neshati .,4

  Farnoosh Golmohamadi .,2 Najmeh Mousavi N.5

  1 Assistant Professor, Department of Prosthodontics , School of Dentistry, Ahwaz University of Medical Sciences . Ahwaz , Iran. 2 Postgraduate student , Department of Prosthodontics , School of Dentistry, Ahwaz University of Medical Sciences . Ahwaz , Iran. 3 Assistant Professor, Department of Epidmiology , School of Medicine, Ahwaz University of Medical Sciences . Ahwaz , Iran . 4 Assistant Professor, Department of Prosthodontics , School of Dentistry, Army University of Medical Sciences. Ahwaz , Iran. 5 Assistant Professor, Department of Prosthodontics , School of Dentistry, Ghazvin University of Medical Sciences . Ghazvin , Iran. 

 

  (Received 5 Nov, 2013 Accepted 13 March, 2014)

  

  Abstract

  

  Background and Aim : Enamel wear is among the main disadvantages of ceramic restorations. Recently, use of full zirconia crowns without dental porcelain has been suggested. The aim of this study was to compare the effect of feldspathic porcelain and zirconia on the wear of natural teeth .

  Materials and Methods : In this experimental study, 22 zirconia specimens were fabricated out of which, 11 specimens were polished and chosen as zirconia specimens while the remaining 11 were used to fabricate porcelain specimens. A total of 22 natural human teeth were also obtained. The natural teeth were photographed by a stereomicroscope in a fixed position and the distance from the cusp tip to a reference point was measured. Next, 11 teeth opposed zirconia and the remaining 11 opposed porcelain specimens in a chewing simulator and subjected to 120,000 masticatory cycles. The teeth were photographed again and the greatest difference between the before and after values ​​ was recorded .

  Results : The mean (± standard deviation) wear rate was 153.8±95.68 and 306.3±127.74, in the zirconia and porcelain groups, respectively and the two groups had a statistically significant difference in this respect (p=0.007 ).

  Conclusion : The mean wear was significantly lower in teeth opposing zirconia than in those opposing feldspathic porcelain .

  Key words : Natural tooth wear, Feldspathic porcelain, Zirconia

* Corresponding Author: Saeid Epakchi ., Postgraduate student , Department of Prosthodontics , School of Dentistry, Ahwaz University of Medical Sciences . Ahwaz , Iran.

  e.mail: saied_epakchi@yahoo.com

 

Keywords: Natural tooth wear, Feldspathic porcelain, Zirconia
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Type of Study: Research | Subject: Porosthodontics
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Ahmadzadeh A, Hashemi Ashtiani A, Epakchi S, Pormehdi M, Neshati A, Golmohamadi F et al . Comparison of the Effect of Feldspathic Porcelain and Zirconia on Natural Tooth Wear. Journal of Islamic Dental Association of IRAN (JIDA) . 2014; 26 (3) :170-176
URL: http://jidai.ir/article-1-1645-en.html


Volume 26, Issue 3 (7-2014) Back to browse issues page
Journal of Islamic Dental Association of Iran

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