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J Islam Dent Assoc Iran 2020, 32(1 And 2): 1-7 Back to browse issues page
Final Retention of Recemented Dental Casting Luted with Different Resin Cements
Ehsan Ghasemi1 , Navid Haghayegh2, Fatemeh Salehi Ghalesefid * 3
1- Assistant Professor, Dental Materials Research Center and Department of Prosthodontics, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
2- Private Dentist, Specialist of Restorative Dentistry, Ontario, Canada
3- Postgraduate Student, Department of Prosthodontics, School of Dentistry, Isfahan University of Medical Sciences, Isfa-han, Iran , Salehifa.1991@gmail.com
Abstract:   (252 Views)
Background and Aim: Dislodgment of prosthetic crowns is a common occurrence. In such cases, recementation is a suitable treatment option. The aim of this study was to compare the retention in cementation and recementation using different resin ce-ments.
Materials and Methods: In this in vitro, experimental study, 40 premolars were se-lected (n=10). They were standardized relative to some properties and then the wax patterns were prepared and cast. After 24 h, all specimens were decemented using In-stron universal testing machine. The castings were then re-cemented and stored under the same conditions. After 24 h, the cemented copings were dislodged, and the separa-tion load was recorded.
Results: The highest and the lowest mean retention values belonged to Panavia F2 and Maxcem cements in both initial cementation and recementation groups, respectively. Paired sample t-test showed a significant difference in the retention of G-CEM group between initial cementation and recementation (P=0.009). The two-factorial repeated measures ANOVA showed the significant effect of cement type on retention (P=0.009), and there was a significant difference in retention between initial cementation and recementation (P=0.006). The Tukey’s HSD test re-vealed a significant difference in retentive strength between the Maxcem and Panavia F2 (P=0.011). The lowest mean difference was observed between Bifix SE and Maxcem groups (-16.75 kgf, P=0.89).
Conclusion: The maximum and minimum mean retention values belonged to Panavia F2 cement and Maxcem in both initial cementation and recementation groups, respectively. There was a significant difference between the initial cementation and recementation in G-CEM group.
Keywords: Cementation, Dental Cements, Resin cements, Dental Prosthesis Retention, Tensile Strength
Full-Text [PDF 506 kb]   (78 Downloads)    
Type of Study: Orginal | Subject: Orthodontics
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Ghasemi E, Haghayegh N, Salehi Ghalesefid F. Final Retention of Recemented Dental Casting Luted with Different Resin Cements. J Islam Dent Assoc Iran. 2020; 32 (1 and 2) :1-7
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Volume 32, Issue 1 And 2 (In Progress 2020) Back to browse issues page
Journal of Islamic Dental Association of Iran

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