One-year Clinical Assessment of Class II Amalgam Restorations

Sarabi, Nasrin and Moghaddas, MohammadJavad and Ghaboolian, Tina (2008) One-year Clinical Assessment of Class II Amalgam Restorations. Journal of Mashhad Dental School, 32 (2). pp. 123-128.

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Introduction: According to the increase in producing of amalgam in our country and because of the costness of this material it is nessecery to compare an Iranian amalgam with non-Iranian amalgam. The objective of this one-year study was to evaluate the clinical criteria of recurrent caries, marginal adaptation, anatomic form, surface morphology and surface luster in class II amalgam restorations. Materials & Methods: In this clinical trial study, thirteen participants aged 20 to 35 years were selected. Two premolars of each one were prepared for normal class II cavity preparations and then were restored with two types of spherical high copper amalgams (Sina, Coeten). Next, according to USPHS system, the clinical criteria were evaluated in three intervals; immediately after restoration, 6 months and 12 months after treatment. For comparison of two amalgams in respect to clinical criteria, chi-square test was used (α=0.05). Results: α-Rating for all of the criteria in two amalgams after 6 months showed a reduction in comparison with baseline and also after 12 months compared with six month period. There was no significant difference in clinical criteria in each time interval for two amalgams (P>0.05). The most reduction in α-Rating was seen in surface luster of Sina but this was not statistically different from Colton. Conclusion: After one year, the recurrent caries was observed in gingival floor of class II high copper amalgam restorations which was more significant than the other factors. Key words: Clinical evaluation, amalgam, Spherical high copper, Class II cavity.

Item Type: Article
Subjects: WU Dentistry. Oral surgery
Divisions: Journals > Journal of Mashhad Dental School
Depositing User: jmds jmds
Date Deposited: 24 Sep 2017 12:43
Last Modified: 24 Sep 2017 12:43

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