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Microleakage of Adhesive and Nonadhesive Luting Cements for Stainless Steel Crowns

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Purpose: This study's purpose was to compare the ability of 5 luting cements to reduce microleakage at stainless steel crown (SSC) margins on primary molar teeth. Methods: Standard preparations were performed on 100 extracted primary molar teeth for SSC restoration. After fitting SSCs, samples were randomly divided into 5 groups of 20 teeth each, which were cemented with nonadhesive cement consisting of polycarboxylate (PC) or zinc phosphate (ZP), or with adhesive cement consisting of glass ionomer (GIC), resin-modified glass ionomer cement (RMGIC), or RMGIC with a bonding agent (RMGIC+DBA). After aging and thermocycling, the specimens were placed in 1% methylene blue, sectioned, and evaluated under a digital microscope. The data were compared between groups with the t test, analysis of variance, and the least significant difference test. Results: Microleakage with adhesive cements was significantly lower than with nonadhesive cements (P<.05). Differences between cements were statistically significant at P<.001. RMGIC+DBA showed the lowest microleakage, followed in increasing order by RMGIC, GIC, and ZP. The PC cement showed the greatest microleakage. Conclusions: Adhesive cements were more effective in reducing microleakage in stainless steel crowns than nonadhesive cements. Use of a bonding agent with a resin-modified glass ionomer cement yielded better results than using the latter alone.
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Keywords: DENTAL; DENTAL CEMENTS; MARGINAL ADAPTATION; PRIMARY TEETH; STAINLESS STEEL CROWN

Document Type: Research Article

Affiliations: 1: Associate professor, Pediatric Dentistry Department, Dental Faculty, Shiraz University of Medical Sciences, Shiraz, Iran;, Email: [email protected] 2: Pedodontist, Oral and Maxillofacial Pathology Department, Dental Faculty, Shahed University of Medical Sciences, Tehran, Iran 3: Assistant professor, Oral and Maxillofacial Pathology Department, Dental Faculty, Shahed University of Medical Sciences, Tehran, Iran 4: Assistant professor, Pediatric Dentistry Department, Dental Faculty, Shiraz University of Medical Sciences, Shiraz, Iran

Publication date: 01 November 2011

More about this publication?
  • Pediatric Dentistry is the official publication of the American Academy of Pediatric Dentistry, the American Board of Pediatric Dentistry and the College of Diplomates of the American Board of Pediatric Dentistry. It is published bi-monthly and is internationally recognized as the leading journal in the area of pediatric dentistry. The journal promotes the practice, education and research specifically related to the specialty of pediatric dentistry. This peer-reviewed journal features scientific articles, case reports and abstracts of current pediatric dental research.
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