The bonding of glass ionomer cements to caries-affected primary tooth dentin

Alves, Fabiana Bucholdz Teixeira; Hesse, Daniela; Lenzi, Tathiane Larissa; Guglielmi, Camila De Almeida Brandão; Reis, Alessandra; Loguercio, Alessandro Dourado; Saads Carvalho, Thiago; Raggio, Daniela Prócida (2013). The bonding of glass ionomer cements to caries-affected primary tooth dentin. Pediatric dentistry, 35(4), pp. 320-324. American Academy of Pediatric Dentistry

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PURPOSE The purpose of this study was to evaluate the bonding of glass ionomer cements (GICs) to sound and caries-affected dentin by microtensile bond strength (μTBS) and nanoleakage (NL) tests. METHODS Occlusal cavity preparations were made in 36 sound primary molars. Half of the specimens were submitted to a pH-cycling model to create simulated caries-affected dentin. Teeth were randomly restored with one of the three materials: (1) resin-modified GIC with nanoparticles (Ketac N100; KN); (2) resin-modified GIC (Vitremer; VI); and (3) high-viscosity GIC (Ketac Molar Easy Mix; KM). Specimens were tested using a microtensile test (1 mm/minute). One specimen from each tooth was immersed in ammoniacal silver nitrate for 24 hours and revealed after eight hours to assess interfacial NL. The μTBS means were analyzed by 2-way analysis of variance and Tukey's post hoc test. For NL, Kruskal-Wallis and Mann-Whitney tests were used (P<.05). RESULTS No difference was found between sound and caries-affected dentin (P>.05). KM showed the lowest GIC-dentin μTBS values, while VI and KN showed higher values. Infiltration of ammoniacal silver nitrate into the adhesive interface was not affected by sound or caries-affected dentin. CONCLUSION Caries-affected dentin does not jeopardize the bonding of glass ionomer cements to primary tooth dentin.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine
04 Faculty of Medicine > School of Dental Medicine > Department of Preventive, Restorative and Pediatric Dentistry

UniBE Contributor:

Saads Carvalho, Thiago

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1942-5473

Publisher:

American Academy of Pediatric Dentistry

Language:

English

Submitter:

Eveline Carmen Schuler

Date Deposited:

22 Apr 2014 11:44

Last Modified:

25 Jan 2017 12:15

PubMed ID:

23930629

Uncontrolled Keywords:

Dental bonding, dental caries, glass ionomer cements

BORIS DOI:

10.7892/boris.39485

URI:

https://boris.unibe.ch/id/eprint/39485

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