Microleakage of several tooth-colored restorative materials in cervical cavities. A comparative study in vitro |
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| Affiliation: | 1. Department of Operative Dentistry, Tel-Aviv University, Israel;2. Department of Cariology and Endodontology, University of Nijmegen, The Netherlands, Postbox 9101 6500 HB Nijmegen;3. School of Dentistry, University of California, San Francisco, USA;1. Department of Postgraduate Endodontics, University of Tlaxcala, Tlaxcala, Mexico;2. Private Practice, Puebla, Mexico;3. Private Practice, Jalapa, Mexico;4. Private Practice, Tlaxcala, Mexico;5. Department of Endodontics, Benemerita Universidad Autónoma de Puebla, Puebla, Mexico;7. Lebanese University Dental School, Beirut, Lebanon;1. Private Practice, Aichi, Japan;2. Private Practice, Cetraro, Italy;3. Department of Endodontics, Faculty of Dentistry, Estácio de Sá University, Rio de Janeiro, RJ, Brazil;1. Guangxi Transport Technology Co. Ltd., Kunlun Ave, Nanning, Guangxi Province 530028, PR China;2. Faculty of Engineering Environment and Computing, Coventry University, W Midlands CV1 5FB, UK;1. Doctoral student, Department of Operative Dentistry and Dental Materials, School of Dentistry, Federal University of Uberlândia (UFU), Uberlândia, Brazil;2. Professor, Department of Operative Dentistry and Dental Materials, School of Dentistry, Federal University of Uberlândia (UFU), Uberlândia, Brazil;3. Doctoral student, Department of Operative Dentistry and Dental Materials, School of Dentistry, Federal University of Uberlândia (UFU), Uberlândia, Brazil;4. Professor, Department of Oral Health, Technical School of Health, Federal University of Uberlândia (UFU), Uberlândia, Brazil;5. Assistant Professor, Department of Telecommunications and Mechatronic Engineering, Federal University of São João del Rei (UFSJ), São João del Rei, Brazil;6. Associate Professor, School of Engineering, Federal University of Rio Grande (FURG), Rio Grande, Brazil;7. Professor, Department of Operative Dentistry and Dental Materials, School of Dentistry, Federal University of Uberlândia (UFU), Uberlândia, Brazil |
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| Abstract: | Two standardized V-shaped cavities were prepared at the cementoenamel junction of buccal and lingual surfaces of each of 45 extracted premolars (total 90 cavities). Nine combinations of bonding agents (Bondlite, Cervident, Clearfil, Heliobond, Pyrofil, Scotchbond, Concise) with restorative materials (Command, Ultrafine, Cervident, Silux, Heliosit, Pyrofil, Ketac-fil, Concise) were randomly assigned to the cavities. After thermocycling, dye penetration and sectioning of the teeth, the degree of penetration in the cavity walls was assessed. All combinations showed some degree of leakage. In all cases significantly more leakage was found in gingival (dentin or cementum) walls than in occlusal (enamel) walls. For enamel walls combinations of Bondlite with Command ultrafine and Pyrofil newbond with Pyrofil were superior; for dentin or cementum walls the combination of Clearfil newbond with Silux gave the least leakage. |
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