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objective: the use of presently available dentin bonding systems has greatly reduced mi-croleakage; however, the ideal situation where the adhesive resin completely penetrates the demineralized dentin is not yet achieved. the purpose was to compare the microleak-age of fifth and sixth generation bonding agents at enamel and dentinal margins. materials and methods: class v cavities were prepared...

Background: The purpose of the descriptive study was to investigate students' attitude, who attend their fifth and sixth years of study, about endodontics seminars using problem based learning method at Mashhad Dental School. Methods: It is a descriptive study conducted on fifth and sixth grade students of Mashhad Dental School in 2012-2013 academic years. Data were gathered via questionnaire. ...