Radiopacity of Esthetic Post Materials: Evaluation with Digital Analysis Technique
Makaleler > Tam Makale · 2015
Yazarlar: Mehmet Emin KAVAL, Hakan Akin, Pelin GÜNERİ
Journal of Prosthodontics, SCI Expanded İndekslerine Giren Dergi, Uluslararası, Wos, 2015, cilt 26, ss 455-459
DOI: 10.1111/jopr.12386
Özet
PURPOSE: To evaluate the radiopacity of five post materials using a digital image analysis method. MATERIALS AND METHODS: Twelve specimens from each post type (two zirconia and three fiber based) of 2 mm in thickness were obtained using a diamond blade mounted on a cutting machine, and digital radiographs were taken along with aluminum step-wedge and dentin discs under standard exposure conditions. The mean gray-values of specimens were measured using a computer graphics program. Data were analyzed using one-way ANOVA followed by Holm-Sidak multicomparison test (p = 0.05). RESULTS: The highest radiopacity was observed in custom zirconia (5.842 millimeters of equivalent Al [mmAl]), and the lowest value was detected with FRC-Postec (Ivoclar Vivadent) (1.716 mmAl). Significant differences were revealed between the radiopacity values among all groups (p < 0.05), except the Zr post materials (p = 0.56). CONCLUSIONS: All tested post materials had higher radiopacity than dentin. Further studies will be required to clarify optimum radiopacity properties of the post materials to provide a precise clinical observation.