Comparison of resin push-out strength to root dentin of bovine- and human-teeth
<b>Aim</b> : To compare the push-out strength of bovine- and human-root dentin and, thus, evaluate the suitability of bovine-root dentin to substitute human-root dentin for bond strength testing. <b> Materials and Methods</b> : Ten single-rooted human-teeth and ten bovine inc...
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| Main Authors: | , , , |
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| Format: | Book |
| Published: |
Wolters Kluwer Medknow Publications,
2009-01-01T00:00:00Z.
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| Online Access: | Connect to this object online. |
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| Summary: | <b>Aim</b> : To compare the push-out strength of bovine- and human-root dentin and, thus, evaluate the suitability of bovine-root dentin to substitute human-root dentin for bond strength testing. <b> Materials and Methods</b> : Ten single-rooted human-teeth and ten bovine incisors were prepared using a #3 bur of a fiber post system (12 mm long). The posts were duplicated with resin cement (Duolink). The root canals were treated with All Bond 2 adhesive system and the resin posts were cemented using Duolink. The specimens were cut perpendicular to their long axis, yielding disc-specimens with 1.5 mm thickness, which were submitted to a push-out test (1 mm/min). Ten bond strength values per group (n = 10) were used for statistical analysis (Student t test, a =.05). <b> Results</b> : Statistically significant differences were found for the bond strength values between bovine- (4.1 ± 1.3 MPa) and human-root dentin (8.6 ± 5.7 MPa) (P =.0001). <b>Conclusion</b> : The push-out strengths of bovine- and human-root dentin were statistically different. |
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| Item Description: | 0970-9290 1998-3603 |