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Original Article

Bond durability of contemporary adhesive systems to pulp chamber dentin

Pages 76-80 | Received 02 Mar 2015, Accepted 21 Jul 2015, Published online: 30 Sep 2015

Figures & data

Table 1. Chemical compositions and lot numbers of dental adhesive systems.

Table 2. Application protocols of dentin adhesive systems.

Figure 1. Schematic presentation of specimen preparation for microtensile bond strength test for bonding to bovine pulp chamber dentin surfaces. (a) two subsequent sections, which were perpendicular to long axis of tooth, were performed using low speed diamond saw under water cooling. The first section was performed at 5 mm above enamel–cement border; the other one was performed at 1 mm under enamel–cement border. (b) The obtained crown segments with 6 mm heights were sectioned into halves using low speed diamond saw. Then, pulp chamber dentin surfaces in order to bond were exposed. (c) Following application of adhesives, composite buildups were done incrementally. (d) Bonded specimens were sectioned serially to obtain resin–dentin sticks to be used for microtensile bond strength test.

Figure 1. Schematic presentation of specimen preparation for microtensile bond strength test for bonding to bovine pulp chamber dentin surfaces. (a) two subsequent sections, which were perpendicular to long axis of tooth, were performed using low speed diamond saw under water cooling. The first section was performed at 5 mm above enamel–cement border; the other one was performed at 1 mm under enamel–cement border. (b) The obtained crown segments with 6 mm heights were sectioned into halves using low speed diamond saw. Then, pulp chamber dentin surfaces in order to bond were exposed. (c) Following application of adhesives, composite buildups were done incrementally. (d) Bonded specimens were sectioned serially to obtain resin–dentin sticks to be used for microtensile bond strength test.

Table 3. Mean µTBS values (n = 20) and failure modes.