Translucent fiber post cementation using light- and dual-curing adhesive techniques and a self-adhesive material:...

Area of Science:

• Dental Materials Science
• Endodontics
• Prosthodontics

Background:

• Fiber post cementation is crucial for restoring endodontically treated teeth.
• Understanding the interfacial strength of different luting cements is essential for long-term restoration success.

Purpose of the Study:

• To compare the interfacial bond strength of two dual-curing resin cements and one light-curing cement.
• To evaluate cement performance in translucent fiber post cementation using the push-out test.

Main Methods:

• Thirty-nine extracted human bicuspids were used.
• Translucent fiber posts were luted with three resinous systems: dual-curing (DC), self-adhesive dual-curing (SADC), and light-curing (LC).
• Push-out tests were performed on six slices per specimen after 60s light-curing.

Main Results:

• No statistical difference in interfacial strength was found between dual-curing (DC) and light-curing (LC) techniques across all regions.
• The light-curing (LC) technique showed lower bond strength in the apical region compared to coronal and middle regions.
• The self-adhesive dual-curing (SADC) technique exhibited lower bond strength in coronal and middle regions than the other two techniques.

Conclusions:

• The interfacial strength between light-curing cement and the root canal is comparable to that of dual-curing cement.
• Bond strength is influenced by the luting technique and the region within the root canal.