Is adhesive cementation of endodontic posts necessary?

Area of Science:

• Dentistry
• Biomaterials Science
• Restorative Dentistry

Background:

• The durability of adhesive systems and composite resin cements for retaining endodontic posts has been questioned.
• Investigating less technique-sensitive, conventional non-adhesive approaches for glass fiber post placement is crucial.

Purpose of the Study:

• To evaluate the influence of non-adhesive, self-adhesive, and etch-and-rinse systems on the load capability of post-endodontic restorations.
• To compare the reliability of different cementation strategies for glass fiber posts.

Main Methods:

• Human maxillary central incisors were endodontically treated and restored with glass fiber posts using four different cementation protocols.
• Specimens underwent thermal cycling, mechanical loading, and static loading to assess load capability and fracture patterns.
• A 2 mm-ferrule preparation was performed on all specimens before cementation.

Main Results:

• Significant differences in load capability and fracture patterns were observed among the experimental groups.
• Conventional non-adhesive post cementation demonstrated lower reliability in withstanding simulated functional forces.
• Adhesive approaches proved more robust in comparison to the non-adhesive method.

Conclusions:

• Conventional non-adhesive cementation is less reliable for endodontic post retention than adhesive techniques.
• Adhesive strategies provide superior performance in resisting simulated functional forces for post-endodontic restorations.
• Further research into optimized adhesive protocols for glass fiber post retention is warranted.