JMIR Publications

ABSTRACT

Background:

For guarantee of longevity and functionality, endodontically treated teeth need to be properly restored. Fiber post luted with dual-cure resin cement are frequently utilized because of their improved biomechanical and adhesive qualities. However, achieving a strong binding between fiber post and root canal dentin is difficult due to the physical constraints of root canals and the presence of a smear layer. Bond strength may be increased by post-space irrigation with solutions such 5% calcium hypochlorite, 17% EDTA, and saline that have been activated by sonic or ultrasonic techniques. Present study compares the effects of several activation techniques on the push-out bond strength of dual-cure cement luted fiber posts.

Objective:

To evaluate how the push-out bond strength of dual-cure resin cemented fiber post in excised human mandibular single-rooted premolars is affected by the sonic and ultrasonic activation of three post-space irrigants: 5% calcium hypochlorite, 17% EDTA, and saline.

Methods:

One hundred and twenty single-rooted mandibular premolars will be used in this in vitro investigation. A consistent procedure will be used to decoronate, instrument, and obturate the teeth. One of the three solutions, activated either acoustically or ultrasonically, will be used to prepare and irrigate post spaces. Dual-cure resin cement will then be used to cement the fiber posts. By testing in universal testing machine , push-out bond strength will be measured. Tukey's post hoc test and ANOVA will be utilized for statistical analysis of the data.

Results:

It is expected that variations in irrigant type and activation method may influence push-out bond strength of dual cure cemented fiber post. Groups irrigated with 17% EDTA , 5% calcium hypochlorite, particularly with ultrasonic activation, may show relatively higher bond strengths compared to saline.

Conclusions:

The current study's goal is to evaluate how various post-space irrigants alongwith their activation techniques affect the fiber posts' push-out bond strength. The findings could help standardize irrigation procedures and enhance adhesive efficacy in endodontic therapy. Clinical Trial: Since this is an in vitro laboratory-based study involving extracted human teeth and not human participants or clinical interventions, registration with the Clinical Trials Registry–India (CTRI) is not required. The study does not involve patient recruitment or direct clinical application.