Evaluation of debris covering the pulp chamber and root canals after irrigant activation using different access cavity designs

Document Type : Original Article

Authors

1 endodontics, faculty of dentistry, Al-Azhar university, Cairo , Egypt

2 department of endodontics, cairo , boys , al azhar university, egypt

3 endodontics,faculty of dentistry,alazhar univ., cairo, Egypt

Abstract

Objectives: This study aimed to evaluate the cleanliness of the pulp chamber and root canal after irrigant activation using different access cavity designs.
Materials and methods: 60 human lower mandibular first molars were divided according to access cavity design into three main groups(n=20): guided conservative access cavity design (GCAC), truss access cavity design (TAC), and conservative access cavity design (CAC); each group was further subdivided into two subgroups(n=10): side-vented irrigating needle(A) and Endovac activation system (B). A Pre-operative Cone beam computed tomography (CBCT) was done for all samples. After chemo-mechanical preparation for all samples, samples were sectioned and scanned by scanning electron microscope (SEM) at 500 X to evaluate the remaining debris covering the pulp chamber and mesiobuccal root canals.
Results: TAC showed a significant difference from CAC and GCAC. No difference between CAC and GCAC.
Conclusion: TAC is an ultra-conservative access cavity design but compromises root canal system cleanliness.

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Al-Azhar Journal of Dental Science
Volume 28, Issue 3 - Serial Number 3
July - Restorative Dentistry Issue (Removable Prosthodontics, Fixed Prosthodontics, Endodontics, Dental Biomaterials, Operative Dentistry)
July 2025
Pages 359-365

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