Related Experiment Video
Updated: Apr 7, 2026
Effects of Mechanical Methods Used in Peri-implantitis Treatment on Implant Surface Decontamination and Roughness
Published on: March 14, 2025
Effect of preendodontic build-up on irrigant penetration in extracted single-rooted premolars: An ex vivo study
Sarthak Ghanshyam Fuke1, Suresh Shenvi1, Kaligotla Apoorva Vasundhara2
1Department of Conservative Dentistry and Endodontics, KLE VK Institute of Dental Sciences, KLE Academy of Higher Education and Research, Deemed-to-be-University, Belagavi, Karnataka, India.
Aim:
This ex vivo study aimed to assess the effect of preendodontic build-up (PEB) on irrigant penetration into dentinal tubules using confocal laser scanning microscopy (CLSM) and to compare two different PEB materials.
Materials And Methods:
Sixty-four extracted mandibular first premolars with single canals were standardized and randomly allocated into four groups (n = 16): Group I - no PEB with syringe irrigation, Group II - no PEB with sonic activation, Group III - liquid rubber dam PEB with sonic activation, and Group IV - composite resin PEB with sonic activation. Root canals were prepared up to size 30/0.06 using rotary instruments. 5.25% NaOCl labeled with rhodamine B was used as the irrigant. Specimens were sectioned at coronal, middle, and apical levels and evaluated under CLSM to measure maximum irrigant penetration depth. Data were analyzed using Kruskal-Wallis and Friedman tests (P ≤ 0.05).
Results:
Irrigant penetration was significantly greater in groups with PEB compared with those without PEB at all canal levels (P < 0.0001). Group IV demonstrated the highest penetration, particularly in the apical third.
Conclusion:
PEB significantly enhances irrigant penetration, especially in the apical third. Establishing an effective coronal reservoir, regardless of the build-up material used, improves irrigation efficacy.
