Assessment of post space volume change after removal of fiber post by two techniques using CBCT

Abdou, Soha Adel; Shawki, Mariam; El Maghraby, Emad; Usama, Esraa; Ahmed, Sherif; Moharrum, Haythem Samir

doi:10.21608/acdj.2023.242725.1009

Assessment of post space volume change after removal of fiber post by two techniques using CBCT

Document Type : Original Article

Authors

¹ Researcher of Endodontics, Dental Department, Research Institute of Ophthalmology (RIO), Giza, Egypt

² Egypt Air Hospital

³ ElMaghraby dental clinic

⁴ Hadayek el kobba medical center, MOH

⁵ Al-Qanayat Central Hospital, MOH

⁶ Assistant Professor, Department of Medical Applications of Laser, National Institute of Laser Enhanced Sciences, Cairo University.

10.21608/acdj.2023.242725.1009

Abstract

Aim: The aim of the study was to assess the post space volume change after the removal of the fiber post from endodontically treated teeth by ultrasonic and by the Er,Cr:YSGG laser and compare between them using cone-beam computed tomography (CBCT). Materials and Methods: This study used twenty-four extracted human single rooted teeth. They were mechanically prepared after their crowns were cut off near the cemento-enamel junction (CEJ). All roots were obturated with gutta-percha points and resin-based sealer. The post space preparation was made to all roots to receive the glass fiber posts. The post space volume was measured by CBCT before post cementation. The roots were divided into two groups (each = 12) according to the technique used in post removal. Group A: ultrasonic. Group B: Er,Cr:YSGG laser. CBCT was used to measure the post space volume after post removal. The difference between before post cementation and after post removal (dentin volume loss) was calculated, and the results were statistically analyzed. Results: In all groups, the post space volume after post removal was significantly higher than the post space volume before post cementation. Group B had a significantly higher mean value of dentin volume loss than group A. Conclusions: The post space volume after fiber post removal by the Er,Cr:YSGG laser or by ultrasonic was significantly higher than before post cementation. The use of the Er,Cr:YSGG laser in fiber post removal produced more dentin volume loss than ultrasonic.

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