Selen Küçükkaya Eren1, Hacer Aksel2, Sevinc Askerbeyli Örs2, Ahmet Serper2, Yaprak Koçak2, Mert Ocak3, Hakan Hamdi Çelik3. 1. Department of Endodontics, Faculty of Dentistry, Hacettepe University, Sıhhiye, 06100, Ankara, Turkey. selenkkkaya@yahoo.com. 2. Department of Endodontics, Faculty of Dentistry, Hacettepe University, Sıhhiye, 06100, Ankara, Turkey. 3. Department of Anatomy, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
Abstract
OBJECTIVES: To evaluate and compare the obturation quality of mineral trioxide aggregate (MTA) and Biodentine placed with hand condensation or indirect ultrasonic activation technique in teeth models simulating perforating internal root resorption (IRR) using micro-computed tomographic (micro-CT) imaging. MATERIALS AND METHODS: Standardized models with perforating IRR cavities were created using 40 extracted single-rooted human teeth and randomly divided into four groups (n = 10). The specimens were obturated with either MTA or Biodentine and the placement technique applied was either hand condensation or indirect ultrasonic activation. Micro-CT scans were performed for the volumetric analysis of voids and filling materials in the resorption cavities and apical portion of the specimens. Data were analyzed using one-way analysis of variance and paired t test. RESULTS: No significant difference was observed between the groups in terms of the percentage volume of filling materials (p > 0.05). The apical portion of the specimens significantly presented less percentage volume of filling materials than the resorption cavities in each group (p < 0.05). CONCLUSIONS: No placement technique produced void-free fillings in teeth with perforating IRR. There was no significant difference between the obturation quality of Biodentine and MTA. The obturation quality in the apical portion of the root canals was inferior than that in the resorption cavities. CLINICAL RELEVANCE: The obturation of the apical region of teeth with perforating IRR is challenging irrespective of the material type and placement technique.
OBJECTIVES: To evaluate and compare the obturation quality of mineral trioxide aggregate (MTA) and Biodentine placed with hand condensation or indirect ultrasonic activation technique in teeth models simulating perforating internal root resorption (IRR) using micro-computed tomographic (micro-CT) imaging. MATERIALS AND METHODS: Standardized models with perforating IRR cavities were created using 40 extracted single-rooted human teeth and randomly divided into four groups (n = 10). The specimens were obturated with either MTA or Biodentine and the placement technique applied was either hand condensation or indirect ultrasonic activation. Micro-CT scans were performed for the volumetric analysis of voids and filling materials in the resorption cavities and apical portion of the specimens. Data were analyzed using one-way analysis of variance and paired t test. RESULTS: No significant difference was observed between the groups in terms of the percentage volume of filling materials (p > 0.05). The apical portion of the specimens significantly presented less percentage volume of filling materials than the resorption cavities in each group (p < 0.05). CONCLUSIONS: No placement technique produced void-free fillings in teeth with perforating IRR. There was no significant difference between the obturation quality of Biodentine and MTA. The obturation quality in the apical portion of the root canals was inferior than that in the resorption cavities. CLINICAL RELEVANCE: The obturation of the apical region of teeth with perforating IRR is challenging irrespective of the material type and placement technique.
Authors: Priscila Fernanda da Silveira; Mariana Boessio Vizzotto; Francisco Montagner; Heraldo Luis Dias da Silveira; Heloísa Emília Dias da Silveira Journal: J Endod Date: 2013-09-20 Impact factor: 4.171
Authors: Fernanda Ferrrari Esteves Torres; Reinhilde Jacobs; Mostafa EzEldeen; Juliane Maria Guerreiro-Tanomaru; Bernardo Camargo Dos Santos; Éverton Lucas-Oliveira; Tito José Bonagamba; Mario Tanomaru-Filho Journal: J Mater Sci Mater Med Date: 2020-01-21 Impact factor: 3.896