IADR Abstract Archives

Comparison between gutta-percha and bioceramics for internal resorption cavities obturation: pilot study.

Internal inflammatory root resorption is destruction of dental hard tissues, which results in progressive destruction of intraradicular dentin producing irregular surfaces that complicate root canal instrumentation and obturation. Objective: To compare ex vivo the homogeneity and adaptation of endodontic filling materials to dentin walls of internal resorption cavities (IRC), with bioceramic sealer and injected gutta-percha. Methods: Five maxillary central human incisors were used. The root canals were instrumented with rotary files.  The roots were sectioned longitudinally and standardized internal resorption cavities were prepared on the middle half of roots with burs.  For the obturation, the sample was evaluated under two experimental conditions successively, conforming two groups: Group I: EQ-V Master (Meta Dental) system injected thermoplasticized gutta-percha. Group II: gutta-percha points plus BioRoot (Septodont) bioceramic sealer. The same tooth was used for both experimental groups. First, it was filled with injected gutta-percha and then, after opening longitudinally the root and removing gutta-percha from the root canal; both radicular halves were joined and the root canal was filled with gutta-percha point and BioRoot sealer.  The teeth were scanned with Cone Beam Computed Tomography (CBCT) and subsequently a tridimensional reconstruction was made. The volume of obturation and the dentinal wall surface covered by the obturation material were calculated in the coronal, middle and apical thirds. Data were analized using Wilcoxon test. Results: The IRC obturation volume for group I was 100% and for group II, 94.6%. The resorption surface in contact with obturation material was 99.8% for group I and 96.4% for group II. More bubbles (4) were observed in Group II than in group I (2). No significant difference was found between both groups (P>0,05) Conclusion: IRC obturated with injected gutta-percha showed more bubbles in contact with  dentinal surface, affecting the adaptation of the obturation; whereas in BioRoot group, bubbles were observed in the center of  obturation, resulting in higher homogeneity of the obturation than injected gutta-percha.
Argentine Division Meeting
2018 Argentine Division Meeting (Córdoba, Argentina)
Córdoba
2018

Accepted Abstracts
  • Tenaglia Chioli, Noelia  ( Carrera de Especialización en Endodoncia. Universidad Católica de Córdoba )
  • Martín, Gabriela  ( Carrera de Especialización en Endodoncia. Universidad Católica de Córdoba )
  • Manzur, Emilio  ( UBA )
  • Macchi, Ricardo  ( UBA )
  • Jacobo, Maria Ines  ( Carrera de Especialización en Endodoncia. Universidad Católica de Córdoba )

  • Oral and Poster Presentations