| Title |
Porosity distribution in apically perforated curved root canals filled with two different calcium silicate based materials and techniques: a micro-computed tomography study / |
| Authors |
Drukteinis, Saulius ; Pečiulienė, Vytautė ; Shemesh, Hagay ; Tušas, Paulius ; Bendinskaitė, Rūta |
| DOI |
10.3390/ma12111729 |
| Full Text |
|
| Is Part of |
Materials.. Basel : MDPI AG. 2019, vol. 12, no. 11, art. no. 1729, p. [1-9].. ISSN 1996-1944 |
| Keywords [eng] |
apical plug ; BioRoot RCS ; micro-computed tomography ; MTA flow ; root perforation ; tricalcium silicate |
| Abstract [eng] |
The present study evaluated the porosity distribution of BioRoot RCS/single gutta-percha point (BR/SC) and MTA flow (MF) fillings, which were used as plugs for the apical perforation repair in curved canals of extracted mandibular molars using micro-computed tomography (CT). Forty mesial root canals of mandibular first molars were shaped with ProTaper NEXT X1–X5 files 2 mm beyond the apex to simulate apical perforations that were randomly divided into two groups (n = 20) according to the material and technique used for the apical plug: BR/SC or MF. The specimens were scanned before and after canal filling at an isotropic resolution of 9.9 m. The volumetric analysis of voids in the apical 5 mm of the fillings was performed. Data were analyzed using one-way ANOVA with Bonferroni correction (p < 0.05). Micro-computed tomography (CT) evaluation revealed significant di erences between the groups in terms of porosity: the total volume and percentage volume of voids was lower in the BR/SC group in comparison with the MF group (p < 0.05), with the predominance of open pores in both groups. Neither of the materials and/or application techniques were able to produce void-free root fillings in the apical region of artificially perforated curved roots of mandibular molars. |
| Published |
Basel : MDPI AG |
| Type |
Journal article |
| Language |
English |
| Publication date |
2019 |
