Evaluation of the filling effects of three root canal sealers by Micro-CT.
10.7518/hxkq.2025.2025009
- Author:
Rihong HUANG
1
;
Xiangni ZENG
1
;
Li JIANG
1
;
Lixia ZHANG
1
;
Jingya ZHU
1
;
Fei HE
1
Author Information
1. Dept. of Stomatology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, China.
- Publication Type:Journal Article
- Keywords:
C-Root SP;
GuttaFlow Bioseal;
Micro-CT;
iRoot SP;
root canal filling;
root canal sealer
- MeSH:
Root Canal Filling Materials;
X-Ray Microtomography;
Humans;
Root Canal Obturation/methods*;
Gutta-Percha;
Dimethylpolysiloxanes;
Drug Combinations;
Dental Pulp Cavity/diagnostic imaging*;
Bicuspid
- From:
West China Journal of Stomatology
2025;43(5):722-727
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVES:This study aimed to evaluate the filling effects of three biomaterial root canal sealers [iRoot SP, C-Root SP, and GuttaFlow Bioseal (GFB)] by using Micro-CT.
METHODS:Sixty single-canal detached premolars were selected. After crown amputation, their uniform working length was set at 12 mm and prepared to a 06 taper 30# with M3 nickel-titanium file. The samples were randomly divided into six groups with different sealers and obturation techniques: iRoot SP+single-cone technique (SC), C-Root SP+SC, GFB+SC, iRoot SP+single cone-mediated ultrasonic technique (SU), C-Root SP+SU, and GFB+SU. Samples were scanned by Micro-CT, and the total and segmented filling rates were calculated with Mimics 22.0 software after 3D reconstruction.
RESULTS:The overall filling rate of the three biomaterial root canal sealers was higher than 90%. The overall and coronal third and middle third segment filling rate of groups iRoot SP+SC, C-Root SP+SC was higher than that of group GFB+SC (P<0.01), with no significant difference between groups iRoot SP+SC and C-Root SP+SC (P>0.05). On the apical third, no significant difference was found among each group (P>0.05). The overall and segment filling rate of groups iRoot SP+SU and C-Root SP+SU was higher than that of GFB+SU (P<0.01), with no significant difference between groups iRoot SP+SU and C-Root SP+SU (P>0.05). The filling rate of the apical 1/3 of group C-Root+SC was lower than that of group C-Root+SU (P<0.01), and the filling rate of the coronal 1/3 of group GFB+SC was higher than that in the GFB+SU (P<0.01). Nevertheless, no significant difference was found in other filling rate of two obturation techniques (P>0.05).
CONCLUSIONS:The overall filling rate of the three biomaterial root canal sealers using SC and SU are satisfactory. iRoot SP and C-Root SP have similar filling rates, which are significantly higher than that of GFB. C-Root SP combined with SU technique can improve the filling quality of the root apical.
