Comparative Analysis of Root Canal Dentin Removal Capacity of Two NiTi Endodontic Reciprocating Systems for the Root Canal Treatment of Primary Molar Teeth. An In Vitro Study

Abstract

The objective of the present study was to evaluate and compare the dentin removal capacity of Endogal Kids and Reciproc Blue NiTi alloy endodontic reciprocating systems for root canal treatments in primary second molar teeth via a micro-computed tomography (micro-CT) scan. Materials and Methods: Sixty root canal systems in fifteen primary second molar teeth were chosen and classified into one of the following study groups: A: EK3 Endogal Kids (n = 30) (EDG) and B. R25 Reciproc Blue (n = 30) (RB). Preoperative and postoperative micro-CT scans were uploaded into image processing software to analyze the changes in the volume of root canal dentin using a mathematical algorithm that enabled progressive differentiation between neighboring pixels after defining and segmenting the root canal systems in both micro-CT scans. Volumetric variations in the root canal system and the root canal third were calculated using a t-test for independent samples or a nonparametric Mann–Whitney–Wilcoxon test. Results: Statistically significant differences (p = 0.0066) in dentin removal capacity were found between the EDG (2.89 ± 1.26 mm3) and RB (1.22 ± 0.58 mm3) study groups for the coronal root canal third; however, no statistically significant differences were found for the middle (p = 0.4864) and apical (p = 0.6276) root canal thirds. Conclusions: Endogal and Reciproc Blue NiTi endodontic reciprocating systems showed similar capacity for the removal of root canal dentin, except for the coronal root canal third, in which the Reciproc Blue NiTi endodontic reciprocating system preserved more root canal dentin tissue.

Comparative assessment of cleaning efficacy of two exclusive paediatric rotary files in root canals of primary teeth: An in vitro study

“…Islam et al 20 and Barasuol et al 21 also checked the incidences of canal transportation with NiTi rotary files in comparison with hand files along with volumetric dentine removal. Both these studies found NiTi files to be a suitable and more efficient alternative to hand filing, which falls in line with the conclusions of similar studies carried out by other authors [22][23][24] ; it is, however, worth mentioning that these studies did not include any exclusive paediatric rotary files in their studies. Among the studies that did involve exclusive paediatric rotary files are the ones performed by Nabeeh et al 25 and Mohamed et al 26 Their studies included the Kedo-S file system and concluded that by using rotary Kedo-S files, tooth structure was better preserved, tapering was made more effectively, and instrumentation time was reduced.…”

Cone-beam computed tomography analysis of primary root canals transportation and dentin loss after instrumentation with two-pediatric rotary files

“…Another important point regarding the use of pediatric rotary files with taper of 0.04 as those adopted in the current study diminishes the risk of root perforations compared to rotary files with tapers of 0.06 and 0.08 [ 39 ]. The higher the taper of rotary files, the increased the amount of dentin elimination from the root canal wall and subsequently the risk of root fragility increased [ 40 ].…”

Rotary File Systems Designed Exclusively for Pediatric Patients: A Literature Review

“…Studies have shown similar results using Endogal and Reciproc Blue NiTi endodontic reciprocating systems in canal preparation, but in coronal third, more conservative preparation was seen by Reciproc Blue NiTi endodontic reciprocating system. [17] 8. Reciproc Blue NiTi Rotary file system Reciproc Blue NiTi files ((VDW, Baillagues, Switzerland) function in a reciprocating motion and are made by using CM-Blue Wire NiTi alloy with heat treatment.…”

“…The physical properties of NiTi files get improved by heat treatment. [17] 9. Denco dental Kids files Denco kedo files (Shenzhen Denco medical Ltd., China) are heat activated blue niti files consists of four files #25 (.04 mm tip dia), #25 (.06 mm tip dia), #30 (.04 mm tip dia), #40 (.04 mm tip dia).…”