scholarly journals Micro-Computed Tomography (Micro-CT) Evaluation of Effects of Different Rotary Glide Path Techniques on Canal Transportation and Centering in Curved Root Canals

2019 ◽  
Vol 25 ◽  
pp. 6351-6358
Author(s):  
Gabrielė Česaitienė ◽  
Tadas Venskutonis ◽  
Vita Mačiulskienė ◽  
Vaidotas Cicėnas ◽  
Vykintas Samaitis ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Micro Ct ◽  
Micro Computed Tomography ◽  
Root Canals ◽  
Glide Path ◽  
Ct Evaluation ◽  
Canal Transportation ◽  
Curved Root Canals

scholarly journals Shaping ability of 2Shape and NeoNiTi rotary instruments in preparation of curved canals using micro-computed tomography

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ibrahim Faisal ◽  
Rajab Saif ◽  
Mona Alsulaiman ◽  
Zuhair S. Natto
Keyword(s):  
Computed Tomography ◽  
Permanent Teeth ◽  
Micro Ct ◽  
Micro Computed Tomography ◽  
Root Canals ◽  
Group I ◽  
Significant Difference ◽  
Canal Transportation ◽  
Shaping Ability ◽  
Curved Root Canals

Abstract Background Various systems of nickel-titanium (NiTi) instrument have long been commercially available. However, the preparation of narrow and curved root canals has always been challenging. The purpose of this study was to compare the shaping ability of two NiTi systems (2Shape and NeoNiTi) in severely curved root canals with different morphological patterns using micro-computed tomography (Micro-CT). Methods A total of 22 human extracted permanent teeth of mandibular first molars, with the exact mesial angle of curvature of 25 and 35 degrees, according to Schneider’s technique, were distributed randomly into two groups (group I: 2Shape, group II: NeoNiTi) based on the rotary system used (n = 22). The groups were subdivided into two subgroups corresponding to the angle of canal curvature (25° and 35°) (n = 11). Canals were scanned using Micro-CT pre- and post-preparation to assess the volume of dentin removed; canal transportation; and canal centering ratio at 3, 6, and 9 mm from the apex. The Mann–Whitney U test was utilized to determine any significant differences between the two systems. The level of statistical significance was set at p < 0.05. Results There was no significant difference between the two groups in volume of dentin removed; canal transportation; and centering ability for 25° and 35° canal curvatures at 3, 6, and 9 mm from the apex (coronal, middle, and apical) thirds (p > 0.05). At the middle third, the NeoNiTi group demonstrated a statistically significant increase in volume of dentin removed for 35° canal curvatures compared to the 2Shape group. Conclusion Within the limitation of our in vitro study, 2Shape and NeoNiTi systems with severely curved canals were confirmed to be relatively safe in preparation and to respect original canal anatomy. Nevertheless, NeoNiTi instruments produced more centered preparation and minimal canal deviation compared to the 2Shape system.

scholarly journals Comparison of canal transportation and centering ability of manual K-files and reciprocating files in glide path preparation: a micro-computed tomography study of constricted canals

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Jing-Yi Liu ◽  
Zhi-Xiong Zhou ◽  
Wei-Ju Tseng ◽  
Bekir Karabucak
Keyword(s):  
Computed Tomography ◽  
Clinical Approach ◽  
Reciprocating Motion ◽  
Micro Computed Tomography ◽  
Root Canals ◽  
Glide Path ◽  
Significant Difference ◽  
Canal Transportation ◽  
Group 2 ◽  
Group 1

Abstract Background Optimum Glide Path (OGP) is a new reciprocating motion aiming to perform efficient glide path preparation in constricted canals. The aim of this study was to investigate and compare manual and OGP movement in terms of canal transportation and centering ability in glide path preparation of constricted canals. Methods Thirty constricted mesial root canals of mandibular molars, with initial apical size no larger than ISO#8, were selected and negotiated with #6–#8 K-files under the microscope. Canals were randomly divided into two experimental groups: Group 1 (MAN, n = 15): Glide path was established by using #10-#15 stainless steel K-files manually; Group 2 (OGP, n = 15): #10-#15 Mechanical Glide Path super-files were used with OGP motion (OGP 90°, 300 rpm). Each instrument was used to prepare only 2 canals (as in one mesial root). Canals were scanned before and after glide path preparation with micro-computed tomography (micro-CT) to evaluate root canal transportation and centering ratio at 1, 3 and 5 mm levels from the root apex. File distortions and separations were recorded. Paired t-test was used to statistically evaluate the data (P < .05). Results Group 2 showed a significantly lower transportation value than group 1 at 1-mm and 3-mm levels (P < .05), however the difference at 5-mm level was not significant. There was no significant difference regarding the centering ratio between the groups. Six #10 K-files were severely distorted in group 1, while no file separation or distortion was found in group 2. Conclusions OGP motion performed significantly less canal transportation (apical 3 mm) and file distortion during glide path establishment in constricted canals comparing to manual motion, while the centering ability between the two was similar. Clinical relevance OGP reciprocating motion provides a safer and efficient clinical approach compared to traditional manual motion in glide path establishment with small files in constricted canals.

scholarly journals A micro-CT evaluation of the performance of rotary and reciprocating single-file systems in shaping ability of curved root canals

2020 ◽  
Vol 34 ◽  
Author(s):  
Manoel Damião SOUSA-NETO ◽  
Bruno Monguilhott CROZETA ◽  
Fabiane Carneiro LOPES ◽  
Jardel Francisco MAZZI-CHAVES ◽  
Rodrigo Dantas PEREIRA ◽  
...  
Keyword(s):  
File Systems ◽  
Micro Ct ◽  
Root Canals ◽  
Single File ◽  
Ct Evaluation ◽  
Shaping Ability ◽  
Curved Root Canals

Efficacy of ProTaper NEXT Compared with Reciproc in Removing Obturation Material from Severely Curved Root Canals: A Micro–Computed Tomography Study

2016 ◽  
Vol 42 (5) ◽  
pp. 803-808 ◽  
Author(s):  
Giselle Nevares ◽  
Diana S. de Albuquerque ◽  
Laila G. Freire ◽  
Kaline Romeiro ◽  
Howard M. Fogel ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Micro Computed Tomography ◽  
Root Canals ◽  
Curved Root Canals

Efficacy of different solvents in removing gutta-percha from curved root canals: A micro-computed tomography study

2013 ◽  
Vol 40 (2) ◽  
pp. 76-80 ◽  
Author(s):  
Baran Can Sağlam ◽  
Mustafa Murat Koçak ◽  
Sevinç Aktemur Türker ◽  
Sibel Koçak
Keyword(s):  
Computed Tomography ◽  
Micro Computed Tomography ◽  
Root Canals ◽  
Gutta Percha ◽  
Curved Root Canals
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