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Apical Transportation (apical + transportation)

Distribution by Scientific Domains

Medical Sciences	100%

Selected Abstracts

Apical transportation created using three different patency instruments

INTERNATIONAL ENDODONTIC JOURNAL, Issue 7 2010
J. A. Gonzalez Sanchez
Gonzalez Sanchez JA, Duran-Sindreu F, Albuquerque Matos M, Garcia Carabaño T, Mercade Bellido M, Morello Castro S, Roig Cayón M. Apical transportation created using three different patency instruments. International Endodontic Journal 43, 560,564, 2010. Abstract Aim, To evaluate root canal transportation at the major foramen through the use of stainless steel size 08 K-Flex files, size 10 reamers, and XF finger spreaders when used as patency instruments. Methodology, One hundred and two mesiobuccal canals of maxillary and mandibular first molars were randomly divided into three groups (34 canals each). Size 08 stainless steel K-Flex files, size 10 stainless steel reamers and stainless steel XF finger spreaders were used as patency instruments in groups A, B and C respectively. The major foramen was photographed before and after instrumentation. The images were superimposed and then evaluated using Photoshop® to determine the frequency of apical transportation. The statistic analysis was performed using ,2test. Results, Transportation was detected in 22% of the specimens; 9% in group A, 12% in group B and 44% in group C. Significant differences were observed between groups A and C (P = 0.0025) and between groups B and C (P = 0.0069), but not between groups A and B (P = 1.00). Conclusions, No transportation was found in the majority of the samples when size 08 K-Flex files and size 10 stainless steel reamers were used. The XF finger spreaders, when used to maintain apical patency, caused the greatest transportation of the major foramen. [source]

Apical transportation: Two assessment methods

AUSTRALIAN ENDODONTIC JOURNAL, Issue 2 2009
Fernanda Ullmann López msc
Abstract Root canal transportation can lead to treatment failure. A large number of methodologies for assessing root canal preparation have been tried in the past. This study compared two methods for apical transportation measurement: digitised images of longitudinal root sections and radiographs. Sixty upper molar mesiobuccal root canals prepared for endodontic treatment were assessed. The results did not demonstrate statistically significant differences between the two imaging methods used to evaluate root canal transportation. The two methods were proven to be equally reliable. [source]

Apical transportation created using three different patency instruments

The influence of root canal shape on the sealing ability of two root canal sealers

INTERNATIONAL ENDODONTIC JOURNAL, Issue 4 2006
A. Juhász
Abstract Aim, To evaluate the influence of root canal form on the sealing ability of two root canal sealers. Methodology, Twenty radiographically confirmed straight and 20 curved root canals were prepared with a stepback hand filing technique. Root canal aberrations created during preparation were determined by the use of double exposure radiographic technique. The prepared canals were filled with lateral condensation of gutta-percha and one or other of two root canal sealers (Pulp Canal Sealer and Sealapex). Leakage along the apical 10 mm of roots was measured with a fluid transport model at 1, 3, 6, 9 and 12-month intervals. Results, There were no statistically significant differences between straight and curved root canals (P > 0.05) for prevalence of root canal transportation. The prevalence of apical transportation was 80% in the straight and 85% in the curved root canals. A complete seal was more frequently observed in straight canals compared with curved canals. Utilizing the ,* index, analysis showed the filling with Sealapex allowed more leakage than Pulp Canal Sealer at 1 year. Conclusion, Under the conditions of the study, root canal form influenced short-term sealing ability. In the long-term the seal was affected by the sealer rather than root canal form. [source]

Comparison of apical transportation between ProFileÔ and ProTaperÔ NiTi rotary instruments

INTERNATIONAL ENDODONTIC JOURNAL, Issue 6 2004
M. K. Iqbal
Abstract Aim, To use a newly developed radiographic technique to compare apical transportation and loss of working length (WL) between .06 taper ProFileÔ Series 29 and ProTaperÔ nickel,titanium (NiTi) rotary instruments in vitro. Methodology, Mesio-buccal canals of 40 extracted mandibular molars were randomly divided into two groups. Group 1 was instrumented with ProFileÔ and group 2 with ProTaperÔ instruments according to the manufacturers' directions. A specially constructed radiographic jig with a Schick digital radiographic system (Schick Technologies Inc., Long Island City, NY, USA) was used to take pre- and postoperative radiographs of the samples at predetermined angulations. Using AutoCAD 2000 (Autodesk Inc., San Rafael, CA, USA), the central axes of initial and final instruments were radiographically superimposed to determine the loss of WL and degree of transportation at D0, D1, D2 and D4 from the WL. Data were analysed using repeated-measures anova. Results, A statistically significant difference in apical transportation was found at the D4 level between the two groups (P = 0.05). There was no statistical significance regarding postinstrumentation change in WL between groups. Spearman's Bivariate Correlation analysis indicated no statistically significant relationship between the radius of curvature and transportation. Conclusion, The results indicate that both ProTaperÔ and ProFileÔ instruments are comparable to each other in regards to their ability to optimally enlarge root canal with minimal transportation and loss of WL in vitro. [source]