scholarly journals A influência de diferentes cimentos de obturação de canal na infiltração apical

2021 ◽  
Vol 36 (1) ◽  
pp. 24-26
Author(s):  
Elaine Vianna Freitas Fachin ◽  
Marilia Nedel Sperb ◽  
Tereza Maria Prietsch Kohler
Keyword(s):  
Statistical Analysis ◽  
Root Canal ◽  
In Vitro Study ◽  
Control Group ◽  
Root Canal Sealer ◽  
Dye Penetration ◽  
Root Canal Sealers ◽  
Clearing Method ◽  
Lower Incisors

It is an "in vitro" study to evaluate the sealing ability of 3 root canal sealers using a dye leakage/clearing method. 40 lower incisors were instrumented by the step-back technique and divided into 4 groups. The teeth were filled with lateral condensation of guta-percha varying the root canal sealer. Fill Canal, Sealer 26, N-Rickert were tested and compared to the control group in which guttapercha cones with no seater were used. Linear dye penetration was measured after demineralizatÎon and clearing. Statistical analysÏs showed significant differences among the groups. The lowest leakage values were found in the Fill Canal group followed by the N-Rickert and the Sealer 26 groups.

scholarly journals Właściwości alkalizujące wybranych krzemianowo-wapniowych uszczelniaczy kanałowych. Badanie in vitro

2018 ◽  
Vol 64 (4) ◽  
Author(s):  
Przemysław Reszka ◽  
Łukasz Kucharski ◽  
Adam Klimowicz ◽  
Mariusz Lipski
Keyword(s):  
Root Canal ◽  
Calcium Silicate ◽  
In Vitro Study ◽  
Root Canal Sealer ◽  
Ph Values ◽  
Water Ph ◽  
Ah Plus ◽  
Ph Level ◽  
Root Canal Sealers

ABSTRACTIntroduction: The aim of this in vitro study was to assess the pH values of selected calcium-silicate root canal sealers in comparison with AH Plus resin-based root canal sealer.Materials and methods: Six root canal sealers were included in this study: BioRoot RCS (Septodont, France), GuttaFlow bioseal (Coltėne/Whaledent, Switzerland), MTA Fillapex (Angelus, Brazil), Total Fill BC Sealer (FKG, Switzerland), Well-Root ST (Vericom, Korea) and AH Plus (Dentsply, DeTrey, Germany). Materials samples (n = 6) were placed in dishes and immersed in 10 mL of distilled water (pH = 6.8). After 1, 3, 24, 48, 72, 168, 336 and 504 hrs, water pH was determined with a pH meter calibrated with a solution of known pH. Data were statistically analyzed using Student-t test (p < 0.05).Results: There were differences in the water pH between the materials tested. The highest water pHs were exhibited by Total Fill BC Sealer, Well-Root ST and BioRoot RCS (pH ~12), followed by GuttaFlow bioseal (pH ~10.5) and MTA Fillapex (pH ~9). The lowest pH was shown by AH Plus (pH ~8).Conclusions: All calcium-silicate root canal sealers studied are able to elevate the pH level, which could have biological and antimicrobial effects. The AH Plus root canal sealer has poor alkalizing properties.

scholarly journals Evaluation of the apical microleakage of MTA Fillapex, AH26, and Endofill sealers

2020 ◽  
Vol 23 (3) ◽  
Author(s):  
Saeedeh Galledar ◽  
Robab Farhang ◽  
Malek Abazari ◽  
Parisa Negahdar
Keyword(s):  
Root Canal ◽  
Test Group ◽  
In Vitro Study ◽  
Negative Control ◽  
Vitro Study ◽  
Control Group ◽  
Dye Penetration ◽  
Gutta Percha ◽  
Significant Difference

Objective: Proper apical seal plays an important role in the success of root canal treatment. The most common cause of failure of root canal therapy is known as the lack of adequate apical seal. The aim of this in vitro study was to compare the apical microleakage of MTA Fillapex, , and Endofill sealers using dye penetration method. Material and Methods: In this in vitro study, 72 single-rooted extracted human teeth were selected. The teeth were randomly divided into three experimental groups of 20 and two positive and negative control groups of 6. The canals were prepared by step-back technique and then filled with gutta-percha and one of the sealers mentioned. In the positive control group, the canals were filled with gutta-percha without sealer, and in the negative control group, the canals were prepared but not filled. The teeth were immersed in 2% methylene blue dye for 72 hours. The teeth were then cut longitudinally and the level of dye penetration was measured under a stereomicroscope. Data were analyzed by SPSS ver. 19 software, ANOVA and Bonferroni post-hoc tests. Results: The mean level of dye penetration in the Endofill test group was significantly higher than that in the  and MTA Fillapex test groups. While, the observed difference between  and MTA Fillapex groups was not statistically significant (p<0.05). Conclusion: The results of this study showed that  and MTA Fillapex sealers did not show any significant difference in apical seal properties. However, their sealing strength was significantly greater than Endofill sealer.KeywordsAH26 sealer; Endofill; MTA Fillapex; Microleakag

scholarly journals Comparative evaluation of sealing ability of different obturation materials

2010 ◽  
Vol 138 (5-6) ◽  
pp. 287-291 ◽  
Author(s):  
Irena Melih ◽  
Ankica Jakovljevic ◽  
Milica Popovic ◽  
Dragana Pesic
Keyword(s):  
Root Canal ◽  
In Vitro Study ◽  
Control Group ◽  
Root Canal Filling ◽  
Single Root ◽  
Dye Penetration ◽  
Filling Materials ◽  
Gutta Percha ◽  
Ah Plus

Introduction Root canal filling materials are intended to prevent microleakage and passing of microorganisms and their toxins along the root canal space and into the periradicular tissues. Objective Objective of this in vitro study was to evaluate and compare apical leakage of root canals obturated using a modified warm vertical condensation technique and different materials. Methods Sixty-five extracted single-root teeth were prepared according to the crown-down/ step-back technique. Each canal was rinsed with 3% NaOCl during and after the preparation. The teeth were divided into 3 groups. Every group was obturated by the same technique, but with different materials: RealSeal system (SybronEndo), gutta-percha with AH Plus (Dentsply Maillefer) and gutta-percha with Acroseal sealer (Septodont). The remaining 20 teeth were in the control group. The teeth were immersed in 1% methylene blue for 72 hours. After that period, the roots were split longitudinally, and dye penetration was measured using a stereomicroscope. Results Dye penetration occurred in all groups. The least dye penetration occurred in the RealSeal group (0.33?}0.29 mm), while the highest dye penetration occurred in the Acroseal group (1.11?}0.52 mm). According to the Student's t-test, Acroseal showed significantly more leakage (p<0.001) than RealSeal and AH Plus materials. The microleakage of RealSeal system was not significantly different (p>0.05) from that of AH Plus sealer with gutta-percha. Conclusion The results suggested that new material Resilon (RealSeal) and conventional combination AH Plus with gutta-percha had the least apical dye penetration and provided the best sealing.

scholarly journals Effectiveness of a silicon-based root canal sealer for filling of simulated lateral canals

2007 ◽  
Vol 18 (1) ◽  
pp. 20-23 ◽  
Author(s):  
João Vicente Baroni Barbizam ◽  
Matheus Souza ◽  
Doglas Cecchin ◽  
Jakob Dabbel
Keyword(s):  
Root Canal ◽  
In Vitro Study ◽  
Root Canal Sealer ◽  
Human Teeth ◽  
Significance Level ◽  
Working Length ◽  
Group 3 ◽  
Group 2 ◽  
Silicon Based

The purpose of this in vitro study was to evaluate the ability of a silicon-based root canal sealer, compared to zinc oxide and eugenol and an epoxy resin-based sealers, for filling of simulated lateral canals. Thirty extracted single-rooted human teeth were selected, conventional access was made and the working length was established 1 mm from the apical foramen. Three simulated lateral canals, one in each root third (coronal, middle and apical) were prepared in both the mesial and distal surfaces of each tooth using a size 15 reamer adapted to a low-speed handpiece. Each root canal was instrumented using ProTaper rotary files up to file F3 at the working length, and then irrigated with 2.5% NaOCl followed by EDTA. The teeth were assigned to 3 groups (n=10), according to the root canal sealer: Roeko Seal (Group 1), Sealer 26 (group 2) and Grossman's sealer (Group 3). Gutta-percha cold lateral condensation technique was performed in all groups. Postoperative radiographs were taken and the images were projected for evaluation of the quality of lateral canal filling. Data were submitted to statistical analysis by Kruskal Wallis test at 5% significance level. The results showed that Grossman's sealer filled a larger number of lateral canals than Roeko Seal (p<0.05) and Sealer 26 (p<0.01). It may be concluded that Roeko Seal silicone-based root canal sealer was not as effective as the Grossman's sealer for filling of simulated lateral canals. The lateral canals localized in the apical third of the root were more difficult to be filled.

scholarly journals Comparative Evaluation of Cytotoxicity of Root Canal Sealers on Cultured Human Periodontal Fibroblasts: In vitro Study

2018 ◽  
Vol 19 (7) ◽  
pp. 847-852 ◽  
Author(s):  
Rajesh Shetty ◽  
Pritesh Jagtap ◽  
Arpita Agarwalla ◽  
Parag Wani ◽  
Karan Bhargava ◽  
...  
Keyword(s):  
Root Canal ◽  
Comparative Evaluation ◽  
In Vitro Study ◽  
Vitro Study ◽  
Root Canal Sealers ◽  
Human Periodontal Fibroblasts

scholarly journals Milled versus moulded mock-ups based on the superimposition of 3D meshes from digital oral impressions: a comparative in vitro study in the aesthetic area

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Francesca Cattoni ◽  
Giulia Teté ◽  
Alessandro Mauro Calloni ◽  
Fabio Manazza ◽  
Giorgio Gastaldi ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Test Group ◽  
In Vitro Study ◽  
Mean Value ◽  
Digital Impression ◽  
Control Group ◽  
Minimal Invasiveness ◽  
Significant Difference ◽  
The Aesthetic

Abstract Background Aesthetic porcelain veneers proved to be a long-term reliable prosthetic solution, ensuring minimal invasiveness. The use of veneers requires an adhesive cementation technique, so maintaining as much enamel as possible is to ensure lasting success. A diagnostic mock-up is a key tool that allows a preview of the outcome of the aesthetic restoration: it is obtainable both in an analog and digital way. With the recent developments in impression technology and the ever so fast growing use of CAD-CAM technologies it is useful to understand the pros and cons of either one of these techniques (analog and digital) in order to identify the easier and more convenient workflow in aesthetic dentistry. Methods After taking pictures and impressions of the dental arcs of a patient in need of aesthetic rehabilitation, 52 resin models were produced and a digital drawing of the smile was outlined. Both an analog and a digital wax-up were obtained from two of the 52 models: the latter was obtained using digital impressions and a dedicated software. The analog wax-up was then used to produce 25 matrices that have later been used to mould 25 resin mock-ups using a traditional moulding protocol (Control Group - CG). The digital wax-up was used to mill 25 PMMA mock-ups. Each mock-up, both milled and moulded (total 50), was then laid on the other 50 resin models as a digital impression of it was taken. The STL. files of the milled mock-ups were compared with the 3D CAD wax-up made using a specific software. The STL. files of the analog printed mock-ups were compared with the traditional wax-up design. A statistical analysis was carried out to evaluate the difference between the groups. Results The statistical analysis showed a significant difference (P > 0.01) between the mean value of the distance between the points of the overlapping STL. meshes in GC (0.0468 mm) and in TG (Test Group - TG) (0,0109 mm). Conclusions The study showed a difference in accuracy between traditional moulded and milled mock-ups compared to their original wax-up. The data analysis reports that the digital method allows for greater accuracy. Within the limitations of this study, a fully digital workflow is to considered more reliable when it come to creating an esthetic mockup: the digital procedure has been shown to be more accurate than the one made manually which is much more operator dependent and it brings an increase to the chance of error, and that could ultimately affect the final result.

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