scholarly journals Evaluation of Sealing Ability of AH Plus And TG Root Canal Sealers in the Presence and Absence of Smear Layer

2015 ◽  
Vol 1 (2) ◽  
pp. 10-17
Author(s):  
Tahir Ali Khan ◽  
Nighat Shafique ◽  
Mumtaz -Ul- Islam ◽  
Raham Zaman
Keyword(s):  
Root Canal ◽  
T Test ◽  
Smear Layer ◽  
Blue Dye ◽  
P Value ◽  
Sealing Ability ◽  
Nail Polish ◽  
Ah Plus ◽  
Presence And Absence ◽  
Root Canal Sealers

Background:Smear layer is considered to be the main contributing factor in better sealing and adhesion of a sealer.Objective:The aim of this study is to determine the sealing ability of two root canal sealers (AH Plus and tg). In the presence and absence of smear layerMethodology:Extracted teeth from patients visiting Sardar Begum Dental College 60 in numbers were used in this study. Specimens were divided in to two main groups (group1 and group 2) both groups were instrumented using a step back technique. Irrigation was done during instrumentation with one ml of 5.25% NaOCl solution. In group2 a final flush with 10 ml of 17% EDTA solution followed by 10ml of 5.25% NaOCl was used for smear layer removal. Each group then further divided in to two sub groups (n=15). After obturation specimens were kept in separate containers with wet gauze to maintain 100% humidity. The specimens were coated with nail polish except for apical 2mm. Specimens were then suspended vertically in two % methylene blue dye for 7 days. Longitudinal sectioning was done to determine the extent of dye penetration using a stereo microscope at X30 magnification. Student t test was used for statistical analysis (p≤ 0.05).Results:The results showed that in the presence of smear layer, mean apical dye leakage of AH Plus was2.89 mm and tg was 4.02 mm. While in the absence of smear layer the mean dye leakage of AH Plus was 2.23 mm and tg was 3.28 mm. Student t test was more than p value indicating non significant result for both sealers.Conclusion:Apical sealing ability of AH Plus is better than tg root canal sealer in the presence and absence of smear layer.

scholarly journals Sealing ability of two commonly used root canal sealers with and with out smear layer

2014 ◽  
Vol 2 (4) ◽  
pp. 327
Author(s):  
Nazish Fatima ◽  
Mehwish Hussain
Keyword(s):  
Smear Layer ◽  
Repeated Measure ◽  
Time Interval ◽  
Sealing Ability ◽  
Nail Polish ◽  
Ah Plus ◽  
Time Periods ◽  
Group 2 ◽  
Crown Roots ◽  
Group 1

AIM: The aim of current research was to find out the sealing ability of two commonly used sealers in the presence and absence of smear layer at different time interval. MATERIAL AND METHODS: Total of 180 single rooted vital teeth were used. Transversal section was made with the help of digital slow speed cutting saw to divide the root and crown part. After removal of crown roots part was instrumented and prepared. The 180 teeth were randomly divided into two equal groups (n=90) 1 and 2. In group 1 the smear layer was kept intact but it was removed from group 2 with EDTA (17%). Group 1 was then divided into two sub-groups, A1, A2. Group 2 was again separated into two sub-groups, B1 and B2. Each sub-group contained of 45 samples. In sub-groups A1 and B1, AH Plus sealer, in sub-groups A2 and B2, Ketac-endo sealer and cold lateral condensation technique was used for obturation with gutta percha. All samples were kept in an incubator at 37°C for 24 hours, with help of nail polish/varnish all samples root surfaces was painted only excluding apical area after words each sub group were further divided in to three groups of 15 to represent immersion periods of 7,15 and 30 days. All samples were then kept in 5 % methylene blue dye solution at 37o c for their respective time periods. After specific time period, the roots of every group were cut longitudinally and evaluate under a stereomicroscopes to evaluate apical micro leakage in millimeter. Data was subjected to Repeated measure ANOVA with post-hoc analysis using Tukey and bonferroni tests. RESULTS: Overall analysis indicated significant reduction in sealing ability canals in with and without smear layer over different time periods (p <0.0001). CONCLUSION: Current study has concluded that AH plus sealer provides significantly better seal in the absence of smear layer than in the presence of smear layer in addition it gave better seal than Ketac-Endo sealer in the absence and presence of smear layer.

Bacterial Penetration along Different Root Canal Fillings in the Presence or Absence of Smear Layer in Primary Teeth

2014 ◽  
Vol 38 (3) ◽  
pp. 229-234 ◽  
Author(s):  
R Sisodia ◽  
KS Ravi ◽  
ND Shashikiran ◽  
S Singla ◽  
V Kulkarni
Keyword(s):  
Zinc Oxide ◽  
Root Canal ◽  
Primary Teeth ◽  
Smear Layer ◽  
P Value ◽  
Test Model ◽  
Sealing Ability ◽  
Zinc Oxide Eugenol ◽  
Significant Difference ◽  
Bacterial Penetration

Aims: To study the effect of the smear layer on the penetration of bacteria along different root canal fillings and to compare the sealing ability of new endodontic material Apexit plus as compared to Zinc Oxide Eugenol (ZOE) in primary teeth. Study design: A total of 60 human root segments were instrumented for endodontic treatment. Half of the sample size was irrigated with normal saline and in other half, 3% NaOCl, 3% H2O2 and 17% EDTA was used alternatively as irrigant during instrumentation. The roots were rinsed thoroughly with distilled water and sterilized by autoclaving for 20 min at 121 ± 2 °C. Roots with and without smear layer were obturated with Apexit plus, Zinc oxide eugenol. Following storage in humid conditions at 37°C for 2 days, the specimens were mounted into a bacterial leakage test model for 180 days. Results: At 180 days, there is statistically significant difference with a P value of &lt; 0.05 among all groups except ZOE -smear and -nonsmear. In the presence of smear layer, Apexit plus demonstrated more leakage. No leakage was observed in ZOE groups. ZOE demonstrated better sealing ability than Apexit plus. Conclusions: Removal of smear layer helps in better resistance to bacterial penetration along Apexit plus root canal fillings but no effect is seen along ZOE root canal fillings.

scholarly journals Improved sealing ability promoted by calcium silicate-based root canal sealers

2018 ◽  
Vol 17 ◽  
pp. 1-8
Author(s):  
Tatiana Vieira de Melo ◽  
Marina Carvalho Prado ◽  
Raphael Hirata Junior ◽  
Sandra Rivera Fidel ◽  
Emmanuel João Nogueira Leal da Silva ◽  
...  
Keyword(s):  
Root Canal ◽  
Calcium Silicate ◽  
Rank Test ◽  
Survival Curves ◽  
Sealing Ability ◽  
Significant Difference ◽  
Ah Plus ◽  
Negative Controls ◽  
Root Canal Sealers ◽  
Positive Controls

Aim: This study investigated the sealing ability produced by AH Plus (Dentsply DeTrey, Konstaz, Germany), EndoSequence BC sealer (Brasseler USA, Savannah, GA, USA), GuttaFlow (Coltène/Whaledent, Altstätten, France) and MTA Fillapex (Angelus, Londrina, Brazil). Methdos: A total of forty-six single-root human canines were prepared and randomly divided into four experimental groups (n=10): MTA Fillapex, EndoSequence BC Sealer, AH Plus or GuttaFlow. Teeth with intact crowns served as negative controls (n=3) and teeth filled with only gutta-percha served as positive controls (n=3). Teeth were mounted in a two-chamber apparatus and exposed to Enterococcus faecalis. The number of days over a 60-days period was recorded for the appearance of turbidity in the lower chamber. Kaplan-Meier method was used to estimate the survival curves. The nonparametric log-rank test was used to compare the survival curves using a significance level of 0.05. Results: The results at the end of the observation time were further analyzed by chi-square testing. All positive controls leaked within 24 h, whereas none of the negative controls leaked after 60 days. EndoSequence BC Sealer and MTA Fillapex had significant less bacterial leakage (P<0.05) than the other tested sealers. No significant difference between AH Plus and GuttaFlow was observed (P>0.05). Conclusion: In conclusion, calcium-silicate based root canal sealers promoted improved sealing ability when compared to other endodontic sealers.

scholarly journals Assessment of Marginal Adaptation and Sealing Ability of Root Canal Sealers: An in vitro Study

2017 ◽  
Vol 18 (12) ◽  
pp. 1130-1134 ◽  
Author(s):  
Vimal Remy ◽  
Vineesh Krishnan ◽  
Tisson V Job ◽  
Madhavankutty S Ravisankar ◽  
CV Renjith Raj ◽  
...  
Keyword(s):  
Root Canal ◽  
Mineral Trioxide Aggregate ◽  
In Vitro Study ◽  
Marginal Adaptation ◽  
Root Canals ◽  
Sealing Ability ◽  
Significant Difference ◽  
Ah Plus ◽  
Root Canal Sealers

ABSTRACT Aim This study aims to compare the marginal adaptation and sealing ability [mineral trioxide aggregate (MTA)-Fillapex, AH Plus, Endofill sealers] of root canal sealers. Materials and methods In the present study, the inclusion criteria include 45 single-rooted extracted mandibular premolar teeth, with single canal and complete root formation. The sectioning of the samples was done at the cementoenamel junction using a low-speed diamond disc. Step-back technique was used to prepare root canals manually. The MTA-Fillapex, AH Plus, and Endofill sealers were the three experimental sealer groups to which 45 teeth were distributed. Under scanning electron microscope (SEM), marginal gap at sealer and root dentin interface were examined at coronal and apical halves of root canal. Results Among the three maximum marginal adaptations were seen with AH Plus sealer (4.10 ± 0.10) which is followed by Endofill sealer (1.44 ± 0.18) and MTA-Fillapex sealer (0.80 ± 0.22). Between the coronal and apical marginal adaptation, significant statistical difference (p = 0.001) was seen in AH Plus sealer. When a Mann–Whitney U-test was done on MTA-Fillapex sealer vs AH Plus sealer and AH Plus sealer vs Endofill sealer, there was a statistically significant difference (p < 0.05) found between the above two groups at coronal and apical third. Conclusion The present study proves that AH Plus sealer has a better marginal adaptation when compared with other sealers used. Clinical significance For sealing space of crown wall and main cone in root canal treatment, sealers play an important role. The other advantages of sealers are that they are used to fill voids and irregularities in root channel, secondary, lateral channels, and space between applied gutta-percha cones and also act as tripper during filling. How to cite this article Remy V, Krishnan V, Job TV, Ravisankar MS, Raj CVR, John S. Assessment of Marginal Adaptation and Sealing Ability of Root Canal Sealers: An in vitro Study. J Contemp Dent Pract 2017;18(12):1130-1134.

scholarly journals Comparative study of the sealing ability of a polydimethylsiloxane-based root canal sealer

2005 ◽  
Vol 16 (2) ◽  
pp. 145-148 ◽  
Author(s):  
Nickolaos Economides ◽  
Beltes Panagiotis ◽  
Ioannis Kolokouris ◽  
Christos Gogos ◽  
Ioannis Kokorikos
Keyword(s):  
Root Canal ◽  
Fluid Transport ◽  
Transport Model ◽  
Smear Layer ◽  
The Other ◽  
Human Teeth ◽  
Root Canals ◽  
Gutta Percha ◽  
Sealing Ability ◽  
Root Canal Sealers

The purpose of this study was to compare the sealing ability of three root canal sealers, RSA (polydimethylsiloxane sealer), Endion (glass-ionomer sealer) and Topseal (epoxy resin sealer), with and without smear layer removal. Ninety extracted human teeth were selected and assigned to 6 groups (n=15), according to the following protocols: in 3 groups, the smear layer was left intact and the root canals were obturated with gutta-percha points and RSA, Endion and Topseal, respectively; in the other 3 groups, the smear layer was removed and the root canals were obturated in the same way as described above. Microleakage was measured at 7 days, 1 month and 2 months, using the fluid transport model. The results were expressed in µL/24 h. Data were analyzed statistically by Kruskall-Wallis and Mann-Whitney non-parametric tests. The results showed that the Topseal group without smear layer leaked significantly less (p<0.05) than the RSA group without smear layer, at all experimental periods. No statistically significant differences (p>0.05) were found among the other groups, at the established evaluation intervals. The findings of this study showed that the polydimethylsiloxane sealer (RSA) did not yield better sealing ability than the other sealers, either in the presence or in the absence of smear layer. Topseal had the least microleakage from the root canal sealers evaluated.

scholarly journals A comparative study of apical microleakage of different root canal sealers by apical dye penetration

2017 ◽  
Vol 16 (2) ◽  
pp. 219-224
Author(s):  
Ashok Ayer ◽  
TR Manandhar ◽  
Navin Agrawal ◽  
Mannu Vikram ◽  
Pramita Suwal
Keyword(s):  
Standard Deviation ◽  
Root Canal ◽  
Medical Science ◽  
Mean Value ◽  
Blue Dye ◽  
Gutta Percha ◽  
Anterior Teeth ◽  
Significant Difference ◽  
Ah Plus ◽  
Root Canal Sealers

Objective: This study was designed to compare the level of apical microleakage of root canal sealers; Acroseal, AH Plus, Endoflas FS and Endomethasone N, with laterally condensed gutta percha by level of apical dye penetration.Materials and Methods: Freshly extracted sixty permanent maxillary anterior teeth were divided randomly into four groups. Shaping and cleaning of teeth was done followed by obturation with gutta percha and four different root canal sealers. Samples were immersed in 2% methylene blue dye solution in individual dappen dish and stored in the solution for 30 days. The roots were split longitudinally with a chisel in two halves and observed under stereomicroscope. Apical microleakage measured from the apex to the most coronal extent of dye penetration.Results: Minimum microleakage was observed with AH Plus with mean value 2.140 mm, standard deviation 0.817. The maximum microleakage was observed with Endomethasone N with mean value 3.858 mm, standard deviation 1.840. There was no statistically significant difference in microleakage between Acroseal, AH Plus, and Endoflas FS. Endomethasone N showed highest level of microleakage than other three groups under the test condition, which was statistically significant.Conclusion: The microleakage was the lowest for the AH Plus and increased in the following order, Endoflas FS, Acroseal, Endomethasone N.Bangladesh Journal of Medical Science Vol.16(2) 2017 p.219-224

scholarly journals Sealability of Different Root Canal Nanosealers: Nano Calcium Hydroxide and Nano Bioactive Glass

2019 ◽  
Vol 13 (1) ◽  
pp. 308-315
Author(s):  
Asmaa A. Desouky ◽  
Maged M. Negm ◽  
Magdy M. Ali
Keyword(s):  
Zinc Oxide ◽  
Bioactive Glass ◽  
Calcium Hydroxide ◽  
Root Canal ◽  
Blue Dye ◽  
Nano Powder ◽  
Zinc Oxide Eugenol ◽  
Nail Polish ◽  
Stereo Microscope

Background: The success of the endodontic treatment is largely dependent on the sealing achieved by root canal obturation. The application of sealer fills imperfections and increases adaptation of the root filling to the canal walls. Aim: To evaluate the sealability of experimental nanosealers (nano calcium hydroxide and nano bioactive glass) and to compare it with the commercial zinc oxide eugenol sealer using a dye penetration method. Materials and Methods: Sixty single-rooted mandibular premolars were selected. The tooth crowns were removed so as to obtain standardized 15-mm-long root specimens. The root canal was instrumented with Protaper Ni-Ti rotary file and the final file size was up to # F4/.06 (in vitro study). They were then randomly allocated into 3 groups of 20 specimens each (n=20) according to the sealer used for obturation, and all samples were filled with single cone gutta-percha (#40/06) and one of the tested sealers. All teeth were coated with nail polish and then suspended in 2% methylene blue dye for 7 days. Stereo-microscope (x10) was used to evaluate the sealability of newly introduced nanosealers. The data were statistically analyzed by ANOVA test followed by post hoc analysis (P < 0.05). Results: Significant improvement shown by the presented study suggests that nano calcium hydroxide sealer showed significantly less dye leakage than nano bioactive glass sealer and zinc oxide eugenol sealer. Conclusion: The results of this study showed that the synthesized nano-powder sealers are suitable for use in root canal therapy to prevent leakage. The root canal can be sealed better by using smaller nano-powder particle sizes. In addition, the two groups exhibited significant differences in leakage in comparison with commonly used ZOE sealer.

scholarly journals Evaluation of Apical Sealing Ability of Four Different Sealers using Centrifuging Dye Penetration Method: An in vitro Study

2012 ◽  
Vol 13 (6) ◽  
pp. 830-833
Author(s):  
Romel Joseph
Keyword(s):  
In Vitro Study ◽  
Blue Dye ◽  
Control Groups ◽  
Root Canals ◽  
Dye Penetration ◽  
Gutta Percha ◽  
Sealing Ability ◽  
Ah Plus ◽  
And Control

ABSTRACT Aim The aim of this in vitro study was to evaluate the apical seal obtained with four root canal sealers AH 26, Sealapex, Endoflas FS and AH Plus, with lateral condensation. Materials and methods Sixty root canals were prepared using the step-back technique. The specimens were divided into four experimental groups of 12 teeth and two control groups of 12 teeth. The experimental groups were obturated by laterally condensed gutta-percha with one of the tested sealers and control groups were obturated without any sealer. Methylene blue dye penetration with centrifuging method was used to evaluate the apical sealing ability. The quantitative apical leakage of each specimen was measured after 2 weeks. Results The results showed no significant differences between all groups except between AH Plus and Endoflas FS (<0.05). AH Plus showed significantly less leakage than Endoflas FS. Conclusion AH Plus showed the least leakage compared to AH 26, Sealapex and Endoflas FS. How to cite this article Joseph R, Singh S. Evaluation of Apical Sealing Ability of Four Different Sealers using Centrifuging Dye Penetration Method: An in vitro Study. J Contemp Dent Pract 2012;13(6):830-833.

scholarly journals COMPARATIVE EVALUATION OF THE DISSOLVING EFFECT OF RC SOLVE, EUCALYPTUS OIL AND G-SOL ON AH PLUS ROOT CANAL SEALER - AN INVITRO STUDY

2021 ◽  
Vol 9 (01) ◽  
pp. 984-990
Author(s):  
Malavika Mohan ◽  
◽  
Meenakshi R. Verma ◽  
Ashish K. Jain ◽  
Rahul D. Rao ◽  
...  
Keyword(s):  
Root Canal ◽  
P Value ◽  
Root Canal Sealer ◽  
Initial Weight ◽  
Eucalyptus Oil ◽  
Significant Difference ◽  
Final Weight ◽  
Ah Plus ◽  
The Difference ◽  
Endodontic Retreatment

Context: Use of root canal solvents has increased the success rate of endodontic retreatment and it has made the procedure faster and simpler. Aims: During retreatment, a solvent facilitates the removal of obturation material and root canal sealer by softening it, so as to obtain a root canal free of debris and microorganisms. Hence an invitro study was done to evaluate and compare the dissolving effect of RC Solve, Eucalyptus oil and G-sol on AH Plus Root Canal Sealer. Methods and Material: Thirty standardized stainless-steel rings filled with AH Plus sealer manipulated according to manufacturers instructions were prepared and placed ten minutes for complete setting in an incubator at 37°C for 48 hours and weighed to obtain the initial weight. The samples were divided into three equal groups of 10 each and immersed in RC Solve, Eucalyptus oil and G-sol for 10 minutes and dried in an incubator at 37°C for 24 hours and weighed again for final weight. The amount of sealer lost was determined by calculating the difference between initial and final weight. Results: The dissolving effect of AH Plus sealer on all three solvents showed a marked amount of weight loss (p<0.05). The best dissolving capability on AH Plus sealer was exhibited by Eucalyptus oil followed by RC Solve and least for G-Sol. The result of the ANOVA with a p-value of 0.004 indicated a significant difference of weight change of AH Plus sealer after immersion into RC Solve, Eucalyptus Oil and G-Sol. Conclusions: Based on the findings of this study, it was concluded that Eucalyptus oil has a slightly better solvent effect.

scholarly journals The Penetration Ability of Calcium Silicate Root Canal Sealers into Dentinal Tubules Compared to Conventional Resin-Based Sealer: A Confocal Laser Scanning Microscopy Study

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 531 ◽  
Author(s):  
Yemi Kim ◽  
Ban-Suk Kim ◽  
Yong-Min Kim ◽  
Donghee Lee ◽  
Sin-Young Kim
Keyword(s):  
Root Canal ◽  
Laser Scanning ◽  
Laser Scanning Microscopy ◽  
Confocal Laser ◽  
Intensity Level ◽  
Single Cone ◽  
Penetration Ability ◽  
Ah Plus ◽  
Root Canal Sealers ◽  
Apical Area

The purpose of this study was to compare the penetration ability of calcium silicate root canal sealers and conventional resin-based sealer using confocal laser scanning microscopy (CLSM). A total of 60 recently extracted single-rooted human premolars were used in this study. The root canals were prepared to a size 40/0.06 taper with ProFile rotary instruments and irrigated with NaOCl and EDTA. After drying all canals, the specimens were randomly divided into three experimental groups (n = 20): Group 1, gutta-percha (GP)/AH Plus with continuous wave compaction; group 2, GP/BioRoot RCS with a single-cone technique; and group 3, GP/Endoseal MTA with a single-cone technique. All experimental samples were sectioned perpendicular to their long axis using a low-speed diamond wheel at the apical, middle, and coronal third levels. The penetration abilities of all samples were evaluated using CLSM. A Kruskal–Wallis analysis and a series of Mann–Whitney U post hoc tests were performed. A higher intensity level was found in the coronal area and a lower intensity level in the apical area in all the experimental groups. The AH Plus group showed higher sum fluorescence intensity in the apical and coronal thirds compared with the BioRoot RCS and Endoseal MTA groups, whereas the BioRoot RCS group showed a higher intensity level in the middle third, similar to the AH Plus group. The maximum sealer penetration depth was low in the apical area and high in the coronal area in the AH Plus and Endoseal MTA groups. In the BioRoot RCS group, maximum sealer penetration was observed in the middle third. In conclusion, there were significant differences in sealer penetration pattern and distance according to the root level and sealer type.

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