scholarly journals Sealing Ability of Endodontic Cements: An In Vitro Study

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Amira Kikly ◽  
Sabra Jaâfoura ◽  
Dorra Kammoun ◽  
Saida Sahtout
Keyword(s):  
In Vitro Study ◽  
Resin Cement ◽  
Apical Region ◽  
Filling Material ◽  
Root Canals ◽  
Gutta Percha ◽  
Sealing Ability ◽  
Adhesive Dentistry ◽  
Significant Difference

The root canal system must be obturated using a hermetic seal to prevent the penetration of microorganisms and bacterial toxins into the endodontic system. The principles of adhesive dentistry have been increasingly used in endodontics. In fact, resin-based sealers are increasingly used. The objective of this study was to evaluate, in vitro, the sealing ability of resin cement in comparison with calcium hydroxide-based cement. Materials and Methods. Eighty root canals were prepared with the Tilos system and were randomly divided into four groups according to the filling material. The best combination was evaluated on the basis of its sealing ability. The dye infiltration degree was evaluated using both a stereomicroscope after diaphanization and the dye rise test. Results. A significant difference was observed between the four obturation systems with regard to the number of infiltrated walls (p=0.014) and the infiltration depth (p=0.025). The group of teeth obturated with EndoREZ® and EndoREZ® gutta cones differ significantly from the group obturated with EndoREZ® cement and gutta-percha cones in terms of apical sealing (p=0.011). A significant difference was also observed between the group of teeth obturated using EndoREZ® gutta cones and EndoREZ® cement and the group of teeth obturated with EndoREZ® cement (p=0.026). Conclusion. When used with EndoREZ® gutta cones, EndoREZ® cement showed the best sealing ability, particularly in the apical region. When used with gutta-percha cones, Acroseal and EndoREZ® cements exhibited similar sealing abilities.

scholarly journals Effectiveness of Three Rotary Niti Instruments and Hand Instrumentation in Removing Gutta Percha from Root Canals: an in vitro Study

2015 ◽  
Vol 03 (03) ◽  
pp. 152-158
Author(s):  
Varun Jindal ◽  
Ajay Chhabra ◽  
◽  
Keyword(s):  
In Vitro Study ◽  
Radiographic Analysis ◽  
Filling Material ◽  
Universal System ◽  
Root Canals ◽  
Gutta Percha ◽  
Significant Difference ◽  
Niti Instruments ◽  
Hand Instrumentation

Abstract Objectives: The study aimed to assess variation in the remaining filling material by radiographic analysis and the time taken for retreatment system, with H-files; the ProTaper Universal Retreatment System; Mtwo retreatment system and the SybronEndo K3. Methods: 120 human mandibular premolars with single straight root canals were prepared with rotary twisted files (up to size 40/0.04) using the crown down technique and filled by cold lateral condensation and the radiographs were taken. After one week, teeth were divided into four groups (n = 30). Gutta-percha was removed using H-files, the ProTaper Universal Retreatment System, Mtwo system and the K3 System. After retreatment radiographs were taken for each sample and the remaining material was calculated for each canal third. Results: Rotary NiTi instruments were significantly faster than the hand instrumentation technique in performing the retreatment. In radiographic analysis there was significant difference in between the groups for coronal third in ProTaper group and for apical third in H-file group. Conclusions: In the radiographic analysis the ProTaper Universal System left less filling material in the coronal third and the H-files left less filling material in apical third as compared to other groups. Rotary instruments worked faster than H files.

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 Study of Sealing Ability of Different Filling Materials for Root End: An In Vitro Evaluation

2020 ◽  
Author(s):  
Shagun Bhatia ◽  
Ankush Jain ◽  
Himanshu Sood ◽  
Kanu Jain
Keyword(s):  
Mineral Trioxide Aggregate ◽  
Apical Region ◽  
Filling Material ◽  
Depth Of Penetration ◽  
Sealing Ability ◽  
India Ink ◽  
Group I ◽  
Retrograde Filling ◽  
Significant Difference

Abstract Introduction Failure in surgical endodontic techniques can occur most commonly due to improper seal in the apical region. The root-end filling material used should not allow the contamination of the periapical tissue. The aim of the present study was to compare the ability of white mineral trioxide aggregate (MTA), white Portland cement (PC) and intermediate restorative material (IRM) for sealing root-end by dye leakage test. Materials and Methods 120 teeth with single root were prepared through instruments. Following obturation, the apex was cut, and a cavity was made. Then, the teeth were divided into four groups (Group I: MTA, Group II: white PC, Group III: IRM, Group IV: control). Cavities made at apex in the first three groups were then filled with the respective materials. Exposure to the dye, India Ink, was then done for a time period of 72 hours. The depth of penetration of dye inside the whole root was then evaluated with a magnification of 16X under stereomicroscope in vitro. Result MTA showed statistically significant difference in sealing ability (p < 0.05) as compared with other materials. Conclusion MTA cement showed better sealing ability. It is an ideal retrograde filling material, because it is a biocompatible material and has a good marginal adaptation as compared with PC which, in turn, showed better sealing ability than IRM.

scholarly journals In vitro evaluation of apical microleakage using different root-end filling materials

2006 ◽  
Vol 14 (1) ◽  
pp. 49-52 ◽  
Author(s):  
Márcia Carneiro Valera ◽  
Carlos Henrique Ribeiro Camargo ◽  
Alessandra Sverberi Carvalho ◽  
Eduardo Ramalho Pereira Gama
Keyword(s):  
Zinc Oxide ◽  
Root Apex ◽  
Tissue Fluid ◽  
Filling Material ◽  
Human Teeth ◽  
Root Canals ◽  
Filling Materials ◽  
Gutta Percha ◽  
Significant Difference

The objective of this study was to evaluate the apical leakage of retrograde cavities filled with Portland Cement (Concrebrás S/A-MG-Brazil), ProRoot MTA TM (Dentsply International, Johnson City, TN, USA) and Sealapex (Kerr Corporation, Orange, California, USA) with addition of zinc oxide (Odahcam Herpo Produtos Dentários Ltda, Rio de Janeiro, RJ, Brazil). Forty-two extracted single-rooted human teeth were decoronated and used for this study. The root canals were instrumented at 1.0mm short of the apical foramen using the step-back technique to an apical ISO size 60. The roots were obturated with gutta-percha points and sealer Sealapex (Kerr Corporation-USA) and then 3mm of each root apex was sectioned at a 90° angle. Ultrasonic retrograde preparation was performed with a diamond tip to 3mm depth and the roots were randomly divided into 3 groups according to the filling material: G1-Portland, G2-ProRoot MTA, G3- Sealapex zinc oxide-added cement. The root surfaces were covered with nail varnish up to 2mm from the apical foramen, immersed in simulated tissue fluid for 30 days, and then immersed in 0.2% Rhodamine B solution for 24 hours for evaluation of marginal leakage. The results showed mean leakage of 0.75, 0.35 and 0.35 for groups 1, 2 and 3, respectively; however, Kruskal-Wallis test revealed that there was no statistically significant difference among the results (p>0.05).

scholarly journals An In-vitro Study to Determine the Sealing Ability of Biodentine when used as a Class II Restorative Material

2020 ◽  
Author(s):  
Deebah Choudhary
Keyword(s):  
Base Material ◽  
In Vitro Study ◽  
Class Ii ◽  
Vitro Study ◽  
Blue Dye ◽  
P Value ◽  
Filling Material ◽  
Sealing Ability ◽  
Significant Difference

Introduction: Microleakage is a major setback to restorative dentistry. Leakage at the tooth/restoration interface may lead to numerous problems like postoperative sensitivity, recurrent caries, marginal sealing and later total failure of restoration. Aim: To determine the sealing ability (microleakage) of a new hydraulic calcium silicate cement (Biodentine) as a base material and a bulk filling material. Materials and Methods: An in-vitro study was conducted with ten freshly extracted maxillary molars from March 2019 to June 2019. Standardised Class II cavities were prepared on mesial and distal proximal surfaces. The twenty prepared samples were randomly divided into two groups (n=10)- G1 (BiodentineTM group) and G2 (BiodentineTM + Tetric N-Ceram group). The samples were subjected to thermocycling, followed by 1% methylene blue dye immersion. They were subsequently sectioned both buccolingually and mesiodistally in order to separate to proximal restorations (mesial and distal) and appreciate the amount of dye penetration at tooth/restoration interface respectively. Microleakage was evaluated by observing the samples under a stereomicroscope (30x). The data obtained was analysed using one-way ANOVA test and compared using Post-hoc test. p-value <0.05 to be considered significant. Results: Biodentine showed no significant difference between the sealing ability as a bulk filling and a base material. Group G2 (0.35) indicated comparatively less microleakage as compared to Group G1 (0.6) but the difference in microleakages in both groups was insignificant (p-value 0.083467). Conclusion: BiodentineTM exhibits microleakage when used as a bulk filling material and as a dentin substitute in Class II cavities since there is no significant difference in both the groups.

scholarly journals Evaluation of apically extruded debris during removal of gutta-percha and ResilonTM using different instrumentation techniques

2018 ◽  
Vol 75 (1) ◽  
pp. 56-61
Author(s):  
Dragana Pesic ◽  
Irena Melih ◽  
Veljko Kolak ◽  
Ana Nikitovic ◽  
Ankica Jakovljevic
Keyword(s):  
Treatment Success ◽  
In Vitro Study ◽  
Filling Material ◽  
Gutta Percha ◽  
Rotary Instruments ◽  
Apical Extrusion ◽  
Significant Difference ◽  
Ah Plus ◽  
Endodontic Retreatment

Background/Aim. Apical extrusion of material is considered as one of the very important factor for endodontic treatment success. Microorganisms, necrotic tissue, filling material and irrigants, which can be extruded apically during endodontic retreatment, may jeopardize the success of the therapy. The aim of this in vitro study was to quantitatively evaluate the amount of apically extruded debris during endodontic retreatment of teeth obturated with two different materials, using one hand and three rotary instrumentation techniques. Methods. Ninety-six extracted single-rooted teeth were endodontically treated and enlarged to size 40 using BioRaCe system, and then randomly divided into 8 groups of 12 specimens each. Half of the specimens were obturated with gutta-percha and AH Plus? sealer and another half with RealSeal SE system, using lateral condensation technique. Retreatment was performed using: Hedstr?m files; ProFile rotary files; ProTaper Retreatment system and D-RaCe system. Apically extruded debris was collected in pre-weighed Eppendorf tubes and evaluated using an electronic microbalance. Data were analyzed statistically using t-test and analysis of variance. Results. In the AH Plus/gutta-percha group, all tested rotary instruments gave significantly less extruded debris compared with Hedstr?m files (p < 0.05). In theRealSeal group, there was significant difference between DRaCe and Hedstr?m instruments (p < 0.05). Conclusion. All retreatment techniques resulted in apical extrusion. DRaCe system produced significantly less extruded debris compared to hand files. No significant difference was found when comparing two instruments specially designed for retreatment: D-RaCe and ProTaper systems.

scholarly journals Comparative Evaluation of Efficacy of Three Different Rotary Retreatment Systems with Manual Instrumentation in Removing Gutta-Percha from Root Canals – An In Vitro Study

2021 ◽  
Vol 10 (14) ◽  
pp. 1025-1029
Author(s):  
Aparna V. Muraleedhar ◽  
Sarvapelli Venkata Satish ◽  
Ashwini M. Patil ◽  
Suresh Kumar Kovvuru ◽  
Snehalatha Patil
Keyword(s):  
In Vitro Study ◽  
Lower Amount ◽  
Filling Material ◽  
Root Canals ◽  
Gutta Percha ◽  
Residual Material ◽  
Group 2 ◽  
Post Hoc ◽  
Endodontic Retreatment

BACKGROUND The primary goal of endodontic retreatment is to take out the root filling completely to ensure that the canal is completely cleaned. Gutta percha removal using hand instruments is a time-consuming procedure and tedious for the operator. Therefore, various nickel titanium instruments have been introduced for the effective retrieval of gutta percha. This study was done to compare the efficacy of three different rotary systems compared with manual instrumentation for gutta percha removal during retreatment. METHODS Forty-eight single rooted premolars were prepared and obturated using gutta percha and AH Plus sealer using lateral compaction technique. Samples were randomly divided into four groups of 12 specimens each. Group 1 was retreated with Hedstrom Files (H-Files), group 2 was retreated with pro taper universal retreatment files (PTUR), group 3 with R-Endo retreatment files and group 4 with Neoendo retreatment files. Time taken for the retreatment was recorded for each tooth using a stopwatch. The samples were sectioned longitudinally and observed under a stereomicroscope. Digital images were taken and analysed using digital image analysing software. The data was statistically analysed using Kruskal-Wallis and Post-hoc Mann-Whitney test. RESULTS The Neoendo group showed significantly lower amount of residual material compared to PTUR, R-Endo and the H-Files (P = 0.00). The maximum residual material was observed in the H file group. The time taken for gutta percha removal was least for the Neoendo group followed by PTUR, R-Endo and H-Files. CONCLUSIONS None of the instruments were able to remove the filling material completely. Gutta percha removal using Neoendo and protaper universal retreatment files were faster and more efficient compared to REndo and H files. KEY WORDS Endodontic Retreatment, Protaper Universal Retreatment Files, R-Endo, Neoendo, HFiles

scholarly journals In vitro study of effect of solvent on root canal retreatment

2002 ◽  
Vol 13 (3) ◽  
pp. 208-211 ◽  
Author(s):  
Kazumi Onaga Nagayama Oyama ◽  
Evandro Luiz Siqueira ◽  
Marcelo dos Santos
Keyword(s):  
In Vitro Study ◽  
The Other ◽  
Orange Oil ◽  
Root Canals ◽  
Effect Of Solvent ◽  
Gutta Percha ◽  
Root Canal Retreatment ◽  
Significant Difference ◽  
Made In

The aim of this study was to assess the effectiveness of five different solvents: xylol, eucalyptol, halothane, chloroform and orange oil on softening gutta-percha in simulated root canals. One drop of solvent was placed into a reservoir made in a simulated canal whose channel was previously instrumented and filled with gutta-percha and N-Rickert sealer. After 5 min, softening was evaluated for each solvent by the penetration of a spreader while applying force with a 442 Instron apparatus to reach a depth of 5 mm. The results were analyzed statistically by the Kruskal-Wallis test. Xylol and orange oil were better in softening gutta-percha than the other solvents. There was no significant difference between xylol and orange oil, but these were statistically different from eucalyptol, halothane and chloroform (p<0.01).

scholarly journals Comparative assessment of manual, rotary and reciprocating instruments for removal of root fillings, using stereomicroscope: An in vitro study

2019 ◽  
Vol 45 (1) ◽  
pp. 54-61
Author(s):  
Afzal Ali ◽  
Sazid Hussain ◽  
Sandeep Metgud ◽  
Shashank Mishra ◽  
Ankita Sharma ◽  
...  
Keyword(s):  
Root Canal ◽  
File Systems ◽  
In Vitro Study ◽  
Filling Material ◽  
Root Canal Filling ◽  
Root Canals ◽  
Tukey Test ◽  
Gutta Percha ◽  
Reciprocating Instruments

Background: To investigate the efficiency of Hedstrom (H; Dentsply Maillefer) file, Protaper Universal Retreatment system (PTUR; Dentsply Maillefer), Mani NRT-GPR files (Mani, Japan) and WaveOne (WO; Dentsply Maillefer) Reciprocating files in removing Gutta Percha (GP) and sealer from root canals. Methods: Sixty canals with less than 10° curvature from extracted human maxillary incisors were used. Root canal reinstrumentation was performed with H, PTUR, Mani NRT-GPR and WO files. Amount of residual root filling material (Gutta-percha and or sealer) were measured by using stereomicroscope. Data of GP or sealer remnants were statistically analyzed using one-way analysis of variance and Tukey test. Results: There were no significant differences among 4 groups in terms of residual root filling material in the apical third (p > 0.05). H-file group showed highest amount of root residual root filling as compared to groups. Conclusions: Reciprocating file system proved to be more efficient in removing the root canal fillings material than other retreatment file systems. H file group showed highest amount of root canal filling material. Bangladesh Med Res Counc Bull 2019; 45: 54-61

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