To assess & compare depth of penetration of an Epoxy amine based resin sealer in simulated lateral canals after manual, Sonic & Ultrasonic agitation- An in vitro Stereomicroscopic study (original) (raw)
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RGO - Revista Gaúcha de Odontologia, 2018
Objective This study analyzed the influence of the irrigating solutions ultrasonic activation on the obturator cement penetration into lateral root canals. Methods Fifty maxillary molars (palatine root) were randomly assigned to 5 experimental groups (Group 1 (EDTA 17% + manual agitation for 5 minutes), Group 2 (EDTA 17% + ultrasonic activation for 15 seconds), Group 3 (NaOCl 1% + Ultrasonic activation for 15 seconds), Group 4 (EDTA 17% + ultrasonic activation for 15 seconds and NaOCl 1% + ultrasonic activation for 15 seconds) and Group 5 (negative control). The lateral root canals were made in the apical and middle third. The obturation occurred in a single session. The radiographic and microscopic analyzes were performed to evaluate the sealant cement penetration degree. Data were analyzed by the Mann-Whitney and Wilcoxon tests. Results Apical and middle third radiographic analysis showed that Groups 2 and 4 presented better penetration of the sealant cement. In the microscopic analysis, Group 4 presented superior results in relation to the other groups in both thirds. In the apical third, radiographic and microscopic analyzes showed significant differences in the comparisons between Group 4 and Groups 5 (p = 0.019) and 3 (p = 0.023) and between Group 5 and Groups 2 (p = 0.012), 3 (P = 0.038) and 4 (p = 0.019), respectively. Conclusion It was concluded that the ultrasonic activation of the NaOCl 1% + EDTA 17% irrigation solution provides greater penetration of the endodontic cement in lateral root canals.
Ultrasonic Activation of a Bioceramic Sealer and Its Dentinal Tubule Penetration: An In Vitro Study
Annals of International medical and Dental Research, 2018
Background: The root canal sealers form an important component of the three dimensional obturation of the root canals. Moreover, the penetration of the sealers into the dentinal tubules is a desirable phenomenon for their adequate sealing and antibacterial action. The aim of this study was to evaluate the effects of ultrasonic activation on the intratubular penetration of bioceramic root canal sealer. Methods: Eighty extracted human mandibular premolars were divided into 2 groups (n =40) according to the sealer activation method used to obturate the root canals instrumented with F3 Pro-Taper instruments .The canals were obturated using Protaper F3 guttapercha cones. Previously, the bio ceramic sealer was labeled with rhodamine B dye to allow analysis under a confocal microscope. The two groups were: UA (ultrasonically activated) and NA (no activation; control). All samples were sectioned at 3 and 8 mm from the apex. The percentages of dentinal sealer penetration segments of canal were analyzed. Results: Students T test was performed for the statistical analysis and we found that there was a significant increase in tubular penetration for the ultrasonic activation group.Conclusion: Use of ultrasonic activation of a bioceramic sealer promoted greater dentinal sealer penetration.
In vivo evaluation of root canal sealer distribution
Journal of Endodontics, 1995
The effectiveness of sealer placement and its distribution in the prepared root canal system by an energized ultrasonic file was evaluated in vivo. One hundred patients had sealer placed into prepared root canals with either the master gutta-percha cone or an ultrasonic file. Before placement of sealer with the file, canals were irrigated, debrided, and flushed with water for 10 s and an energized #20 ultrasonic file at 1.0 mm from the working length. Canals were obturated with gutta-percha using lateral condensation, and evaluations were based on the presence or absence of sealer-filled accessory canals. Chi-square analysis showed that a statistically significant difference existed in the number of radiographically visible accessory canals filled when the ultrasonic file was used to place the sealer.
Evaluation of Sealing Ability of Three Root Canal Sealers: An In Vitro Study
The Journal of Contemporary Dental Practice
Aim: To evaluate the sealing ability of three different types of sealers using confocal laser microscopy. Materials and methods: Sixty extracted single-root premolars were selected and divided into three groups (20 teeth in each group) according to the type of sealer used, namely, mineral trioxide aggregate (MTA) Fillapex, AH Plus, and Bio C Sealer. Root canal preparation and obturation will be done in all the samples. Roots will be dissected transversely in apical plane. Percentage of gap from region to canal circumference will be calculated using a confocal laser microscope. Samples were subjected to statistical analysis. Results: High dye penetration was seen with AH Plus compared to MTA Fillapex and least with Bio C Sealer. The AH Plus is the best sealer with respect to seal ability of all the three. Conclusion: This study helps to appraise the sealing ability of the different types of sealers using confocal laser microscopy which is useful for the success of root canal treatment. Clinical significance: As sealer has to seal voids, foramina, and canals, it should have good penetration for the success of root canal treatment.
Clinical Oral Investigations, 2015
Introduction The aim of this study was to compare the effect of QMix, BioPure MTAD, 17 % EDTA, and saline on the penetrability of a resin-based sealer into dentinal tubules using a confocal laser scanning microscope (CLSM) and to describe the cleaning of root canal walls by SEM. Methods Eighty distobuccal roots from upper molars were selected and randomly divided into four groups (n=20) before root canal preparation according to the solution used in the final rinse protocol (FRP): QG (QMix), MG (BioPure MTAD), EG (17 % EDTA), and CG (control group: saline). Ten roots of each group were prepared for SEM, and images (×2000) from the canal walls were acquired. The remaining canals were filled with a single gutta-percha cone and AH Plus with 0.1 % Rhodamine B. The specimens were horizontally sectioned at 4 mm from the apex, and the slices were analyzed in CLSM (×10). Sealer penetration was analyzed with Adobe Photoshop software. Results QG and EG presented similar amounts of sealer penetration (P>.05). MG and CG presented the lowest penetrability values (P<.05). The best results for smear layer removal of the apical third of the root canal were achieved by the QG and EG groups when compared with MG and CG (P<.05). Conclusions Seventeen percent EDTA and QMix promoted sealer penetration superior to that achieved by BioPure MTAD and saline. Clinical relevance Despite studies have not confirmed the relationship between sealing ability of endodontic sealers and their penetration in dentinal tubules, sealer penetration assumes importance, since endodontic sealers, unlike guttapercha, are able to penetrate in dentinal tubules, isthmus, and accessory canals, filling the root canal system.
Dental Science Updates
Introduction: Ideal chemo-mechanical preparation with good obturation produces a monoblock and three-dimension hermetic root canal seal. The importance of sealing is the prevention of leakage, reinfection, periapical lesion, and the root fracture. Aim: The purpose of this in vitro study was to evaluate and compare the effect of different irrigating solutions on the apical sealing ability of two sealers (Bioceramic and Resin based sealers). Materials &Methods: One hundred fifty-five extracted human single-rooted mandibular premolars were prepared and classified into three main groups depending on their final irrigation regimens; group A: 17% Ethylene-diamine tetraacetic acid (EDTA), group B: 10% citric, and group C: 16 ppm ozonated water. Each group was subdivided into two subgroups based on the type of sealer applied, subgroup1: TotalFill ® BC Sealer and subgroup 2: AH Plus ® sealer. Each subgroup was then divided into two divisions based on the time of evaluation, T1: immediately after incubation and T2: after 30 days. The Apical Sealing Ability was measured for all samples using fluid infiltration method. Statistical analysis was performed using ANOVA (one-way and three-way) and t-test (paired and unpaired). Statistical significance was considered at P<0.05. Results: In relation to irrigation, the highest apical microleakage mean values were recorded in group B, and the least mean values were recorded in group A, followed by group C. In relation to sealers, the highest mean values were recorded in subgroup1, and the least mean values were recorded in subgroup2. In relation to time, the highest mean values were recorded in division 2 and the least mean values were recorded in division 1. Conclusion: AH plus sealer provided better apical sealing than Totalfill BC sealer. Sealers sealing performance is improved by 17% EDTA and 16 ppm Ozonated water. Apical sealing ability decreased over time, regardless of the irrigation and sealer types used.
Journal of endodontics, 2005
The purpose of this study was to evaluate in vitro the apical seal of root canals prepared with a new rotary system, Anatomic Endodontic Technology (AET) and filled with a methacrylate based endodontic sealer and a single gutta-percha cone and a lateral condensation technique, using the methacrylate based endodontic sealer/filler or Grossman's cement. The root canals of 45 freshly extracted human maxillary anterior teeth were prepared and then randomly assigned to three groups of 15 teeth each. After cleaning and shaping the teeth were obturated as follows: in group 1 the canals were filled with a methacrylate based sealer and a single gutta-percha cone; in group 2 the canals were filled using a lateral condensation technique with gutta-percha and the methacrylate based sealer; and in group 3, the canals were filled by means of lateral condensation of gutta-percha and Grossman's cement (control group). The specimens were stored in 100% relative humidity at 37 degrees C for 7...
International journal of scientific research, 2018
Aims: To compare the sealing ability of a new root canal sealer, Totalfill BC Sealer (FKG Dentaire SA, La Chaux-de-Fonds, Switzerland) with AH Plus Sealer (Dentsply, Tulsa, OK). Methods and Material: Sixty five permanent single rooted, human maxillary central incisors of similar sizes were selected for the study. Fifty teeth were randomly selected for dye penetration and fifteen teeth for Scanning Electron Microscopy. For dye penetration the teeth were divided into two groups of twenty five teeth each. In Group 1 (n=25), Totalfill BC Sealer and in Group 2 (n=25), AH Plus sealer were used as root canal sealers with Gutta-percha cones to obturate the canals. Roots were covered with nail paint except 2.0 mm of root apically and stored in 0.5% methylene blue dye for one week. The teeth were immersed in 7ml of 70% nitric acid for complete dissolution and subjected to UltraViolet spectrophotometer to quantify the concentration of the dye in each sample. For SEM evaluation, fifteen samples were sectioned longitudinally and marginal adaptation of sealers to root dentin was evaluated. Statistical analysis used: The dye leakage of both groups was analyzed using the Independent t-test. Marginal adaptation of sealers to root dentin was analyzed using unpaired student t test. Results:The mean dye leakage in Group 1 (0.36 ± 0.11) was less when compared to Group 2 (0.49 ± 0.12) (P<0.001 highly significant). The SEM study revealed gap-free regions and gap-containing regions in canals filled with both materials. Gap-containing regions in Group 1 were significantly low compared to Group 2. Conclusions: Within the limitations of this study, apical sealing ability and adaptation to the root canal dentin of Totalfill BC sealer is better compared to AH Plus sealer.
Evaluation of Apical Sealing Ability of Three Different Root Canal Sealers
Aim: Evaluation of apical sealing ability of Resilon with Epiphany sealer, gutta-percha with AH plus sealerand gutta-percha with MTA fillapex sealer using dye penetration method. Introduction – Success of root canal treatment highly depends of three dimensional obturation of the root canal system. Solid core gutta percha and sealers is preferred method of obturation of the root canal system. None of the available method are capable of providing a fluid tight seal. Material and Methods: Thirty freshly extracted single rooted premolars were taken and randomly divided into three groups. These teeth were then obturated using following methods. Group I-gutta-percha with AH plus sealer, Group II-gutta-percha with MTA fillapex sealer, Group III-Resilon with Epiphany sealer. All specimens were stored in 100% relative humidity for 48hrs. The teeth were then stored in Rhodamine-B dye for 24hrs and then were sectioned and observed under stereomicroscope. Results: Data obtained was analysed using Mann whiteny 'u' test.There was statistically significant difference among the groups. Group III showed minimum dye leakage and group II showed maximum dye leakage. Conclusion: Resilon Epiphany system showed better apical sealing of the root canal as compared to AH plus and MTA fillapex sealer.
Brazilian oral research, 2015
The aim of this study was to evaluate the penetration of a resin/polyester polymer-based material (Resilon Real Seal; SybronEndo Corp., Orange, USA) into simulated lateral canals, and the quality of obturations by different techniques. A total of 30 standardized simulated canals were divided into three groups according to the technique of obturation used: MS (McSpadden), SB (SystemB/Obtura II), and LC (Lateral Condensation). To analyze the penetration of the filling material, the simulated canals were digitalized and the images were analyzed using the Leica QWIN Pro v2.3 software. The data of the middle and apical thirds were separately submitted to analysis of variance (ANOVA), followed by the Tukey's test for the comparison of the techniques. Results showed a significant difference (p < 0.05) between groups (LC < SB) in the middle third, and a significant difference (p < 0.05) between groups (LC < SB and MS < SB) in the apical third. To analyze the quality of th...