scholarly journals Effect of photo-activated disinfection on bond strength of three different root canal sealers

2014 ◽  
Vol 08 (01) ◽  
pp. 085-089 ◽  
Author(s):  
Evren Ok ◽  
Huseyin Ertas ◽  
Gokhan Saygili ◽  
Tuba Gok
Keyword(s):  
Bond Strength ◽  
Root Canal ◽  
In Vitro Study ◽  
Significant Difference ◽  
Ah Plus ◽  
Group 3 ◽  
Group 5 ◽  
Root Canal Sealers ◽  
Push Out

ABSTRACT Introduction: The aim of this in vitro study was to evaluate the bond strength of Photo-Activated Disinfection (PAD) system to dentin with different root canal sealers by using a push-out test design. Materials and Methods: A total of 30 extracted mandibular premolar teeth with single and straight roots were used. The crowns were removed and the root canals were prepared by using ProTaper rotary files. The smear layer was removed and the roots were randomly divided into two groups (n = 15) according to the use of PAD system as the final disinfecting agent. Each group was then divided into 6 (n = 5) subgroups and obturated with gutta-percha and 3 different root canal sealers. The groups were Group 1: Sodium hypochlorite (NaOCl) + ethylenediaminetetraacetic acid (EDTA)-AH Plus sealer; Group 2: NaOCl + EDTA + PAD-AH Plus; Group 3: NaOCl + EDTA-Sealapex; Group 4: NaOCl + EDTA + PAD-Sealapex; Group 5: NaOCl + EDTA-mineral trioxide aggregate (MTA)-Fiallapex; and Group 6: NaOCl + EDTA + PAD-MTA-Fillapex. 1-mm thickness horizontal sections (n: 5 × 4 = 20) were sliced for the push-out bond strength measurement. Results: Group 3 and 4 showed significantly lower bond strengths compared with all the other groups (P < 0.05). No statistically significant difference was found among Groups 1, 2 and 5, but there was statistically significant difference between Group 5 and 6 (P < 0.05). Conclusion: This in vitro study indicated that the PAD system adversely affected the bond strength of the MTA Fillapex root canal sealer.

scholarly journals Effect of nonthermal atmospheric plasma on the push-out bond strength of epoxy resin-based and bioceramic root canal sealers: An in vitro study

2021 ◽  
Vol 24 (1) ◽  
pp. 41
Author(s):  
Roopadevi Garlapati ◽  
KolluriMohana Chandra ◽  
PraveenKumar Gali ◽  
Bolla Nagesh ◽  
Sayesh Vemuri ◽  
...  
Keyword(s):  
Bond Strength ◽  
Epoxy Resin ◽  
Root Canal ◽  
In Vitro Study ◽  
Vitro Study ◽  
Atmospheric Plasma ◽  
Root Canal Sealers ◽  
Push Out

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 A comparative evaluation of the push-out bond strength of a resin-based sealer (AH Plus™) when two different intermediate irrigants are used, with and without a root canal brush: In vitro study

Endodontology ◽  
2019 ◽  
Vol 31 (1) ◽  
pp. 57
Author(s):  
ShaliniDevindernath Aggarwal ◽  
Ishan Ahmed ◽  
Anita Sanap ◽  
Vinay Rai ◽  
Swapnil Khadtare ◽  
...  
Keyword(s):  
Bond Strength ◽  
Root Canal ◽  
Comparative Evaluation ◽  
In Vitro Study ◽  
Vitro Study ◽  
Ah Plus ◽  
Push Out

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 Micro-push-out bond strength of Mineral—based root canal sealer in canals with different tapers.

2021 ◽  
Vol 10 (1) ◽  
pp. 1-7
Author(s):  
Nunna Vasavi ◽  
◽  
Kantheti Sirisha ◽  
Keyword(s):  
Bond Strength ◽  
Root Canal ◽  
Testing Machine ◽  
Root Canal Sealer ◽  
Rotary Instruments ◽  
Significant Difference ◽  
Ah Plus ◽  
Bond Strengths ◽  
The Difference ◽  
Push Out

Objective: The aim of this study was to assess the micro-push-out bond strength of a mineral-based root canal sealer, BioRoot RCS in canals prepared by K3XF rotary systems of two different tapers. Material and Methods: Eighty caries free maxillary central incisors were used in this study. The samples were allocated into 4 groups (n=20) according to the root canal sealer and taper of the rotary instruments. The samples were obturated using single cone obturation technique. From each root 1mm thick slices at coronal, middle and apical thirds were collected using hard tissue microtome under continuous water coolant. Push-out tests were done for these sections using a Universal testing machine (INSTRON 8801) at a crosshead speed of 1mm/min. One-way analysis of variance (ANOVA) was used to compare the bond strengths within groups and Tukey’s multiple post hoc analysis was used for pair-wise comparison of bond strengths. Results: AH Plus exhibited higher micro-push-out bond strength than BioRootRCS though they did not differ significantly (p>0.05). Preparation of root canals with 6% taper rotary instruments showed higher bond strength than 4% though they did not differ significantly (p>0.05). Conclusion: There was no significant difference between micro-push-out bond strength values of BioRoot RCS and AH Plus. The bond strength values were high in 6% taper canals than 4% canals though the difference was not significant statistically.

scholarly journals Bond Strength of Experimental Root Canal Sealers Based on MTA and Butyl Ethylene Glycol Disalicylate

2018 ◽  
Vol 29 (2) ◽  
pp. 195-201 ◽  
Author(s):  
Marina Carvalho Prado ◽  
Nancy Kudsi de Carvalho ◽  
Rafael Pino Vitti ◽  
Fabrício Aulo Ogliari ◽  
Luciana Moura Sassone ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Bond Strength ◽  
Root Canal ◽  
Bonferroni Correction ◽  
Solution Ph ◽  
Ah Plus ◽  
Materials Used ◽  
Root Canal Sealers ◽  
Push Out ◽  
Alpha Type

Abstract This study investigated the bond strength of two experimental root canal sealers based on MTA and butyl ethylene glycol disalicylate: MTAe and MTAe-HA. The reference materials used for comparison were AH Plus and MTA Fillapex. Twenty human upper incisors were selected and one 1 mm slice was obtained from the cervical third of each root. On the coronal surface of each slice, four 0.9 mm wide holes were drilled through the dentine. Standardized irrigation was performed and holes were filled with one of the four tested sealers: AH Plus, MTA Fillapex, MTAe, and MTAe-HA. The filled slices were stored in a PBS solution (pH 7.2) for 7 days at 37 °C. A push-out assessment was performed with a 0.7 mm plunger tip. Load was applied at a crosshead speed of 0.5 mm/min until sealer displacement. The results were expressed in MPa. The Kruskal-Wallis test was applied to assess the effect of each sealer on the push-out bond strength. Mann-Whitney with Bonferroni correction was used to isolate the differences. The alpha-type error was set at 0.05. Significant differences among medians values obtained by materials were observed (p<0.001). AH Plus displayed the highest value of bond strength (p<0.001). In contrast, MTA Fillapex presented the lowest bond strength among all tested sealers (p<0.001). Experimental sealers showed intermediary bond strength values, with no statistical differences between them (p>0.05). In conclusion, experimental root canal sealers presented suitable bond strength outcomes when compared to MTA Fillapex.

scholarly journals Evaluation of dentinal defects during root canal preparation using thermomechanically processed nickel-titanium files

2017 ◽  
Vol 11 (02) ◽  
pp. 157-161 ◽  
Author(s):  
Bertan Kesim ◽  
Burak Sagsen ◽  
Tugrul Aslan
Keyword(s):  
Root Canal ◽  
In Vitro Study ◽  
Nickel Titanium ◽  
Rotary Motion ◽  
Control Group ◽  
Continuous Rotation ◽  
Significant Difference ◽  
Group 5 ◽  
Group 2

ABSTRACT Objective: The aim of this study was to compare the incidence of root cracks after root canal instrumentation with thermomechanically processed nickel-titanium (Ni-Ti) files with different instrumentation kinematics. Materials and Methods: A total of 150 extracted mandibular premolars with mature apices and straight root canals were divided into five groups and used in this study. In Group 1, 30 teeth were prepared using hand K-files and assigned to control group, Group 2 was instrumented using K3XF Rotary files (SybronEndo, Glendora, CA, USA) with continuous rotary motion. The teeth in Group 3 were instrumented by ProTaper Next (Dentsply Maillefer, Ballaigues, Switzerland) rotary files which make asymmetric rotary motion, In Group 4, teeth were instrumented by RECIPROC (VDW, Munich, Germany) with reciprocation motion and in Group 5, teeth were instrumented by Twisted File (TF) Adaptive (SybronEndo, Orange, CA, USA) files that use combination of continuous rotation and reciprocation motion (n = 30/per group). All the roots were horizontally sectioned 3, 6, and 9 mm from the apex with a low speed saw under water cooling. Then, the slices were examined through a stereomicroscope to determine the presence of dentinal microcracks.Results: For the apical (3-mm) and coronal (9-mm) sections, the ProTaper Next and TF Adaptive produced significantly more cracks than the hand files, RECIPROC, and K3XF (P < 0.05). There was no significant difference between the experimental groups and control group at the 6-mm level (P > 0.05). Conclusions: Within the limitations of this in vitro study, all thermal-treated Ni-Ti instruments and hand files caused microcracks in root canal dentin.

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