scholarly journals In-vitro evaluation of apical microleakage of two obturation methods of immature permanent teeth: orthograde apical plug of Mineral Trioxide Aggregate and root canal filling combining custom gutta-percha cone with Calcium Silicate-based sealer

2017 ◽  
Vol 31 (2) ◽  
pp. 89-95
Author(s):  
Rami Hamdan ◽  
Jérôme Michetti ◽  
Claire Dionnet ◽  
Franck Diemer ◽  
Marie Georgelin-Gurgel
Keyword(s):  
Root Canal ◽  
Calcium Silicate ◽  
Mineral Trioxide Aggregate ◽  
Permanent Teeth ◽  
Root Canal Filling ◽  
In Vitro Evaluation ◽  
Gutta Percha

scholarly journals In-vitro evaluation of apical microleakage of two obturation methods of immature permanent teeth: orthograde apical plug of Mineral Trioxide Aggregate and root canal filling combining custom gutta-percha cone with Calcium Silicate-based sealer

2017 ◽  
Vol 31 (2) ◽  
pp. 89-95
Author(s):  
Rami Hamdan ◽  
Jérôme Michetti ◽  
Claire Dionnet ◽  
Franck Diemer ◽  
Marie Georgelin-Gurgel
Keyword(s):  
Silver Nitrate ◽  
Root Canal ◽  
Mineral Trioxide Aggregate ◽  
Optical Microscope ◽  
Permanent Teeth ◽  
Root Canal Filling ◽  
Filling Materials ◽  
Gutta Percha ◽  
The Difference

Aim: The aim of this study was to assess whether an obturation, combining a custom guttapercha cone with the BIOROOTTM-RCS sealer, displays similar sealing quality to the orthograde apical plugs of MTA CAPS1 in immature teeth with irregular wide apices. Methodology: Thirty-four immature permanent premolars with apical diameter varying between (1-3 mm) were chosen for this study and were divided into two groups. They were imbedded in wet sponge, which simulated the periapex. In the first group; 5 mm orthograde plugs of MTAwere placed using an appropriate plugger. In the second group; a custom gutta-percha cone was fabricated and used for root canal filling with the BIOROOTTM-RCS sealer. The specimens were stored at 37 8C and 100% humidity during five weeks to allow the complete set of the filling materials. The apical leakage was evaluated using a dye penetration test with 50%-weight silver-nitrate. The teeth were then embedded in a transparent resin and sectioned transversally at 1 and 3 mm from the apex. The slices were examined under optical microscope and were given scores from (0) to (4). When scoring a slice was difficult, spectroscopy for energy dispersion using a scanning electron-microscope was used to confirm the score. The results were compared using the Fisher test with p < 0.05. Results: Silver-nitrate was found in both groups in all slices at 1 mm. At 3 mm, the difference of micro-leakage was not significant. Conclusions: The custom gutta-percha cone combined with BIOROOTtm-RCS sealer displays similar leakage resistance to the orthograde MTA plugs.

scholarly journals Comparison of apical sealing ability of resected mineral trioxide aggregate, gutta-percha and a resin-based root canal filling material (resilon)

2011 ◽  
Vol 10 (51) ◽  
pp. 10516-10519
Author(s):  
Froughreyhani Mohammad ◽  
Salem Milani Amin ◽  
Rahimi Saeed ◽  
Shakouie Sahar ◽  
Fateh Somaieh
Keyword(s):  
Root Canal ◽  
Mineral Trioxide Aggregate ◽  
Filling Material ◽  
Root Canal Filling ◽  
Gutta Percha ◽  
Sealing Ability

scholarly journals A Silk Fibroin Based Hydration Accelerator for Root Canal Filling Materials

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 994
Author(s):  
Ching-Shuan Huang ◽  
Sung-Chih Hsieh ◽  
Nai-Chia Teng ◽  
Wei-Fang Lee ◽  
Poonam Negi ◽  
...  
Keyword(s):  
Cell Viability ◽  
Silk Fibroin ◽  
Root Canal ◽  
Setting Time ◽  
Testing Machine ◽  
Mineral Trioxide Aggregate ◽  
Filling Material ◽  
Root Canal Filling ◽  
Initial Setting Time

Mineral trioxide aggregate (MTA) is widely used in various dental endodontic applications such as root-end filling, furcal perforation repair, and vital pulp therapy. In spite of many attempts to improve handling properties and reduce the discoloration of MTA, the ideal root canal filling material has yet to be fully developed. The objective of this study was to investigate the setting time, mechanical properties, and biocompatibility of MTA set by a silk fibroin solution. A 5 wt% silk fibroin (SF) solution (a novel hydration accelerant) was used to set SavDen® MTA and ProRoot® white MTA (WMTA). Changes in setting time, diametral tensile strength (DTS), material crystallization, in vitro cell viability, and cell morphology were assessed by Vicat needle measurement, a universal testing machine, scanning electron microscopy (SEM), and WST-1 assay, respectively. The initial setting time of ProRoot® MTA and SavDen® MTA experienced a drastic decrease of 83.9% and 42.1% when deionized water was replaced by 5 wt% SF solution as the liquid phase. The DTS of SavDen® MTA showed a significant increase after set by the SF solution in 24 h. A human osteoblast-like cell (MG-63)-based WST-1 assay revealed that both ProRoot® MTA and SavDen® MTA hydrated using SF solution did not significantly differ (p > 0.05) in cell viability. MG-63 cells with pseudopodia attachments and nuclear protrusions represent a healthier and more adherent status on the surface of MTA when set with SF solution. The results suggest that the 5 wt% SF solution may be used as an alternative hydration accelerant for MTA in endodontic applications.

scholarly journals Root Canal Filling Quality of a Premixed Calcium Silicate Endodontic Sealer Applied Using Gutta-percha Cone-mediated Ultrasonic Activation

2018 ◽  
Vol 44 (1) ◽  
pp. 133-138 ◽  
Author(s):  
Jung-Ae Kim ◽  
Yun-Chan Hwang ◽  
Vinicius Rosa ◽  
Mi-Kyung Yu ◽  
Kwang-Won Lee ◽  
...  
Keyword(s):  
Root Canal ◽  
Calcium Silicate ◽  
Ultrasonic Activation ◽  
Root Canal Filling ◽  
Gutta Percha

scholarly journals Comparison of root canal filling quality by mineral trioxide aggregate and gutta percha cones/AH plus sealer

2016 ◽  
Vol 35 (4) ◽  
pp. 644-650 ◽  
Author(s):  
Wonkyung JHO ◽  
Jeong-Won PARK ◽  
Euiseong KIM ◽  
Minju SONG ◽  
Deok-Gyu SEO ◽  
...  
Keyword(s):  
Root Canal ◽  
Mineral Trioxide Aggregate ◽  
Root Canal Filling ◽  
Gutta Percha ◽  
Ah Plus

scholarly journals Management of Traumatic Inflammatory External Root Resorption

2019 ◽  
Vol 15 (1) ◽  
pp. 71-74
Author(s):  
Shikha Bantawa ◽  
Navin Agrawal ◽  
Mannu Vikram ◽  
Vimmi Singh ◽  
Ashok Ayer ◽  
...  
Keyword(s):  
Root Canal ◽  
Root Resorption ◽  
Clinical Symptoms ◽  
Mineral Trioxide Aggregate ◽  
Radiographic Examination ◽  
Apical Region ◽  
Dental Tissue ◽  
Root Canal Filling ◽  
Gutta Percha ◽  
External Root Resorption

Inflammatory external  root resorption is one of the major complications after traumatic dental injury. It is characterized by the loss of mineralized dental tissue which may, ultimately, result in loss of the tooth.    However, with appropriate treatment, prognosis for these teeth may be greatly improved, by preventing or arresting resorption. This is a case report of an 18-year-old male patient presented with root canal treated maxillary central incisors associated with pain; with history of trauma. Radiographic examination revealed periradicular lesion and associated pathologic resorption of the apical region of the root with respect to 11 and calcification of the root canal with inadequate obturation with respect to 21. After removal of the root canal filling, 11 was disinfected with intracanal double antibiotic paste. After 2 weeks, antibiotic dressing was removed, and apical third was sealed with mineral trioxide aggregate (MTA). Canal was obturated with custom-fit gutta-percha and accessory cones with AH plus sealer and restoration was done with composite resin. Retreatment was also done with respect to 21 and obturated with custom-fit gutta-percha. Both teeth were restored with E-max crown. No clinical symptoms were apparent, significant osseous healing of the periradicular region was observed with arrest of external root resorption with respect to 11 and no periapical changes were apparent with respect to 21 on subsequent  follow-up.

scholarly journals Root Surface Temperature Increases during Root Canal Filling In Vitro with Nd:YAG Laser-Softened Gutta-Percha

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Błażej Podolak ◽  
Alicja Nowicka ◽  
Krzysztof Woźniak ◽  
Liliana Szyszka-Sommerfeld ◽  
Włodzimierz Dura ◽  
...  
Keyword(s):  
Nd:Yag Laser ◽  
Root Canal ◽  
In Vitro Study ◽  
Root Surface ◽  
Yttrium Aluminium Garnet ◽  
Root Canal Filling ◽  
Infrared Thermal Imaging ◽  
Temperature Changes ◽  
Gutta Percha

The aim of this in vitro study was to measure the temperature increases produced on the mesial and vestibular root surfaces of premolar teeth during a laser-softened gutta-percha obturation technique. We studied 12 extracted human premolar teeth with a single canal. After root canal cleaning and shaping, the teeth were obturated with gutta-percha that had been softened with a neodymium-doped yttrium aluminium garnet (Nd:YAG) laser (CTL 1503) at a wavelength of 1.064 nm. The laser setup parameters included a 30 Hz frequency and a 200 mJ/pulse with optical fiber tips of 0.320 mm diameter. A sectional warm gutta-percha condensation was used. Temperature changes on the whole mesial and vestibular outer surfaces of the roots were measured at approximately 2 s intervals with an infrared thermal imaging camera. A significantly higher increase in temperature was observed for the mesial root surface (7.5°C) compared to the vestibular surface (3.7°C) (p≈0). The findings suggested that root canal filling with Nd:YAG laser-softened gutta-percha in premolar teeth is not likely to damage the surrounding periradicular tissues. To obtain valid temperature results, the measurement should be performed on the surface with the thinnest root wall.

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