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.

An in vitro Evaluation of Antimicrobial Efficacy of Primary Root Canal Filling Materials

2012 ◽  
Vol 37 (1) ◽  
pp. 59-64 ◽  
Author(s):  
Hegde Sapna ◽  
Lala Priti Kamlesh ◽  
B Dinesh Rao ◽  
AB Shubha
Keyword(s):  
Zinc Oxide ◽  
Calcium Hydroxide ◽  
Sodium Fluoride ◽  
Root Canal ◽  
Antimicrobial Efficacy ◽  
Root Canal Filling ◽  
Root Canals ◽  
Filling Materials ◽  
Zinc Oxide Eugenol

Objective: The present study aimed to evaluate and compare six different materials commonly used for filling the root canals of primary teeth for antimicrobial efficacy against some of the microorganisms commonly found in infected root canals. Study design: In this experimental in vitro study six root canal filling materials were tested for antimicrobial efficacy against eight microbial strains using the agar diffusion method. Results: Zinc oxide eugenol paste exhibited the strongest antimicrobial potential followed by Endoflas™, zinc oxide-calcium hydroxide-sodium fluoride mixture, zinc oxide-calcium hydroxide mixture and calcium hydroxide paste (Apexcal™). The addition of sodium fluoride to the zinc oxide-calcium hydroxide mixture enhanced the antimicrobial efficacy. Metapex™ demonstrated minimal inhibition and Vaseline™ was non-inhibitory. Conclusions: All the test filling materials demonstrated varying antimicrobial activity against the microorganisms tested. Zinc oxide eugenol paste and materials containing zinc oxide were found to be more effective against the microorganisms compared to materials without zinc oxide.

Leakage evaluation in vitro of two calcium hydroxide and two zinc oxide-eugenol-based sealers

1987 ◽  
Vol 13 (7) ◽  
pp. 336-338 ◽  
Author(s):  
Antonio Rothier ◽  
Mario Roberto Leonardo ◽  
Idomeo Bonetti ◽  
Ary J.D. Mendes
Keyword(s):  
Zinc Oxide ◽  
Calcium Hydroxide ◽  
Zinc Oxide Eugenol

scholarly journals A Cross-Sectional Study on the Preference of Root Canal Sealers Among Pediatric Dentists For Obturating Permanent Teeth

2020 ◽  
Vol 11 (SPL4) ◽  
pp. 226-232
Author(s):  
Lakshmi Lakshmanan ◽  
Subramanian EMG ◽  
Ganesh Jeevanandan ◽  
Mebin George Mathew
Keyword(s):  
Zinc Oxide ◽  
Calcium Hydroxide ◽  
Root Canal ◽  
Cross Sectional Study ◽  
Permanent Teeth ◽  
Cross Sectional ◽  
Zinc Oxide Eugenol ◽  
Significant Difference ◽  
Pediatric Dentists ◽  
Root Canal Sealers

Utilisation of root canal sealers to perform obturation procedures is an endorsed method in endodontics and has an indispensable role in the success of treatment. The objective of this study was to explore the pediatric dentists’ preference for root canal sealers for obturating permanent teeth. 360 permanent teeth with gutta-percha obturation done by pediatric dentists were analyzed for the study. The variety of root canal sealers that are utilised for obturating the permanent teeth by pediatric dentists were assessed. The data were obtained from a patient management software. Chi-square test was performed. Out of the 360 permanent teeth, 186 teeth were obturated using resin-based sealers, 101 teeth using zinc oxide eugenol-based sealers and 73 teeth were obturated using calcium hydroxide-based sealers, with statistically significant difference between the three materials (P<0.05). Based on the findings of the present study, resin sealers followed by zinc oxide eugenol sealers and calcium hydroxide sealers were more preferred by pediatric dentists for root canal therapy in permanent teeth. 

scholarly journals Volumetric Assessment of Root Canal Obturation Using 3% Nano-Chitosan Versus Zinc Oxide Eugenol (ZOE) and Iodoform-Calcium Hydroxide (Metapex), in Primary Root Canals Shaped with Rotary Versus Manual Methods: A Preliminary In-Vitro Spiral CT Study

2019 ◽  
Author(s):  
Elahe Babashahi ◽  
Maryam Mohmadi Kartalaie ◽  
Leila Basir ◽  
Vahid Rakhshan4
Keyword(s):  
Zinc Oxide ◽  
Calcium Hydroxide ◽  
Primary Root ◽  
In Vitro Study ◽  
The Other ◽  
Root Canals ◽  
Zinc Oxide Eugenol ◽  
Volumetric Assessment ◽  
The Difference

Objectives: In this study, chitosan was introduced and used as a substitute for pulpectomy obturation against conventional materials: zinc oxide eugenol (ZOE) and iodoform-calcium hydroxide (Ca(OH)2) compounds. Also, efficacies of rotary versus manual instrumentations were compared. Materials and Methods: This preliminary in-vitro study was performed on 152 intact non-resorbed root canals of primary molars divided into rotary (n=78) versus hand-instrumentation (n=74) and also into ZOE (n=53), iodoform-Ca(OH)2 (n=50), and 3% nano-chitosan (n=49). Canals were cleaned/shaped using hand or rotary files. Canal spaces were measured using spiral computed tomography (CT). Canals were then obturated using the three materials. The percentages of obturation volume (POV) were estimated. Rotary and manual instrumentations were compared in terms of canal spaces before and after obturation. Three obturation materials were compared in terms of canal spaces after obturation (α=0.05). Results: Average POVs of materials were 96.54% (ZOE), 97.87% (Metapex), and 74.74% (nano-chitosan; P=0.000). POV of chitosan differed from the other two (P=0.000) but the other two were similar (P=0.896). Average POVs were 91.46% (manual) and 88.51% (rotary); the difference was not significant (P=0.322). Pre-obturation spaces of canals for different methods were 3.89 mm3 (manual) and 3.26 mm3 (rotary); the difference was significant (P=0.013). Two-way ANCOVA showed a significant effect of materials (P=0.000) but not root length (P=0.585) or shaping methods (P=0.362) on POVs. Conclusions: Nano-chitosan showed a considerable success rate but it still needs reformulation as it was weaker than the extremely successful commercial competitors. Rotary instrumentation can provide results similar to hand-filing in terms of POV although it might yield smaller canals.

scholarly journals Comparative Evaluation of Calcium Hydroxide and Zinc Oxide Eugenol as Root Canal Filling Materials for Primary Molars: A Clinical and Radiographic Study

2011 ◽  
Vol 2 (3) ◽  
pp. 231-236 ◽  
Author(s):  
Shikha Dogra
Keyword(s):  
Zinc Oxide ◽  
Calcium Hydroxide ◽  
Root Canal ◽  
Primary Teeth ◽  
Radiographic Examination ◽  
Filling Material ◽  
Root Canal Filling ◽  
Zinc Oxide Eugenol ◽  
Group I ◽  
Group Ii

ABSTRACT Aim The purpose of this study is to compare the efficacy of calcium hydroxide and zinc oxide eugenol as a root canal filling material in primary teeth using endodontic pressure syringe system. Materials and methods A total of 40 primary mandibular molars were selected and divided into two groups-group I (calcium hydroxide was used as root canal filling material) and group II (zinc oxide eugenol used as canal filling material). Clinical review was undertaken at 1, 3, 6 and 9 months interval for evaluating pain, tenderness, mobility and any other sign of pathology. Radiographic examination was done at interval of 3, 6 and 9 months for the evaluation of any change in the radiolucency around the apices and inter-radicular space. Resorption of root and filling material was also assessed. Results Reduction in the clinical symptoms were noted in both groups (p < 0.01). All the 20 cases in group I demonstrated a decrease in size of radiolucency. However in group II, an increase in radiolucency was observed in 2 teeth at 3 months radiographic examination. Further no decrease in the size of radiolucency was noticed at subsequent follow-up visits. Complete resorption of overfilled material was observed at the 3 months radiographic examination for group I whereas partial resorption of overfilled material was seen at 6 months radiographic examination for group II. Conclusion The findings of the present study indicate that calcium hydroxide could be used exclusively or as an alternative to zinc oxide eugenol as a root canal filling material for the primary teeth.

scholarly journals A Systematic Review of Root Canal Filling Materials for Deciduous Teeth: Is There an Alternative for Zinc Oxide-Eugenol?

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Fernanda Barja-Fidalgo ◽  
Michele Moutinho-Ribeiro ◽  
Maria Angelina Amorim Oliveira ◽  
Branca Heloísa de Oliveira
Keyword(s):  
Systematic Review ◽  
Zinc Oxide ◽  
Calcium Hydroxide ◽  
Root Canal ◽  
Convincing Evidence ◽  
The Other ◽  
Deciduous Teeth ◽  
Success Rates ◽  
Root Canal Filling ◽  
Zinc Oxide Eugenol

The aim of this systematic review was to determine whether there is a root canal filling for deciduous teeth equally or more effective than zinc oxide-eugenol cement (ZOE). Six clinical trials selected for inclusion were independently reviewed by two researchers. Only two showed statistically significant different success rates between the test and the control groups. One found that an iodoform paste with calcium hydroxide () performed better than ZOE, and the other found that ZOE performed similarly to . The other four studies compared ZOE with an iodoform paste (IP), a calcium hydroxide cement , or . In these trials, the success rates in the ZOE groups were slightly lower than in the other groups. There seems to be no convincing evidence to support the superiority of any material over ZOE, and both ZOE and appear to be suitable as root canal fillings for deciduous teeth.

scholarly journals Management of broken instrument by file bypass technique

2017 ◽  
Vol 10 (1) ◽  
pp. 41
Author(s):  
Sultana Parveen ◽  
Mozammal Hossain ◽  
Md. Farid Uddin
Keyword(s):  
Stainless Steel ◽  
Zinc Oxide ◽  
Case Report ◽  
Calcium Hydroxide ◽  
Root Canal ◽  
Molar Tooth ◽  
Effective Technique ◽  
Zinc Oxide Eugenol ◽  
Bypass Technique

<p>Different devices and techniques have been developed to retrieve fractured instruments during the endodontic procedures. This case report describes the management of a broken instrument, which was accidentally broken during cleaning and shaping of the root canal in right 2<sup>nd</sup> molar tooth. A # 25 stainless steel K-file was separated in mesiobuccal canal of the treated tooth. At first, a radiograph was taken to confirm the level of separation of the instrument. The instrument was found to be separated at the apical 3<sup>rd</sup> of the mesial canal and then file bypass technique was performed. Calcium hydroxide dressing was given for 7 days followed by obturation with guttapercha cone and zinc oxide eugenol sealer in lateral condensation technique. It can be concluded that bypass technique can be considered as simple and effective technique for the management of broken instrument into the root canal.</p>

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