scholarly journals Evaluation of Carbon Dioxide-Based Urethane Acrylate Composites for Sealers of Root Canal Obturation

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 482 ◽  
Author(s):  
Hao-Hueng Chang ◽  
Yi-Ting Tseng ◽  
Sheng-Wun Huang ◽  
Yi-Fang Kuo ◽  
Chun-Liang Yeh ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Root Canal ◽  
Antibacterial Effect ◽  
Resin Matrix ◽  
Urethane Acrylate ◽  
Alamar Blue ◽  
Root Canal Obturation ◽  
Microbial Response ◽  
Superior Mechanical Properties ◽  
Ldh Assay

A new root canal sealer was developed based on urethane acrylates using polycarbonate polyol (PCPO), a macrodiol prepared in the consumption of carbon dioxide as feedstock. The superior mechanical properties and biostability nature of PCPO-based urethane acrylates were then co-crosslinked with a difunctional monomer of tripropylene glycol diarylate (TPGDA) as sealers for resin matrix. Moreover, nanoscale silicate platelets (NSPs) immobilized with silver nanoparticles (AgNPs) and/or zinc oxide nanoparticles (ZnONPs) were introduced to enhance the antibacterial effect for the sealers. The biocompatibility and the antibacterial effect were investigated by Alamar blue assay and LDH assay. In addition, the antibacterial efficiency was performed by using Enterococcus faecalis (E. faecalis) as microbial response evaluation. These results demonstrate that the PCPO-based urethane acrylates with 50 ppm of both AgNP and ZnONP immobilized on silicate platelets, i.e., Ag/ZnO@NSP, exhibited great potential as an antibacterial composite for the sealer of root canal obturation.

scholarly journals A Novel Polyurethane-based Root Canal–obturation Material and Urethane-Acrylate–based Root Canal Sealer—Part 2: Evaluation of Push-out Bond Strengths

2008 ◽  
Vol 34 (5) ◽  
pp. 594-598 ◽  
Author(s):  
Bor-Shiunn Lee ◽  
Eddie Hsiang-Hua Lai ◽  
Ken-Hsuan Liao ◽  
Chung-Yi Lee ◽  
Kuo-Huang Hsieh ◽  
...  
Keyword(s):  
Root Canal ◽  
Urethane Acrylate ◽  
Root Canal Sealer ◽  
Root Canal Obturation ◽  
Bond Strengths ◽  
Push Out

Аpplying of high-frequency monopolar diathermocoagulation in the treatment of chronic pulpitis

2020 ◽  
Vol 1 (12) ◽  
pp. 40-42
Author(s):  
F. Yu. Daurova ◽  
D. I. Tomaeva ◽  
S. V. Podkopaeva ◽  
Yu. A. Taptun
Keyword(s):  
Root Canal ◽  
High Frequency ◽  
Antibacterial Effect ◽  
Comparison Group ◽  
Poor Quality ◽  
Endodontic Treatment ◽  
Root Canals ◽  
The Third ◽  
Before And After

Relevance: the reason for the development of complications in endodontic treatment is poor-quality instrumental treatment root canals.Aims: a study of the animicrobial action and clinical efficacy of high-frequency monopolar diathermocoagulation in the treatment of chronic forms of pulpitis.Materials and methods: 102 patients with various chronic forms of pulpitis were divided into three groups of 34 patients each. In the first two groups, high-frequency monopolar diathermocoagulation was used in endodontic treatment in different modes. In the third group, endodontic treatment was carried out without the use of diathermocoagulation (comparison group). The root canal microflora in chronic pulpitis in vivo was studied twice-before and after diathermocoagulation.Results: it was established that high-frequency monopolar diathermocoagulation in the effect mode is 3, power is 4 (4.1 W) and effect is 4, power is 4 (5.4 W) with an exposure time of 3 seconds, it has a pronounced antibacterial effect on all presented pathogenic microflora obtained from the root canals of the teeth.

scholarly journals APEXIFICATION WITH BIODENTINE - A CASE REPORT

2013 ◽  
Vol 5 (2) ◽  
pp. 3-5
Author(s):  
R.S. Bassvanna ◽  
Chitra Gohil
Keyword(s):  
Case Report ◽  
Calcium Hydroxide ◽  
Root Canal ◽  
Endodontic Treatment ◽  
Clinical Scenario ◽  
Root Canal Obturation ◽  
Single Visit ◽  
Dental Practitioners ◽  
New Material ◽  
Open Apices

ABSTRACT Management of non vital teeth with open apices isa challenge to the dental practitioners. In this clinical scenario, it is difficult to maintain the obturating material confine within the root canal without encroaching into periapical area. These kinds of cases cannot be managed by conventional endodontic treatment, and treatment of such cases with calcium hydroxide may take longer time for apical closure. But with this new material called BIODENTINE (Septodont) same treatment can be done in single visit with predictable result. Hence this case report present the use ofbiodentine to form an apical plug in open apex followed by complete root canal obturation using thermoplasticized guttapercha.

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