International Journal of Dental Materials <p align="justify"><strong>Focus and Scope: </strong>International Journal of Dental Materials welcomes editorial queries, original studies, evidence-based research works and practical innovations, reviews, case reports and concise communications. This journal intends knowledge transfer and spread of verified information from valuable researchers to all fellow dental fraternity. Manuscripts showcasing studies on dental biomaterial properties, performance, induced host response, immunology and toxicology will attain the highest priority for publication. Documentation emphasising advancing dental technology, innovations in dental materials design and their clinical viability succeed the hierarchy of publishing preference.</p> en-US <p>This work is licensed under a <a href="" rel="license">Creative Commons Attribution 4.0 International License</a>.</p> (Dr. Rama Krishna Alla) (Dr. Rama Krishna Alla) Wed, 01 Dec 2021 09:24:29 +0000 OJS 60 Apical microleakage assessment of teeth obturated with single-cone gutta-percha using two calcium silicate sealers and a resin sealer: an in vitro study. <p><strong>Background:</strong> Achieving a fluid-tight seal of the root canal space is the most desirable outcome for the success of endodontic treatment. Root canal sealers are used in combination with core filling materials to fill the irregularities in the root canal, thereby obtaining a three-dimensional seal, which results in the inhibition of bacterial regrowth.</p> <p><strong>Aim:</strong> This study was aimed to compare the apical sealing ability of three root canal sealers AH Plus, Endosequence BC, and Endoseal MTA, using a single cone gutta-percha obturation technique.</p> <p><strong>Methodology:</strong> Forty extracted human single-rooted mandibular premolar teeth were decoronated to a standardized length of 15 mm and instrumented using crown down technique with the ProTaper gold rotary file system to apical file size F3. The roots were randomly allocated into three experimental groups (n=10) and two control groups (n=5). All the samples in experimental groups were obturated with a matched taper single cone: Group 1, Group 2 and Group 3 were obturated using AH Plus, Endosequence BC and Endoseal MTA sealers respectively. Samples were immersed in 1% Methylene blue dye solution for 72 hours, and then the roots were split longitudinally and observed under a stereomicroscope. Apical microleakage was measured from the apex to the most coronal level of dye penetration. The data obtained were subjected to statistical analysis.</p> <p><strong>Results:</strong> Samples in all the groups showed evidence of leakage, except in the negative control group. Group I did not show significant differences with&nbsp; Group 2 and Group 3 (p = 0.446 and p= 0.147, respectively). Whereas, statistically significant differences were observed between Group 2 and Group 3.</p> <p><strong>Conclusion:</strong> &nbsp;Endosequence BC showed a superior seal and less microleakage compared to the two other sealers used in this study using a single cone gutta-percha obturation technique.</p> Vishal Babu Kolla, R Kalyan Satish, Girija S Sajjan, K Madhu Varma, Ambika Sigadam, Gnana Sindhu Dutta Copyright (c) 2021 International Journal of Dental Materials Wed, 01 Dec 2021 00:00:00 +0000 A comparative evaluation of properties of denture base materials processed with different processing methods: a preliminary study. <p><strong>Background: </strong>The use of the traditional polymerization process of dentures necessitates a lot of time and energy. To depreciate these factors, a different processing method could be studied.</p> <p><strong>Aim: </strong>This study was aimed to evaluate and compare the properties of denture base resin material processed with conventional curing and pressure-pot method.</p> <p><strong>Materials and methods:</strong> A total of 30 specimens with distinct dimensions were fabricated with the denture base materials. The specimens were divided into two groups with 15 each, and they were processed using conventional heat-curing and pressure-pot processing, respectively. Each group is subdivided into three groups with five specimens in each for evaluating flexural strength, water sorption, and residual monomer, respectively. Flexural strength was measured using a 3-point bending test with a Universal testing machine. Water sorption was assessed by measuring the weight of the specimens after immersing them in distilled water. Residual monomer content was evaluated using a UV spectrophotometer. The obtained data were statistically analysed using an independent t-test.</p> <p><strong>Results: </strong>A slight increase in flexural strength was observed in the pressure processed specimens. However, no significant differences (<em>p</em>=0.131) were observed in the flexural strength between the groups. Less water sorption percentage was observed with the pressure processed acrylic resin specimens, and a significant difference (<em>p</em>=0.047) was observed between the groups. A slightly more amount of residual monomer content was seen in the acrylic specimens processed conventionally.</p> <p><strong>Conclusion: </strong>Pressure-pot curing may be used for processing denture base acrylics as it provides properties similar to that of the conventional curing method.</p> Sangam Bhavana Lahari, Srinivas Rao Pottem, Anyam Ram Koti Reddy, Pavan Kumar Tannamala, Kalamalla A Saran Babu, Vangala R L Manogna Copyright (c) 2021 International Journal of Dental Materials Wed, 01 Dec 2021 00:00:00 +0000 Effect of zirconium oxide and cellulose nanoparticles addition on the flexural strength, impact strength and translucency of heat polymerized acrylic resin: an in vitro study. <p><strong>Background: </strong>Polymethyl methacrylate denture base material is considered the most popular denture base material to date. The advantages of the PMMA include low cost, biocompatibility, ease of processing, stability in the oral environment, and acceptable aesthetics. To improve the acrylic polymer’s properties for removable acrylic appliances, the significant issues to be addressed are its low mechanical properties such as impact, bending, and fatigue.</p> <p><strong>Aim: </strong>This study was aimed to evaluate the effect of incorporating different concentrations of zirconium oxide and cellulose nanoparticles on flexural strength, and impact strength and translucency of heat polymerized acrylic resin.</p> <p><strong>Materials and methods:</strong> A total of 180 acrylic specimens were made and divided into two groups, which comprises 90 specimens in each. Group I and Group II were reinforced with ZrO<sub>2</sub> and cellulose nanoparticles, respectively. Each group was divided into three subgroups depending on the properties to be evaluated i.e., flexural strength, Impact strength, and Translucency, respectively. Each subgroup was further divided into three based on the concentrations (1.5 wt%, 2.5 wt% and 5.0 wt%) of the nanoparticles. The flexural strength was determined using a universal testing machine. The Izod impact tester was used to evaluate the impact strength. Translucency measured by UV visible spectrophotometer. The obtained data were analysed using one way ANOVA within the group followed by posthoc comparison by TUKEY’S method for the comparison between groups.</p> <p><strong>Results: </strong>Acrylic specimens incorporated with 2.5 wt% ZrO<sub>2</sub> exhibited more mean flexural strength, and the specimens with 2.5 wt% and 5.0 wt% cellulose nanoparticles showed the highest impact strength and translucency, respectively. One-way ANOVA showed significant differences (<em>p</em>=0.000) between the groups.</p> <p><strong>Conclusion: </strong>PMMA incorporated with 2.5 wt% of ZrO<sub>2</sub> NPs, 2.5 wt% and 5.0 wt% of cellulose NPs showed superior flexural strength, impact strength, and translucency, respectively.</p> <p> </p> Senbagavalli S Sagadevan K, R Ravichandran, K Harsha Kumar, Vivek V Nair, Janardanan Kavitha, VS Deepthi Copyright (c) 2021 International Journal of Dental Materials Wed, 01 Dec 2021 00:00:00 +0000 An overview of composition, properties, and applications of Biodentine <p>A series of events leads to loss of tooth structure by dental caries, tooth wear and trauma, which is often replaced by inert dental materials that replace the bulk of the tooth. If pulp health is affected, a series of interventions need to be undertaken. Initially, the pulp vitality needs to be maintained. Later, elimination of infection and filling of the pulp space is necessary. When pulpal involvement occurs the choice of material has to change, and materials that interact with the pulp are indicated. Interactive materials used for dental procedures include calcium hydroxide in its various presentations and hydraulic calcium silicate cement. Biodentine is a promising dentine substitute that has been recently introduced in dentistry. Although many other materials like Glass Ionomer Cement (GIC), composite and Mineral Trioxide Aggregate (MTA) are available for repair of dentin loss in tooth structure, none of them possesses ideal properties. Despite many advantages, MTA has been replaced by Biodentine, which is a new calcium silicate-based material, due to its limitations. It has good handling properties, short setting time, and improved mechanical properties. Biodentine was designed explicitly as a "dentine replacement," with applications ranging from endodontic repair to pulp capping.</p> Navya Sri Kadali, Rama Krishna Alla, AV Ramaraju, Suresh MC Sajjan, Satynarayana Raju Mantena, Rudraraju Venkateswara Raju Copyright (c) 2021 International Journal of Dental Materials Wed, 01 Dec 2021 00:00:00 +0000 Materials used to maintain integrity of enamel in Orthodontics: an update <p>After Orthodontic treatment, it's just as crucial to restore a healthy and normal tooth structure as it is to achieve the aims of Orthodontics. Orthodontic treatment has the potential to cause some damage to dental enamel. Orthodontists should make every effort to minimize damage to dental tooth enamel. These enamel lesions, such as white spot lesions, are managed first by developing appropriate dental hygiene habits and prophylaxis with topical fluorides, high-fluoride toothpaste, fluoride mouthwashes, gels, varnishes, fluoride-containing bonding materials, fluoride-containing luting cement, and fluorides in elastomers. Other materials and treatments include casein phosphopeptides-amorphous calcium phosphate, probiotics, carbamide peroxide, polyols, sealants, microabrasion, resin infiltration, antiseptics, and lasers, have recently been recommended. This article reviews the current information regarding the various materials used to manage enamel demineralization and promote remineralization during and after orthodontic treatment.</p> Pradeep Kandikatla, Sai Sreedevi Kallepalli , Sathya Usha Sree Ravada, Pavankumar Chiluvuri Copyright (c) 2021 International Journal of Dental Materials Wed, 01 Dec 2021 00:00:00 +0000