International Journal of Dental Materials
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Lithium Disilicate Ceramics in Prosthodontics: Unveiling Innovations, Current Trends, and Future Horizons
Get PDFIn contemporary dentistry, ceramic restorations have experienced a surge in popularity. This paper aims to review the current state of literature and recommendations concerning the application of lithium disilicate glass-ceramic IPSTM e.Max. This comprehensive review also covers material science, mechanical intricacies, and optical properties of glass-ceramic material. Further, this review extends valuable clinical insights, presenting recommendations for the effective utilization of IPS e.Max CAD restorations in dental practices
Feeding plate prosthesis for an infant with cleft lip and palate: a case report
Get PDFCleft lip and palate are congenital anomalies that manifest at birth, leading to a range of complications such as feeding challenges, dysfunction of the eustachian tube, middle ear infections and effusion, hearing loss, speech disorders, and dental and orthodontic issues. A feeding plate is a prosthetic solution crafted to address these challenges by effectively sealing the cleft and restoring the separation between the oral and nasal cavities. This case report details the procedure for fabricating a feeding plate specifically designed for neonates with cleft lip and palate
Effect of silver nanoparticles incorporation on impact strength of Heat-cure denture base resins
Get PDFBackground: Poly (Methyl methacrylic acid) based materials are widely used for the fabrication of removable complete and partial denture prostheses. these materials are prone to fractures when subjected to impact forces. While recent studies have explored the antimicrobial potential of denture base materials incorporating silver nanoparticles, their impact on the mechanical properties crucial for the prosthesis\u27s durability has not been adequately established.
Aim: To evaluate the impact strength of the heat-cure denture base materials incorporated with various concentrations of silver nanoparticles.
Materials and Methods: Silver nanoparticles were incorporated at various concentrations (0.5, 1.0, 2.0 and 5.0 wt%) into three different heat-cure denture base materials. A total of 150 rectangular-shaped specimens (50 x 6 x 4), which comprises 50 samples from each of the three heat-cure acrylic resins were made using the compression molding technique. Ten specimens (n=10) were allocated for each concentration such as control, 0.5wt%, 1.0wt%, 2.0wt% and 5.0wt% concentrations of silver nanoparticles. A “V” notch was made exactly at the centre of each specimen to prevent the ductile fracture. The impact strength was evaluated using the Izod impact tester. The data were subjected to One-way ANOVA and Post hoc tests for statistical analyses.
Results: A decrease in the impact strength was observed in the modified groups compared to the control groups. One-way ANOVA showed significant differences (p=0.000) among the different concentrations of all three denture base materials.
Conclusion: Silver nanoparticles incorporation reduced the impact strength of the denture base materials
Cemental tear on the first maxillary premolar in the patient with facial palsy: an uncommon type of root fracture
Get PDFA 56-year-old female patient came to the department complaining of pain in the upper right back tooth region. The patient reported a history of paralysis in the right half of the body. There is neither swelling nor inflammation in the gingiva. No sinus tract is present in the vestibular area. There were no noticeable caries lesions. Right first maxillary premolar with significant periodontal pocket and grade 2 mobility on palpation. There is tenderness in the percussion. The patient refused treatment alternatives and had the tooth extracted. The middle third of the root contains a completely detached fragment in the middle third. The root fragment was sent for biopsy for histological analysis. Cementum, dentin, and inflammatory cells were found during histological examination and were suggestive of cemental tear
Advances in the management of post-endodontic pain: a review
Get PDFThis review describes the management of post-endodontic pain pharmacologically and non-pharmacologically. Acute periapical inflammation brought on by endodontic treatment-related chemical, mechanical, and/or microbiological damage to the periapical region causes postoperative pain, which is multifactorial in nature. A wide range of technical and pharmacological techniques are taken into consideration and proposed to control post-operative endodontic pain, the present study primarily comprised an overview of systematic reviews, randomized clinical trials, and in vitro studies summarizing advancement in the management of post-operative endodontic pain
Comparative evaluation of bonding between composite relined fibre post and Conventional fibre post: an in-vitro study
Get PDFBackground: Fiber posts are widely used aesthetic material in restorative dentistry. These materials were introduced to overcome the inherent shortcomings of cast posts.
Aim: This study aimed to evaluate and compare the pull-out bond strength of fibre posts with relining and without relining.
Materials and methods: Twenty maxillary canines were extracted and underwent endodontic treatment, involving the removal of their crown portion. Post-space preparation was performed, and the appropriate post size was selected. In Group 1, ten samples were coated with a layer of composite, reinserted into the post space of the canal, and then light-cured outside the canal. The other ten samples (Group 2) were without relining. The fibre posts from both groups were cemented with RMGIC. The samples were mounted in tensile fixtures of the universal testing machine and subjected to a tensile load until the posts were debonded. The debonded samples were analysed using a stereo microscope for bond failure analysis. The obtained results were subjected to statistical analysis.
Results: The mean pull-out force in group 1 and group 2 was 72.2100±8.56420 and 61.3700±11.00611, respectively. One-way ANOVA analysis showed a significant difference in the pull-out force among the groups (P=0.043). In Group 1, 30% of the samples reported adhesive-2 failures and 70% adhesive-1&2 failures. But in Group 2, all samples were reported with adhesive-3 failures. Fisher’s Exact test displayed a significant difference in the type of bond failure between the groups (P=0.003).
Conclusions: This study concluded that the coating of the fibre posts improves their tensile strength
Role of Nanotechnology in Prosthodontics: a review
Get PDFIn the present-day context, a considerable portion of the population faces the challenge of edentulism. Various treatment approaches, including both fixed and removable prostheses, are available for restoring missing teeth. Noteworthy progress has recently been observed in the characteristics of commonly used dental materials, attributed to the emergence of nanotechnology. This technological advancement has significantly contributed to improving the outcomes of dental treatments. Nanotechnology represents a multidisciplinary domain that amalgamates principles from both the arts and sciences, involving the manipulation of structures and functional materials at a minuscule scale. This field leverages various physical and chemical methodologies to operate at dimensions where sizes of particles, typically ranging from 1 to 100 nanometers, give rise to what is termed as Nanoparticles. The integration of nanoparticles in dentistry, particularly within dental materials such as ceramics, acrylic resin, tissue conditioners, and denture adhesives, has exhibited a discernible positive impact on their inherent properties. This review predominantly delves into an exploration of diverse applications of nanoparticles within the realm of dentistry, with a specific emphasis on their role in prosthodontics
Evaluation of physico-mechanical properties of dental plaster modified with pulverized acrylic waste
Get PDFBackground: Dental plaster is most widely used to make temporary casts and as an investment medium during the fabrication of removable complete and partial denture prostheses. Dental plasters exhibit poor mechanical properties.
Aim: This study aimed to evaluate the physico-mechanical properties of dental plaster modified with various concentrations of pulverized acrylic waste.
Materials and Methods: A total of 120 specimens were fabricated using dental plaster and were divided into four groups of 30 specimens each to evaluate setting time, one-hour compressive strength, 24-hour compressive strength, and surface reproducibility. Each group was subdivided into five groups of six specimens (n=6), each with the incorporation of various concentrations of pulverized acrylic powder. The specimens incorporated with various concentrations of pulverized acrylic powder (0.5 wt%, 1.0 wt%, 5.0 wt% and 10.0 wt%) were considered as modified groups and the dental plaster with no additives was considered as a control group. The initial and final setting times were measured using a Gillmore needle apparatus, the compressive strength was measured using a universal testing machine, and the surface reproducibility was analyzed using a stereo microscope. The obtained data were subjected to statistical analysis using one-way ANOVA and post hoc analysis.
Results: The incorporation of 0.5 wt% resulted in more final and initial setting times. The one-hour and 24-hour compressive strengths of the dental plaster increased with increasing concentration of acrylic waste. Poor surface details were observed with an increase in the concentration of acrylic waste.
Conclusions: The addition of acrylic waste resulted in an increase in the one-hour and 24-hour compressive strengths, decreased initial and final setting times, and poor surface reproducibility
An update on Cention N: An aesthetic direct bulk-fill restorative material
Get PDFThe demand for aesthetic restorative materials has increased in recent years. Glass ionomer cements (GIC), their modifications, and various composite restorative materials have been developed as direct tooth-coloured restorative materials. However, none of these materials can be compared to the properties of amalgam restorative materials. Recently, a new direct tooth-coloured, bulk-fill, and aesthetic restorative material, Cention N, was developed. This material is easy to handle and has properties similar to those of type-IX GIC. This article provides an update on the composition and properties of Cention N restorative material
Fiber-Reinforced Composites in Dentistry: Enhancing structural integrity and aesthetic appeal
Get PDFThis review explored the recent advancements in fiber-reinforced composites (FRCs) within the context of restorative dentistry. Dental composites have undergone significant transformations, with FRCs emerging as a groundbreaking development at the intersection of aesthetics and mechanical performance. The objective of this review is to provide a comprehensive understanding of the innovative strategies employed in FRCs to address the challenges of polymerization shrinkage, wear resistance, mechanical strength, and aesthetics. FRCs, composed of fiber reinforcements strategically aligned within a resin matrix, offer enhanced flexural strength, fracture toughness, and wear resistance, essential for the longevity of dental restorations. The review further explored the dynamic relationship between fiber alignment and restoration design, highlighting the adaptability of FRCs for varied applications, from post and core restorations to bridges and splints. Through an intricate interplay of materials science and clinical demands, FRCs have revolutionized dental composites by seamlessly integrating form and function. This review underscores the transformative potential of FRCs in restorative dentistry, shedding light on the path to enhanced clinical outcomes and patient satisfaction