Effectiveness of a Chairside Acrylic Adjustment Cabinet in Reducing Dental Acrylic Debris and Aerosols

2021 ◽  
Author(s):  
Akanksha Srivastava ◽  
Michael R. Andersen ◽  
Abdulkareem M. Alshehri ◽  
Bryan Lara ◽  
Rafiullah Bashiri ◽  
...  
Keyword(s):  
Dental Acrylic

scholarly journals Antibacterial Effect of Amino Acid–Silver Complex Loaded Montmorillonite Incorporated in Dental Acrylic Resin

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1442
Author(s):  
Kumiko Yoshihara ◽  
Noriyuki Nagaoka ◽  
Aya Umeno ◽  
Akinari Sonoda ◽  
Hideki Obika ◽  
...  
Keyword(s):  
Amino Acid ◽  
Antibacterial Agents ◽  
Antibacterial Effect ◽  
Dental Materials ◽  
Silver Ions ◽  
Acrylic Resin ◽  
Chloride Ions ◽  
Antibacterial Efficacy ◽  
Growth Measurement ◽  
Dental Acrylic

Several dental materials contain silver for antibacterial effect, however the effect is relatively low. The reason for the lower antibacterial efficacy of silver is considered to be the fact that silver ions bind to chloride ions in saliva. To develop new effective silver antibacterial agents that can be useful in the mouth, we synthesized two novel amino acid (methionine or histidine)–silver complexes (Met or His–Ag) loaded with montmorillonite (Mont) and analyzed their antibacterial efficacy. At first the complexes were characterized using nuclear magnetic resonance (NMR), and amino acid–Ag complex-loaded Mont (amino acid–Ag–Mont) were characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The antibacterial efficacy of these materials in dental acrylic resin was then investigated by bacterial growth measurement using a spectrophotometer. As controls, commercially available silver-loaded zeolite and silver-zirconium phosphate were also tested. Dental acrylic resin incorporating His–Ag–Mont strongly inhibited Streptococcus mutans growth. This was explained by the fact that His-Ag complex revealed the highest amounts of silver ions in the presence of chloride. The structure of the amino acid–Ag complexes affected the silver ion presence in chloride and the antibacterial efficacy. His–Ag–Mont might be used as antibacterial agents for dental materials.

scholarly journals Influence different amount of cellulose on the mechanical strength of dental acrylic resin

2020 ◽  
Vol 743 ◽  
pp. 012044 ◽  
Author(s):  
Joanna Taczała ◽  
Chang Fu ◽  
Jacek Sawicki ◽  
Joanna Pietrasik
Keyword(s):  
Mechanical Strength ◽  
Acrylic Resin ◽  
Dental Acrylic

In vitro study of the antibacterial properties and impact strength of dental acrylic resins modified with a nanomaterial

2016 ◽  
Vol 115 (2) ◽  
pp. 238-246 ◽  
Author(s):  
Denise T. de Castro ◽  
Mariana L.C. Valente ◽  
José Augusto M. Agnelli ◽  
Cláudia H. Lovato da Silva ◽  
Evandro Watanabe ◽  
...  
Keyword(s):  
Impact Strength ◽  
Antibacterial Properties ◽  
In Vitro Study ◽  
Vitro Study ◽  
Acrylic Resins ◽  
Dental Acrylic

scholarly journals Weight loss promoted by the Intra-oral Alimentary Satiety Device in a morbidly obese patient

2015 ◽  
Vol 63 (2) ◽  
pp. 169-174
Author(s):  
Mariane HALMENSCHLAGER ◽  
Alexandre CONDE ◽  
Simara Rufatto CONDE ◽  
Thaís Rodrigues MOREIRA
Keyword(s):  
Weight Loss ◽  
Steel Wire ◽  
Acrylic Resin ◽  
The Body ◽  
Hypocaloric Diet ◽  
Morbidly Obese ◽  
Morbidly Obese Patient ◽  
Dental Acrylic ◽  
Treatment Of Obesity ◽  
Anthropometric Assessment

OBJECTIVE: To evaluate the weight loss fostered by the Intra-oral Alimentary Satiety Device in a patient diagnosed as morbidly obese. METHODS: A female patient diagnosed as morbidly obese who was seeing a nutritionist was examined. Based on her medical history and anthropometric assessment, a hypocaloric diet was prescribed. The nutritional state was assessed by the Body Mass Index (BMI). The patient was advised to wear the Intra-oral Alimentary Satiety Device, and an assessment by a dentist was suggested to discard contraindications. The appliance was then manufactured with dental molding material, orthodontic stainless steel wire, and heat-cured dental acrylic resin. The patient wore the device at every meal, putting it on 5 minutes in advance. For the data analysis the SPSS Statistics 17.0 software was used. RESULTS: In her first consultation, the patient weighed 115 kg and was 1.62 m tall, with BMI = 43.82 Kg/m. Weight loss was 13.3 kg, representing 11.57% of the initial weight. In relation to the BMI, the total loss was 5.06 Kg/m, representing 11.55%. CONCLUSION: The Intra-oral Alimentary Satiety Device can be considered a safe and effective method which, together with a hypocaloric diet, shows satisfactory results, thus proving to be an important auxiliary option in the treatment of obesity.

scholarly journals Chemical Modification of Cellulose Microfibres to Reinforce Poly(methyl methacrylate) Used for Dental Application

Materials ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 3807 ◽  
Author(s):  
Joanna Taczała ◽  
Jacek Sawicki ◽  
Joanna Pietrasik
Keyword(s):  
Methyl Methacrylate ◽  
Mechanical Performance ◽  
Average Length ◽  
General Procedure ◽  
Dental Materials ◽  
Poly Methyl Methacrylate ◽  
Active Filler ◽  
The Matrix ◽  
Dental Acrylic ◽  
Good Potential

The mechanical properties of dental acrylic resins have to be improved in the case of a thin denture plate. This can be achieved by cellulose addition, playing the role of active filler. But to provide the excellent dispersion of cellulose microfibres within the hydrophobic polymer matrix, its surface has to be modified. Cellulose microfibres with average length from 8 to 30 μm were modified with octyltriethoxysilane and (3-methacryloxypropyl)methyldimethoxysilane. The latter also participated in the polymerisation reaction of methyl methacrylate. Dental composites were prepared following the general procedure provided by the supplier. The successful modification of the microfibres led to the improved compatibility of the cellulose and poly(methyl methacrylate). The fibres after modification were uniformly distributed within the matrix, resulting in the improved mechanical performance of obtained materials. Cellulose microfibres are good candidates for the dental materials to be used as the active filler. The simple and straightforward approach for the cellulose modifications with silanes provides good potential for its future practical application.

scholarly journals Quantitative evaluation of osteogenesis through infrared light

2017 ◽  
Vol 4 (2) ◽  
Author(s):  
Pedro Alejandro Lomelí Mejía ◽  
Pablo Alfonso González Lomelín ◽  
Hugo Lecona Butrón ◽  
René Domínguez Rubio ◽  
Saúl Renan León Hernández ◽  
...  
Keyword(s):  
Light Source ◽  
Quantitative Evaluation ◽  
Incident Light ◽  
Good Choice ◽  
Infrared Light ◽  
External Fixators ◽  
Bone Consolidation ◽  
Photo Sensor ◽  
New Zealand White Rabbits ◽  
Dental Acrylic

Veterinaria México OA ISSN: 2448-6760Cite this as:Lomelí Mejía PA, González Lomelín PA, Lecona Butrón H, Domínguez-Rubio R, León-Hernández SR, Luna-Valdéz IX, Domínguez-Hernández V. Quantitative evaluation of osteogenesis through infrared light. Pilot study. Veterinaria México OA. 2017;4(2). doi: 10.21753/vmoa.4.2.410.Different methods are available to evaluate the degree of bone healing. A good choice involves employing optical techniques with infrared light to eval-uate the progress of bone consolidation. Because infrared light is absorbed in liquids and reflected in solids, it is possible to assess bone consolidation progress using an incident light source and a coupled photo sensor. We used a 940-nm light source that is capable of reaching bone to determine the degree of bone consolidation. Five New Zealand White rabbits were used according to the NOM-062-ZOO99 standard. In each animal, a fracture was generated in the left tibia, and the fragments were fixed using an external fixator constructed with Kirschner nails and dental acrylic cement. Progress in bone consolidation was evaluated at days 7, 23, and 34 after surgery. A linear dependence was observed between the days elapsed and the reflection of the infrared light.Figure 2. Reduction of tibia by external fixators made with Kirschner nails 0.045 inch in diameter and methylmethacrylate cement.

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