Authors: Wada T, Takano T, Ueda T, Sakurai K Abstract The purpose of this study was to compare the adhesiveness of chewing gum to acrylic resin, cobalt-chromium alloy, and zirconia. Test specimens were fabricated using acrylic resin (resin), cobalt-chromium alloy (Co-Cr), and Ceria stabilized tetragonal zirconia polycrystal-based nanostructured zirconia/alumina composite (zirconia). Specimens of each material were attached to the upper and lower terminals of a digital force gauge. The operator masticated chewing gum, wiped off any saliva, and placed the gum on the lower specimen. The gum was compressed to a thickness of 1 mm between the upper and lower specimens. Thereafter, traction was applied to the upper specimen at a cross-head speed of 100 mm/min under 3 different conditions …
MedWorm: Dentistry
Comparison of Adhesive Resistance to Chewing Gum among Denture Base Acrylic Resin, Cobalt-Chromium Alloy, and Zirconia.
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– February 12, 2017
Effect of Cuff Pressure Elevation on Internal Diameter of Tracheal Tube in Simulated Trachea.
Authors: Matsuki Y, Matsuura N, Ichinohe T Abstract Application of nitrous oxide during anesthesia causes an increase in tracheal tube cuff pressure over time. The purpose of this study was to investigate the effect of an increase in cuff pressure on 3 types of tube (the Portex, Mallinckrodt, and Parker) commonly used for nasotracheal intubation. A cylindrical vessel was used to simulate a trachea. Cuff pressure was set at 0 cmH2O (R0) or 20 cmH2O (R20) at room temperature, or at 20 cmH2O (H20), 40 cmH2O (H40), 60 cmH2O (H60), or 80 cmH2O (H80) in 38°C hot water and pressure applied for 30 min. The value obtained at R0 was used as a reference (100%) and the rate of change under each condition determined. No change was observed at R20 in any of the 3 groups. In 38°C hot water, int…
MedWorm: Dentistry
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– February 11, 2017
Paul and Elaine Nawiesniak
Our services include metal free fillings, all ceramic crowns, implant restorations, implant supported dentures, extractions, root canal therapy, teeth whitening, TMJ and sleep apnea therapy. Nitrous and oral sedation is available.
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– February 11, 2017
Dorothy Parker
“She runs the gamut of emotions from A to B.”
Quotes of the Day
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– February 10, 2017
Tooth Loss in Problem-oriented, Irregular, and Regular Attenders at Dental Offices.
Authors: Yoshino K, Ito K, Kuroda M, Sugihara N Abstract The aim of this retrospective study was to compare number of teeth lost among regular attenders (RAs), irregular attenders (IRAs), and problem-oriented attenders (POAs) at dental offices over a 10-yr observation period. Information on tooth loss was obtained from general practitioners. Patients were divided into 3 groups based on appointment adherence. A total of 1,886 teeth were lost in 1,400 patients. The mean number of teeth lost in men was 2.2±2.6 per patient over 10 yr in POAs, 1.2±1.7 in IRAs, and 1.5±1.5 in RAs. This number was significantly lower in IRAs (p = 0.011) or RAs (p=0.012) than in POAs. When the dependent variable was defined as “a patient with at least 2 or more extracted teeth”, the independent variable…
MedWorm: Dentistry
Posted in Dental News.
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– February 10, 2017
26 minutes ago
Christopher Adamus leads a hands-on training on digitally designing a set of full dentures using one of the fastest-developing software programs in the 3Shape portfolio. It currently allows designing dentures using various, precisely crated and mapped teeth sets and supporting various types of manufacturing processes.
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– February 10, 2017
Study shows impact of dental benefits on meeting children’s dental needs
A report in The Journal of the American Dental Association (JADA) shows that dental benefits play a significant role in meeting the dental needs of children, including checkups and treatments.
Dentistry News From Medical News Today
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– February 10, 2017
Paul Beatty
“If all the world’s a stage, I want to operate the trap door.”
Quotes of the Day
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– February 9, 2017
Application of 17% EDTA Enhances Diffusion of (45)Ca-labeled OH(-) and Ca(2+) in Primary Tooth Root Canal.
Authors: Ximenes M, Cavalcanti Taguchi CM, Triches TC, Sartori N, Pereira Dias LA, de Araujo EB, Cardoso M Abstract Proper cleaning of the root canal is key to the success of endodontic treatment as it allows more effective diffusion of medication throughout the dentinal tubules. The aim of this in vitro study was to investigate the efficacy of 17% ethylenediaminetetraacetic acid (EDTA) in enhancing diffusion of hydroxyl (OH(-)) and calcium ions (Ca(2+)) throughout the root canal in primary teeth. The canals of 25 primary tooth roots were cleaned with endodontic files and 1% sodium hypochlorite. Three groups (G) were then established: GI, in which final irrigation was performed with 1% sodium hypochlorite; GII, in which 17% EDTA was used; and GIII, in which no irrigation was perfor…
MedWorm: Dentistry
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– February 9, 2017
