Abstract The cytotoxicity of a dental alloy depends on, but is not limited to, the extent of its corrosion behavior. Individual ions may have effects on cell viability that are different from metals interacting within the alloy structure. We aimed to investigate the cytotoxicity of individual metal ions in concentrations similar to those reported to be released from Pd-based dental alloys on mouse fibroblast cells. Metal salts were used to prepare seven solutions (concentration range 100 ppm–1 ppb) of the transition metals, such as Ni(II), Pd(II), Cu(II), and Ag(I), and the metals, such as Ga(III), In(III), and Sn(II). Cytotoxicity on mouse fibroblasts L929 was evaluated using the MTT assay. Ni, Cu, and Ag are cytotoxic at 10 ppm, Pd and Ga at 100 ppm. Sn and In were not abl…
MedWorm: Dentistry
Survival characteristics of composite restorations in primary teeth
Conclusions Filling survival was comparably lower to composite restorations observed in prospective clinical studies on permanent teeth and other tooth-colored restoratives used in primary teeth. Due to the very high caries risk and young age of the population, frequent loss due to secondary caries was observed. With respect to the high caries risk, composite restorations can be used to treat carious primary teeth, though a strict caries prevention regimen should be followed to minimize restoration failure. Clinical relevance Filling loss of composites in the primary dentition is associated with secondary caries on the long term. (Source: Clinical Oral Investigations)
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Posted in Dental News.
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– December 31, 2014
Everything That You Should Know About Dental Implants
In the past, dentists attempted to replace or keep teeth through procedures such as bridges, root canals, and fixed dentures . Unfortunately, bridges require healthy adjacent teeth to be cut down, root canal treated teeth can fail, and dentures can be unstable.
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– December 31, 2014
Stability of class II subdivision malocclusion treatment with 3 and 4 premolar extractions
Conclusion Treatment of class II subdivision malocclusion with 3 and 4 premolar extractions have a similar long-term posttreatment occlusal stability. (Source: Progress in Orthodontics)
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– December 30, 2014
tooth loss
If you’ve ever wondered, “Where on Earth did I put my dentures?” there’s now a scientific reason behind why you did it. New research published in the Journal of the American Geriatrics Society has linked age-related tooth loss with a decline in physical and cognitive ability.
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– December 30, 2014
Saki
“He’s simply got the instinct for being unhappy highly developed.”
Quotes of the Day
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– December 29, 2014
Eric Hoffer
“The opposite of the religious fanatic is not the fanatical atheist but the gentle cynic who cares not whether there is a god or not.”
Quotes of the Day
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– December 28, 2014
Temporomandibular joint articulations on working side during chewing in adult females with cross?bite and mandibular asymmetry
This study aimed to investigate whether/how the working?side condylar movement irregularity and articular spaces during chewing differ between patients with mandibular asymmetry/cross?bite and control subjects. The cross?bite group and the control group consisted of 10 adult female patients and 10 adult female subjects, respectively. They performed unilateral gum?chewing. The mandibular movements were recorded using a video?based opto?electronic system. The 3D articular surface of the TMJ for each individual was reconstructed using CT/MRI data. For local condylar points, the normalised jerk cost (NJC) towards normal direction to the condylar surface, the angle between tangential velocity vector and condylar long axis and intra?articular space were measured. Three rotatory ang…
MedWorm: Dentistry
Posted in Dental News.
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– December 28, 2014
20 Job Openings in Orange: Target, Lowe’s, Savers, and More
Company Description: Recruitment Specialists Job Description: NO RELOCATION PROVIDED Manage A, Techs, and Sanitation Program Assist in creation, implementation, verification and… Company Description: Our goal is to connect businesses directly to their desired audiences in their local area through value-based branding and advertising.
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– December 28, 2014
