Medical

Time for removal: A review of erbium laser-assisted ceramic debonding for dental restorations and appliances

By Lisa McDonald / November 18, 2022

Methods that conserve or semi-conserve a dental restoration during removal often risk harming the underlying tooth. Researchers in the U.S. and Poland reviewed the current literature on erbium laser-assisted ceramic debonding to identify the parameters needed for safe application of this method.

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Monitoring mental stress: Nanosheet-type tin oxide gas sensors provide quantitative measurement of emotional tension

By Lisa McDonald / October 28, 2022

Determining when to seek help for mental stress can be difficult. However, the recent identification of discernible odor substances that emanate from the skin during emotional tension may offer a way to quantifiably measure mental stress. Two researchers in Japan propose nanosheet-type tin oxides could be used as gas sensors to detect these substances.

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Kicking cancer to the curb: A review of ceramics and glasses for cancer diagnosis and therapy

By Lisa McDonald / October 4, 2022

To enable effective cancer detection and treatment, ceramic and glass biomaterials have been heavily investigated. A recent review paper provides an overview of the main ceramics and glasses being explored for this purpose.

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Behind the label—study shows diamond rotary instruments marketed for removing zirconia restorations do not perform better than conventional ones

By Lisa McDonald / September 30, 2022

Removal of zirconia dental restorations is challenging and time consuming due to their high strength. Manufacturers offer diamond rotary instruments marketed specifically for removing zirconia restorations, but a new study reaffirmed that these instruments do not perform better or generate less heat than conventional ones.

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Addressing the real problem: Through muscle regeneration, graphene-polymer matrix lowers risk of rotator cuff retear injuries

By Lisa McDonald / August 23, 2022

Most rotator cuff repair procedures focus on the tendon, but the real problem is that the muscle degenerates and accumulates fat. University of Connecticut School of Medicine researchers led by ACerS Fellow Cato Laurencin developed a graphene-polymer matrix that induces a reversal of muscle degeneration, thereby greatly lowering the risk of rotator cuff retear injuries.

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Digital light processing allows for design of fine-featured bioceramic scaffolds

By Lisa McDonald / August 12, 2022

Digital light processing is one of the most promising additive manufacturing technologies for preparing ceramic scaffolds with complicated fine features. Three recent studies by several groups in China explore the use of this technique to fabricate bioceramic scaffolds for medical applications.

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Boron nitride nanosheets show promise as antibacterial drugs

By Lisa McDonald / June 24, 2022

Some materials being investigated for use as antimicrobial agents face the limitation that they cannot tell the difference between bacteria and mammalian cells. Researchers led by Soochow University found boron nitride nanosheets do not face this limitation.

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Porosity-based heterojunctions may offer efficient and safer optoelectronic implants

By Lisa McDonald / June 14, 2022

The miniaturization of implantable medical devices is necessitating development of alternative energy systems. Researchers at the University of Chicago created porosity-based silicon heterojunctions that offer an efficient and safer way to perform optoelectronic modulation of tissues.

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A sweet demonstration: Ceria helps make miniaturized implantable glucose fuel cells possible

By Lisa McDonald / June 10, 2022

Glucose fuel cells allow for significant volumetric scale-down of implantable devices because they do not physically store energy like batteries. However, cells that use polymer-based electrolytes face some limitations. Researchers from MIT and the Technical University of Munich developed glucose fuel cells using a ceramic membrane that overcome these limitations.

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Inorganic materials as disinfectants—new glass and clay-based samples demonstrate broad virus inactivation

By Lisa McDonald / February 15, 2022

Disinfectants based on inorganic materials have gained much attention recently due to setbacks with organic-based disinfectants. Researchers in Spain investigated the ability of a soda-lime glass and nanoparticle-embedded clay to inactive different types of viruses.

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