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Auctus: The Journal of Undergraduate Research and Creative Scholarship
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Investigation Into The Role Of Manganese In The Growth Of The Opportunistic Pathogen Streptococcus Sanguinis, Brittany Spivey
Investigation Into The Role Of Manganese In The Growth Of The Opportunistic Pathogen Streptococcus Sanguinis, Brittany Spivey
Auctus: The Journal of Undergraduate Research and Creative Scholarship
While Streptococcus sanguinis plays a beneficial role in the oral cavity as a competitor of Streptococcus mutans and Streptococcus sobrinus, the bacteria that produce dental caries, it can cause deadly infective endocarditis if given the opportunity to colonize the vegetations that form over damaged endocardial tissue. Pre-existing heart conditions, surgery, and intravenous drug use predispose individuals to endocarditis. S. sanguinis growth and consequential virulence is significantly impeded by restriction to manganese. This is due to the resulting overwhelming oxidative stress and formation of reactive oxygen species which damage DNA and other cellular components. Manganese is essential for S. sanguinis proteins …
Osseointegration Of Wrapped Dental Implants In Rabbits, Alex Whitehead
Osseointegration Of Wrapped Dental Implants In Rabbits, Alex Whitehead
Auctus: The Journal of Undergraduate Research and Creative Scholarship
Edentulous patients (those lacking teeth) require one of two approaches to augmentation: inserting a vertical bone graft, or subperiosteally anchoring a device on which an implant can be attached. Bone grafts have had unpredictable results and can undergo resorption over time, compromising implant stability and success. As of the subperiosteal approach, current materials have not proven to directly integrate with the bone, in a process termed osseointegration. Therefore, we used additive manufacturing to create a Ti6Al4V alloy surface with a specific roughness to determine if it would be osseoinductive in a challenging rabbit model over six weeks.
Computer Simulation Of Tooth Mobility Using Varying Material Properties, Allison R. Beckmann, Lena Unterberg, Stefan Raith, Horst Fischer
Computer Simulation Of Tooth Mobility Using Varying Material Properties, Allison R. Beckmann, Lena Unterberg, Stefan Raith, Horst Fischer
Auctus: The Journal of Undergraduate Research and Creative Scholarship
Tooth mobility is the major cause of stress on a tooth implant or partial denture and often results in the damage of the device. For many prosthetic devices like dental bridges, a partial denture used for a person who is missing a tooth to give the appearance and function of a tooth, mobility can cause up to double the amount of stress in comparison to a fixed model. Creating a computer simulation of tooth mobility using Finite Element Analysis allows one to understand and predict this movement in order to improve future dental prosthetic devices. The main cause of tooth …