Handling Characteristics and Colloidal Stability of an Orthodontic Sealant Containing Microcapsules

Patients treated with orthodontic brackets face an increased risk of biofilm accumulation which can lead to white spot lesions and ultimately cause cavitation. The application of an orthodontic sealant would act as a physical barrier between the bracket and superficial enamel. The sealant formulations contain microcapsules capable of releasing bioavailable remineralizing ions. The addition of the novel ion-releasing microcapsules within the sealant required the study of handling characteristics and colloidal stability of the formulations. Orthodontists require consistent and predictable handling which is reflected by colloidal stability. Multiple formulations were developed with varying ratios in the continuous phase, glass loading, and fumed silica loading to show their effect on flow and stability. Low stress monomers and a low viscosity monomer was utilized in the formulations. Results demonstrated that glass loading had an effect on flow and the low viscosity monomer had an effect on both flow and stability. The increase in glass loading decreased the average flow of formulations. The increase in low viscosity monomer ratio increased both flow rate and stability.

Grantor dc:publisher

Creighton University

Year dc:date.issued

2020

Author dc:creator

• Banketov, Alexander

Advisor dc:contributor.advisor

• Gross, Stephen M.

Statement dc:rights

• Copyright is retained by the Author. A non-exclusive distribution right is granted to Creighton University and to ProQuest following the publishing model selected above.

Language dc:language.iso

en_US

Handle dc:identifier.uri

http://hdl.handle.net/10504/127017

OAI identifier oai:identifier

oai:cdr.creighton.edu:10504/127017