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Park, Sang

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Park

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Park, Sang
Author's Publications: search.filters.isAuthorOfPublication.50b433ce-4e94-49b6-8546-86339881a269

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    Mechanical Properties of Surface-Charged Poly(Methyl Methacrylate) as Denture Resins
    (Hindawi Publishing Corporation, 2009) Park, Sang; Chao, Maggie; Raj, P. A.
    The aim of this study was to examine the mechanical properties of a new surface-modified denture resin for its suitability as denture base material. This experimental resin is made by copolymerization of methacrylic acid (MA) to poly(methyl methacrylate) (PMMA) to produce a negative charge. Four experimental groups consisted of Orthodontic Dental Resin (DENTSPLY Caulk) as a control and three groups of modified PMMA (mPMMA) produced at differing ratios of methacrylic acid (5 : 95, 10 : 90, and 20 : 80 MA : MMA). A 3-point flexural test using the Instron Universal Testing Machine (Instron Corp.) measured force-deflection curves and a complete stress versus strain history to calculate the transverse strength, transverse deflection, flexural strength, and modulus of elasticity. Analysis of Variance and Scheffe Post-test were performed on the data. Resins with increased methacrylic acid content exhibited lower strength values for the measured physical properties. The most significant decrease occurred as the methacrylic acid content was increased to 20% mPMMA. No significant differences at P < .05 were found in all parameters tested between the Control and 5% mPMMA.
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    The Impact of Integrating Oral Health Education into a Medical Curriculum
    (S. Karger AG, 2016) Park, Sang; Donoff, R.; Saldana, Fidencio
    Objective: The purpose of this study was to evaluate our pilot program incorporating oral health education into the medical curriculum by evaluating students' perspectives on the oral health curriculum. Subjects and Methods Two hundred second-year students were asked to fill in a presession survey online regarding their familiarity with basic oral health concepts and their comfort level with performing oral examinations, and a postsession survey on paper that repeated the presession questions and added questions on the effectiveness of the session. Results: Of the 200 students, 164 (82%) participated in the surveys. The pre- and postsurvey results showed that the session helped students become more comfortable with performing oral examinations and recognizing risks for periodontal disease, with an increase from 40 (27%) to 119 (82%) and 51 (35%) to 124 (86%), respectively. Conclusion: In this study, the oral health education session contributed to an increase in student awareness and understanding of oral health. Considering the reported effectiveness of the interactive session on student comfort with performing a basic clinical examination, this model shows promise for further use in other institutions.