Sarah S Mikhail's research while affiliated with The Ohio State University and other places

Publications (7)

Article
The overall objective of this study is to confirm the method of determining the accuracy of Kubelka‐Munk reflectance theory (KMRT) for composite materials after undergoing aging unrelated to surface exposure. The specific aims of this study include comparisons of optical characterizations for two dental resin composite materials before and after ag...
Conference Paper
Objectives: The popularity of over the counter (OTC) tooth whitening products stems from their availability, ease of use, affordability, and rapid mode of action in yielding desirable effects. Several published studies have reported detrimental effects on hard dental tissues due to bleaching, particularly affecting enamel hardness. Products are adv...
Article
The aim of this study is to confirm the theoretical color predictions for single and double layers of dental composite materials on an opaque backing. Single and double layers of composite resins were fabricated, placed in optical contact with a gray backing and measured for spectral radiance. The spectral reflectance and color were directly determ...
Conference Paper
Objectives: Tooth whitening (bleaching) products have become extremely popular because of their relative ease of use and affordability. Several products are available which, to ensure acceptable esthetic results, require multiple applications over extended periods of time involving several days. Prolonged exposure to such products has been shown to...
Article
The objective of this study is to determine the effect of interfacial reflection correction (IRC) on the accuracy of this reflectance model for contemporary dental resin composite materials. Visible reflectance spectra were obtained for varying thicknesses (∼0.3-1.2mm) of five shades of each of two brands (Herculite Ultra and Kalore) of dental resi...
Conference Paper
Newer composite materials have been recently introduced to provide superior esthetics and/or physical properties. Objectives: To compare basic optical properties including optical absorption and scattering spectra, the translucency parameter and the color at infinite thickness of 5 shades of 2 commercially composite brands and to determine their...

Citations

... 5,8 Yet, such materials should fulfill the mechanical and biocompatibility requirements needed for the oral service and satisfy patients and clinicians for the esthetic demands. 5 This is why color and optical properties measurement and characterization, [9][10][11][12][13][14][15][16][17] and visual color differences evaluation in dentistry [18][19][20][21][22][23] are of utter importance. Furthermore, several studies [20][21][22][23][24][25] supported the CIE recommendation 26 to use CIEDE2000, 22 formula to evaluate this color differences. ...
... 5,16 However, few studies applied the K-M theory to RC restorative material. [17][18][19] One of the earliest studies that applied the K-M theory to investigate the effect of layering RC was led by experts in the field of color in dentistry, although this was conducted using compomers. 17 • Increase E layer thickness resulted in increased value (L*). ...
... The TP of a material is defined by its difference in color on a white and black background [3]. The translucency of a material is related to the extent or abundance of absorption, light scattering, organic matrix, and filler particles [17,26]. AAA decreased the TP values of the resin composite materials used in this study. ...
... Restoration of anterior teeth must meet high aesthetic demands especially the Class IV defects. 1 These defects involve the inciso-proximal edges of maxillary anterior teeth. 2 Direct Composite restoration is the most sought-after option for restoring these defects followed by indirect restorations like Veneers, Laminates etc. 3,4 However, the invasive nature of these indirect approaches gives an advantage to the direct approach of composite restoration over them. 5 One of the main difficulties encountered with conventional class IV direct composite restorations is the layering management in terms of three-dimensionality and shape control. 6 The major concern is the predictability of the aesthetic outcome, which is closely linked to the clinician's skills. ...