William M. Johnston

William M. Johnston's research focuses on the science of dental materials, especially how properties like color, translucency, and surface characteristics affect the appearance and performance of restorations such as crowns, veneers, and implant components. Much of the work involves optical measurement techniques (e.g., color-matching, imaging under different lighting conditions) and mechanical testing of implant and prosthetic systems. This research is relevant to students interested in the applied physics and engineering aspects of restorative and prosthetic dentistry.

Publication output rose to a peak around 2020 and has gradually declined since, settling at a lower but steady rate in recent years.

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