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Introduction

Previous articles in this series have largely been focused on the technical details of how to capture images in dental photography. Subjects such as correct camera settings, depth of field, focusing, framing, and lighting have been covered. All these concepts must be applied to obtain the best possible results. Once technical mastery of the basic methods has been achieved, photographers can modify the factors to render more artistic interpretations of dental materials, which can in turn be used for education and inspiration.

This article will look at one such image and attempt to explain some of the factors that needed to be considered to achieve it. In this image, three basic types of materials were used, all with different optical properties. This makes photographic reproduction challenging (Fig 1). First, there are abutments in the cast and guide fixation pins. These metal elements are two different colors of highly reflective, anodized titanium. Second, there is a translucent 3D printed surgical guide base, for a stacked guide system. Third, there is a cast, made from a 3D printed resin. It is completely opaque, with a matte, non-reflective surface. Each of these requires consideration.

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Fig. 1: Laboratory photo of 3D-printed cast, with implants in planned placements, abutments placed, and 3D-printed stackable guide frame. Illustration of planned future implant angulation as well as abutment direction can then be more precisely predicted (Image courtesy of University of Florida Center for Implant Dentistry)
Reflective materials

The photography of reflective objects, normally metal or glass, results in reflections on the surface of the subject that must be considered. Any curved surface will automatically reflect a distorted view of the surroundings much like a mirror (Call-out 1).

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Call-out 1: Reflective materials

For this reason, when this image was captured, it was decided to use a photography lightbox. This could be any container which can hold the subject and has an opening through which the camera can take a picture. One example of this is a tabletop product photography setup (Fig. 2). Use of a lightbox for metallic objects can be as simple as using regular copy paper to surround the object, an especially useful technique for single implant parts. Surrounding reflective subjects with lighted white fabric or paper results in pleasing white highlights that are not excessively contrasted.

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Fig. 2: The photography setup for this photograph is quite straightforward, with proper control of light direction and spread being key factors in achieving proper rendering of all components