GROSS ANATOMY

Detailed explanation-1: -The purpose of creating a reference radiograph is to determine proper film densities. The reference radiograph tests the strength of the developer solution. If the developer solution is too weak in strength or too cool in temperature, the densities on the resultant radiograph will appear lighter.

Detailed explanation-2: -A stepwedge is placed on an exposed film for a certain amount of time; its used to determine the strength of the solution, whether or not the developer is too weak.

Detailed explanation-3: -Developer solution is used in the darkroom for developing (i.e. converting latent image to visible image) x-ray films used in conventional (screen film) radiography.

Detailed explanation-4: -Unmatched Densities-If densities seen on daily radiographs appear LIGHTER than those seen on this radiograph, developer solution is either WEAK or COLD.

Detailed explanation-5: -A High Purity Aluminum Step Wedge allows you to evaluate the performance of the X-ray machine and the processing system. Step wedges can also be used in the calibration of x-ray machines, and are used as a quality assurance test in monitoring the film processing used in dental radiography.