Cross training may increase office productivity

An AP scapular projection with accurate positioning demonstrates

1. almost superimposed anterior and posterior glenoid fossa margins. 2. the vertebral scapular border without thoracic cavity superimposition. 3. the humeral shaft at a 90-degree angle with the body. 4. the supraspinatus fossa and superior scapular angle without clavicular superimposition. a. 1 and 3 only b. 1, 3, and 4 only c. 1 and 2 only d. 3 and 4 only

The periodontal ligament space appears as a thin radiolucent line between the lamina dura and the root of the tooth

Indicate whether the statement is true or false