Abstract: Disclosed is a dental X-ray film packet 12 holder having a substantially flat, substantially rigid body member 14. The body member 14 has an anterior end 18 including a first film packet-holding slot 16 extending into the body member 14, and a posterior end 22 including a second film packet-holding slot 20 extending into the body member 14. Between the anterior and posterior ends 18 and 22 is a lateral side edge 28 from which extends guideposts 24 and 26 used to correctly position the cone 62 of an X-ray camera with respect to the film packet 12.