Files
Abstract
Cephalometrics means simply "measurement of the head," and since the nineteenth century, anthropologists have used the craniostat to make measurements on dried skulls. The desire to make these same detenninations in the living patient stimulated the development of cephalometri.c radiology. Sorenson, Hixon and co-workers6 ,7,e ,9 combined the placement of implants in the jaws, as described in 1955 by :Bjork, lO with the concept of triangulation from a three-dimensional cephalometric technique, as presented by Schwarz 11 in 1943. It is hoped that this technique will provide sufficient reliability to allow assessments of spatial changes of the skull and teeth suitable for use in longitudinal studies. Although the reliability of the above technique has already been investigated in vitro by Dennis,9 it is the purpose of this paper to establish the within-patient reliability. It is also intended to examine implant stability within the facial bones of the changing child.