[Conventional and 3-D cephalometry: descriptive analysis]

Today, the three dimension (3D) teleradiographic different construction enable a three dimensional studies of different mandible structures. Then we can approach the result obtained with the news images processing techniques like scanner. In this paper we present the different between the measure provided by different pictures (lateralis, frontalis, axiales) and the three dimensional measure which is real. The best 3D values correlation is obtained with the frontalis.