Читать книгу Fundamentals of Fixed Prosthodontics - James C. Kessler - Страница 61

To properly evaluate a patient’s occlusion, it is mandatory that diagnostic casts be placed in an articulator in approximately the same relationship to the temporomandibular joints (TMJs) as that which exists in the patient.¹ A facebow registration is used to mount the maxillary cast on the articulator so that it is properly located both anteroposteriorly and mediolaterally.^2,3 To be used enough to make a real contribution to the improvement of quality dentistry, a facebow and articulator that possess reasonable accuracy, are simple to assemble and use, and can be set up relatively quickly should be selected.

Information collected in an informal manufacturer’s survey of the 67 North American dental schools indicated that 31 schools were using a Whip Mix articulator, 29 were using a Hanau (Whip Mix), 4 were using a Stratos (Ivoclar Vivadent), and 3 were using a Panadent. Models used varied among the schools, and some schools used one brand of articulator for one discipline and another brand for a different discipline. Each of the following sections on a facebow-articulator combination is meant to stand alone (ie, everything the reader needs to know about the use of a system is contained in that respective section). The one exception lies in the description of a mechanical anterior guide. Although similar devices are available for all three articulators, use of the mechanical anterior guide is described only for the Hanau articulator.