Fogorvosi szemle, 2006 (99. évfolyam, 1-6. szám)
2006-04-01 / 2. szám
72 FOGORVOSI SZEMLE »99. évf. 2. sz. 2006. date are functioning well and there have been no complaints. We have found no reference in the literature to bridgework with connectors situated in the extracoronal bridge part. Our experience leads us to recommend their introduction in everyday practice. DR. P. KISS,1 DR. G. KISS,1 DR. P. HERMANN,1 2 G. DUCZA,3 DR. M. JÁHN,2 DR. J. BORBÉLY,2 DR. J. GERLE4 1 Markusovszky Hospital of County Vas and City of Szombathely;2 Semmelweis University, Faculty of Dentistry, Department of Prosthodontics; 3 Ducza Dental Laboratory; 4 Semmelweis University, Faculty of Dentistry,Training Unit 3D-ULTRASONIC NAVIGATOR FOR PROGRAMMING FULLY ADJUSTABLE ARTICULATOR Highly accurate transfer of individual angles and planes of the skull from patient to articulator play an important role in precise construction of dental restorations. Semiadjustable, and fully adjustable articulators are helpful means in fabricating occlusal surfaces in harmony with the principles of gnathology and optimal tooth contact. ARGUSdigma on the basis of a 3D ultrasonic survey provides the necessary information for analyzing movements of the mandible. With the help of ARCUSdigma all relevant programmable values for the fully adjustable Protar articulator are reliably determined. Functional analysis additionally allows movements of the mandible to be examined for functional disturbances during the course of the movement. This presentation focuses on measurement of the values and steps to be taken in programming the fully adjustable articulator, with some basic information on the concept and operation of this instrument. Unlike current measuring systems with extra-oral recording and facebow transfer, ARCUSdigma imitates the concept of a virtual articulator. Extra-oral recording systems produce projection failures, and have difficulties caused by the inability to measure the intercondylar distance. To eliminate this problem, a totally new concept has been developed for ARCUSdigma. For mounting the maxillary casts instead of facebow transfer, employment of the special bitefork for the upper jaw allows ARCUSdigma to recognize the location of the upper jaw to the condylar joints of Protar articulators. This enables the 3D-movement of the lower jaw to be calculated for the three points in the articulator. These points are the 2 joints of the articulator and the adjustable incisal plate. ARCUSdigma records all setting values for the fully-adjustable articulator in 5 to 10 minutes. This reliable ultrasonic measuring system with its simple and accurate transfer of information minimalizes the need for occlusal adjustments of new prosthesis. DR. P. KIVOVICS, DR. P. SAJGÓ, DR. M. JÁHN, DR. E. KULCSÁR Semmelweis University, Faculty of Dentistry, Prosthodontic Department, Budapest EXPERIMENTS WITH TITAN ALLOYS IN PROSTHODONTICS Dentistry has been using pure titan and various types of titan alloys, however, these were used and produced by cutting (implantations) or stretching (orthodontic arches). The progress of the technology of casting metal in odontotechnology in the last 10 years created the opportunity to prepare titan alloys by losing wax method, which makes it possible to produce the metal frame of fix and removable dental appliances out of titan alloys. The use of titan alloys in dentistry is not only due to titan’s beneficial physical characteristics, but also to the fact that there has been no report on allergic reactions to titan so far in the literature. The fact that titan is hypo-allergic and that the number of alloy metals is rather small, makes it a reasonable choice in the case of patients with metal allergies, since the gold alloys used in this field so far do not meet the conditions of being hypo-allergic. Titan alloys are suitable for the production of the metal frames of both fixed and removable dental appliances, which eliminates the considerable difference in the electrochemical potentials in the mouth. Appropriate surface treating of titan alloys makes it possible to safely produce titan-ceramics. Authors report on five years of practical experience using titan alloys in producing dental appliances. They place special emphasis on unique characteristics of titan alloys, as well as the possible mistakes that should be avoided in order to use them successfully in prosthodontic. DR. A. KOMLÓSSY HELIO-D KFT, Miskolc PREPARATION FOR INCIDENTS IN THE DENTAL SURGERY In all of our practice it is frequently encountered that the patients have a strange symptom during medical attendance. We all have some kinds of experience to solve this kind of situations, but ussually the elementary knowledge is not enough. The author briefly sums up the duties, and the proper measures that must be taken is the phase of preparations, and just the same across the whole practice. In this lecture some algorithms will be reviewed that are covered by the relating chapters of oxiology and emergency medicine.
