Registros intermaxilares en pacientes edéntulos bimaxilares con técnicas convencional y digital. Serie de casos

Abstract

In prosthetic rehabilitation of the bimaxillary edentulous patient, the recording of intermaxillary relationships determines a critical stage in the success of the treatment and influences the aesthetics and functioning of total prostheses. To obtain the intermaxillary records, bite wax rims are usually used (conventional TC technique), and for total prostheses made with CAD-CAM technology the intermaxillary records are obtained with trays equipped with an intrabuccal tracer (TD digital technique). The objective of this research is to compare conventional and digital techniques in the taking of intermaxillary records by means of Ricketts’ cephalometric analysis. The study is a series of cases, consisting of five totally edentulous patients aged between 61 and 90 years. Two intermaxillary records were made for each patient, one for conventional technique and another for digital technique, accompanied by a lateral cephalic radiography with each one of the registers placed in the buccal cavity, to obtain the lower facial height (AFI) and the facial convexity (CF) of Ricketts. The results obtained showed that there is little variation between the methods used. The mean CF was -0.4 mm ± 2.88 on the CT and -1.0 mm ± 2.55 on the TD, while the mean of AFI was 41.6 ° ± 4.45 on the CT and of 41.4 ° ± 5.59 on the TD, by which both can be used reliably in the dental practice.