The aim of the present study is to measure the maximum bite force (MBF) in the natural dentition with the help of a force-measurement device -gnathodynamometer, designed and constructed specially for the purpose of the study. Materials and methods: 80 students from FDM-Sofia, aged between 20 and 32, were tested. Each student was given instructions about the study and its method, and the tests were carried out thereafter. The tip of the force-measuring tensometric module of the gnathodynamometer was first placed in the area of the frontal teeth and the patient was asked to bite firmly, until the first signs of pain were felt. Afterwards the device was placed in the area of the first left molars and the first right molars. The whole study was repeated three times. The results were recorded in a specially designed table. Results: The clinical study indicated that the maximum bite force is significantly greater in male students as compared to female students. This phenomenon was observed during measurements in the three regions -frontal, left molars and right molars. It was found that in both genders the maximum bite force is greater in the distal regions as compared to the maximum bite force in the frontal region. Conclusion: Our research proves that the maximum bite force in male subjects is greater than that in female subjects. The values in the area of the left and right molars are almost equal, while the values in the molar regions are about 3 times greater than those in the frontal region
One of the main issues with complete dentures is their retention and stability while functioning. People would like to eat with their dentures on in a high-quality way, without having the feeling of the presence of a foreign body in their oral cavity. Another serious problem is the patients' discomfort when they are fitted with new complete dentures and the impeded adaptation to them. On the Bulgarian and world markets, there are a lot of products aimed at eliminating these problems. Some of them are denture adhesives, also called gules or denture fixatives. There is a widely spread opinion they help only in case the dentures are often disconnected and are poorly wrought, but both a large part of the patients and some dental, medical doctors are not well acquainted with the advantages and shortcomings of denture adhesives; the indications and contraindications to their application. In Bulgaria, the most widely adopted denture adhesives are Corega, Protefix, Dental, Oradey, etc.
The following article presents the utilization of hollow posts as a treatment alternative for teeth with severe hard tissue loss that need an endodontic therapy and therefore a reliable pre-endodontic build-up and prosthetic provisionalisation. Often dentists confront a clinical situation where teeth with not enough ferrule are to be endodontically treated before crown lengthening procedure or orthodontic extrusion and in consequence they have to have a sound build-up preventing leakage. The application of hollow posts offers predictable treatment results and in some cases it might be the only procedure possible preventing tooth extraction.
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