Stomatologia最新文献

This article presents the results of a clinical study conducted in the department of Operative Dentistry of the University of Athens. The reasons for placing and replacing restorations, the restorative material used, patient's age and sex, teeth and surfaces involved and age of replaced restorations were the variables studied in 1520 restorations. The results revealed that 53.2% of the restorations were placed for the first time. 92.6% of the new restorations were placed due to primary caries. Secondary caries were the reasons for the 35% of the replaced with amalgam restorations. Secondary caries and color mismatch were the reasons for the 25% and 23.2% respectively of the replaced with composite restorations.

There are two cases of general diseases [progressive systemic sclerosis (PSS) and nasopharyngeal cancer], which assumes with dysfunction of the stomatognathic system. The authors which are aware of all above made an extensive reference of the details of these diseases and in relation with the dysfunction of the stomatognathic system. The conclusion of this paper is the important role of clinical consideration for the differential diagnosis of similar cases.

A clinical study was conducted to assess the reliability of electrical and thermal pulp tests and to correlate the results with the true pulp status, as this was proved after the access opening, as well as to determine which clinical factors might be associated with the tests reliability. The results showed that pulp tests are reliable in a high grade and that there is no significant difference in their reliability.

The root canal treatment of pulpless teeth with open apex was always a problem in the field of endodontics. On occasions, various techniques have been used for the hermetic sealing of these teeth, and finally, the method of root canal filling with calcium hydroxide and CMCP (camphorous para mono chlorophenol) was adopted. This method was considered to be the most biological, and as it was proved the influence of calcium hydroxide, closing of the apex was achieved by various types of tissues. In this study we describe the problems that arise in such cases, as well as the various treatments. Finally cases of children who came for therapy in the clinic of Endodontics will be presented.

The first part of this review, refers to the use of electromyography (EMG) in studying the stomatognathic system. EMG is used for the study of function and fatigue of the masticatory muscles, the recording of centric relation etc. The behavior of the masticatory muscles (especially of the masseter and the temporalis) in the cases of TMJ dysfunction are also reviewed. In the second part, there is a description of the use of EMG biofeedback in the treatment of TMJ dysfunction, myofacial pain and bruxism. Finally, there is reference to the portable modular EMG biofeedback units.

Three hundred patients with complete dentures were examined, to find out if there exists a relationship between denture cleansing and denture stomatitis prevalence. The study revealed that: 1. Denture stomatitis prevalence was 46%. 2. Mechanical means for denture cleansing were used by 84.67% of all patients, chemical means for denture cleansing were used by 5.33% and a combination of mechanical and chemical means by 10%. 3. Dentures with satisfactory cleanliness were used by 50.33% of the whole sample of patients and dentures with unsatisfactory cleanliness by 49.67% of all patients. 4. There exists a strong significant relationship (p less than 0.001) between dentures with unsatisfactory cleanliness and denture stomatitis prevalence. 5. There exists no significant relationship (p less than 0.05) between methods for denture cleansing and denture stomatitis prevalence.

After a literature review concerning the special needs in the prosthodontic rehabilitation of patients with deep over-bite, the problems and solutions are described and discussed. The prosthodontic rehabilitation of two cases follows and is described step by step.

The subject of this study is to define the degree and the incidence of attact of dental caries. For this purpose 599 children were examined aged between 6-12 years. The examination and the recording of the sample was according to the criteria of WHO. The study has shown that the attact of dental caries is high in dmfi and DMFI 2.88 and 1.59.

The authors in this study have been used the apexes, 4 mm in length, from 93 first lower premolars, from patients over 45 years old. All specimens were prepared for SEM visualization. It was found that in 84.95% of them there was present at least one accessory foramen. All accessory foramens has a diameter less than 100 microns, with a mean value 52 microns. Also in a 74.19% of the 93 teeth, there was present a second main foramen. These foramens had a diameter more than 100 microns, with a mean value 368 microns. Finally it was found that when an extra main foramen was present, the mean value of the diameter remained the same and not smaller than that of the teeth with one main foramen. This may be of a significant clinical value, because this means that the pulp takes extra volumes of blood from these extra foramens.