Hellenika stomatologika chronika. Hellenic stomatological annals最新文献

The aim of the present study was the evaluation of tissue response under ceramometal pontics that had smooth convex tissue surfaces and were pressing against the soft tissues of the residual ridge while the subjects were applying excellent plaque control. Fixed patial dentures were fabricated full filling the above criteria. Clinical and histologic evaluation followed. The results led to the conclusion that pressure from convex and smooth pontics under the condition of excellent plaque control do not create inflammation, while the pressure is neutralized as the time goes by through modification of the morphology of the soft tissues adjacent to the pontics.

Prime requirement for successful root canal therapy is the hermetic obturation of the root canal. Root canal sealers contribute a lot in achieving the three dimensional hermetic obturation of the root canal. In this in vitro experimental study the sealing ability of six root canal sealers (Grossman, Roth 801, Hermetic, Diaket, AH26, Endomethasone) was evaluated. A hundred and twenty single rooted human teeth, divided into six groups, were prepared and obturated with lateral condensation gutta-percha technique and the sealers under evaluation correspontantly. The extent of mikroleakage of Indian ink in cleared samples was calculated under stereoscopic microscope. Results obtained showed minimum leakage with Roth 801.

Temporary filling materials are used in endodontics to prevent contamination of the root canal system during intertreatment visits. The effectiveness of these materials in preventing the ingress and egress of fluids, salivary ions and bacteria is dependent upon a numerous physical and mechanical factors. This presentation was conducted to compare the sealing ability of several products that were recommended for the temporary restoration of teeth undergoing endodontic treatment.

It's well known that antibiotics are among the most widely used drugs in medicine. The administration of antibiotics in oral surgery offers a great deal, as far as the prevention of post-operative complications as well as the cure of infections diseases are concerned. Antibiotics, as all other drugs, in cases of improper use can cause harmful effects on the body. Antibiotics are used irrationally in dentistry and even more so in oral surgery for the cure of diseases which are not indicative or for the prevention of probable. As a result, there has been an increase in the frequency of their toxic side-effects plus the prevalence of resistant microorganisms. This paper describes the indications and side-effects of antibiotics in oral and maxillofacial surgery.

In achieving infection control in the dental office and the dental laboratory it has been suggested that impressions made in the dental office should be disinfected before they are send to the dental laboratory. In this study we examined the solubility and the linear changes of some elastomer impression materials after their immersion in disinfection agents after ten, twenty and forty minute time intervals. The disinfection agents used were: 75% alcohol, domestic chlorine 10%, the agent sterile pack (isopropyl alcohol) and 2% activated glutaraldehyde (SIDEX). Water was used as control. Our findings show that all types of elastomer impression materials appear to suffer insignificant changes both linear and weight-wise but polyether impression materials show significant changes in almost all the disinfection agents that were used and the time intervals that were studied.

Oral lichen planus is a common dermatologic disease of unknown etiology, with characteristic clinical manifestations from the skin and the oral mucosa as well. In our study we analyzed the observations in 228 patients with oral lichen planus. The location and the type of the oral lesions of this disease are discussed as well as the prevalence of age-sex and the incidence of the disease. The results of our findings can be summarized as following 1) The reticular type is the most common clinical form. 2) Buccal mucosa is the most frequent location. 3) Females are affected more frequently. 4) The most frequent age in which the disease appears is the 6th decade. The importance of these conclusions are compared and discussed with the findings of other authors.

This paper is a review article on the properties of the polycarboxylate and glass-ionomer cements. Much research has been done during the past years on the strength, solubility and adhesion of these cements with the dental tissues and the conclusions on these topics are discussed in this paper.

The author starts by briefly reviewing the meaning and applications of Forensic Dentistry emphasizing the ethical and legal responsibility of the dentist who is called upon by the police and the Service of Forensic Medicine to contribute to the identification of a dead person. Next, the author describes an interesting case where the identification was possible by documenting more than ten points coinciding between the dental record of the person suspected to be the dead and the findings from the examination of the oral cavity of the body.

The purpose of this study was to determine the quality of 1310 fillings among third-year dental students of Athens University. The mean age of fillings was 5.6 years. The classification of fillings into three categories of quality showed that 41.4% were satisfactory, 47.2% were acceptable but needed to be refinished, and finally 11.4% had to be replaced. The main reasons for failure were poor performance of anatomic form, secondary caries, poor marginal adaptation and soft tissues damage. The comparison of quality of fillings by place and type of provider showed that University Dental Clinic's fillings were of significantly better quality than those rendered in private or public dental clinics either in Athens or elsewhere. On the contrary the comparison of quality of fillings by place and type of provider (University Clinic excluded) did not show any significant differences.

The authors studied the findings from the clinical examination of the oral cavity of one hundred drug addicts that were prisoners at Korydalos prison, in order to evaluate the incidence and the possible correlation of these findings to the drug abuse. This study revealed that drug addicts present lesions of the oral mucosa such as redness of the pharyngeal mucosa (57%), melanchromatic spots on the lips (35%) and hairy tongue (57%). Also, a high incidence of carious lesions was found (46%), of missing teeth (42%) and of periodontal disease (57%). These percentages are much higher than those found in a random population. It was also revealed that in the above group there was a high incidence of serum hepatitis (23%) and of AIDS (8%), while other systemic diseases were also found.