Revue d'odonto-stomatologie最新文献

The authors suggest studying the principal oral manifestations of acquired bullous dermatosis, such as malignant pemphigus, bullous pemphigoid, cicatricial pemphigoid, bullous polymorphe erythema, pluri-orificial ectodermosis, Lyell's syndrome, bullous toxidermia, bullous lichen planus and porphyria. These diseases will be described for the following aspects: clinical manifestations, diagnosis, evolution and treatment.

The anxiolytic and analgesic effects of 10 mg of orally administered diazepam (Valium) were assessed on 10 volunteers. The electrodermal activity was recorded during two experimental sessions while cutaneous electrical stimulations were administered to the subjects. On one hand, the anxiolytic activity of diazepam could be observed by a decrease of both autonomic nervous system and anticipatory activities. On the other hand, an increase of the pain threshold could be shown under diazepam by lower responses to the stimulations. These results confirm that diazepam can be useful in anxious patients undergoing dental procedures.

In this study 31 clinical cases were compared and a statistical analysis was realized based on variations of apical resistance points quantified in ohms. For each case the pulpal pathology and the type of irrigants used were systematically reported in a table. The electronic endodontic measures which are radiographically controlled, result from a numeric conversion of electrical signals. This numerization facilitates the memorization of the resistances measured at the sulcus and during endodontic root canal preparation. Analysis of the means and the standard deviations emphasizes the lack of reliability of precalibrated electronic devices or individually standardized instruments, used to measure the working length. This study also shows an ohms drop at the apical constriction, depending on the electrochemical pathological conditions of the canal or of the periapical area.

Some of various iatrogenic diseases, during manual endodontic treatments, are analysed, from detailed clinical instances. Discussion leads to insist upon some classical and original ways of prevention. From general point of view, it is unavoidable to realize with gentleness, never forcing, endodontic proceedings. Deep perception of internal dental morphology is quite necessary and must be respected during treatment. Besides, histo-pathological modifications of parietal dentine have to be known, not only from intellectual but also from tactile point of view. Each practitioner will progressively improve.

This jesuit, humanist devotee is the author of many spiritualism written works and of an "Essay des Merveilles de Nature" (Essay on Nature's Marvels), original book of personal observations. Concerning Odontology, BINET still belongs to Middle-Age, failing to recognize anatomy and esthetics, in spite of Renaissance.

For years, dental profession tried, to find an ideal material and technique, for improving esthetic and functions. The use of porcelain fused to metal crowns, offered the opportunity to build up esthetic crowns on anterior and posterior teeth; however the metal substructure of porcelain fused to metal crown prevent us in many cases to achieve an ideal esthetic, as far as translucency is concerned. The ceramic built up on an alumina core, and the new castable ceramics seam to eliminate this problem, but the laboratory procedures are time consuming and complex, and their mechanical strength are still questionnable.

The Neisseria Gonorrhoeae, the etiologic agent of the gonococcic urethritis, can produce other clinical manifestations, such as stomatitis, TMJ arthritis and sialadenitis. The investigation of this germ in the oral cavity of 50 patients with gonorrhea, was positive in only one case, which did not present any buccal symptom. It was concluded from this study that an oral gonococcic infection is extremely rare, and that the transmissibility of this germ orally is not frequent eventhough possible in theory. However the infection can spread through the blood stream and can induce other pathology.

Deciduous tooth diagnostic and treatment plan put a specific problem down. Therapeutical choice depends, not only of the child general health, but also of the deciduous tooth physiological period, its pathology, and the young child cooperation. Complexity of deciduous tooth biological cycle gives necessary, for the pedodontist, accuracy and a good clinical sense.