Practica odontologica最新文献

Within the classification of malocclusions, those belonging to class III represent a higher challenge to orthodontics, due to the difficulty and duration of treatment. This article makes reference to the clinical and radiological features of patients manifesting this type of malocclusion. Finally, the case history of a patient with this ailment, treated by Mollin's light arches technique, is displayed.

Blink reflex time records were obtained from patients with temporomandibular joint disfunction (TMJD), before and after treatment with occlusal splint, since blink reflex time helps to study the trigeminal-facial functional relationship. Results suggest that the impaired sensory-motor function in the trigeminal-facial complex of TMJD patients, may return to normal latency values following such treatment.

This paper analyzes the importance of clinical data gathered in writing the case history of a pediatric patient in the dentist's office, inasmuch as this information determines diagnosis and appropriate treatment. The authors suggest that in eliciting this information, no technical terms be used, so that the person providing the pertinent data may do so in a fully comprehensive manner.

The case history of a six-year-old girl who underwent endodontic treatment by a non recommended technique. It was decided to perform integral treatment anew, this time with techniques and materials adequate for the restoration and renewal of temporary dentition.

The prevention of dental caries is not only limited to the use of fluorides or sealants which, in combination with health education programmes and an appropriate oral hygiene, decrease the prevalence of the disease. The partial substitution of sucrose with nonfermentable sweeteners in the diet have shown to have a caries-inhibitory effect. A literature review regarding sugar substitutes is presented. The objective is to identify and describe the different kinds of sweeteners, with special emphasis in sugar alcohols like xylitol and sorbitol, which have shown to have such caries inhibitory-effect.

The purpose of this paper was to observe changes occurred on the surface of some amalgams commonly found in the national market in order to evaluate tarnishing, darkening and corrosion on polished and non-polished surfaces. The method used was alternate immersion in bidestilled water, and 50% acetic acid, 14.5% lactic acid. A control, for comparative purposes, was not submitted to immersion but left in normal environmental conditions.

The present work is a review of the literature covering new concepts on Dental Caries and its etiology.

Medical emergencies in the dentist's office are a primary concern for dental surgeons. Since each individual therapist is personally responsible for the management of those eventualities, they must be properly trained to handle them. Prevention is still the most effective method for avoiding them, with clinical examination as the prime basis for their management. Some current factors that increase the possibility of office emergencies include: a raise in life expectancy rates, thus increasing the number of patients with chronic diseases; multiple and complex therapeutic regimes; patients under dialysis, immunosuppression, transplants, etc. Apart from proper training of the dental surgeon in managing medical emergencies, he must have adequate equipment for treating such events. This article aims to offer dentists a practical guide to emergency equipment, which must always be at his immediate disposal, as well as some practical guidelines for the use of drugs and some recommendations regarding the organization of such equipment.

Both the literature and clinical experience have verified that necrotic root canals, with or without periapical lesion, display a confusing response to the various tests for pulp vitality. As suggested by clinical and histopathological research studies, these lesions are due to a defense reaction from the periapical connective tissue, in response to bacterial infections which alter host tissues. Diminishing the frequency of postoperative pain in endodontic treatment is currently a leading concern, and this study aimed to evaluate the different variables involved in root canal therapy, so as to recommend the most suitable approach, without losing sight of the main goal at hand: a successful endodontic treatment. The present study was performed on 200 necrotic root canals, using frontal teeth, upper and lower premolars and molars, both with straight or curved canals. Avoiding damage to the periapical regions, the study concluded, is of prime importance in lowering the frequency of postoperatory pain. Also, the presence of periapical pain is vitally important in the appearance of postoperatory pain, and it is in such cases that cleansing must be adopted as a routine clinical procedure.