From clinical observation, the relationships between vital pulp and deep periodontal pockets are discussed. The bone healing of infra periodontal pocket is not performed after periodontal treatment, but after pulpectomy.
From clinical observation, the relationships between vital pulp and deep periodontal pockets are discussed. The bone healing of infra periodontal pocket is not performed after periodontal treatment, but after pulpectomy.
The aim of this study was to evaluate the apical seal obtained using root canal filling techniques based on low and high temperature thermoplasticized gutta-percha, comparing them with the lateral condensation technique. The roots of thirty permanent upper canines and incisors were used, they were instrumented and obturated using each of the above techniques. The apical leakage was measured using a radioactive isotope and an external detection technique. No significant difference was found in the apical seal obtained by the three techniques.
The present study was not about the interest of the association of ultrasonic instrumentation with irrigation in the root canal therapy, but about the wear of the K files themselves. The results showed with the assistance of the sono-synergistic system, files are almost as clean as the sterile are. This is important for the prevention of possible contamination.
Calcium hydroxide is one of the most often medication used for temporary treatment in endodontics. Different forms of preparation are available. The aim of this study is to evaluate in vitro the elimination of the pharmaceutical and the commercial forms of presentation. The aspect of the dentinal walls were analysed using SEM and X-ray microanalysis. The results show that Ca(OH)2 removal is difficult but there is no significant difference of elimination between the two forms.
The scanning electron microscope has multiple applications in the research of endodontics, but there are not standard methods for the evaluation of the results. The use of the computerized processing and analysing systems for the images reduces the sources of error due to the subjectivity of the operator. This first part, after the introduction of the principles of processing and analysis, puts in view two methods of computerized analysis used in the study of the films of dentinal walls in the scanning electron microscope.
During life, the modifications of the dental pulp are important mostly in the root portion. This area, more than the coronal part of the tooth is submitted to involution and histologic dedifferentiation. Fibrosis and calcification occur leading to severe difficulty in performing endodontic treatment.
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