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Although the efficacy and safety of the Sargenti technique have remained controversial for more than a decade, the technique still is widely used by many dentists throughout the world. The following report describes a retrospective analysis of 367 cases that looked at the contribution of instrumentation technique and fill adequacy to paste dissolution.
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It is the skill and knowledge of the clinician using the technique or material that determines success. This article provides an overview of some current trends in endodontic instruments and materials.
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The purpose of the present study was to carry out a histologic study of the periapical changes of the maxillary first molar of rats submitted to endodontic treatment under different occlusal conditions. The experiment was carried out under conditions analogous to those used in clinical practice. Pulpotomy, pulpectomy and chemomechanical preparation of the mesial root canal were carried out according to previously established techniques and the mesial root canal was filled with cement and gutta-percha. A glass ionomer cement was used as restorative material under conditions of subocclusion, normal occlusion and excessive occlusal forces. No inflammatory reaction of periapical tissue was observed under the three conditions used, and active closing of the root canal was observed 15 days after the procedure, with the formation of cementum replacing the pulpar remnant.
Controversies have been common in the clinical treatment of endodontically involved teeth for many years. This series of articles discusses the advantages and disadvantages of four of the major disagreements in the field at this time. They are: (1) What is the significance of lateral canals and how are they best filled? (2) Should treatment be completed in a single appointment or should multiple appointments be involved? (3) Can the canal(s) be filled after the tooth is left open or should such treatment be avoided? (4) What is the best way to calculate the working length? This article discusses the centerpiece controversy-lateral canals. Subsequent articles will consider the other three subjects.
Patients are increasingly wishing to undergo conventional endodontic treatment rather than to risk the loss of a tooth. Endodontic treatment in teeth that have been previously restored with extensive intracoronal or extracoronal restorations are often difficult to treat. The orientation of the root canals to the crown of the tooth may be lost, and this may often be compounded by the deposition of reparative dentin in the pulp chamber. The operating microscope allows better visualization of the working field, ensuring that the anatomy of the tooth is more readily inspected. This greatly enhances the clinician's ability to locate extra root canals and therefore increase the likelihood of a successful outcome. It should not be forgotten that the operating microscope also has a place in other fields of dentistry, especially restorative dentistry, and is an asset to both the specialist and the generalist.
Clinicians frequently encounter endodontically treated teeth that are failing. The vast majority of these cases can be predictably retreated nonsurgically. Integration of specific technology, coupled with breakthrough techniques, are described and powerfully demonstrated. This article is designed for the dental team whose vision is to preserve strategic teeth and create endodontic excellence for its patients.
The best method for retreating a tooth that has already undergone root treatment will depend on the root filling technique and material used; a combination of retreatment techniques may be required. The correct method, combined with the required equipment, skill and experience, are necessary to produce a high standard of retreatment and a successful result. In part 1 of this article, the indications and case selection for root canal retreatment were discussed; this article will now discuss the methods of retreatment available.
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According to Lemon (1992) the internal matrix concept of repairing perforations has distinct advantages over the surgical method. The procedure is more time-efficient when compared with other methods. The technique requires direct access and visualization of the perforation site in order to place the repair material. It is therefore restricted to perforations in the furcation area, and the straight portions of the root canal.
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Periapical disorders in horses can be treated by resection of the apex. The indications, contraindications, diagnosis, treatment and complications of the intervention are discussed. Four case reports of horses in which apicoectomy with retrograde endodontic treatment was performed are reviewed.
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It could be said that cleaning and shaping is a game and, as such, can be played at various skill levels producing a range of endodontic results. Breakthrough cleaning and shaping strategies elevate the level of play by creating clean preparations that have been designed, sculpted, and shaped to flow and grace within. Excellence in canal preparations is an opening for packing the root canal system in three dimensions and increases the possibility of generating successful outcomes. Visualizing and executing great play moves the clinician toward mastery and winning the inner game of endodontics.
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