The goal of endodontic treatment is to promote the healing by prevention of apical periodontitis (AP) and to re-establish healthy periapical tissue 1. In spite of advances in endodontics, there are numerous factors contribute to endodontic treatment failure which includes residual necrotic pulp tissue, root canal over fillings, presence of periradicular lesions and periodontal disease. When root canal therapy fails, treatment options include orthograde re-treatment, periradicular surgery or extraction. Nonsurgical endodontic retreatment procedures are performed as the first choice to eliminate or reduce the microbial infection when the initial root canal therapy fails. The main goal of nonsurgical endodontic retreatment is to completely remove …show more content…
These apically extruded materials are responsible for postoperative inflammation and flare-up or even failure of apical healing. According to Huang et al most appropriate retreatment technique should be selected to remove as much of the pre-existing filling material as completely as possible while minimizing the amount of apical extrusion4. Apart from shaping and finishing files, a new generation of nickel-titanium rotary instruments are also available. It contains a retreatment system, which is designed for root filling removal in case of retreatment4. Recently, the R-Endo (Micro-Mega, Besancon, France), and S5 retreatment files (Sendoline, Sweden) a new instrumentation system specifically dedicated to retreatment procedures has been developed. The files have a triangular cross-section with three equally spaced cutting edges and no radial land; the tip of the files is claimed to be inactive5. Furthermore, no studies have quantitatively assessed the amount of debris extruded apically in the retreatment procedure along with time for removal of filling material performed using the R-Endo and S5 retreatment systems. Therefore, the purpose of this study was to quantitatively evaluate the amount of debris extruded apically during the removal of root canal filling and time taken for removal of root canal filling material using the Pro-taper, R-Endo, S5 retreatment systems and hand
To be sure right size of gutta percha is choose in order to fill whole length of root canal except 2mm at the apex
Root canal therapy. Infection? Pain? We can eradicate decay and restore comfort with root canal therapy. If you are experiencing pain when chewing, you may need a root canal.
The main goal of endodontic treatment is to prevent or heal apical periodontitis. The cleaning and shaping procedures are adversely affected by the highly variable root canal anatomy. The presence of additional canals needs to be detected in to avoid incomplete instrumentation and preservation of bacteria and their toxins, which can compromise the outcome of the root canal treatment. Therefore, the knowledge of the internal anatomy of teeth is a prerequisite for successful endodontic therapy(1).
When a tooth is badly decayed or infected a root canal treatment is used to repair and save the tooth.
Root canal treatment usually fails when treatment falls short of usual standards. The causes of failure of initial endodontic therapy include intraradicular and extraradicular causes. Many of the teeth undergoing root canal treatment do not respond to initial therapy due to intraradicular causes i.e. procedural errors that prevent the control and prevention of intracanal endodontic infection. The procedural errors include poor access cavity design, untreated canals (both major and accessory), poor cleaning and obturation, complication of instrumentation (ledges, perforations or separated instruments), overextension of root filling materials and coronal leakage.5 Extraradicular causes of endodontic failures include periapical actinomycosis,
Today was a great day since I took and passed my competency on the Orban and EXD 11/12 explorers. Also, working with Danielle as my patient, helped me to have the experience of how to handle a patient with diabetes. At the same time, it helped me to realize that for patient with healthy gums I won’t be able to use the instrument to its full potential. In her case I could not get the Gracey 11/12 and 13/14 and 1/2 all the way to the interproximal space. I was deplaquing, and had to stay supragingival if the tissue was too tight. My challenges with these instruments, especially the Gracey 13/14 was adapting the instrument parallel to the tooth, so that the cutting edge was at 70 degrees angulation, and finding the right fulcrum for the maxillary
A root canal retreatment is very similar to a root canal treatment. The area around the affected tooth will be numbed and dental dam will be placed in your mouth in order to stabilize the surgery location.
Then, the dentist drills a hole in your tooth so the canal can be reached. Once that's done, the dentist uses small files to scrape the pulp tissue from the sides of the canal. The pulp and nerve are pulled out and the canal is rinsed. The dentist may go ahead and seal the canal on the same visit, or a temporary filling might be placed until the tooth is sealed on the next visit. Your dentist may decide to insert medication into the canal to fight any remains of the infection before the tooth is sealed. Once the canal is sealed, restoration work on your tooth can begin. You may need a filling or a crown to cover the cavity that lead to the infection. The root canal procedure only addresses the pulp infection. You'll need a separate treatment to repair the enamel of your
Consequently, I was involved in the mechanical testing of bioceramic endodontic materials with regards to their physical properties and hydration behavior. Also, I am participating in an ongoing Micro-CT study to evaluate the quality of root filling using different filling techniques and sealers.
Sentence about endodontics For filling root canals, two main materials are used which are core materials and sealers. Sealers are placed between the dentinal canal walls and the core material. As for core materials, they fill the major part of the prepared canal. According to Ideal properties of obturating materials suggested by Grossman (citation - table), there is no material that satisfy all these criteria. However, one material is universally accepted as a primary obturating material, which is gutta percha. It is considered a turning point in endodontics treatment in the mid-19th century when Sir Jose d Almeida introduced gutta percha in 1843 and it is derived from two words "GETATH" meaning gum and "PERTJA" the name of the Brazilian trees where gutta percha extracted. After two decades in 1867, Bowman used gutta percha as root filling material. Since it has unique properties such as plasticity (become plastic when heated) and compatibility (adaptation to canal walls and root canal system), it is the commonly used filling material. Last sentence
Root canals are designed to eliminate your discomfort and allow you to return to your normal life with a healthy, strong, pain-free smile. We use rotary technology to gently access the tooth to remove the infected dental pulp. To learn more about this process, please check out our service page on root canals.
When a procedure as basic as scaling and root planning and the sight of reduced post-operative inflammation – seeing the gingiva turn to a benign pink from red gives you a sense of fulfillment and satisfaction that is incomparable, you know that being a Periodontist is everything you have ever wanted. Holding a scalpel, incising the gingival and periodontal tissues and raising a flap almost perfectly for the very first time, is perhaps one of the most exhilarating experiences I have ever had and, at the risk of sounding too dramatic, the clockwise and anti-clockwise turning of the wrist during suturing is nothing short of sheer poetry in motion to me.
In 1945, Kesling1 introduced the tooth-positioning appliance as a method of refining the final stage of orthodontic finishing after debanding. A positioner was a one-piece pliable rubber appliance fabricated on the idealized wax set-ups for patients whose basic treatment was complete (Phan & Ling, 2007). In 1999, Align Technology Inc addressed the demand for an esthetic alternative to braces by developing an “invisible” method of orthodontic treatment that uses a series of computer-generated, clear, removable aligners to move the dentition. Since then, Invisalign has been used to treat over 300,000 orthodontic patients with a variety of malocclusions. The primary benefit of the Invisalign system is the superior esthetics during treatment compared to metal braces. Other advantages of the system include the ability to remove aligners to eat, brush and floss, and the superior comfort and ease of use (Kuncio, Maganzini, Shelton, & Freeman, 2007)
The vast majority of the dentists agreed (68 per cent totally, and 18 per cent partially) on that they have to give a retainer to the patient, whatever the patient's initial or pre-treatment situation is. More than two thirds of the dentists (76 per cent) think that the pre-treatment situation can be decisive for the type of retention that should be used. Sixty-four per cent (21 per cent totally agreed, and 43 per cent partially agreed) of the clinicians suggested that the orthodontic treatment end result can be decisive in selecting the appropriate type of retainer. Sixty-four per cent of the dentists agreed (22.6 per cent totally, and 46 per cent partially) on that the pre-treatment situation can alter the duration of the retention phase.
Some of the services they provide include apicoectomies (the removal of infected tissue from the apex of the tooth), root canals, endodontic re-treatment after a failed root canal, and treatment for pulp damage resulting from traumatic dental injury. An orthodontist's purpose is to prevent, diagnose, and treat dental and facial