The flashcards below were created by user karlap on freezingblue flashcards. Diseases of pulp and periapical tissues authorstream. Diagnosis of pulp and periradicular disease 2012 dentistry. This chapter aims to provide the reader with guidance on case selection and a stepbystep approach to contemporary techniques used in periradicular surgery. In such cases a positive response to testing with cold or electric could mislead the clinician into a diagnosis of a normal responsive. The lamina dura surrounding the root is intact and the periodontal ligament space is uniform. Slides 9 pulp and periradicular pathosis inflammation.
Introduction pulpal disease is only one of the several cause of disease of periredicular tissues because of the interrelationship between the pulp and periredicular tissues. Periapical periodontitis or apical periodontitis ap is an acute or chronic inflammatory lesion around the apex of a tooth root, most commonly caused by bacterial invasion of the pulp of the tooth. Pathways of pulpal infection dental caries is the most common pathway to the root canal system for microbes when the tooth is intact, enamel and dentine protect it against invasion of the pulp space as caries approaches the pulp, reparative dentine is laid down to avert exposure but this rarely can. Diagnosis is defined as the art of distinguishing one disease from another. It has been shown in a previous paper 1 that general dental practitioners consider that they have a good grasp of the concepts of diagnosis and management of periradicular disease. Periradicular repair after twovisit endodontic treatment. In fact, periradicular inflammation usually occurs before total necrosis of the pulp has taken place. Plastic type of filling material used in endodontics. Periradicular tissues are tissues that surround the root of a tooth what specialist has been trained to perform root canal therapy. Dr nawaf alhazaimeh causes of inflamation microorganisms and viruses.
Regeneration of the periradicular tissues endomontreal. Surgical versus nonsurgical endodontic retreatment for periradicular lesions there is no apparent advantage of using a surgical or nonsurgical approach for the retreatment of periapical lesions in terms of longterm outcome. Factors influencing the diagnosis and management of teeth. Mar 29, 2012 diseases of periradicular tissues by dr ramesh bharti 1. The nerves, blood vessels, and tissues that surrounds the root of a tooth. Handoperated files ktype file hedstrom file reamer file broaches 1st in. A dentist who specializes in the prevention, diagnosis, and treatment of diseases of the dental pulp and the periradicular tissues. Diseases of periradicular tissues by dr ramesh bharti slideshare. Pdf 30 periradicular tissue consists of root cementum,periodontal ligament and the alveolar bone. It is probably that the mesenhymal stem cells with characteristics of progenitor cells in periodontal ligament are involved in the repair and regeneration of apical zone after twostep endodontic treatment with apexcal and apexit plus filling. Pdf factors influencing the diagnosis and management of. The nerves,blood vessels, and tissues that surrounds the root of the tooth.
Hiroshi nakamura, dds, phd, abstract macrophage elastase and neutrophil elastase are involved in tissue destruction in periradicular lesions. The dynamic state of the tissue can produce confusing results during sensibility testing. Diseases of pulp and periapical tissues authorstream presentation. Mcqs in endodontics diseases of the pulp and periradicular tissues practice these mcqs for mds entrance preparation for aiims, comedk, aipg, pgi, pgimer, bhu, etc. The code is valid for the year 2020 for the submission of hipaacovered transactions.
However, clinicians must recognize that diseases of the pulp and periapical tissues are dynamic and progressive and as such, signs and symptoms will vary depending on the stage of the disease and the patient status. Periradicular definition of periradicular by medical. Having read this chapter the reader will be aware of contemporary techniques used in periradicular surgery. Though cases treatedsurgically display a slightly superior healing rate after 1 year follow up, such difference. Council on dental education and licensure, american dental association 1223e0200xendodontics the branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Classification of pulpal and periradicular pathoses ucla. Bisphosphonates are commonly used in the management of bone diseases, such as osteoporosis and pagets. If reroot treatment is not possible, will not correct the problem or patient factors prevent it, periradicular surgery is indicated. Nonsurgical and surgical endodontic techniques are unique tools to treat andor prevent root canal infections.
Etiologic role of root canal infection in apical periodontitis and its. It is a likely outcome of untreated dental caries tooth decay, and in such cases it can be considered a sequela in the natural history of tooth. Incidence of periradicular pathoses in endodontic treatment. The purpose of this study was to boneexamine these elastases. Of the enterococcus species, enterococcus faecalis is the most commonly isolated or detected species from oral infections, including marginal periodontitis 1, infected root canals 2, and periradicular abscesses 3.
One of the strongest factors contributing to the controversies often encountered in the endodontic field is the lack of understanding that the disease processes of the pulp and periradicular tissues generally have a microbiological etiology. Whether your gum disease is stopped, slowed, or gets worse depends a great deal on how well you care for your teeth. Diseases of periradicular tissues by dr ramesh bharti. The incidence of postoperative pain in retreatment cases with periradicular lesions has been demonstrated to be signi. The biology of dental pulp and periradicular tissues pocket.
For example, this particular study guide is devoted to clinical classification systems of pulpal and periradicular disease, pulpal diagnostic tests, incomplete crown fractures, transillumination, experimentally produced bony lesions, pulpal clinical correlations with histology, periradicular clinical correlations with histology, and. For example, a root canal may contain necrotic tissue but still have some neural tissue capable of conducting an impulse. Disorder of periapical tissues of tooth concept id. Diseases of periradicular tissues because of interrelationship between the pulp and periradicular tissues, pulpal inflammation causes inflammatory changes in the pdl even before the pulp becomes totally necrotic. Identify and define all diagnostic terms for periapicalperiradicular. To identify techniques commonly used in the management of periradicular disease by general dental practitioners and to ascertain views on continuing professional education in endodontics. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Classification symptomatic periradicular diseases asymptomatic apical periodontitis i vital tooth ii non vital tooth bacute alveolar abscess cphoenix abscess external root resorption persistent apical periodontitis 3.
Microorganisms present in dental caries are the main sources of irritation of the dental pulp and periradicular tissues. Review article endodontic management of a periapical cyst a. Surgical versus nonsurgical endodontic retreatment for. Classification of pulpal and periradicular pathoses 06sep07. Introduction periradicular surgery is the contemporary term used to describe those surgical interventions the aim of which is to manage disease associated with endodontic and extraradicular apical infection. Periradicular surgery should be very considered where previous endodontic treatment has failed, and possible reroot treatment is the preferred option. Diseases of periradicular tissues authorstream presentation. Their extravasation in the periradicular tissues or leakage into the oral cavity is found to be associated with severe inflammation, hematoma formation, chemical burns, neuronal damages, choking, endophthalmitis, ototoxicity and severe hypersensitivity reactions. Diagnosis of pulp and periradicular disease 2012 free download as powerpoint presentation. Disorder of periapical tissues of tooth 34282009 definition diseases of the periapical tissue surrounding the root of the tooth, which is distinguished from dental pulp diseases inside the tooth root.
The irritants such as bacteria, bacterial toxins, disinfecting medications, debris, disintegration products pushed into the periradicular tissues, or traumatic insult of the periapical tissues are. More recently, 2 animal studies have reported compromised periradicular tissue responses to bacterial challenge in animals with induced diabetes. Depending on the nature and quantity of irritants,as well as the duration of exposure of the periradicular tissues, a variety of tissue changes can occur. Eventually, the pulpal inflammation will spread through the apical foramen into the periradicular tissue. A case report of 2 years followup and surgical reentry abhijit ningappa gurav, abhijeet rajendra shete, and ritam naiktari. Reaction of periradicular tissues to root canal treatment.
Out of the 174 patients who were included in the study, symptomatic irreversible pulpitis 44. The primary function of the pulp is to form and support the dentin that surrounds it and forms the bulk of the tooth. Lecture on diagnosing pulpal and periradicular disease. Antimicrobial endodontic therapy is based on the premise that periradicular diseases are infectious disorders. Periradicular radiographic assessment in diabetic and. Periradicular tissues are tissues that surround the root of a. Periradicular lesions were induced by inoculating enterococcus faecalis in the root canals. Accepted generally that rests of malassez included within a developing periapical granuloma proliferates to form the lining of radicular cyst. After odontogenic infections trauma to jaws presence of anug chronic systemic diseases immunocompromised states tobacco and alcohol abuse.
Describe the mechanisms and explain the consequences of the spread of pulpal inflammation into periradicular tissues and the subsequent inflammatory and immunologic responses. Introduction endodontics is the branch of dentistry concerned with the aetiology, prevention, diagnosis and treatment of diseases and injuries that affect the dental pulp, tooth root and periradicular tissues. Methodology the department of oral diagnosis and radiology has a diagnostic clinic. Regarding radiographic assessment of pulpal and periradicular tissue, all criteria. Identify and define all diagnostic terms for periapical. Classify pulpal diseases and their clinical and histologic features. Endodontics encompasses the study practice of the basic and clinical sciences of normal dental pulp, the etiology, diagnosis, prevention, and treatment of diseases and injuries of the dental pulp along with associated periradicular conditions. Diseases of periradicular tissues free download as powerpoint presentation. May 09, 2014 one of the strongest factors contributing to the controversies often encountered in the endodontic field is the lack of understanding that the disease processes of the pulp and periradicular tissues generally have a microbiological etiology.
What type of file is best suited to shape and contour the pulpal canal. Most of the diseases of dental pulp and periradicular tissues are associated with microorganisms 3. The vast majority of diseases of dental pulp and periradicular tissues are associated with microorganisms. Figure 431 classification of endodonticperiodontic lesions. Terms in this set 25 what are periradicular tissues.
Study 20 terms endontics chapter 54 flashcards quizlet. Periradicular definition of periradicular by medical dictionary. The clinical diagnostic conditions of pulpal and periradicular diseases are presented in fig. Treatment of a large periradicular defect using guided tissue regeneration. Acute periapical periradicular periodontitis or chronic periapical periradicular periodontitis with. The purpose of the present study was to assess potential links between diabetes and compromised tissue response of the periradicular region to infection.
This molecular study was undertaken to investigate the prevalence of e. If you continue browsing the site, you agree to the use of cookies on this website. What type of file is best suited for canal enlargement. Mandibular molars can also have accessory canals in lateral orientation or in the furcation area. After the microbial invasion of these tissues, the host. Diagnosis is the recognition of the presence of a disease. The possible systemic effects stemming from root canal procedures are also discussed in the light of current knowledge. Therefore, a major goal of both preventive and restorative dentistry is to prevent penetration of microorganisms into the coronal pulpal space and root canal system. Pdf in the fall of 2003, a new glossary of endodontic terms 1 was published by the american association of endodontists. Incidence of periradicular pathoses in endodontic treatment failures wade k. A, primary pulpal infection can lead to chronic periradicular periodontitis by which a periapical radiolucency parl can develop and migrate cervically. Enterococcus faecalis is a nonsporeforming, fermentative, facultatively anaerobic, grampositive coccus. Because of this complexity, tissue responses and the consequences following dental trauma have been confusing and puzzling for many clinicians.
Physical irritation of periradicular tissues can also occur during root canal therapy if the canals are instrumented or filled beyond their anatomic. Periapical dental radiograph showing chronic periapical periodontitis on the root of the left maxillary second premolar. Periapical tissue definition of periapical tissue by. Responses of the pulp, periradicular and soft tissues. Bacteria colonizing the root canal damage periradicular tissues. The response in the periradicular area may be symptomatic acute or asymptomatic chronic. Note large restoration present in the tooth, which will have undergone pulpal necrosis at some point before the development of this lesion. Introduction as a consequence of pathologic changes in the dental pulp,may or may not initiate formation and perpetuation of periradicular lesions. Association of enterococcus faecalis with different forms.
The biology of dental pulp and periradicular tissues. Pulpal and periradicular diseases develop when microorganisms andor their byproducts contaminate these tissues. These accessory canals can allow migration of the primary pulpal infection and. The expression of macrophage and neutrophil elastases in rat periradicular lesions. Pulpal and periapical diagnostic terminology and treatment. Endodontics has evolved tremendously in the past decade and its applications have immensely improved. Describe the structure and function of the periradicular tissues.
Association of enterococcus faecalis with different forms of. Diseases of periradicular tissues by dr ramesh bharti 1. Data from culture studies have revealed that enterococcus faecalis is occasionally isolated from primary endodontic infections but frequently recovered from treatment failures. Diseases of periradicular tissues epithelium dentistry scribd. Endodontic infections occur and progress when the root canal system gets exposed to the oral. The expression of macrophage and neutrophil elastases in.
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