scholarly journals Fracture of endodontic instruments - Part 1: Literature review on factors that influence instrument breakage

2020 ◽  
Vol 75 (10) ◽  
pp. 553-563
Author(s):  
Maheshan Pillay ◽  
Martin Vorster ◽  
Peet J Van der Vyver
Keyword(s):  
Adverse Effect ◽  
Literature Review ◽  
Root Canal ◽  
Nickel Titanium ◽  
Endodontic Treatment ◽  
Risk Of Fracture ◽  
Periapical Lesions ◽  
Root Canals ◽  
Infected Root ◽  
Infected Root Canal

Instrument fracture is a serious complication during endodontic treatment of teeth, having an adverse effect on the outcome of the nickel titanium (NiTi) treatment, especially if the fracture prevents apical access to the infected root canal. Despite the advent of NiTi files, the risk of fracture during the endodontic preparation of root canals, especially in severely curved canals, remains a serious concern. The fracture of NiTi files during preparation may result in a compromised prognosis for the tooth. In the presence of periapical lesions, instrument fracture may reduce the chances of successful healing.

scholarly journals Bacterial aggregation in infected root canal

2005 ◽  
Vol 5 (4) ◽  
pp. 35-39 ◽  
Author(s):  
Amela Lačević ◽  
Nurija Bilalović ◽  
Aida Kapić
Keyword(s):  
Root Canal ◽  
Endodontic Treatment ◽  
Periapical Lesion ◽  
Microscope Examination ◽  
Root Canals ◽  
Bacterial Aggregation ◽  
Infected Root ◽  
Staining Methods ◽  
Infected Root Canal ◽  
Microbial Morphotypes

The aim of this study was to investigate different microbial morphotypes in the root canal infection associated with chronic diffuse periapical lesion. In forty cases of asymptomatic teeth with radiographically diagnosed diffuse periapical lesion we took specimens of infected tissue from the root canals at the beginning of endodontic treatment. Fixation and four different staining methods of the specimens were obtained to provide microscope examination. All examined root canal specimens were heavily infected by bacteria. The most commonly identified were cocci 92 %, small mostly G+ diplococci and large G+cocci in clusters and grapelike groups, bacilli found in 67%, coccobacilli 37%, fungi 17%, and spirochetes in 5%.

scholarly journals Penatalaksanaan non-bedah kasus previously initiated therapy gigi molar pertama maksila dengan lesi periapikal dan konfigurasi dua saluran akar mesiobukal Non-surgical management of previously initiated therapy of the maxillary first molar with periapical lesions and two mesiobuccal canals configuration

2021 ◽  
Vol 33 (3) ◽  
pp. 262
Author(s):  
Diatri Nariratih ◽  
Hendra Dian Adhita Dharsono
Keyword(s):  
Case Report ◽  
Surgical Management ◽  
Root Canal ◽  
Anatomical Variations ◽  
Nickel Titanium ◽  
Endodontic Treatment ◽  
Radiographic Examination ◽  
Periapical Lesions ◽  
Root Canals

ABSTRAKPendahuluan: Penatalaksanaan kasus penyakit pulpa yang disertai dengan lesi periapikal dapat dilakukan dengan perawatan saluran akar tanpa intervensi bedah. Preparasi biomekanis pada perawatan endodontik non-bedah dapat mengeliminasi bakteri dari saluran akar dan mencegah terjadinya infeksi berulang setelah dilakukannya obturasi. Kompleksitas anatomi menyebabkan keterbatasan preparasi biomekanis saluran akar, sehingga perawatan dapat mengalami kegagalan. Variasi anatomi saluran akar pada gigi molar pertama rahang atas umumnya terdapat pada bagian palatal akar mesiobukal yang disebut sebagai saluran akar mesiobukal kedua dengan insidensi 94%. Saluran akar mesiobukal kedua berukuran lebih sempit dan dangkal dibandingkan saluran akar mesiobukal pertama, sehingga dibutuhkan beberapa metode untuk menentukan lokasi orifis tersebut. Tujuan laporan kasus ini adalah membahas mengenai penatalaksanaan non-bedah gigi pasca perawatan endodontik parsial yang disertai dengan lesi periapikal. Laporan kasus: Pasien perempuan berusia 28 tahun datang dengan keluhan gigi belakang kiri atas sakit berdenyut sejak 1 bulan, gigi tersebut pernah dirawat saluran akarnya beberapa tahun sebelumnya. Pemeriksaan klinis menunjukkan terdapat tambalan permanen pada gigi 26. Pemeriksaan radiografis menunjukkan adanya gambaran radiopak pada email mesio-oklusal hingga mencapai dasar kamar pulpa, pelebaran ligamen periodontal, terputusnya lamina dura, serta lesi periapikal pada akar mesial dan palatal. Preparasi akses dilakukan pada gigi 26, dilanjutkan dengan penentuan lokasi orifis mesiobukal kedua. Empat saluran akar dipreparasi menggunakan instrumen rotary nickel titanium dengan teknik crown down dan dilakukan obturasi teknik kondensasi lateral. Restorasi definitif berupa mahkota penuh porselen. Simpulan: Lesi periapikal sembuh setelah dilakukan preparasi pada saluran akar mesiobukal kedua sehingga pengetahuan mengenai anatomi dan variasi internal saluran akar gigi sangat penting dalam keberhasilan perawatan endodontik non-bedah.Kata kunci: Perawatan endodontik non-bedah; previously initiated therapy; lesi periapical; mesiobukal kedua  ABSTRACTIntroduction: The management of pulp disease cases accompanied by periapical lesions can be done by root canal treatment without surgical intervention. Biomechanical preparations for non-surgical endodontic treatment can eliminate bacteria from the root canal and prevent re-infection after obturation. However, the complexity of the anatomy limits the biomechanical preparation of the root canal so that treatment can fail. Anatomical variations of the root canal in the maxillary first molars are generally found in the palatal part of the mesiobuccal root, which is the second mesiobuccal root canal with an incidence of 94%. The second mesiobuccal root canal is narrower and shallower than the first mesiobuccal root canal, so several methods are needed to determine the location of the orifice. The purpose of this case report was to discuss the non-surgical management of teeth after partial endodontic treatment accompanied by periapical lesions. Case report: A 28-year-old female patient complained of throbbing pain in the left upper back tooth for one month. The tooth had had its root canal treated several years before. Clinical examination revealed permanent fillings on tooth 26. Radiographic examination showed the radiopaque appearance of mesio-occlusal enamel to the floor of the pulp chamber, widening of the periodontal ligament, rupture of the lamina dura, and periapical lesions of the mesial and palatal roots. Access preparation was performed on tooth 26, followed by the determination of the location of the second mesiobuccal orifice. Four root canals were prepared using a rotary nickel titanium instrument with a crown down technique and obturation with lateral condensation technique. The definitive restoration is a full porcelain crown. Conclusions: Periapical lesions healed after preparation of the second mesiobuccal root canal. This result proves that knowledge of the anatomy and internal variations of the root canal is fundamental in the success of non-surgical endodontic treatment.Keywords: Non-surgical endodontic treatment; previously initiated therapy; periapical lesions; second mesiobuccal canal

Pemilihan medikamen intrakanal antar kunjungan yang rasional

2010 ◽  
Vol 9 (1) ◽  
pp. 63
Author(s):  
Indrya Kirana Mattulada
Keyword(s):  
Root Canal ◽  
Endodontic Treatment ◽  
Infected Root ◽  
Infected Root Canal

Bacteria and their products play a fundamental role in the initiation, propagation andpersistence of pulpal and periradicular diseases. Consequently one of the major goalsof endodontic treament is to eliminate all bacteria from the root canal space.Elimination of microorganism from infected root canal is a complicated task.Numerous measures have been described to reduce the numbers of root canalmicroorganism, including the use of various instrumentation techniques, irrigationregimens, and intracanal medication. In endodontic treatment, there are severalmedicament used traditionally. They are phenolic, aldehyde, halogen, calciumhydroxide, and antibiotic. The aim of this paper is to discuss about indication,contraindication and effect of each medicament.

scholarly journals Prevalence, virulence and antifungal activity of C. albicans isolated from infected root canals

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Sheela B. Abraham ◽  
Farah al Marzooq ◽  
Wan Harun Himratul-Aznita ◽  
Hany Mohamed Aly Ahmed ◽  
Lakshman Perera Samaranayake
Keyword(s):  
Root Canal ◽  
Antifungal Susceptibility ◽  
Production Capacity ◽  
Human Teeth ◽  
Root Canals ◽  
Infected Root ◽  
Dental Hospital ◽  
Canal Systems ◽  
Infected Root Canal ◽  
Genotype A

Abstract Background There is limited data on the prevalence of Candida species in infected root canal systems of human teeth. We attempted to investigate the prevalence, genotype, virulence and the antifungal susceptibility of Candida albicans isolated from infected root canals of patients with primary and post-treatment infections in a UAE population. Methods Microbiological samples from 71 subjects with infected root canals were aseptically collected, and cultured on Sabouraud dextrose agar, and C. albicans was identified using multiplex polymerase chain reaction, and the isolates were further subtyped using ABC genotyping system. Their relative virulence was compared using further four archival samples of endodontic origin from another geographical region, and four more salivary isolates, as controls. The virulence attributes compared were biofilm formation, and production of phospholipase and haemolysin, and the susceptibility to nystatin, amphotericin B, ketoconazole, and fluoconazole was also tested. Results 4 out of 71 samples (5.6%) yielded Candida species. On analysis of variance among the groups, the intracanal isolates, mainly Genotype A, possessed a high degree of phospholipase and haemolysin activity (p < 0.05). The UAE and Finland isolates were stronger biofilm formers and had superior phospholipase production capacity compared with the salivary isolates. All isolates were sensitive to the antifungal chemicals used. The salivary isolates were more sensitive to fluoconazole compared to other groups (p < 0.05). Conclusion The prevalence of C. albicans in infected root canals of patients attending a dental hospital in UAE is low. The strains isolated were good biofilm formers, possessed strong phospholipase and haemolysin activity and were mostly of the genotype A. The fact that the root canal isolates possessed significant hydrolase activity, imply that they are equipped with virulence attributes necessary for survival within a harsh intracanal ecosystem.

scholarly journals Antimicrobial and Antibiofilm Properties of Bioceramic Materials in Endodontics

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7594
Author(s):  
Zhejun Wang ◽  
Ya Shen ◽  
Markus Haapasalo
Keyword(s):  
Root Canal ◽  
Antimicrobial Agents ◽  
Chemical Properties ◽  
Canal System ◽  
Root Canals ◽  
Physico Chemical ◽  
Infected Root ◽  
Root Canal System ◽  
Dental Applications ◽  
Infected Root Canal

Microbes are prevalent in the root canals of necrotic teeth, and they are the cause of primary and post-treatment apical periodontitis. Bacteria can dwell within the infected root canal system as surface-adherent biofilm structures, which exhibit high resistance to antimicrobial agents. Bioceramic materials, with their biocompatible nature and excellent physico-chemical properties, have been widely used in dental applications, including endodontics. This review focuses on the application of bioceramic technology in endodontic disinfection and the antibiofilm effects of endodontic bioceramic materials. Different bioceramic materials have shown different levels of antibiofilm effects. New supplements have emerged to potentially enhance the antibiofilm properties of bioceramics aiming to achieve the goal of microbial elimination in the root canal system.

scholarly journals O Glide Path na Endodontia Contemporânea: Revisão de Literatura / The Glide Path in Contemporary Endodontics: Literature Review

2021 ◽  
Vol 15 (58) ◽  
pp. 324-333
Author(s):  
Danielle Fernandes Oliveira Martins ◽  
Maria Clara Santos De Farias ◽  
Luiz Roberto Mendes Da Silva
Keyword(s):  
Literature Review ◽  
Root Canal ◽  
Endodontic Treatment ◽  
Effective Procedure ◽  
Root Canals ◽  
Favorable Environment ◽  
Glide Path ◽  
Initial Preparation ◽  
The Creation

Por meio deste estudo é possível analisar que a instrumentação dos canais radiculares após o uso do Glide Path traz inúmeros benefícios, incluindo o melhor deslizamento dos instrumentos, redução do número de fraturas e menor intercorrências intrarradiculares. Além disso, essa preparação inicial do canal radicular com o uso do Glide Path realiza uma desobstrução, criando um “caminho” livre para o melhor deslize dos instrumentos no canal radicular. Os instrumentos possuem características e particularidades que levam ao mesmo objetivo de preparar o conduto para uma segura instrumentação, destaca-se aqui o WaveOne Gold, R-Pilot e o PathFile. É uma técnica que vem sendo difundida e utilizada na endodontia contemporânea com o intuito de realizar um procedimento eficaz.---Abstract: Analyze the use of instruments to prepare the Glide Path and understand how this endodontic instrument brought advantages in instrumentation techniques. This is a literature review with selected articles from the last 10 years, in order to achieve the objectives proposed by the theme. Articles in English and Portuguese were used, with all information pertinent to the topic extracted. Through this study, it is possible to analyze that the instrumentation of root canals after the use of the Glide Path brings numerous benefits, including better sliding of the instruments, reduction in the number of fractures and less intra-radicular complications. In addition, this initial preparation of the root canal using the Glide Path performs clearance, creating a clear “path” for the best glide of the instruments in the root canal. The instruments have characteristics and particularities that lead to the same objective of preparing the conduit for safe instrumentation, the Wave One Gold, R-Pilot and PathFile stand out here. It is a technique that has been disseminated and used in contemporary endodontics with the aim of performing an effective procedure. Through this bibliographical study, it is possible to consider that the use of the Glide Path favors the preparation of the root canal and proves to be effective and safe when used before instrumentation, thus, with the creation of a more favorable environment for instrumentation, the chances of success in endodontic treatment.

Cellular immuno-competence of infected root canal contents in pathogenesis of periapical lesions

1997 ◽  
Vol 23 (4) ◽  
pp. 213-216 ◽  
Author(s):  
Junji Ninomiya ◽  
Keiji Nakanishi ◽  
Toshinobu Takemoto ◽  
Tomie Higashi ◽  
Tetsuji Ogawa ◽  
...  
Keyword(s):  
Root Canal ◽  
Periapical Lesions ◽  
Infected Root ◽  
Infected Root Canal

scholarly journals Endodontic Biofilm - An Enigma to the dentist : A review article

2020 ◽  
Vol 3 (06) ◽  
Author(s):  
Aashima Puri ◽  
Jyoti Nagpal ◽  
Mayank Mall ◽  
Pinki Narwal ◽  
Deepti Garg ◽  
...  
Keyword(s):  
Root Canal ◽  
Extracellular Polymeric Substances ◽  
Antimicrobial Agents ◽  
Immunological Methods ◽  
Coagulase Negative Staphylococcus ◽  
Root Canals ◽  
Infected Root ◽  
Actinomyces Species ◽  
Canal Systems ◽  
Infected Root Canal

Biofilm can be defined as a sessile multi-cellular microbial community characterized by cells that are firmly attached to a surface and enmeshed in a self produced matrix of extracellular polymeric substances.1,2 These are very prevalent in the apical root canals of teeth with primary and post-treatment apical periodontitis.3 It can be categorised as intracanal biofilms, extra radicular biofilms, periapical biofilms and biomaterial centered infections.4 The infected root canal harbors a polymicrobial population of aerobic, anaerobic, Gram-positive, and Gram-negative bacteria in a biofilm mode of growth. Bacterias involved are E. faecalis, Coagulase–negative Staphylococcus, S. aureus, Streptococci, P.aeruginosa, fungi, F. nucleatum, P. gingivalis, T. forsythensis, Actinomyces species and P. Propionicum. These are commonly isolated by culture, microscopy, immunological methods and molecular biology methods.3 The microbial communities grown in biofilm are remarkably difficult to eradicate with antimicrobial agents. Therefore, different antimicrobials ranging from antimicrobial irrigants to advanced antimicrobial methods such as lasers, photoactivated disinfection, and nanoparticles are employed in the management of infected root canal systems.4

scholarly journals Endodontic Instrument’s Single use Policy. A Literature Review

2020 ◽  
Vol 1 (1) ◽  
pp. 1-4
Keyword(s):  
Stainless Steel ◽  
Root Canal ◽  
Bulk Material ◽  
Nickel Titanium ◽  
Pulp Tissue ◽  
Vast Number ◽  
Root Canals ◽  
Infected Root ◽  
Close Relationship ◽  
Single Use

Over the last quarter of the century, the place of the stainless steel endodontic instruments was taken slowly and surely by nickel–titanium files, becoming a “must have” instrument “for root canal treatments, even if steel instruments are still being used, mainly at the inception of the root canal treatment. Dentists increasingly use Nickel-Titanium (Ni-Ti) files for their properties that overlap those of stainless steel instruments in cleaning and giving a proper shape to the canal and the filling subsequently. It is well known the fragility and the rigidity of the steel instruments compared with the Ni-Ti ones. These new instruments also increased the speed of the treatment. In the opinion of the majority of the dentists root canal preparation represents a very important and challenging treatment being in close relationship with the following maneuvers like irrigation and filling [1,2]. The primary reason for instrumentation in case of root canals is that the bulk material contained within it needs to be removed [2] that can be ether pulp tissue, infected root dentine or necrotic debris. Hulsmann considers that these two processes, mechanical instrumentation and chemical treatment, cannot be separated and must go hand in hand, referred to as chemo-mechanical treatment [3,4]. Therefore, root canal instruments are indispensable in root canal therapy, even today in the age of implants, stem cells, biologic 3D printers and lasers. Being so useful, reliable, resistant and ultimately, not cheap, the initially single-use instruments got to be reused by a vast number of practitioners because the legislation wide world is not prohibiting it nor imposing the single-use, with very few exceptions.

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