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Endodontic failure reasons

Roopashri Rajesh Kashyap, Siri Parvathi Beedubail, Raghavendra Kini, Prasanna Kumar Rao
Context: The identification of root canals plays an important role in successful endodontic diagnosis and treatment. An inappropriate identification of canal resulting in incomplete removal of pulp tissue from the root canals is the main reason for the failure of endodontic treatment in molars. Radiographic imaging is an essential investigative tool in successful endodontics. Cone beam computed tomography (CBCT) the imaging is relatively a new method to visualize the roots in all the three planes...
September 2017: Journal of Conservative Dentistry: JCD
Keziban Olcay, Hanife Ataoglu, Sema Belli
INTRODUCTION: The aim of this study was to review the factors related to the failure and extraction of unsuccessful endodontically treated teeth. METHODS: A total of 1000 teeth treated with nonsurgical root canal therapy were analyzed, and the following information was recorded for each patient: reasons for failure and extraction, type of tooth, presence and type of coronal restoration, smoking status, age, gender, and level of education. One main reason was recorded for each failed tooth...
January 2018: Journal of Endodontics
Maryam Ghamari, Narges Farhad Mollashahi, Mohammad Salarpour, Elnaz Mousavi, Kaveh Kazemian, Ehsan Moudi, Sepideh Arab
BACKGROUND: The main reason for the failure of endodontic therapy is the incomplete knowledge about the anatomical variation of root canals. One of the most important factors that leads to the failure of root canal treatment, is missed and untreated major root canals. OBJECTIVE: with respect to the complexity of mandibular incisors treatment and high prevalence of the second canal, and the possibility of the relationship between the crown size and the extra canal in these teeth, the aim of this study was to determine the relationship between crown size and root canal morphology in mandibular incisors with CBCT...
August 2017: Electronic Physician
Michael Naumann, Guido Sterzenbach, Thomas Dietrich, Kerstin Bitter, Roland Frankenberger, Manja von Stein-Lausnitz
INTRODUCTION: This is the first long-term randomized controlled trial to evaluate dentin-like glass fiber posts (GFPs) compared with rather rigid titanium posts (TPs) for post-endodontic restoration of severely damaged endodontically treated teeth with 2 or fewer remaining cavity walls. METHODS: Ninety-one subjects in need of post-endodontic restorations were randomly assigned to receive either a tapered GFP (n = 45) or TP (n = 46). Posts were adhesively luted by using self-adhesive resin cement, followed by composite core build-up and preparation of 2-mm ferrule design...
November 2017: Journal of Endodontics
Flávio Fernando Demarco, Kauê Collares, Marcos Britto Correa, Maximiliano Sergio Cenci, Rafael Ratto de Moraes, Niek Johannes Opdam
Composites resins have become the first choice for direct anterior and posterior restorations. The great popularity is related to their esthetic appearance and reduced need of sound tissue removal as compared with former treatments. Several studies have demonstrated that composite restorations may last long in clinical service. In this review we discuss the factors playing a role on the long-term longevity. Composite restorations have demonstrated a good clinical performance with annual failure rates varying from 1% to 3% in posterior teeth and 1% to 5% in anterior teeth...
August 28, 2017: Brazilian Oral Research
Tobias Otto
The objective of this follow-up study was to examine the performance of Cerec 1 inlays and onlays in terms of clinical quality over a mean functional period of 25 years. Out of 200 Cerec 1 inlays and onlays placed consecutively in 108 patients in a private practice between 1989 and early 1991, 141 restorations could be reevaluated in 65 patients after up to 26 years and 10 months. All ceramic inlays and onlays had been generated chairside using the Cerec 1 method, and had been seated adhesively using bonding composite...
2017: International Journal of Computerized Dentistry
Jitesh Wadhwa, Alpa Gupta, Suruchi Hans
The presence of an apicomarginal defect is one of the reasons for the failure of endodontic treatment. The best treatment option to treat an apicomarginal defect is to perform endodontic surgery using Guided Tissue Regeneration (GTR) membranes. The present case report evaluated the healing of periapical lesion along with apicomarginal defect using Platelet Rich Fibrin (PRF) as membrane in periapical surgery of mandibular first molar. Recall examination was performed at 3 and 18 months post surgery. A satisfactory periapical healing was evident using PRF in apicomarginal defect of mandibular first molar...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
Andreas Bartols, Eleni Roussa, Winfried Walther, Christof E Dörfer
INTRODUCTION: The aim of this study was to elucidate whether the use of mineral trioxide aggregate (MTA) in endodontic therapy in human teeth leads to the same regeneration of the apical tissues as observed in animals. METHODS: Four human teeth were identified in a policlinic that had been treated endodontically with MTA and had to be extracted for other reasons than just endodontic failure. All teeth were processed for histologic and one for immunohistochemical analyses to analyze the histologic response of the periapical structure to the former treatment with MTA...
May 2017: Journal of Endodontics
Mohammad Frough-Reyhani, Negin Ghasemi, Mohammadhosien Soroush-Barhaghi, Mahsa Amini, Yousefreza Gholizadeh
BACKGROUND: Persistent infection of the root canal due to the presence of resistance bacterial species, such as Enterococcus faecalis, has always been one of the most important reasons for endodontic treatment failure. This study investigated the antimicrobial efficacy of 1%, 2.5 % and 5% sodium hypochlorite in eliminating E. faecalis biofilms at different stages of development. MATERIAL AND METHODS: In this study 4-, 6- and 10-week-old E. faecalis biofilms were subjected to one of the following approaches: phosphate-buffered saline solution (PBS) or 1%, 2...
December 2016: Journal of Clinical and Experimental Dentistry
Kevin A Guldener, Carla L Lanzrein, Beatrice E Siegrist Guldener, Niklaus P Lang, Christoph A Ramseier, Giovanni E Salvi
INTRODUCTION: The aim of the present study was to evaluate both survival and failure rates of endodontically treated teeth restored with or without fiber post-retained restorations after a mean observation period of at least 5 years. METHODS: A total of 144 single-rooted and multirooted teeth in 100 subjects were endodontically treated following a predetermined aseptic protocol and restored with either a fiber post and a composite core or a composite filling without intraradicular retention...
February 2017: Journal of Endodontics
N Alvanforoush, J Palamara, R H Wong, M F Burrow
Composites are increasing in popularity as restorative materials. This growing role indicates the necessity of studies on their clinical outcome. In this study, clinical studies published on the performance of posterior composite restorations were included except those of less than a 24-month assessment period. Results of non-vital, anterior or primary teeth and cervical single-surface restorations were also excluded. Records about composite type, number of final recall restorations, failure/survival rate, assessment period and failure reasons were analysed for each decade...
November 16, 2016: Australian Dental Journal
Fabian Huettig, Ulf Peter Gehrke
PURPOSE: The prospective follow-up aimed to assess the performance of lithium disilicate crowns and clinical reasons of adverse events compromising survival and quality. MATERIALS AND METHODS: 58 patients were treated with 375 heat-pressed monolithic crowns, which were bonded with resin cement. Annual recalls up to five years included a complete dental examination as well as quality assessment using CDA-criteria. Any need for clinical intervention led to higher complication rate and any failure compromised the survival rate...
June 2016: Journal of Advanced Prosthodontics
Sadia Tabassum, Farhan Raza Khan
Inappropriate mechanical debridement, persistence of bacteria in the canals and apex, poor obturation quality, over and under extension of the root canal filling, and coronal leakage are some of the commonly attributable causes of failure. Despite the high success rate of endodontic treatment, failures do occur in a large number of cases and most of the times can be attributed to the already stated causes. With an ever increasing number of endodontic treatments being done each day, it has become imperative to avoid or minimize the most fundamental of reasons leading to endodontic failure...
January 2016: European Journal of Dentistry
Dilek Helvacioglu-Yigit, Husniye Demirturk Kocasarac, Boulos Bechara, Marcel Noujeim
INTRODUCTION: After endodontic surgery, radiographic assessment is the method of choice to monitor bone defect healing. Cone-beam computed tomography scans are useful to check and identify the reasons of failure of surgical intervention or confirm healing; however, the artifact generated by some root-end filling material might compromise this task. The objective of the study was to compare the amount of artifacts generated by 4 root-end filling materials and to test multiple exposure settings used with these materials, when the effective dose generated by each protocol was taken into consideration...
February 2016: Journal of Endodontics
Ravi Chauhan
DATA SOURCES: PubMed, the Cochrane Library and the databases of the Centre for Reviews and Dissemination were searched. STUDY SELECTION: Prospective randomised controlled trials (RCTs), clinical controlled trials (CCTs) and observational studies of Class I and/or Class II resin composite restorations with a sample size of more than 40 individuals or teeth and longer than four years follow-up were considered. RESULTS: Eight studies involving a total of 910 restorations in 420 patients were included...
December 2015: Evidence-based Dentistry
Valeria V Gordan, Joseph L Riley, D Brad Rindal, Vibeke Qvist, Jeffrey L Fellows, Deborah A Dilbone, Solomon G Brotman, Gregg H Gilbert
BACKGROUND: A prospective cohort study that included dentists in The National Dental Practice-Based Research Network was conducted to quantify 12-month failures of restorations that were repaired or replaced at baseline. The study tested the hypothesis that no significant differences exist in failure percentages between repaired and replaced restorations after 12 months. It also tested the hypothesis that certain dentist, patient, and restoration characteristics are significantly associated with the incidence of restoration failure...
December 2015: Journal of the American Dental Association
E Beshkenadze, N Chipashvili
Incomplete and superficial knowledge of morphological types and anatomical variations of the root canal system will become the reason leading to the failure of endodontic treatment. cone-beam computed tomography (CBCT) - it is a technologically more sophisticated, interesting, reliable, non-invasive imaging technique with high degree of visualization, considered as a particularly important and useful tool to study complexity and variability of canal system. 2753 teeth of 228 patients have been studied by CT...
October 2015: Georgian Medical News
Iftikhar Akbar
OBJECTIVES: The aim of the present study was to determine radiographically the different reasons and problems of endodontic treatment failure. METHODS: The periapical radiographs of 100 patients with one hundred teeth (130 root canals) were examined to identify the problems and failures of endodontic treatment. The various reasons of failure that is under filling, poor filling, over filling and presence of procedural errors were recorded for each root filled canal...
April 2015: International Journal of Health Sciences
Herzl Chai, Aviad Tamse
INTRODUCTION: Vertical root fracture (VRF) from apical condensation of gutta-percha is a common failure mode in endodontically treated teeth. Virtually all previous studies of VRF are limited to 1-canal roots. In this study, we consider experimentally and analytically VRF in roots with 2 canals. METHODS: The interior root morphology in mandibular molar teeth extracted from patients due to VRF or other reason was examined from a series of polished horizontal cross sections...
September 2015: Journal of Endodontics
Wen-hao Qian, Jin Hong, Pei-cheng Xu
PURPOSE: To analyze the possible causes of previous endodontic treatment failure by microscopic inspection during apical microsurgery. METHODS: Two hundred and eighty-nine teeth of previous endodontic treatment failure were collected from patients in Shanghai Xuhui District Dental Center, between January 2006 and January 2014. All surgical procedures were performed by using an operating microscope, and 238 roots were included in the study. The surface of the apical root to be resected or the resected root surface after methylene blue staining was examined during the surgical procedure and inspected with 26 magnification to determine the state of the previous endodontic treatment by using an operating microscope...
April 2015: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
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