View clinical trials related to Apical Periodontitis.
Filter by:Post-treatment apical periodontitis is a fairly prevalent condition frequently caused by a persistent endodontic infection due to failure of the endodontic treatment. Microbial species in treated or untreated root canals were found to be different, with the former being less diverse and mainly characterized by Gram positive, facultative anaerobes bacteria than the latter. Enterococcus faecalis is the most frequently detected species in root-filled teeth in many studies (Zhang et al., 2015). In fact, E. Faecalis retains many virulence factors allowing adhesion to host cells and extracellular matrix, tissue invasion and damage through toxins release, as well as the ability to survive even in harsh environmental conditions. Further studies are needed to clarify E. faecalis prevalence among the different forms of pulpal and periapical lesions as well as its correlation with clinical symptoms.
Patients with painful molars will be randomly assigned to 2 different groups: GentleWave and EndoActivator. The root canals will be completed using identical protocols except in the mode of delivery and activation of irrigation (using either the GentleWave or EndoActivator). Postoperative pain and pain pill consumption will be measured for the 4 days following their root canal using a Visual Analog Scale and Pain Pill Log, respectively. The alternative hypothesis is that patients undergoing treatment using the GentleWave will experience less pain postoperatively and will consume fewer pain pills. A 12-month follow up with exam and radiographs will be completed to evaluate healing.
This study is designed to find out the effect of maintaining apical patency versus non maintaining apical patency on post-operative pain after single visit endodontic treatment in necrotic teeth with asymptomatic apical periodontitis
The purpose of the study is to evaluate the effect of Mesenchymal Stromal Cell (MSC) implantation on pulp and periapical regeneration of immature teeth with pulp necrosis and chronic apical periodontitis. BACKGROUND: - Post-traumatic pulp necrosis prevents root development in children and adolescents. - The multipotent ability of MSC to differentiate into bone-forming cells (osteoblasts) and dentin-forming cells (Odontoblast) has allowed the development of protocols to induce dental pulp regeneration in preclinical models and patients with immature teeth with pulpal necrosis. IMPACT: - Worldwide, post-traumatic pulp necrosis in children and adolescents constitutes a health problem in the endodontic area. - Treatment with MSC would provide an effective therapeutic alternative to patients with pulp necrosis and incomplete root formation. - The possible pulp and periapical regeneration of immature teeth induced by MSC would have a huge impact on the treatment of these patients. Eligibility for EMC implant study Age: 6 to 16 years Sex: Male or Female Healthy volunteers accepted: NO. TREATMENT GROUPS: In the present study, the implantation of MSC will be performed in patients with immature teeth with pulpal necrosis with apical periodontitis, who will receive the appropriate endodontic treatment (according to the guidelines of the American Association of Endodontics) and implantation of allogeneic BM-MSC . This group will be compared with the history made in the Postgraduate Endodontics of the Universidad Central de Venezuela (UCV) and with international case series made by revascularization. Clinical follow-up of each patient: 1. Clinical controls (facial evaluation, gingival evaluation, apical palpation, horizontal and vertical percussion, cold and heat sensitivity tests) will be carried out on days 0, 7, 30, 90, 180 and 364. Additionally, a clinical evaluation will be carried out at the two years post-implantation of MSC. 2. Radiological controls will be carried out on days 0, 7, 30, 90, 180 and 364. Additionally, they will be carried out two years post-implantation of MSC. 3. A tomographic evaluation will be performed when was evident periapical repair in a periapical radiograph. To measure root formation, root canal narrowing and verification the periapical repair in 3D.
The purpose of this randomized controlled clinical trial was to evaluate two dimensionally and 3-dimensionally the effect of resorbable collagen-based bone filling material on periapical healing following endodontic microsurgery (EMS) on endodontic lesions presenting four-wall defect.
Aim: This study aims to assess the effect of root canal disinfection with a 980 µm diode laser following chemomechanical root canal preparation on the severity of pain after root canal treatment (RCT). Materials and Methods: In present study, asymptomatic, single-rooted teeth with periapical index (PAI) score 3 or 4 were included. All patients were treated with two visits of root canal treatment including dressing with calcium hydroxide. Patients were randomly divided into two groups (n: 28). 'Control (no laser)': The final irrigation was performed using 5ml 2.5% NaOCI, followed by 5 ml 17% EDTA and 5 ml distilled water. 'Laser Disinfection (LD)': Root canals were irradiated with 980 µm diode laser after final irrigation at both visits. The pain levels were evaluated using visual analog scale (VAS) after 8, 24, 48 hours and 7 days. In addition, analgesic intake and time intervals were recorded by patients. The collected data were statistically analyzed with the Chi-square and Mann-Whitney U test (p<0.05).
PUFA Index was introduced to detect the clinical consequences of untreated dental caries. To date, there are no studies on the reliability and accuracy of the PUFA index as a screening tool. Other than indices, radiographs were sometimes used as a screening tool using the validated Periapical Index (PAI). The aim of this study was to evaluate the reliability and accuracy of PUFA and PAI in screening for clinical outcomes of untreated caries, specifically pulpal and periapical diseases. The reference standard is the clinical diagnosis, as categorized by the American Association of Endodontists. Intra- and inter-examiner reliability will be determined using Cohen's kappa. Sensitivity, specificity, positive predictive value, and negative predictive value will be calculated. Receiver Operating Characteristics (ROC) contrast estimation will be computed to compare the two index tests.
The purpose is to investigate influence of bioceramic filling of the root canal and photodynamic therapy on periapical healing and development of postoperative pain after endodontic retreatment. Patients are divided into two main groups and each of the group is divided into two subgroups. Main groups are patients receiving photodynamic therapy and patients receiving passive ultrasonic irrigation. Each of the main group is divided by the root canal filling material on the AH+ group and BioRoot group.
The aim of this prospective, randomized, controlled double-blind study is to evaluate the effectiveness of biodentine compared with MTA used as pulp space barrier on discoloration of teeth after regenerative based non-obturation root canal treatment in mature single canal with pulp necrosis and apical periodontitis.
Apical periodontitis is a dental infection which develops around the root of a tooth and affects ~4-6% of the UK population. Current treatment strategies focus solely on removing bacteria from within the root canal space during Non-Surgical Root Canal Treatment (NSRCT). Despite radical improvements in techniques available to disinfect canals, over the last 2-3 decades there has been no proportionate improvement in success rates, with ~20% of cases failing to demonstrate complete healing following NSRCT. Over time this has placed significant burden on public resources as evidenced by increased referrals to dental hospitals, extensive waiting lists and increased use of anti-microbials. It has long been known numerous bioactive molecules (dentine extracellular matrix components [dECM]) exist within the structure of the dentine. In a laboratory setting, they have demonstrated significant antibacterial properties and the ability to induce the functional processes of dental tissue repair. Through a different irrigation procedure, this research group have optimised methods for releasing dECMs during NSRCT and hypothesise this intervention could potentially promote a reduction in inflammation, improve healing and lead to more favourable outcomes for patients suffering from apical periodontitis, a concept which has not yet been investigated. It is proposed that to test this hypothesis at the Birmingham Dental Hospital by comparing clinical/radiographic signs of periradicular healing, and the molecular inflammatory response, in patients undergoing standard NSRCT (control arm) to those who having NSRCT with an irrigant regime that promotes release of dEMCs (intervention arm). Data generated from this randomised controlled pilot study will not only help to understand the process of healing following treatment of apical periodontitis at a molecular level, but also help to explore if there is therapeutic potential in enhancing dEMC release during NSRCT.