Active clinical trials for "Periapical Periodontitis"

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.

This study aims to evaluate an endodontic treatment protocol using adjunctive steps for disinfection of teeth with primary endodontic infections.

Increased incidence of apical periodontitis was reported where root filling was found coronal to the marginal bone due to communication between pulp and periodontal space. It has been suggested to place intraorifice barrier in the canal to provide coronal seal. However there exists a void in literature regarding clinical validity of the termination of obturation apical to marginal bone and placement of intraorifice barrier in resolution of periapical pathology. Therefore this randomized controlled trial intends to investigate effect of coronal level of obturation on endodontic success and marginal breakdown.

This study evaluates the effect of leucocyte and platelet rich fibrin (L-PRF) during endodontic microsurgery (EMS) on patient's post-operative comfort and periapical bone healing. Also the influence of an occlusive membrane barrier in EMS on the periapical bone healing will be studied. The trial design is an open randomized controlled clinical trial with a 2x2 factorial design. Half of the participants will receive EMS with L-PRF (experimental group), the other half without (control group). The control and experimental group will be divided in 2 subsequent groups: half of the participants will receive an occlusive membrane during EMS, the other half not.

In this clinical trial, the researchers will investigate the effect of single-file reciprocating file system (Reciproc) versus multi-file rotational file systems (ProTaper Next) on the postoperative pain in adult patients who have necrotic pulp and apical periodontitis. The participants will be assigned by chance to separate groups that compare 2 different treatments, reciprocating single-file system (Reciproc) and rotational multi-file system (ProTaper Next).

This study will compare the effect of three different sealers on healing of teeth with apical periodontitis after primary root canal treatment.

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.

.There is no general agreement regarding the optimal concentration of sodium hypochlorite to be used in endodontic treatment.Therefore, this study aims to evaluate the effect of sodium hypochlorite concentration on the success of primary root canal treatment. The study population comprised of patients requiring primary root canal treatment following the diagnosis of pulpal necrosis with chronic apical periodontitis in mature mandibular first and second molars.Patients were randomly allocated in either High concentration or Low concentration group.

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: 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. 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. 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 aim of this study is to evaluate the effects of cryotherapy applications on the inflammatory cytokine and collagenase matrix metalloproteinase levels during root canal treatment and postoperative pain intensity and incidence. Mandibular premolar teeth of 60 male patients within the 20-30 years old range, diagnosed with asymptomatic apical periodontitis will be included to the study for this purpose. The experimental protocols consist clinical and laboratory phases. In clinical phase, procedures of cryotherapy and control groups will be applied in 2-visit-root canal treatment. The samples, which were collected during root canal treatment, will be subjected to enzyme-linked immunosorbent assay (ELISA) analysis in laboratory. Levels of interleukin and inflammatory destructive enzymes will be determined in collected samples. During the analysis of visual analogue scale scores, the correlation between the changes of the cytokine and proteolytic enzyme levels and presence and intensity of pain will be evaluated.