[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"asymptomatic-apical-periodontitis\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:asymptomatic-apical-periodontitis":28},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,4,0,[8,51,74,99],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":15,"eligibilityCriteria":16,"healthyVolunteers":11,"sex":17,"minAge":18,"maxAge":19,"enrollmentInfo":20,"targetDuration":4,"studyType":23,"phases":24,"briefSummary":26,"conditions":27,"keywords":31,"overallStatus":38,"whyStopped":4,"lastUpdateSubmitDate":39,"lastUpdatePostDateStruct":40,"startDateStruct":43,"completionDateStruct":45,"leadSponsor":47,"locationsCount":50},"100649456","cryotherapy-pge2-ngf-levels-and-pain-after-endodontic-retreatment-100649456",false,"NCT07733700","Cryotherapy, PGE2, NGF Levels and Pain After Endodontic Retreatment","Evaluation of the Relationship Between PGE2, NGF, and Postoperative Pain in Patients With and Without Intracanal Cryotherapy in Single-visit Endodontic Retreatment","ICE-PAIN","Inclusion Criteria:\n\n* Age 18-65 years, systemically healthy individuals (ASA I-II)\n* Single-rooted mandibular premolar teeth with a previous root canal treatment, requiring non-surgical retreatment due to asymptomatic apical periodontitis\n* Presence of periapical radiolucency (Periapical Index \\[PAI\\] ≥ 3)\n* No antibiotic use within the past 1 month\n* Willing to participate and has signed the informed consent form\n\nExclusion Criteria:\n\n* Pregnancy or lactation\n* Uncontrolled diabetes mellitus (HbA1c \\> 7%), diagnosed autoimmune disease, or receiving immunosuppressive therapy\n* Systemic corticosteroid use within the past 3 months\n* Body mass index (BMI) greater than 35 kg\u002Fm²\n* Presence of acute infection (e.g., acute apical abscess or cellulitis)\n* Conditions precluding retreatment, including advanced periodontal breakdown (clinical attachment loss \\> 5 mm), root resorption, perforation, or advanced canal calcification\n* Absence of an opposing (antagonist) tooth resulting in lack of functional occlusal contact\n* Diagnosed chronic pain syndrome or currently receiving active psychiatric treatment\n* Smoking more than 10 cigarettes per day\n* Use of analgesics or NSAIDs within the past 24 hours\n* Antibiotic use within the past 1 month","ALL","18 Years","65 Years",{"count":21,"type":22},100,"ESTIMATED","INTERVENTIONAL",[25],"NA","This prospective, randomized, controlled, single-blind, parallel-group clinical trial evaluates whether intracanal cryotherapy reduces postoperative pain and inflammatory biomarker levels following single-visit endodontic retreatment of teeth with asymptomatic apical periodontitis. A total of 100 patients (18-65 years, systemically healthy, ASA I-II) requiring non-surgical retreatment of a single-rooted mandibular premolar tooth will be randomly assigned via computer-generated randomization to one of two equal groups (n=50 each): a cryotherapy group, receiving intracanal final irrigation with sterile saline cooled to 2.5°C for 5 minutes, and a control group, receiving the same irrigation protocol with saline at room temperature (20-22°C). Salivary nerve growth factor (NGF) and gingival crevicular fluid (GCF) prostaglandin E2 (PGE2) levels will be measured by ELISA at baseline (T0), 24 hours (T1), and 72 hours (T2). Postoperative pain will be assessed using a visual analog scale (VAS, 0-100 mm) at 6, 12, 24, 48, and 72 hours and on day 7, with the 24-hour VAS score as the primary comparison point. Rescue analgesic (paracetamol) consumption will also be recorded and compared between groups. The study aims to determine whether intracanal cryotherapy lowers postoperative pain and biomarker levels compared to standard-temperature irrigation, and to evaluate the correlation between PGE2\u002FNGF levels and pain intensity.",[28,29,30],"Asymptomatic Apical Periodontitis","Endodontic Retreatment","Cryotherapy",[32,33,34,35,29,36,37],"Intracanal Cryotherapy","Postoperative Pain","Prostaglandin E2","Nerve Growth Factor","Gingival Crevicular Fluid","Saliva Biomarkers","NOT_YET_RECRUITING","2026-07-28",{"date":41,"type":42},"2026-07-29","ACTUAL",{"date":44,"type":22},"2026-08-01",{"date":46,"type":22},"2027-09-01",{"name":48,"class":49},"Alanya Alaaddin Keykubat University","OTHER",1,{"id":52,"slug":53,"hasResults":11,"nctId":54,"briefTitle":55,"officialTitle":56,"acronym":4,"eligibilityCriteria":57,"healthyVolunteers":11,"sex":17,"minAge":18,"maxAge":4,"enrollmentInfo":58,"targetDuration":4,"studyType":23,"phases":60,"briefSummary":61,"conditions":62,"keywords":4,"overallStatus":64,"whyStopped":4,"lastUpdateSubmitDate":65,"lastUpdatePostDateStruct":66,"startDateStruct":68,"completionDateStruct":70,"leadSponsor":72,"locationsCount":50},"100616792","evaluation-of-postoperative-pain-and-success-rate-between-lateral-condensation-and-warm-vertical-obturation-techniques-100616792","NCT07310212","Evaluation of Postoperative Pain and Success Rate Between Lateral Condensation and Warm Vertical Obturation Techniques","Evaluation of Postoperative Pain and Success Rate Between Lateral Condensation and Warm Vertical Obturation Techniques - A Randomized Controlled Trial","Inclusion Criteria:\n\n* Adults aged 18 years or older.\n* Patients requiring endodontic treatment for single-rooted necrotic teeth.\n* Radiographic and clinical diagnosis of asymptomatic apical periodontitis.\n* Ability to understand the study and provide written informed consent.\n\nExclusion Criteria:\n\n* Teeth diagnosed with symptomatic apical periodontitis.\n* Pregnant or lactating women.\n* Patients with systemic diseases affecting pain perception (e.g., uncontrolled diabetes, chronic pain conditions).\n* Teeth that have been previously endodontically treated.\n* Patients taking medications that may influence pain perception (e.g., chronic analgesic or anti-inflammatory drug use).\n* Periodontally compromised teeth with significant bone loss or mobility.",{"count":59,"type":22},80,[25],"Brief Summary\n\nPostoperative pain is a common complication following root canal treatment, particularly in necrotic teeth with asymptomatic apical periodontitis. Although obturation technique has been suggested as a contributing factor to postoperative discomfort, direct clinical comparisons between commonly used methods remain limited. Cold lateral condensation has traditionally been considered the standard obturation technique, while warm vertical obturation systems such as Obtura II have gained popularity due to their potential for improved adaptation of gutta-percha.\n\nThis randomized controlled clinical trial aims to compare postoperative pain experience and treatment outcomes following cold lateral condensation and warm vertical obturation in single-rooted necrotic teeth. Postoperative pain will be assessed during the early healing period, along with patient-reported outcomes and short-term clinical and radiographic healing. The results of this study are expected to provide clinically relevant evidence to support evidence-based obturation technique selection and improve patient comfort in endodontic practice.",[63,28],"Necrotic Pulp","RECRUITING","2026-03-27",{"date":67,"type":42},"2026-04-02",{"date":69,"type":42},"2024-10-17",{"date":71,"type":22},"2026-12-01",{"name":73,"class":49},"University of Jordan",{"id":75,"slug":76,"hasResults":11,"nctId":77,"briefTitle":78,"officialTitle":79,"acronym":4,"eligibilityCriteria":80,"healthyVolunteers":11,"sex":17,"minAge":18,"maxAge":81,"enrollmentInfo":82,"targetDuration":4,"studyType":23,"phases":84,"briefSummary":85,"conditions":86,"keywords":87,"overallStatus":64,"whyStopped":4,"lastUpdateSubmitDate":90,"lastUpdatePostDateStruct":91,"startDateStruct":93,"completionDateStruct":95,"leadSponsor":97,"locationsCount":50},"100612677","effect-of-calcium-based-bioceramic-sealer-and-resin-based-sealer-on-postoperative-pain-100612677","NCT07256691","Effect of Calcium-Based Bioceramic Sealer and Resin-Based Sealer on Postoperative Pain","Effect of Calcium-Based Bioceramic Sealer and Resin-Based Sealer on Postoperative Pain in Adults With Asymptomatic Apical Periodontitis","Inclusion Criteria:Age 18-55 years.\n\n* Both genders.\n* Teeth diagnosed with asymptomatic apical periodontitis.\n* Teeth are asymptomatic (no pain on percussion or palpation).\n* Non-vital pulp (no response on Electric Pulp Testing).\n* Teeth with fully formed apices.\n* Teeth with Periapical Index (PAI) scores 2-4 on radiographs.\n\nExclusion Criteria:\n\n* Medically compromised patients (e.g., those with immunosuppressive or systemic diseases, or on medications that may affect healing).\n* Patients who refuse to participate or are unable to communicate their symptoms (e.g., due to psychological disorders).\n* Teeth where full working length cannot be reached.\n* Periodontally compromised teeth (probing depth \\>4 mm).\n* Complications during treatment (e.g., separation of a file, ledging).\n* Overfilling (filling beyond the radiographic apex) or short filling (\\>2 mm from the radiographic apex).","55 Years",{"count":83,"type":22},60,[25],"This study aims to compare the effect of calcium-based bioceramic sealer and resin-based sealer on postoperative pain in adult patients with asymptomatic apical periodontitis undergoing root canal treatment. Asymptomatic apical periodontitis is a condition where the tissue around the tip of the tooth root is inflamed or shows a lesion on X-ray, but the patient does not experience pain.\n\nA total of 60 patients will be randomly assigned to receive root canal treatment with either the bioceramic sealer (Group A) or the resin-based sealer (Group B). Pain after treatment will be measured using a 0-10 Numeric Pain Rating Scale at 4, 24, and 48 hours post-treatment. The highest pain score reported will determine whether the treatment is considered a success (no or mild\u002Fmoderate pain) or failure (severe pain).\n\nThe results of this study will provide evidence on which sealer is associated with less postoperative pain, helping clinicians make informed decisions about root canal filling materials.",[28],[88,89],"Bioceramic sealer","Resin-based sealer","2025-12-18",{"date":92,"type":42},"2025-12-24",{"date":94,"type":42},"2025-12-01",{"date":96,"type":22},"2026-02-28",{"name":98,"class":49},"Fatima Memorial Hospital",{"id":100,"slug":101,"hasResults":11,"nctId":102,"briefTitle":103,"officialTitle":104,"acronym":4,"eligibilityCriteria":105,"healthyVolunteers":106,"sex":17,"minAge":18,"maxAge":107,"enrollmentInfo":108,"targetDuration":4,"studyType":23,"phases":110,"briefSummary":111,"conditions":112,"keywords":113,"overallStatus":64,"whyStopped":4,"lastUpdateSubmitDate":115,"lastUpdatePostDateStruct":116,"startDateStruct":118,"completionDateStruct":120,"leadSponsor":122,"locationsCount":50},"100557814","comparison-of-the-effects-of-bio-ceramic-and-epoxy-resin-based-sealers-on-postoperative-pain-after-root-canal-treatment-100557814","NCT06543004","Comparison of the Effects of Bio Ceramic and Epoxy Resin-based Sealers on Postoperative Pain After Root Canal Treatment","Comparison of the Effects of Bio Ceramic and Epoxy Resin-based Sealers on Postoperative Pain After Root Canal Treatment: A Randomized Controlled Trial at Primary Health Care Corporation, Qatar.","Inclusion Criteria:\n\n* Permanent single rooted tooth 1-1 configuration and complete root development.\n* Requiring root canal treatment.\n* Diagnosed with Asymptomatic apical periodontitis, teeth asymptomatic, periapical index will exhibit an apical radiolucency.\n* Willing to Participate.\n\nExclusion Criteria:\n\n* Medically compromised patients.\n* Inability to reach working length, complication during treatment.\n* Retreatment teeth, multi rooted teeth.\n* Periodontological compromised teeth.\n* Uncooperative patients.\n* Pregnant patients.",true,"60 Years",{"count":109,"type":22},40,[25],"This study aims to compare the effect of bio ceramic sealer and resin-based sealer on the intensity and occurrence of post operative pain in single rooted teeth with asymptomatic apical periodontitis.",[28],[88,114],"Resin based sealer","2024-11-20",{"date":117,"type":42},"2024-11-25",{"date":119,"type":42},"2024-10-28",{"date":121,"type":22},"2025-12-31",{"name":123,"class":124},"Primary Health Care Corporation, Qatar","OTHER_GOV"]