Root canal retreatment of mandibular molars. Other and unspecified diseases of pulp and periapical tissues
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: – First or second mandibular molars with a history of root canal treatment having a Periapical Index (PAI) score of 1, 2, or 3. Teeth previously treated with root canal therapy but unsuccessful and having developed apical periodontitis (AP). Individuals with a spontaneous pain score of less than 54 mm on the HP-VAS scale Teeth with radiographically poor-quality root canal fillings. Teeth with failed or insufficient coronal restoration requiring root canal retreatment. Patients aged 18 to 65 years Patients with ASA I and ASA II Patients without acute pain or extracoral swelling Patients with acute apical abscess Patients who voluntarily participate in the study and are available for follow-up Absence of severe periodontal problem in the tooth in question Teeth with prefabricated posts
Exclusion criteria
Exclusion criteria: Individuals with a spontaneous pain score greater than 54 on the HP-VAS scale Patients whose retreatment requires two sessions.– Teeth with internal or external root resorption Teeth with vertical root fracture or dental crack Teeth with open or immature apex Patients with systemic diseases (such as bone metabolism disorders) Patients taking medications affecting bone metabolism Patients with acute pain who have taken analgesics in the past 24 hours Patients who did not attend follow-up sessions third molars Presence of severe periodontal disease rendering the tooth unsuitable for endodontic treatment Periodontal probing depth greater than 3 mm. Root canal treatment extending beyond the canal length and over instrumentation Teeth with cast posts or broken files inside the canal Patients with contraindications to NSAIDs Patients who experience treatment errors during retreatment Patients who are accidentally over-instrumented during the procedure Patients in whom post-operative radiography shows any extrusion of the root canal filling material Teeth with extensive caries making restoration impossible
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pain score in the Heft-Parker Visual Analog Scale (HP-VAS) questionnaire. Timepoint: Before the start of treatmentDuring the injectionDuring removal of the coronal restorationDuring removal of gutta-percha from the canalsDuring canal preparation and irrigationDuring obturationImmediately after completion of the procedure,6 hours after the procedure,12 hours after the procedure, 24 hours after the procedure, 2 days after the procedure, 3 days after the procedure?7 days after the procedure. Method of measurement: Heft-Parker Visual Analog Scale (HP-VAS) questionnaire. | — |
Secondary
| Measure | Time frame |
|---|---|
| Quality of life score. Timepoint: Before the start of treatment, 7 days after treatment. Method of measurement: Oral Health Impact Profile-14 (OHIP-14) questionnaire. | — |
Countries
Iran (Islamic Republic of)
Contacts
Kerman University of Medical Sciences