Chronic apical periodontitis

This study looks at whether a special dental sealer (bioceramic) helps heal infections and reduces pain after a repeat root canal done in one visit. About 70 adults with failed root canals and silent infections in their back teeth will take part. They will get the new sealer or a…

This study tests a new heat-resistant calcium silicate-based sealer used during root canals in people with infected tooth roots (apical periodontitis). The sealer is applied with different filling techniques to see if it improves bone healing and reduces pain after treatment. Par…

This study tests whether a patient's own stored tooth can be used as a graft to preserve jawbone after tooth extraction. About 21 adults needing at least two teeth pulled will receive this treatment. The goal is to maintain bone width and height for better future dental implant p…

This study tests whether personalized oral hygiene advice, delivered through an AI-powered mobile health app by trained volunteers, can improve gum health in older adults. Eighty-eight participants aged 60 and over from daycare centers in Hong Kong will receive bi-weekly advice b…

This early-phase trial tests whether calcium silicate and pectin, placed inside the tooth, can kill bacteria better than standard calcium hydroxide in root canals of dead teeth with abscesses. 63 adults with a single infected premolar will receive one of the three medications. Th…

This study compares two methods to clean infected root canals during a single dental visit: laser-activated irrigation and sonic-activated irrigation. Sixty adults with chronic apical periodontitis (a tooth infection) will receive one of the two treatments. Researchers will measu…

This study tests two standard methods—manual scraping with a hand tool or using a small rotating bur—to clean out unhealthy tissue from a tooth socket after extraction. About 60 adults with long-term tooth infections will be randomly assigned to one method, then all receive a bon…

This study looks at two ways to clean root canals (rotary vs. reciprocating files) and whether rinsing with very cold saline (cryotherapy) reduces pain after the procedure. Sixty adults with infected but painless teeth will be randomly assigned to one of four groups. Patients wil…

This study looks at two different cleaning solutions used during root canal treatment for teeth with long-term infection. The goal is to see which method helps the infection heal better and causes less pain afterward. 63 healthy adults with infected front or premolar teeth will b…

This study tests a less invasive surgical approach for treating persistent tooth infections. Instead of removing all infected tissue and using stitches, surgeons remove only part of the tissue and seal the area with a medical glue. The goal is to see if this method reduces pain, …

This study looks at three different methods to activate cleaning fluids during root canal retreatment: ultrasonic, sonic, and laser. The goal is to see which one causes the least pain and helps the infection heal best. Seventy-five adults with previously treated teeth that still …

This study follows 100 people who already have short, 3D-printed dental implants in the back of the upper or lower jaw. Researchers measure bone loss and other dental health markers over three years to see how well these implants hold up. The goal is to learn whether these specia…

This study looks at whether a person's genetic makeup influences how well a tooth infection heals after root canal treatment. Researchers will collect saliva samples from 96 adults with chronic apical periodontitis and analyze specific genes related to inflammation and bone repai…

This study follows 60 adults with infected teeth who receive standard root canal treatment. Researchers collect fluid from around the tooth before and after treatment to see if certain proteins can predict whether the infection heals on X-rays after one year. The goal is to find …

This study looks at how different root canal cleaning methods—laser and ultrasound—affect the immune response in people with and without type 2 diabetes who have a tooth infection called apical periodontitis. Researchers will measure certain immune markers in fluid from around th…