Chronic apical periodontitis

This study looks at how well 3D printed bone grafts work for supporting dental implants in people with gum disease or bone loss. Researchers will check if the implants stay stable and how much the graft shrinks over 1 to 6 years. About 100 healthy adults who already received this…

This study tests whether a special irrigation solution called nanochitosan can help regenerate damaged tissue in infected teeth. Sixty adults with dead teeth and chronic infection will receive one of three irrigation methods during a single dental visit. Researchers will check fo…

This study tests a new program that teaches pregnant women in Bangladesh how to care for their teeth and gums during routine prenatal visits. Over 95% of pregnant women in Bangladesh have gum disease, but oral health is not part of standard pregnancy care. The study will compare …

This study tests whether using a donor bone graft (allograft) works as well as using your own bone (autograft) to repair defects where a tooth infection has damaged the surrounding bone. Fifty adults with these defects will receive one of the two grafts along with a collagen memb…

This study tests whether a gel made from a patient's own blood (platelet-rich fibrin) can help regenerate the inner part of infected or dead teeth in adults. 57 participants will receive either the gel or a standard blood-clot treatment. The goal is to see if the gel reduces infe…

This study tests whether breath samples collected in special bags remain stable for up to 7 days, which could allow people with bad breath (halitosis) to provide samples from home instead of traveling to a clinic. Researchers will compare gas levels measured right away and after …

This study will check if a simple questionnaire can accurately identify gum disease in adults. About 291 participants in Saudi Arabia will fill out the questionnaire and then have a standard dental exam. The goal is to see how well the questionnaire matches the exam results, whic…

This study will enroll 2,000 adults to see if non-invasive methods like smartphone photos, dental X-rays, and questionnaires can accurately detect gum disease compared to a standard clinical exam. Researchers will use artificial intelligence to analyze the images and combine data…

This trial tests whether flushing the inside of a tooth with cold saline (about 2.5°C) after root canal retreatment can lower pain and inflammation. One hundred adults needing retreatment on a lower premolar will be randomly assigned to receive either cold or room-temperature sal…

This trial looks at whether changing how the dentist's tool moves during a root canal can reduce pain afterward. Adults with an infected lower premolar will get standard root canal treatment, but the file system will use either a continuous spin or a back-and-forth motion, with d…

This study gathers mouth pictures from 150 adults with different gum conditions to teach an AI system how to spot gum disease. Participants simply have their teeth and gums photographed with a special probe. No treatment or medication is involved—just data collection to improve f…

This study will check if certain gene variations (MMP-2 and MMP-3) are linked to how well the bone around a tooth heals after root canal treatment. Fifty adults with chronic tooth infections will get standard root canal therapy and be followed for 12 months. Researchers will comp…

This study looks at three different ways to clean infected root canals in 66 men aged 18-35. The goal is to see which method best reduces signs of inflammation and infection. Researchers will measure certain proteins in the fluid around the tooth root before and after treatment.

This study looks at how much final-year dentistry and psychology students know about gum disease (periodontitis) and whether that knowledge is linked to their own gum health. About 60 students will fill out a questionnaire and get a dental check-up. The goal is to see if more kno…