Suppurative periapical periodontitis

This trial looks at whether antibiotics are needed after removing a tooth with a periapical abscess (an infection at the root tip). Half of the 176 adult participants receive amoxicillin for 5 days after extraction, while the other half get only pain relievers. A dentist checks t…

This study looked at how well a special dental material (calcium silicate sealer) works when re-treating root canals that have failed. 136 adults aged 18-65 with infected teeth were included. The main goal was to see if the infection healed on 3D X-rays and if symptoms like pain …

This study explores whether gas samples from the mouth can be collected and analyzed up to 7 days later to diagnose halitosis (bad breath). Researchers will take breath samples from 100 adults with gum disease and measure volatile sulfur compounds—the molecules responsible for ba…

This study tests an artificial intelligence system that measures the width of keratinized gingiva (a type of gum tissue) from smartphone photos. Researchers will compare the AI's measurements to those made by dental experts to see how accurate the tool is. The goal is to make gum…

This study asks whether the phase of the menstrual cycle influences pain and anxiety during a deep dental cleaning in premenopausal women with moderate gum disease. Researchers will compare pain scores and anxiety levels when treatment is done just before or just after menstruati…

This study looks at how oral hygiene habits and gum health affect quality of life in 160 adults. Participants will have a dental exam and fill out a questionnaire about how their mouth feels day-to-day. No treatment is given—the goal is simply to understand the connection between…

This study examined 318 adults to see if coffee drinking habits are linked to gum health. Participants were grouped by gum condition (healthy, gingivitis, or periodontitis) and asked about their coffee intake. Researchers measured plaque, bleeding, and gum pocket depth to find an…

This study looked at how the types of bacteria in an infected root canal change during routine dental treatment. Twenty-four adults with a chronic tooth abscess received standard root canal therapy using one of two bleach solutions (5.25% or 3% sodium hypochlorite) followed by a …

This small study tested two methods for cleaning infected root canals: ultrasonic activation and a 980-nm diode laser. Sixteen adults with dead (necrotic) teeth had their root canals cleaned with one of these methods. Researchers checked for leftover bacterial DNA to see which me…

This completed study looked at 108 Turkish adults to see if understanding dental health information is linked to gum health. Participants took a reading test about dentistry and had a dental exam. The goal was to find out if people with lower health literacy have worse gum diseas…

This completed study looked at how smoking affects gum health in 484 adults. Researchers compared current smokers to non-smokers by measuring plaque, gum bleeding, pocket depth, and gum recession. The goal was to better understand the link between smoking and periodontal disease.