The Quickley-Hein plaque index (PI) is a tool used by dentists to measure the amount of plaque on a patient’s teeth. It is determined by visually inspecting the buccal and lingual surfaces of each tooth and scoring them on a scale from 0 to 5, with higher scores indicating a greater amount of plaque.
Harmony is an AI tool which uses Large Language Models to automatically match items from different questionnaires, even across different languages. You can try Harmony here: https://harmonydata.ac.uk/app. Harmony is also available as a Python and R package.
You may also be interested in Harmony Meta, our new discovery engine that helps you search through vast catalogues of study metadata to identify the variables you need for your research.
