Occlusion is the relationship between the maxillary and mandibular teeth when they are in contact, encompassing both static positions and dynamic movements. As an academic concept and research field, it investigates the anatomical arrangement of teeth, the mechanics of mandibular movement, and the complex functional interplay between teeth, jaws, muscles of mastication, and temporomandibular joints within the stomatognathic system. Key areas of study include normal occlusal schemes, deviations (malocclusions), and their impact on oral health and function. Understanding occlusion is fundamental for diagnosis, treatment planning, and clinical interventions in dentistry, particularly in prosthodontics, orthodontics, and restorative dentistry.