Pediatric dentistry has its own vocabulary because the patients, the dentition, and the behavioral context all differ from adult practice. This section of the Rebrief Dental Glossary defines the terms specific to pediatric dental care — starting with the primary dentition itself. Each of the twenty primary teeth has its own glossary entry, organized by quadrant (mandibular vs. maxillary, left vs. right) and tooth type (central incisor, lateral incisor, canine, first molar, second molar). These entries cover eruption sequence, root anatomy, and the structural differences between primary and permanent teeth that shape how fillings, extractions, and pulp therapy are approached in children. We also cover the behavioral and developmental terms that come up in pediatric consultations: pacifier habit, thumb sucking habit, and the appliance therapies that address habits before they alter occlusion. Each term entry pairs a working clinical definition with the developmental and behavioral context that matters at chairside. Whether you’re a pediatric specialist, a general dentist treating children, a hygienist working in a pediatric practice, or a parent researching what a clinician told you, this is a focused reference for the vocabulary of dental care during childhood. Browse alphabetically below or search across the full Rebrief Dental Glossary.