Milk tooth is another term for deciduous teeth, and there are several synonyms for this term. Baby teeth, primary teeth, temporary teeth, and first dentition are all synonyms for milk teeth. These teeth usually start to appear when a child is between six and twelve months old and begin to fall out around the age of six or seven. Primary teeth are essential for a child's dental development and play important roles in chewing, speaking, and maintaining space for permanent teeth to grow in. Encouraging good oral hygiene habits early on can help ensure that children's milk teeth remain healthy and strong, setting them up for a lifetime of good oral health.