Which statement best describes the difference in occlusion management between primary and mixed dentition?

• A. Primary dentition requires constant movement and no monitoring; mixed dentition requires monitoring
• B. Mixed dentition is characterized by spacing; primary dentition requires extensive interceptive orthodontics
• C. Occlusion management is the same for both stages
• D. Primary dentition features spacing to accommodate eruption; mixed dentition requires monitoring for eruption patterns, occlusal relationships, and potential interceptive orthodontics

Answer: (D)

Occlusion management changes as children grow. In primary dentition, there is natural spacing to accommodate the eruption of permanent teeth, and the bite is expected to change with growth, so the approach is mainly observation, prevention of decay, and preservation of primary teeth until they exfoliate. When mixed dentition is present, permanent teeth are erupting alongside primary teeth, so eruption patterns and the way the teeth come together can change the occlusion more substantially. Clinicians monitor how eruption proceeds, watch for emerging occlusal relationships and potential problems like crowding or crossbites, and plan interceptive steps to guide eruption, preserve space, or correct developing issues. For example, maintaining space after premature loss of a primary tooth or intervening early to correct a growing crossbite illustrates the proactive management possible in mixed dentition. This combination best describes how occlusion management differs between stages.