Well aligned deciduous dentition is an indication of: PGCEE MDS Entrance 2025

 # Well aligned deciduous dentition is an indication of:

A. Potential crowding

B. Disto occlusion

C. Mesio occlusion

D. Well aligned permanent teeth

The correct answer is:

A. Potential crowding

Explanation:

• Well-aligned deciduous dentition (primary teeth) with little to no spacing is often a predictor of potential crowding in the permanent dentition.

• Primary teeth are smaller than permanent teeth, and deciduous arches typically exhibit natural spacing ("primate spaces") to accommodate the larger permanent successors. If primary teeth are tightly aligned, it suggests insufficient space for the eruption of larger permanent teeth, increasing the risk of crowding.

• D. Well-aligned permanent teeth is incorrect because spaced (not tightly aligned) primary teeth are actually a better indicator of sufficient arch space for proper alignment of permanent teeth.

• B. Disto-occlusion and C. Mesio-occlusion refer to malocclusions (Class II and Class III bites, respectively) and are unrelated to primary tooth alignment.

Key Takeaway: Tightly aligned primary teeth (lacking spacing) often signal future crowding, as permanent teeth require more space. Spaced primary dentition is ideal for alignment of permanent teeth.