Which ratio in Bolton's analysis assesses the interdigitation potential of mandibular and maxillary teeth?

Bolton's analysis is a quantitative evaluation of tooth size discrepancies between the maxillary and mandibular arches, which is crucial in orthodontic treatment planning. The specific ratio that assesses the interdigitation potential of mandibular and maxillary teeth is the overall ratio of the combined tooth widths of the maxillary teeth to the combined tooth widths of the mandibular teeth. This ratio is fundamental because it helps identify if the teeth from both arches will fit together properly, which is important for achieving optimal occlusion.

This analysis specifically compares the total widths of all teeth in both arches, indicating how they interdigitate during occlusion. When the ratio between the two arches aligns, it suggests better interdigitation potential, meaning that the teeth are likely to come together correctly during biting and chewing. Any significant discrepancy noted in this ratio can lead to occlusal issues and may indicate the need for orthodontic intervention to correct alignment.

The other options either focus on specific segments of teeth, such as just the anterior teeth, or do not directly evaluate the relationship between the entire mandibular and maxillary arches. Segmental analysis investigates specific groups of teeth rather than the overall relationship necessary for proper interdigitation. Arch length refers to the measurement of the distances within the arches