Tanaka and Johnston used the width of the lower incisors to predict the size of what unerupted teeth?

The width of the lower incisors is a valuable measurement in predicting the size of unerupted teeth, particularly the maxillary and mandibular canines and premolars. This correlation helps dental professionals estimate space requirements for these teeth as part of comprehensive orthodontic planning.

The research conducted by Tanaka and Johnston established a formula that utilizes the mesiodistal width of the FM lower incisors to calculate the expected size of the incoming canines and premolars. Since the lower incisors are often more stable in size compared to the canines and premolars, they provide a reliable basis for these predictions.

When it comes to developing treatment plans or orthodontic assessments, understanding how the sizes of different teeth relate to one another is essential. This enables practitioners to anticipate potential spacing issues or crowding that may occur when the canines and premolars erupt. Thus, the connection between the lower incisor width and predicting the maxillary and mandibular canines and premolars is affirmed through established dental research and practices.