Which method is favorable for maintaining the root-crown ratio during crown placement?

Maintaining the root-crown ratio is crucial for the long-term success of a crown, as it directly influences the biomechanical stability and health of the tooth structure. Orthodontic extrusion is a method that effectively increases the clinical crown height through orthodontic means. By applying lateral forces to the tooth, the apex is maintained in its original position while the crown is drawn out, thereby enhancing the root-crown ratio. This is particularly beneficial for teeth that have experienced loss of structure due to caries or trauma, as it allows for better retention and support for the crown being placed.

Orthodontic extrusion not only helps in establishing the desired restorative tooth height but also contributes to maintaining the periodontal health by repositioning the tooth in a more favorable relationship with the surrounding tissue. Thus, this method stands out as a favorable approach for preserving the root-crown ratio during crown placement.