What is the recommended approach: how should lower incisors be positioned with growth?

The recommended approach for the positioning of lower incisors during growth is to keep them upright. Maintaining the lower incisors in an upright position is essential for several reasons. An upright position allows for proper alignment and occlusion with the upper arch, which is crucial for effective function and aesthetics. This positioning helps in distributing occlusal forces evenly during chewing and minimizes the risk of tooth wear and periodontal issues.

Furthermore, an upright positioning of the lower incisors supports the overall stability of the dental arch. It reduces the likelihood of dental crowding as the individual grows, allowing natural growth patterns to occur without undue interference. Additionally, it contributes to facial aesthetics and function by ensuring that the bite remains harmonious and contributes to a pleasing smile.

The other options, such as externally rotated, recessed, or ankylosed, would lead to malocclusion or functional impairments, ultimately compromising both dental health and aesthetics.