Which factor does not need to be considered when setting denture teeth?

When setting denture teeth, the factor that does not need to be considered is tongue space. The other factors—arch form, facial symmetry, and occlusal plane—play critical roles in ensuring that the dentures not only fit well but also function effectively and provide the patient with a natural appearance.

Arch form refers to the shape of the dental arch, which is essential for determining how the teeth are arranged. The arch form helps in aligning the teeth correctly within the confines of the patient's mouth, ensuring an appropriate fit and proper occlusion.

Facial symmetry is important because it contributes to the aesthetics of the dentures. Natural teeth are arranged in a way that complements the facial features, so considering symmetry helps in achieving a more pleasing and balanced appearance for the patient.

The occlusal plane involves aligning the upper and lower teeth in a way that allows for proper bite and function during chewing. It is crucial for ensuring that there is no undue stress on the jaw joints and that the patient can comfortably use the dentures.

In contrast, tongue space refers to the area within the mouth where the tongue can move freely. While it's important for overall mouth function and comfort, it does not directly influence the arrangement of the denture teeth themselves. As such, it is