The indication for the use of lingual plate major connector include.. When the lingual frenum is high or when there is a shallow lingual sulcus

The indication for the use of lingual plate major connector include:

a- For the purpose of retention.

b- When the lingual frenum is high or when there is a shallow lingual sulcus.

c- To prevent the movement of mandibular anterior teeth.

d- All of the above.***