Retreatment of root canal

21/female reported to me for prosthetic rehab. Not sure about the diagnosis. She is being treated at a dental college since 8yrs. On clinical examination the teeth look as if they are totally attritted upto gingival level. She has One or two posterior contacts to maintain VD. Her VDR minus VDO is 2mm. Extra oral examination shows very less lower facial height. Patient is asking for any fixed option if possible. She is a teacher.. Please post the possible treatment options Sorry could not get extra and intraoral pictures

12 yrs old girl having swelling of right jaws since 10 months . radiography shows impacted canine and premolars .

A 23 yr old male patient having crowding in Maxillary central incisors. What can be preferred treatment option. . ?

Male patient 40 years. All teeth r mobile. Except upper six.central to canine. Only 24 days of stay in india. Please suggest line of treatment. No h/o Any medical condition

Guys This is case of 15 yrs old boy. Mentally challenged, undergoing some speech therapy . 11,21 are fractured and roots r Rct treated. Problem is no proper overjet and overbite to place implants or even posts. So I invite all the manipulations Techniques, coz really wanna help this fellow But I m confused.