Amelogenesis imperfecta is a disorder of________?

Vascular involvement and thrombosis is seen in________?

All of the following is the extraglandular manifestation of primary sjogren’s syndrome except________?

A 40 year old woman report with the complaint of burning sensation in the mouth. Clinical examination reveals lesions consisting of radiating white striations in a retiform arrangement affecting buccal mucosa, tongue, lips & gingiva bilaterally. An incisional biopsy is suggestive of lichen planus. The following are different clinical forms of lichen planus except:

Dental caries is associated with________?

Bifid ribs, multiple radiolucent lesions of the jaws multiple basal cell nevi and flax cerebri calcification are found in:________?