A.
Dentinogenesis imperfecta comes in type I, type II and type III.
It is a rare and genetic disorder that affects 1 in 6000-8000 people.
It usually ocurs in people who sufer from osteogenesis imperfecta (brittle bone disease)and is often characterised by the following tooth abnormalities:
– blue/grey teeth
– amber coloured teeth
– bulbous crowns of the teeth
– absent roots/root canals
– thin enamel
– weaker teeth that are prone to rapid wear and breakage- and even tooth loss.

Type II dentinogenesis imperfecta is often characterised by extensive wear that exposes the pulp of the teeth

If you still have some teeth present and would like to aestheticall make them look nicer, then there are options such as whitenign that can be tried- but isnt always guaranteed to improve your smile- or crowns.
If you have lost some teeth as a result from this disorder, then implants may be the way forward for yourself.
Cost of implants vary- and can range from £2000 per tooth to £20,000 for a full arch of implants with bridggework.
I would definately recommend that you seek advice from your dentist in regards to your issues where you can stress your concerns and so that you can understand a little more about what it is that you really need/want.
Hope this has helped.