hi Leon, i am glad you are getting the answers you need, i will try to answer your final questions :
1: Whether you opt for traditional style braces or the invisible braces both types of treatment will correct your condition and also straighten the teeth. in addition if you opted for the invisible braces you can simultaneously whiten your teeth.
2:Veneers are generally made from a feldspatic porcelain, which in context to similarity to natural teeth is a very similar material. the average veneers lifespan being 10 to 15 years.
3: braces treatments can be anything from £3000 to £5000 dependant on the type of braces you chose and the dentist which carries out the treatment.
Veneers are also very variant on price. they generally start at £500 per tooth and can range upto £1000 per tooth. again this is dependant on the type of veneer being done and the clinic at which it is done. i personally specialise in CEREC veneers which enables me to constuct the veneer on the same day as preparing the tooth and so being able to fit the veneer on the same day so, not needing temporaries. But remember not good cosmetic clinics will offer payment plans to spread the costs.
4:To get a consultation with your closest cosmetic dentist, if you reply back and give me an idea of where you live i could recommend one for you. you do not have to be referred by your own generally dentist.
hope all this is helpful. If you require any further asistance dont hesitate to reply back.
Dr Kailesh Solanki
www.kissdental.co.uk
Exclusive london and manchester dental clinic.