Hello dear Please be aware See proper oral care can prevent natural tooth from   permanent loss.presence of caries weakens the tooth for which restoration is done.this is followed by retention which requires excess tooth cutting.for further details you can consult me Thanks

Greetings, Sir if your old filling comes out and you need to replace it, then your dentist will check if there is cavitation happened beneth the old filling then we need to remove the cavities because if not it will progress further and damage the tooth If there is no cavities beneth the old filling you just remove the old filling and replace it. Hope this will help

Dear Patient When dental filling is done only infected tooth is drilled and filled. If you maintain your dental hygiene and have regular check -up, not much tooth has to be drilled. So  if you take precautions there will be no tooth going for implant. As far as veneers and caps are concerned , they also need drilling in another pattern, just to add, they are not used to treat dental cavity. Hope this helps you