kevin bowes lost several teeth , had four ` avoidable ' root canal treatments and five ` avoidable ' crowns fitted by dr nicholas crees over a decade .
second dentists said he will need extensive treatment to repair decay .
awarded £ 30,000 out-of-court but dr crees has not admitted liability .
mr bowes , said : ` i was devastated . i had no idea my teeth were so bad '