Is it possible for me to do the Dental Hygiene and Therapy course and then do Dentisry, will this be easier way to get into university, as I know to do Dentistry it is very competitive, however I need to know whether it will be possible, otherwise there will be no point in doing the Dental Hygiene and Therapy course.

Taking courses in relation to what you want to be in your career is definitely helpful, but it won't be a guarantee. It will give you an edge over other competitors though.

Doing well in your pre-dent courses, as well as on the DATs is important. Also, to better your dexterity, try taking courses such as sculpting.