If by "Dental Technology" you mean like a dental lab tech, do that. The hand skills you will gain there fabricating dentures and crowns and pouring models etc. will be way more useful during your pre-clinical classes than dental assisting. You can shadow a doctor and get similar experience to assisting, no need to spend the extra units in a certificate program to learn how to suction spit and mix alginate.
As a dentist you will not be making crowns and dentures. You will send them to a lab where the tech can do it. However, in most dental schools, you will have enormous amonts of pre-clinical classes waxing crowns and dentures and pouring models, and you may need to do these things for your clinic patients too. The advantage is this - if you can take 1 hour to wax up that crown whereas it takes your classmate 3 hours, that is 2 extra hours you get to go home and study Gross Anatomy, because all classes will hit you at once.