Australia

Hi Gurdeep,
To be a dentist, you must obtain the necessary qualification and clear the licensing examination. Admission to an undergraduate degree is made on the basis of academic merit. As an international student you must also take the IELTS or TOEFL.
Australia has nine Dental schools stated below. Please go through the admission requirements pages of the universities for university specific requirements and admission process.
1. University of Sydney.
2. Charles Sturt University.
3. Griffith University.
4. University of Queensland.
5. James Cook University.
6. University of Adelaide.
7. La Trobe University.
8. University of Melbourne.
9. University of Western Australia.
After completing your Bachelor's degree, you may look for a two-year graduate Diploma of dentistry program or equivalent, which will enable you to apply for registration with the Dental Board of Australia (and equivalent New Zealand authorities). For additional requirements and updates please keep checking the Dental Board of Australia. As of now focus on the application towards a Bachelor's degree.
All the best.

You can go to Australia after applying under ELICOS because to study in Australia after 12th you need 5.5 bands with not less than 5 in each module. Since, you have 4.5 in one module you have 2 options i.e. either apply under ELICOS or else give the IELTS paper again. In ELICOS, besides studying your desire course, you have to study English in Australia to fulfill the language deficiency. The fee for studying English depends on college to college but don't expect it to be below 2 lacs. If you want to go for it, contact the agent. My cousin also deals in it. So, if you want I will give you the number. Her institute is in Amritsar.
But, my advice for you would be to reappear for IELTS again in spite of wasting your money and time in studying English there. Rest depends on you.