Does 5000 ppm toothpaste like colgate duraphat 5000 works effectively against cavity to prevent it? is it available in asian countries? is it only prescribed by dentist? if it's used now....in future will other paste be much effective ?

Good oral hygiene prevents cavities, a healthy diet, a healthy lifestyle, all help prevent cavities. Toothpastes are a substance that contains ingredients that help maintain sound enamel tooth structure. The brushing removes debris, and stains and keeps the gums healthy. Most toothpastes, if not all contain these ingredients. Any toothpaste you can get from a pharmacy, OTC is effective.

PLEASE do not self medicate. Any and all medications available only by prescription require a doctor's supervision, and for good reason. Don't go it alone. You will only do more harm than good..