How do I get a Dental handpiece manufacturer?

For the first time... Products must be established and proven to be effective... Then the product must be sold. So the best way to do that is to show the product to your prospective customer, that's the dentist or the average consumer. And get feedback from some customers. Manufacturers want to see products sold before they are willing to waste time on their products. Also look at trade shows to showcase your products. Manufacturers represent these activities in search of potential products.