Yes, it's possible that it may be used both as a supplement in some situations and a primary plan. Since most dental insurance plans don't include braces, dental implants, cosmetic dentistry, etc., dental discount plans can provide you a reduction in the high cost of these procedures. Additionally, dental insurance plans have annual limits (usually of $1,000 to $1,500 a year). A dental discount plan is there for you and your family when your dental insurance reaches its cap and you need extra help before the end of the year. Keep in mind that until you exhaust your dental insurance annual limit, some dental offices may not permit you to use both at the same time - unless the procedure is not included with your dental insurance.