What is the best way to microetch a fractured porcelain crown prior to porcelain repair?

The ability to micro-etch teeth and restorations is an essential component of today’s dental practices. However, some micro-etching units are large and cumbersome to use. One new product that is perfect for intraoral use is the EtchMaster (Groman Dental).This product  has a small, single-use air abrasion tip. It comes with several types of abrasive materials and grits for different etching indications. It is perfect for dentist’s restorative needs, as well as for hygiene removal of stubborn stains. This is a must-have product for intraoral micro-etching.