The 4 type of brushes for dogs are the following:
Slicker brushes have fine, short wires close together on a flat surface. They are used on medium or long haired or curly-haired dogs. It is important to remember to always be gentle when using a slicker brush. The fine, tightly-spaced wires can cause your dog discomfort if too much pressure is used.
This is used to penetrate into a dog’s thick coat and remove tangles and dead undercoat near the dog’s skin. They are often shaped like a shaving razor and feature one or two rows of tightly-spaced pins. Like a razor, they are intended to be used with minimal pressure. Rakes should be used on thick-haired dogs especially if they are the type of dogs that usually shreds.
This is for short-haired, smooth-coated dogs that shed frequently. Their clusters of tightly-packed natural bristles will remove loose hair and stimulate the skin.
Pin brushes are like the brushes we humans use. They are usually oval-shaped, with a loosely-arranged set of flexible wires with pins on top. Pin brushes are the most commonly used type of brush, but often the least useful in terms of grooming or detangling. They will pick up loose hair before it is shed onto your furniture, or finish and fluff a well-brushed coat, but provide little benefit to your pet.