Using this toothbrush is easy. First, choose the right size according to your pet's weight. Then, put a small amount of pet - friendly toothpaste on the brush head. Hold the toothbrush by the ergonomic handle and use the long neck to reach the back teeth. Gently move the brush in circular motions to clean the teeth and massage the gums. Use the tongue cleaner to clean the tongue. When using the Bite - block, insert it gently into your pet's mouth to protect your fingers. Remember to use pet - specific toothpaste, not human toothpaste. After each use, rinse the toothbrush thoroughly with water and let it dry in a well - ventilated place. Replace the toothbrush regularly to ensure effective cleaning.