Dogs should use grinding sticks as early as they have teeth. When puppies are born, they have no teeth. Generally, teeth begin to appear about 20 days after birth. Dogs feel uncomfortable in their mouths when they have teeth, and they bite to relieve the discomfort. Just like a child likes to bite when he has teeth. At this time, you can prepare some grinding sticks for the puppies to use, and don't let them chew other things to cause harm.
：
Grinding bar helps deciduous teeth to erupt, corrects nipple biting, and trains baby's oral chewing function in time.
The eruption of baby deciduous teeth is mostly between 4- 10 months, and as late as 12 months. Usually a one-year-old child will have 6-8 teeth. During the eruption of deciduous teeth, the baby's saliva increases and drools, and he likes to bite hard things. He also puts his fingers in his mouth or bites his mother's nipples.
These phenomena are all manifestations of abnormal sensation caused by the compression of gingival nerves before the eruption of deciduous teeth, suggesting that young deciduous teeth are trying to overcome the coverage of gums, so during this time, we can supplement some molar biscuits to help the deciduous teeth erupt, correct the nipple biting phenomenon, and train the baby's oral chewing function in time.
References:
Grinding rod Baidu encyclopedia