to move with a continual change of place among the particles or parts, as a fluid; to change place or circulate, as a liquid; as, rivers flow from springs and lakes; tears flow from the eyes Flow (verb)
Teething begins in puppies at about 3Â½ to 4 months of age, when the primary incisors begin to be replaced by permanent incisors. By the time the average puppy reaches 6-7 months of age, all 42 adult teeth will have erupted.
The first deciduous teeth to come in are the canine teeth and incisors, followed by the premolars and molars. Puppies generally start to lose the deciduous teeth at age 2-3 months of age. As with the deciduous teeth, the incisors are the first permanent teeth to erupt. They are followed by the canines, molars, and premolars.