Adult teeth start to form at 4 months of age.. Puppies are born without teeth and get their puppy teeth between the 6 and 8th week of life and grow 28 teeth (called deciduous or baby teeth). The first teeth to emerge are the incisors at 2 to 3 weeks followed by the canines and the premolars. Puppies do not have molars.
adjective, stricter, strictest. 1. characterized by or acting in close conformity to requirements or principles: a strict observance of rituals. 2. stringent or exacting in or in enforcing rules, requirements, obligations, etc.: strict laws; a strict judge. 3. closely or rigorously enforced or maintained: strict silence.
rigorous adjective (CAREFUL) âº approving careful to look at or consider every part of something to make certain it is correct or safe: rigorous testing/checking/methods.