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How Old Is My Black Lab/ Blue Heeler Puppy With Twenty-Six Baby Teeth?

Question by : How Old Is My Black Lab/ Blue Heeler Puppy With Twenty-Six Baby Teeth?

I got a free puppy at an auction this past Thursday night. The girl I got him from had no idea how old he was. He was tick-ridden and flea-ridden, and as I found out today, worm-ridden. He just had his de-wormer today, too. 🙂 Anyway, I asked her if he had had his shot(s). She said yes, she was OBVIOUSLEY lieng because he is WAAAYYY TOO young to have had ALL of his shots, with only twenty-six teeth. They also said the puppies (which were his other brothers or sisters) she was giving away were “potty-trained.” (Which was a lie! lol.) So he has twenty-six puppy teeth and the website I looked at said if they have 28 baby teeth they are 2-3 months old. So how old is he with 26 baby teeth? THANKS in advance!!! – McKenzie McCaleb P.S. Cowboy (the puppy) says thanks too!!! 😀

Best answer:

Answer by James
Your vet could tell you better than random people on the internet could. You’re taking him to a vet, yes?

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  • Probably about a month old. It would have been very irresponsible for the girl to take him away any earlier from the mother. He looks about 6-8 weeks. (prime time to give them away) I will research it and call you! BTW, is your mom letting you keep him?


    Puppies, like human babies, are born without teeth. Only the gum surface is visible. This allows them to nurse without hurting the mother. When they reach 30 days of age, their deciduous or temporary (baby) teeth start to break through the gums. This is referred to as “erupting.” Puppies have a total of 28 deciduous teeth by the time they reach 45 days of age. This is a good time to give puppies plenty of chew toys.
    As time goes by, these teeth are replaced by permanent teeth. The canine tooth fairy works somewhat faster than her human counterpart – most breeds show permanent teeth at 6 to 7 months of age.
    Eruption of the permanent teeth is as follows:
    Central: 2-5 months
    Intermediate: 2-5 months
    Corner: 4-5 months

    5 months


    First: 4-5 months
    Second: 6 months
    Third: 6 months
    Fourth: 4-5 months


    First: 5-6 months
    Second: 6-7 months
    Third: 6-7 months

    The Formulas
    Following a complicated formula (which, for the more adventurous is included below), veterinarians can estimate the age of a puppy by the number of permanent versus baby teeth.
    Puppies will have a total of 28 baby teeth by the time they reach 45 days of age. The dental formula for baby teeth lists the number of each type of tooth and whether that tooth is on the top jaw or lower jaw. The puppy dental formula is 2 (I 3/3 C1/1 PM 3/3)= 28 teeth.
    The I in the formula stands for incisor. The C stands for canine and PM stands for premolars. There are no baby molars. The top number is the number of teeth in the upper jaw. The bottom number is the number of teeth in the lower jaw. The dental formula lists the teeth only on 1/2 of the mouth. The right and left side are the same. This is the reason for the number 2 before the formula.
    After the baby teeth are lost, permanent teeth erupt. The permanent dental formula for dogs is 2(I 3/3 C1/1 PM 4/4 M2/3) = 42 teeth.
    The letters stand for incisor, canine, premolar and molar. Most breeds will show permanent teeth between the ages of 6 to 7 months of age. Larger breeds have a tendency for early eruptions compared to the smaller breeds.
    So, if a puppy has his permanent canines and first molar we can estimate his age to be 5 months.


    Central: 2-5 months
    Intermediate: 2-5 months
    Corner: 4-5 months

    Scroll down on this link to “Teething” to see a diagram of where the teeth are:…

    Here are some more helpful links:……

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