To help them chew hard food.
Guinea pigs are born with fur, eyes open and teeth.
Guinea Pigs chew on things in their enclosure because it's their own way of keeping their teeth in good condition and to wear them down so they don't become overgrown. Guinea Pigs teeth are "Open Rooted", this means that they are forever growing. I suggest that you buy a special "chewing" block. Whether it be a small piece of untreated wood, or a solid vitamin block, it's a good way to make sure you don't have an unexpected need to visit the Vet to have their teeth trimmed.
Guinea Pigs are Rodents, and their teeth are always growing. Provide them with materials to gnaw on, and they will take care of their own teeth.
They need teeth to eat.
Dental care for Guinea Pigs is quite often required, as Guinea Pigs' teeth are "Open-Rooted". This means that they are continually growing. Sometimes a Guinea Pigs' teeth become overgrown, and their owner's need to take their pig to the vet to have them trimmed back to normal size. This is why you should always provide adequate chewing items in you Guinea Pigs' enclosure. A simple block of untreated wood does the job just fine. Although, your Guinea Pig's may not know what to do with it at first, but putting it in a place that they rest is the best, as it may attract their attention more than placing it somewhere else where it would go unnoticed. Hope this helped :)
No.
they just do, its natural. they are one of a kind. they're special.
YES
Take it to the guinea pig dentist
Guinea Pigs' teeth are "Open Rooted". This means that they are continuously growing. If a Guinea Pigs' teeth are knocked out, they will grow back in about a weeks time, give or take a couple of days. Although it's best to watch their teeth as they grow back, at least once or twice a day. This is just to see if they are growing back correctly and not out of line. If the Guinea Pigs' teeth are not growing back right, I would advise you to seek veterinary care. Not bothering to check and seek medical care for your Guinea Pig if it is not in tip-top shape, can be very uncomfortable for the Guinea Pig and IS a type of animal cruelty, so please find help if things aren't going smoothly. But, by my guess, your Guinea Pig will be fine in no time :)
Their teeth are about the same size as a rats.
The size. A baby guinea pig will be very small. When they are born, they have all their fur, eyes open, teeth and ready to run.