At what age can a male dog get neutered?

What is the Best Age to Spay or Neuter My Pet?

Best Answer

A male dog can be neutered any time after eight weeks of age.

A few years ago, most veterinarians advised waiting until puberty hit at about six months, and some still make that recommendation.

Talk to your veterinarian about what's best for your dog.

When is the best time to spay or neuter your dog? Vlog 62

Previous QuestionHow much does it cost to get a dog spayed UK?
Next QuestionHow long should I walk my golden retriever puppy?

Related Questions

At what age should a male cat be neutered?

Traditionally male and female cats have often been neutered at six months of age, but this is after many cats reach sexual maturity and not based on any scientific rationale. For social, health and population control reasons, it is now recommended neutering should routinely take place at around 4 months of age.

At what age should male dogs be neutered?

For dogs: While the traditional age for neutering is six to nine months, puppies as young as eight weeks old can be neutered as long as they're healthy.

At what age can male dogs breed?

Small breeds tend to mature faster than large breeds. On average, however, males become fertile after six months of age and reach full sexual maturity by 12 to 15 months. Healthy stud dogs may remain sexually active and fertile to old age. Adult males are able to mate at any time.

When To Neuter Your Dog

What age should you neuter a male dog?

A male dog can be neutered any time after eight weeks of age. A few years ago, most veterinarians advised waiting until puberty hit at about six months, and some still make that recommendation. Talk to your veterinarian about what's best for your dog.

What age is best to neuter a male dog?

For dogs: While the traditional age for neutering is six to nine months, puppies as young as eight weeks old can be neutered as long as they're healthy.

What is the best age to neuter a male dog?

For dogs: While the traditional age for neutering is six to nine months, puppies as young as eight weeks old can be neutered as long as they're healthy.

At what age can a dog be neutered UK?

Most vets will neuter dogs of either sex from the age of about four months, although it can be done at any age. If you need any advice on when to neuter your dog, contact your vet.

At what age can a male dog breed?

Small breeds tend to mature faster than large breeds. On average, however, males become fertile after six months of age and reach full sexual maturity by 12 to 15 months. Healthy stud dogs may remain sexually active and fertile to old age. Adult males are able to mate at any time.

Should I get my dog neutered?

At what age can you breed a male dog?

Small breeds tend to mature faster than large breeds. On average, however, males become fertile after six months of age and reach full sexual maturity by 12 to 15 months. Healthy stud dogs may remain sexually active and fertile to old age. Adult males are able to mate at any time.

At what age can a male dog have puppies?

Small breeds tend to mature faster than large breeds. On average, however, males become fertile after six months of age and reach full sexual maturity by 12 to 15 months. Healthy stud dogs may remain sexually active and fertile to old age. Adult males are able to mate at any time.

At what age can a male dog mate?

Small breeds tend to mature faster than large breeds. On average, however, males become fertile after six months of age and reach full sexual maturity by 12 to 15 months. Healthy stud dogs may remain sexually active and fertile to old age. Adult males are able to mate at any time.

What is the best age to neuter a male Labrador?

Veterinarians say male dogs can be neutered as early as they turn 6 to 9 months old. For big dogs, such as Labradors, veterinarians recommend waiting until the dog reaches 2 years of age or until he is fully grown.

At what age can a male Chihuahua get a dog pregnant?

A female puppy can get pregnant at 6 months old and can have puppies well into old age, depending on her breed. Some dogs stop being able to get pregnant after 3 years old, for some dogs, it's 5 years old, and other dogs can continue to get pregnant even older than that.

Should you Spay or Neuter Your Dog?

What age can a male dog get a female pregnant?

Small breeds tend to mature faster than large breeds. On average, however, males become fertile after six months of age and reach full sexual maturity by 12 to 15 months. Healthy stud dogs may remain sexually active and fertile to old age. Adult males are able to mate at any time.

At what age can a male French bulldog breed?

What age can you start breeding french bulldogs. I have a male and would like to breed him. Male dogs usually hit puberty between 6-12 months of age. AKC will not register pups to males who were less than 7 months old at the time of breeding.

At what age can a male Maltese breed?

Per the AKC, a dam must be at least 8 months old. Still, this is very young for all reasons listed above. Recommended age: It is generally recommended to wait for until a Maltese has had her 2nd or 3rd heat cycle and is at a minimum age of 2 years old.

At what age can a male Doberman breed?

Like female Doberman pinschers, many males of the breed stop gaining height once they're between 7 and 12 months old.

At what age can a male standard poodle breed?

Small breeds tend to mature faster than large breeds. On average, however, males become fertile after six months of age and reach full sexual maturity by 12 to 15 months. Healthy stud dogs may remain sexually active and fertile to old age. Adult males are able to mate at any time.

At what age can a male Pomeranian breed?

Age: How old should your Pomeranian be when you breed him or her? A female should be at least 2 years old and have gone through a heat cycle. Pomeranian females should be retired from breeding when she is 7 years old maximum. She can continue to enter heat until she is 12 years old (and sometimes for her entire life).

At what age do male dogs hump?

Puppies don't reach puberty until they're six to eight months old, so humping is non-sexual play behaviour. It's one of the first ways a puppy discovers its own strength and social standing. Because of this, it can continue into adulthood, even if your dog is female and has been desexed.

What age can a male puppy get a female pregnant?

Small breeds tend to mature faster than large breeds. On average, however, males become fertile after six months of age and reach full sexual maturity by 12 to 15 months. Healthy stud dogs may remain sexually active and fertile to old age. Adult males are able to mate at any time.

Should I get a male dog neutered?

Though these procedures can be done on puppies as young as a few months old, dog owners should consult with their veterinarian to determine the best age to spay or neuter their pet. Many recommend for female puppies to be spayed before their first heat, which can occur as early as 5 months of age.

At what age should a dog be neutered?

A male dog can be neutered any time after eight weeks of age. A few years ago, most veterinarians advised waiting until puberty hit at about six months, and some still make that recommendation. Talk to your veterinarian about what's best for your dog.

At what age should you neuter a large breed dog?

Medium breeds should wait until they are six to eight months old. The problems noted in the studies apply only to large breed dogs. For large and giant breed dogs, it is now recommended to wait until they are fully mature which would be between twelve to eighteen months of age.

What are the benefits of getting a male dog neutered?

Medical benefits: Castration eliminates the possibility of testicular cancer and greatly reduces the chance of prostate disease, two extremely common and serious problems of older male dogs.

At what age is a male dog fertile?

On average, however, males become fertile after six months of age and reach full sexual maturity by 12 to 15 months. Healthy stud dogs may remain sexually active and fertile to old age. Adult males are able to mate at any time.

What age can you get a male puppy fixed?

A male dog can be neutered any time after eight weeks of age. A few years ago, most veterinarians advised waiting until puberty hit at about six months, and some still make that recommendation. Talk to your veterinarian about what's best for your dog.

What age can a male dog breed?

Small breeds tend to mature faster than large breeds. On average, however, males become fertile after six months of age and reach full sexual maturity by 12 to 15 months. Healthy stud dogs may remain sexually active and fertile to old age. Adult males are able to mate at any time.

At what age should a puppy be neutered?

A male dog can be neutered any time after eight weeks of age. A few years ago, most veterinarians advised waiting until puberty hit at about six months, and some still make that recommendation. Talk to your veterinarian about what's best for your dog.

At what age should you neuter a Great Dane?

With regular dog walks (thanks to Tailster ;) )and exercise, they'll stay slim and trim. Don't worry about age, the vet will ensure that your Great Dane isn't too young to be spayed or neutered. Female Great Danes can reproduce as young as four months old, and male Great Danes can as of six months.

At what age does a male puppy's testicles drop?

The testes normally descend into the scrotum while an animal is very young. For dogs, the descent to the final scrotal position is expected to be complete by the time the puppy is two months old. It may occur later in some breeds, but rarely after six months.

Can you neuter a rabbit at any age?

Females can be spayed as soon as they sexually mature, usually around 4 months of age, but many veterinarians prefer to wait until they are 6 months old, as surgery is riskier on a younger rabbit. Males can be neutered as soon as the testicles descend, usually around 8-12 weeks.

At what age can dogs get pregnant?

Reproductive Season, Heat, Oestrus, And Pregnancy Tests. Puberty or sexual maturity in the female dog usually occurs around six months of age. The smaller breeds tend to go into oestrus or "heat" earlier and some females can have their first "heat" cycle as early as four months of age.

At what age should a Yorkie be neutered?

Ideal Age: Normally, spaying and neutering of yorkie should be done before they turn one year old. For female yorkies, it is recommended to spay them before their 1st heat; around 3 to 4 months old. For male yorkies, neutering is usually done before they hit puberty; around 4 to 6 months old.

At what age can dogs get dementia?

Most dogs, regardless of breed, experience some form of CCD as they age. In a study conducted by the Behavior Clinic at the University of California at Davis, researchers found that 28 percent of dogs aged 11-12 years, and 68 percent of dogs aged 15-16 years, showed one or more signs of cognitive impairment.

At what age is a male puppy fertile?

On average, however, males become fertile after six months of age and reach full sexual maturity by 12 to 15 months. Healthy stud dogs may remain sexually active and fertile to old age. Adult males are able to mate at any time.

What is a neutered male dog called?

"Neutering" is often used incorrectly to refer only to male animals, but the term actually applies to both sexes. The male-specific term is castration, while spaying is usually reserved for female animals. Colloquially, both terms are often referred to as fixing. In male horses, castrating is referred to as gelding.

What age can a male puppy reproduce?

Small breeds tend to mature faster than large breeds. On average, however, males become fertile after six months of age and reach full sexual maturity by 12 to 15 months. Healthy stud dogs may remain sexually active and fertile to old age. Adult males are able to mate at any time.

Should I get my male dog neutered?

Medical benefits: Castration eliminates the possibility of testicular cancer and greatly reduces the chance of prostate disease, two extremely common and serious problems of older male dogs. Many older dogs that are not neutered will develop prostate disease or testicular tumors if they survive to an old enough age.

What does neutering a male dog do?

Spaying or neutering can lead to a reduction in certain health risks for both female and male dogs. Neutering a male dog prevents testicular cancer and reduces the risk of other problems, such as prostate disease. A neutered male dog might also have less desire to roam. May help with certain behavior issues.

At what age should I neuter my dog?

For dogs: While the traditional age for neutering is six to nine months, puppies as young as eight weeks old can be neutered as long as they're healthy.

Can I neuter my dog at any age?

For dogs: While the traditional age for neutering is six to nine months, puppies as young as eight weeks old can be neutered as long as they're healthy. It's possible to spay a female cat while she's in heat.

Do male dogs get spayed or neutered?

Spaying a female dog also eliminates the messiness associated with the heat cycle. Neutering of male dogs and cats can prevent certain undesirable sexual behaviors, such as urine marking, humping, male aggression and the urge to roam.

At what age can a puppy get a bath?

When Is The Right Time For A Puppy To Take The First Bath? Generally, newborn pups don't need to be bathed up until they are about three months old, and most canine shampoos are for dogs which are at least 3 months old, however, you can still bathe younger puppies if they are visibly dirty or smelly.

At what age can a puppy get a rabies shot?

Puppy Vaccination Schedule Puppy's AgeRecommended Vaccinations10 — 12 weeksDHPP (vaccines for distemper, adenovirus [hepatitis], parainfluenza, and parvovirus)12 — 24 weeksRabies14 — 16 weeksDHPP12 — 16 monthsRabies, DHPP3 autres lignes • 12 mars 2019

At what age do male dogs go into heat?

Although six months old is the average age of a dog's first heat, this can vary widely. Some dogs can go into heat as young as four months, while larger breeds may be as old as two years before their first heat. Responsible breeders never breed a dog on her first or even her second heat.

At what age do male dogs become sexually active?

Male dogs do not go into heat like females. They are sexually active year-round, but they are most fertile after 12-to-15 months of age, once they are fully physically mature. Males can start to mark as they become sexually mature, which many owners consider an undesirable trait.

At what age do male dogs start to hump?

Why do dogs hump? Puppies don't reach puberty until they're six to eight months old, so humping is non-sexual play behaviour. It's one of the first ways a puppy discovers its own strength and social standing. Because of this, it can continue into adulthood, even if your dog is female and has been desexed.

How much is it to get a male dog neutered?

The cost of dog neutering at the Humane Society or a low-cost vet clinic will typically range from $50 to $125 depending on the size and age of your pet. Some animal hospitals may charge up to $250 to neuter a male dog. Spaying a female dog is a more complicated procedure which will usually cost between $50 to $175.

Will getting a male dog neutered stop him from marking?

Spay or neuter your dog as soon as possible. Spaying or neutering your dog should reduce urine-marking and may stop it altogether. But if they have been marking for a long time, a pattern may already be established. Because it has become a learned behavior, spaying or neutering alone won't solve the problem.

When should you get a male dog neutered?

For dogs: While the traditional age for neutering is six to nine months, puppies as young as eight weeks old can be neutered as long as they're healthy.

What age can you get a tattoo at?

Tattooing of a Minor - Establishes that it is illegal to tattoo anyone under age 18. Body Piercing of a Minor - Requires prior written consent of a minor's parent or legal guardian to perform body piercing on anyone under age 18.

At what age can a Shih Tzu get pregnant?

It generally happens between the young ages of 4 and 7 months old. It does surprise many owners to know that their female will still be a puppy when she first enters a cycle. If you have an un-sprayed female Shih Tzu and she has not entered her first heat by the one year mark, you will want to alert the veterinarian.

At what age can a Jack Russell get pregnant?

As soon as a puppy is sexually mature, she's capable of getting pregnant and producing a litter of her own youngsters. Female puppies can, in some cases, get pregnant at ages as young as 5 months. This age, however, is on the early side.

At what age can a pug get pregnant?

4 to 6 months - The Pug dog enters puberty at this age. Females will have their first heat if not spayed. Males will have viable sperm. Though technically a female can become pregnant at this young age, breeding is recommended at the age of 1 year old or older.

What age is a male dog fertile?

The age at which dogs reach sexual maturity depends to a large extent on their breed. Small breeds tend to mature faster than large breeds. On average, however, males become fertile after six months of age and reach full sexual maturity by 12 to 15 months.

At what age can a puppy get their nails clipped?

The truth is, nail trimming isn't difficult if you know how. The first piece of advice is this: Begin early. Don't wait until your puppy is 6 months old to trim his nails. Begin trimming the first week it comes home, even if there isn't much to trim, and trim the nails weekly to get the pup accustomed to this routine.

At what age can a pitbull get pregnant?

Dogs can get pregnant at an early age! A female puppy can get pregnant at 6 months old and can have puppies well into old age, depending on her breed. Some dogs stop being able to get pregnant after 3 years old, for some dogs, it's 5 years old, and other dogs can continue to get pregnant even older than that.

At what age can a puppy get rabies?

Puppies and kittens should receive their first rabies vaccination at 12 weeks of age. Pets must be vaccinated again in one year, and then a three-year rabies vaccine is generally administered during the rest of your pet's life.

At what age can a female rat get pregnant?

Signs That a Female Rat Is Pregnant. Rats can be sexually mature before six weeks of age, so if your female rat was not separated at around five weeks old from all male rats, including family members, she may be pregnant.

Should I get my male rottweiler neutered?

Male and female dogs that were neutered or spayed before 1 year of age had a two to three times higher risk of developing bone cancer than sexually intact dogs. "I now wait until my Rottweilers are fully grown before considering spay or neuter surgeries.

What age can a male dog sire puppies?

Half of male dogs will display mounting behavior by 5 months of age, and may become able to sire a litter around that age. Note that some male dogs may be able to sire a litter before 5 months of age - 6 months is the average age when a male dog can breed.

At what age do male puppies become sexually active?

Male dogs do not go into heat like females. They are sexually active year-round, but they are most fertile after 12-to-15 months of age, once they are fully physically mature. Males can start to mark as they become sexually mature, which many owners consider an undesirable trait.

What age do male dogs get their balls?

The testes normally descend into the scrotum while an animal is very young. For dogs, the descent to the final scrotal position is expected to be complete by the time the puppy is two months old. It may occur later in some breeds, but rarely after six months.

Can a male dog get a female dog pregnant after being neutered?

Depending on how long ago your dog was neutered, yes he can still breed a female after neutering. However, even if he has no sperm, a neutered male dog can still get an erection and theoretically tie with a female dog. This will not result in pregnancy if it has been more than a month since he was neutered.

At what age can a dog mate?

Small breeds tend to mature faster than large breeds. On average, however, males become fertile after six months of age and reach full sexual maturity by 12 to 15 months. Healthy stud dogs may remain sexually active and fertile to old age. Adult males are able to mate at any time.

At what age do dogs get dementia?

Most dogs, regardless of breed, experience some form of CCD as they age. In a study conducted by the Behavior Clinic at the University of California at Davis, researchers found that 28 percent of dogs aged 11-12 years, and 68 percent of dogs aged 15-16 years, showed one or more signs of cognitive impairment.

At what age do dogs get arthritis?

According to the Arthritis Foundation, approximately 20% of all adult dogs have arthritis, or about 1 in 5. If, however, your dog is more than 7 years of age, there's a 65% chance he's suffering from the disease.

At what age dogs get rabies?

Puppy Vaccination Schedule Puppy's AgeRecommended Vaccinations10 — 12 weeksDHPP (vaccines for distemper, adenovirus [hepatitis], parainfluenza, and parvovirus)12 — 24 weeksRabies14 — 16 weeksDHPP12 — 16 monthsRabies, DHPP3 weitere Zeilen • 12.03.2019

Can dogs get parvo at any age?

Dogs of any age can get parvo, depending on their vaccination history, but some dogs are more susceptible than others: Puppies 6 to 20 weeks old are most susceptible (it takes some time for the vaccination series to become fully protective).

At what age do dogs get lymphoma?

Dogs of any age can develop lymphoma as well, but it mainly affects middle aged to older dogs, with a median age of six to nine years.

At what age do dogs get aggressive?

Knowledge of the early growth periods of dogs helps to understand canine aggression. Puppies have a critical need for socialization from three weeks of age, when they can see and hear, until 14 weeks of age.

At what age do dogs get cancer?

The commonly treated cancers in adult dogs and cats include lymphoma, osteosarcoma and mast cell tumors. Research shows the average age of cats with lymphoma is 9 to 12 years and the average age of dogs with the same disease is 6 to 9 years.

Can male dogs spray if neutered?

Although all dogs can spray, most situations where this problem occurs is when a dog has not been spayed or neutered. Male dogs who are reproductively intact may spray to ward off other competitors while females will spray before or during the time they are in heat.

Can you get a dog spayed at any age?

Though these procedures can be done on puppies as young as a few months old, dog owners should consult with their veterinarian to determine the best age to spay or neuter their pet. Many recommend for female puppies to be spayed before their first heat, which can occur as early as 5 months of age.

What Age Can male puppies be desexed?

Puppies can be spayed or neutered from 8 weeks of age, and most breeds gain sexual maturity by the age of 5 or 6 months. Many rescue organisations support desexing dogs at a very early age in order to help avoiding unplanned litters, and more unwanted dogs ending up in shelters and pounds.

What Age Can male Huskies breed?

On average, however, males become fertile after six months of age and reach full sexual maturity by 12 to 15 months. Healthy stud dogs may remain sexually active and fertile to old age. Adult males are able to mate at any time.

What happens when a male dog is neutered?

In a dog neuter surgery, also called castration, the scrotum is not usually removed. The incision is made just in front of the scrotum. There are some medical conditions that warrant removal of the scrotal tissue, but that is not the norm. Sometimes, post-op bleeding can cause a small clot to form inside the scrotum.

What do you call a neutered male dog?

"Neutering" is often used incorrectly to refer only to male animals, but the term actually applies to both sexes. The male-specific term is castration, while spaying is usually reserved for female animals. In male horses, castrating is referred to as gelding.

What happens when you neuter a male dog?

When a female dog is spayed, the vet removes her ovaries and usually her uterus as well. Spaying renders a female dog no longer able to reproduce and eliminates her heat cycle. When neutering a dog, both testicles and their associated structures are removed. This procedure is also known as castration.

At what age does a male dog start lifting his leg?

Male puppies, for the most part, begin hiking their legs during urination once they attain sexual maturity. This usually happens when they are between 6 and 9 months in age, although it often relies on components such as breed size.

Can a male dog still mate when neutered?

Although Jonesy has been neutered, that didn't stop him from mating with this Miniature Pinscher mix who was in heat. They are shown here in a post-coital tie. Your neutered dog can still have sex. The take home message here is that if you neuter your dog, don't worry, he can still have sex – if he wants.

What age should a puppy be neutered?

A male dog can be neutered any time after eight weeks of age. A few years ago, most veterinarians advised waiting until puberty hit at about six months, and some still make that recommendation. Talk to your veterinarian about what's best for your dog.

Can you get a dog's tail docked at any age?

Tail docking is, essentially, amputation or partial amputation of a dog's tail. Veterinarians do not recommend this procedure for adult dogs, and very few recommend it for puppies. Any form of docking would be extremely painful for adult dogs, and the tail doesn't heal properly due to lack of growth.

Can you get a dog's ears cropped at any age?

A: Most vets recommend getting your pups ears cropped between 7-12 weeks of age. A common myths is that a dog's ears won't stand if they're not cropped while they're puppies. You can crop your dog's ears at any age.

At what age is it too late to neuter a dog?

When To Neuter Your Dog. A male dog can be neutered any time after eight weeks of age. A few years ago, most veterinarians advised waiting until puberty hit at about six months, and some still make that recommendation.

What age should you neuter a Rottweiler?

A long good read with FACTS from 4 case studies. King Rottweilers recommends you do not spay your rottweiler until at least 12 months of age and neuter your stud before 18 months. Of course the longer the better up to two years old.

What age should I get my French bulldog neutered?

Whilst recommendations vary, vets typically suggest that you should have your French Bulldog spayed or neutered between the ages of four and nine months.

How does neutering affect a male dog?

Although neutered dogs will still lift their leg to urinate, castration reduces marking in 80% of dogs with a marked improvement in 40%. Aggression: Every aggressive dog should be castrated. Castration may also reduce or eliminate some forms of aggression (i.e., those that are influenced by male hormones).

How does neutering help a male dog?

Spaying or neutering can lead to a reduction in certain health risks for both female and male dogs. Neutering a male dog prevents testicular cancer and reduces the risk of other problems, such as prostate disease. A neutered male dog might also have less desire to roam. May help with certain behavior issues.

What does neutering do to a male dog?

Spaying a dog refers to the removal of a female dog's reproductive organs, while neutering refers to the procedure that's done for males. When a female dog is spayed, the vet removes her ovaries and usually her uterus as well. When neutering a dog, both testicles and their associated structures are removed.

When should a male dog be neutered?

When To Neuter Your Dog. A male dog can be neutered any time after eight weeks of age. A few years ago, most veterinarians advised waiting until puberty hit at about six months, and some still make that recommendation. Talk to your veterinarian about what's best for your dog.

What is involved in neutering a male dog?

Neutering a male dog involves surgically removing the testicles with a relatively simple operation. Females: The veterinarian makes an incision in the center of the dog's abdomen. He finds the uterus and ovaries and cuts them out, first making sure that all the blood vessels are clamped off so they don't bleed.

What are the benefits of neutering a male dog?

Spaying helps prevent uterine infections and breast cancer, which is fatal in about 50 percent of dogs and 90 percent of cats. Spaying your pet before her first heat offers the best protection from these diseases. Neutering provides major health benefits for your male.

Does having a male dog neutered help?

Neutering a male dog prevents testicular cancer and reduces the risk of other problems, such as prostate disease. A neutered male dog might also have less desire to roam. May help with certain behavior issues. Neutering may also decrease aggressive behavior in some dogs.

Should a male dog be neutered?

One of two important new studies on neutering male dogs suggests most dog owners should wait until their dog is a year old. If you are breeding or showing your dog, do not neuter him. Breeding and neutering are not used in the same sentence for obvious reasons.

Why should I get my male dog neutered?

Spaying or neutering can lead to a reduction in certain health risks for both female and male dogs. Neutering a male dog prevents testicular cancer and reduces the risk of other problems, such as prostate disease. A neutered male dog might also have less desire to roam. May help with certain behavior issues.

At what age does a kid get a tetanus shot?

The vaccine called DTaP helps protect young children from diphtheria, tetanus, and pertussis or whooping cough. CDC recommends a DTaP shot for babies at ages 2, 4, and 6 months, and again at 15 through 18 months old. CDC also recommends a booster shot for children ages 4 through 6 years old.

Can I get my dog neutered at 4 years old?

Technically a dog can be neutered at any age. The complications can arise depending on the dog. However, your dog at 4 years old is probably still young enough to be neutered safely if he is healthy.

At what age do puppies get teeth?

Puppies have 28 temporary teeth (called puppy teeth or milk teeth) that start coming in at about four weeks of age. They generally fall out between 14 and 30 weeks, when they are replaced by 42 adult teeth.