What if baby gets side teeth first?

Use our handy teething guide to discover what order your baby's teeth are likely to emerge, when it may happen, and when they’ll fall out.

Even before your baby was born, tooth buds were developing under her gums. This chart gives you an idea of when pearly whites typically start to appear and when baby teeth begin falling out to make way for permanent ones.

Keep in mind that this is a general timeline. It's perfectly normal for your baby's first tooth to show up at three months – or after her first birthday. Some babies are even born with teeth! It's also fine if your child's teeth come in or fall out in a different order than what's outlined here.
The bottom middle teeth typically emerge first, between five and 10 months. Tooth development is hereditary, so if you got your teeth early, chances are your baby will, too!
She’ll probably lose these first teeth when she’s between six and seven years old.
The upper middle teeth come next, between six and 12 months. Teeth usually emerge in pairs.
The upper central incisors fall out between six and seven years.
Between nine and 13 months, you'll probably see the upper teeth to the right and left of centre. This will give your baby a row of four teeth across the top.
The lower teeth to the right and left of centre usually make their debut between 10 and 16 months. Now your baby can flash you an adorable toothy smile!
She’s likely to lose both her lower and upper lateral incisors when she’s between six and seven years old.
Your child's first molars, the bigger teeth towards the back of the mouth, tend to emerge between 12 and 19 months.
The lower first molars usually emerge at the bottom between 12 and 18 months.
The upper and lower molars typically fall out between nine and 11 years.
The upper canines fill the gap between the incisors and first molars between 16 and 23 months.
These two teeth usually fall out between 10 and 12 years.
The lower canines usually make their appearance between 16 and 23 months. Your child's smile is probably the brightest it'll ever be, since baby teeth are whiter than permanent teeth.
She’ll lose her lower canines when she’s between nine and 12 years old.
The rear molars usually poke through on the bottom first, between 20 and 33 months.
Between 25 and 33 months, your baby's final teeth, the rear molars on the top, emerge. By the age of three, most children have a full set of 20 baby teeth and can give you a brilliant grin.
The second molars are some of the last baby teeth your child will lose, usually when she's between 10 and 12 years old.

Megan Rive is a communication, content strategy and project delivery specialist. She was Babycenter editor for six years.

Welcoming a bright and shiny child into your family is one of life’s greatest joys. The moment also ushers in years of challenges, frustrations, learning, and teaching; the likes of which you never thought possible. All from a little bundle of buoyant energy.

Most every parent will agree that an especially trying element of a child’s youngest years is managing those times when she cries from some type of pain. Knowing what causes it and what to do about it is frustrating at best, and often tear-jerking.

Baby teeth are often the culprit. You don’t expect your three-month-old to cry and fuss due to teething, or a child turning 1 to still only have a single tooth visible. What is a flummoxed parent to do? One of the best solutions is awareness of the complexities and variances of growing teeth. Regular visits to a pediatric dentist can also help.

The baby teeth transition

Most baby teeth “come in” or erupt in the same progression and time sequence for all babies but there is a great deal of flux in terms of developing a full set of healthy teeth. For example, did you know that baby teeth begin forming before birth? There are 20 of them under the gums and even though none of them have locked-in emergence dates, it is very helpful for parents to be aware of traditional teething patterns.

Let’s look at the growing path of a baby’s first wave of teeth:

Incisors

Many parents remember the days of having their fingers pierced by their baby’s incisors; razor sharp teeth that can feel like a tiger’s fang. Incisors are designed to bite into food and are the earliest teeth to arrive. The lower central incisors (the bottom front) usually come in first, when the child is 6-10 months old. At 8-12 months, the upper incisors arrive. Upper lateral incisors, on either side of front teeth, reveal themselves at 9-13 months. Finally, the lower lateral incisors erupt at 10-16 months.

Cuspids

Between the first molars and incisors are the cuspids, or canines. These teeth have a strong and pointed shape that allows a child to grip and break apart food. The two upper canines make an appearance at 16-22 months old, and the lower pair arrives in 17-22 months.

Second molars

By the time a child is 3 years old she should have a full set of baby teeth. The second pair of bottom molars begins to erupt at 23-31 months, and the final two upper molars at 25-33 months.

Baby teeth and your child’s health

Baby teeth play a critical role in your child’s health. They are the foundation in developing muscles in the jaw and ace, they help a child eat and chew properly, and they are responsible for creating space for adult teeth to efficiently come in.

When your little one beams a full, white smile, it is important to continue regular care. Just as feeding, when and how often to nap, and potty training are different for every child; the same holds true for the emergence of baby teeth. Here are some general rules of thumb to help navigate these years:

Every 6 months, roughly 4 teeth will emerge
Lower teeth emerge ahead of upper teeth
Girls’ teeth usually erupt before boys’
Upper and lower jaws see teeth erupt in pairs; on the left and right sides
Primary teeth are smaller and whiter than permanent teeth
A child should have all baby teeth visible at age 2-3

Just after reaching age 4, other big things start happening. Your child’s jaw and facial bones start growing in earnest and build spaces between her baby teeth in a natural growing step to make room for permanent teeth. Most children will see a mx of baby and permanent teeth at ages 6-12 and the baby teeth are the first to give the face its appearance and helps develop clear speech patterns.

Helpful tips

Among myriad other parental responsibilities, keep the following oral care tips in mind:

Add fluoride to your child’s diet at 6 months to help prevent tooth decay and harden tooth enamel
Massage sore gums or give your child something cold to help ease teething pain
Brush your child’s teeth twice a day with fluoride toothpaste

It takes a baby a few years to go from that adorable gummy smile to a mouth full of teeth. While the first tooth is a milestone and so cute to see, as a parent, you likely want to know when can you expect it to arrive and the others that follow.

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Use the links below to jump to sections in this blog post.

When Do Babies Start Teething?

Baby teeth, also referred to as milk teeth, deciduous teeth or primary teeth, are temporary placeholders for your baby’s permanent set of teeth to come in. They also play a significant role in your child’s development.

Baby teeth eruption is a natural part of your baby’s normal development, where your baby’s teeth enter their mouth and become noticeable. By the time your baby turns three years old, they should have 20 teeth in their mouth. Even so, most of their baby (primary) teeth will appear during their first two years of life. To make room for their permanent teeth, your child will start losing their baby teeth around the age of six.

Usually, babies are born with tooth “buds” underneath their gums, embedded in the bone below. These baby tooth buds are areas where their 20 teeth will gradually erupt and develop. But there are some instances where the process of tooth eruption doesn’t follow the text-book pattern of normal eruption. There is a possibility your baby’s teeth won’t erupt in the expected order, or perhaps there’s a substantial delay.

Each baby is different in the teeth development process, though, so don’t be alarmed if your child’s tooth eruption follows a slightly different pattern. Some may begin teething as early as four to seven months. Others may be around nine months before they get their first teeth, or even not until they’re a year old. In some cases, a baby might even be born with a couple of teeth already! Genetics can play a huge role. If you or your partner developed your primary teeth early, there’s a good chance your child will, too.

Once you understand what to look for, you can contact our Fox Kids Dentistry & Orthodontics pediatric dentist if you have any concerns.

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Order of Eruption and What Each Set of Teeth Is Designed to Help Babies Do

Below is the typical baby teeth order of appearance, when you can expect to see the primary teeth come in, and what their job is:

Central Incisor

Function: The central incisors are thin and flat. Their function is to slice through the food you eat, and they support the appearance and shape of your lips. They also help you pronounce certain sounds such as “th” and “t.” They help guide the jaw into its proper position when you close your mouth as well. You have both upper and lower central incisors.

Upper

When the tooth comes in: eight to 12 months old

When the tooth falls out: six to seven years old

Lower

When the tooth comes in: six to 10 months old

When the tooth falls out: six to seven years old

Lateral Incisor

Function: These are the two teeth that sit next to the left and right sides of your central incisors. They’re also referred to as being away from the center of your jaw or being in the distal position. The primary function of the incisors is cutting and tearing into food, although the aesthetic appearance of these teeth are scrutinized immensely since they’re visible while eating, smiling and talking. You have both upper and lower lateral incisors, too.

Upper

When the tooth comes in: nine to 13 months old

When the tooth falls out: seven to eight years old

Lower

When the tooth comes in: 10 to 16 months old

When the tooth falls out: seven to eight years old

Canine (Cuspid)

Function: The canines are located at the “corners” of your dental arches. They have a pointed, sharp biting surface, so they can perform their function of gripping and tearing food.

Upper

When the tooth comes in: 16 to 22 months old

When the tooth falls out: 10 to 12 years old

Lower

When the tooth comes in: 17 to 23 months old

When the tooth falls out: nine to 12 years old

Molars

Function: Your molars are your largest teeth in your mouth. Their biting surfaces are flat, and their function is to crush, chew and grind food. You have eight molars.

First Molar

Upper

When the tooth comes in: 13 to 19 months old

When the tooth falls out: nine to 11 years old

Lower

When the tooth comes in: 14 to 18 months old

When the tooth falls out: nine to 11 years old

Second Molar

Upper

When the tooth comes in: 25 to 33 months old

When the tooth falls out: 10 to 12 years old

Lower

When the tooth comes in: 23 to 31 months old

When the tooth falls out: 10 to 12 years old

Your child’s permanent teeth should start coming around the age of six years old.

In some kids, the first to emerge are the first permanent molars, and in others, it’s the incisors. Most of the 28 permanent teeth should be in and in place by the age of 13. By the age of 17 and 21 years old, one to four third molars, or wisdom teeth may emerge, bringing the total permanent teeth number to 32.

Based on this information, here are some answers to other common questions parents will ask us about their child’s teeth:

1. Which Baby Teeth Come First?

Typically, the first baby teeth start breaking through the gums around the age of six months old. The two bottom central incisors are usually the first two teeth to come in.

2. Are My Baby’s Teeth Late?

New parents eagerly wait for their baby’s first tiny white buds to start showing, which is a signal their first baby teeth are about to come in. Therefore, when they don’t show up, parents begin to worry something is wrong. For most babies with no teeth, this delay isn’t usually something to be concerned about. However, there could be an underlying cause too in some babies.

So, according to the American Academy of Pediatrics (AAP), if your child hasn’t popped their first tooth by the time they reach 18 months old, you should take them to the pediatric dentist. The normal range for the first tooth to appear is between four to 15 months old. Afterward, the other teeth begin erupting in a regular pattern.

3. When Do Babies Start Teething?

Most babies have their first tooth or teeth erupt by the time they’re four to six months old. However, some children’s teeth show up earlier or later.

4. When Can My Baby Eat Solid Food?

Most babies are ready to start eating solid foods along with their formula-feeding or breastfeeding by the ages of four to six months old.

Unique Situations and Potential Impacts on Children’s Tooth Development

By the time your child turns three years old, they should have a complete set of 20 baby teeth, giving them a brilliant grin. Going from toothless to a full grin takes time. And, many parents have a lot of questions when it comes to their child’s baby teeth.

However, there are some unique situations that can affect the exact timing of when your baby’s teeth begin to erupt as well as when and how the permanent teeth come in. Here’s a look at some of those situations:

1. What If My Baby Is Born Early?

On average, a baby usually gets their first tooth at around six months, but all babies are different. Children that are born prematurely should be calculated at the corrected age. For instance, if your child was born a month premature, their teeth may begin erupting at seven months instead of six.

Teething issues occur the most in premature babies, along with those that don’t have sufficient healthcare access. You should contact one of our pediatric dentists if you notice your baby hasn’t had any tooth eruptions by the time they’re 18 months old. However, it’s recommended that babies start seeing a pediatric dentist by their first birthday.

While there should not be too many significant problems with a later order of appearance, you should consult our pediatric dentist if your baby hasn’t had any teeth erupt by their first birthday. You shouldn’t be too concerned unless you have a family history of teeth missing or your child has another underlying health condition.

2. What Happens When Teeth Come in out of Order?

Because all babies have different timetables, don’t be too concerned if your baby’s teeth erupt at a different time than most babies. Some teeth can take a little longer to erupt, while other times, the teeth will erupt earlier than normal ― even as early as four months old.

Your baby’s teeth may also erupt in a different pattern than what’s considered the normal pattern. For instance, your child’s front upper teeth may erupt first. When this occurs, there’s no need to worry. It doesn’t matter the exact order the teeth come in as long as your child has a gleaming set of 20 teeth by about their third birthday.

Now, there can be potential complications when teeth erupt out of order. All potential complications should be addressed right away to avoid long-term effects. For instance, if permanent teeth come in at an abnormal position, it can affect the spacing of all the permanent teeth.

3. What Happens If I See Crowding in My Baby’s Teeth?

Crowding is when there’s a lack of space for the teeth to normally fit into the jaw. The teeth might be displaced or rotated. Crowding can be due to late or early loss of baby teeth, a genetic imbalance between tooth size and jaw, or improper tooth eruption. Crowded baby teeth will often result in crowded permanent teeth, so spacing or crowding of your child’s teeth may be a good predictor as to what things will look like as they grow older.

You should have crowding corrected since it can:

Increase the risk of baby tooth decay
Make it harder to clean the teeth surfaces properly
Increase the risk of gum disease

4. What Happens If I See a Blockage of My Baby’s Teeth?

Sometimes, if baby teeth erupt out of order, it can later block some permanent teeth from coming in because the baby teeth haven’t fallen out yet. Often the permanent tooth will come in anyway. This poses a higher risk of cavities developing since the teeth are then harder to clean. It’s also possible for the surrounding baby teeth to come out prematurely in this circumstance, which can affect the growth and development of the jaw and other facial bones.

5. What Happens If My Baby Has Impacted Teeth?

Impacted baby teeth are very rare. Impactions are more likely to occur with permanent teeth. When there’s a lack of space, some of the permanent teeth might not come through because they’re totally blocked. When there’s an occurrence of impacted teeth, damage can occur to surrounding bone and gum tissues as well as to the teeth’s roots.

If you have any concerns about any complications, consult with your child’s pediatric dentist.

6. What Happens If My Child Has Tooth Decay?

Another problem is tooth decay, and primary teeth are, unfortunately, at a higher risk for it. When there’s decay, it can lead to other complications like below and warrant an examination and potential treatment by our pediatric dentist:

Early tooth loss: When there’s early baby tooth loss, whether it’s one tooth or a couple, it can leave space that isn’t ready to be filled yet. It’s essential to consult with a pediatric dentist to see if treatment is needed to prevent future orthodontic challenges later on in your child’s life.
Infections: Infected teeth due to tooth decay can cause poor eating habits, crooked teeth, speech problems and damaged adult teeth.
Cellulitis: This is inflammation that spread to the mouth’s surrounding soft tissues. It’s a dental emergency because if left untreated, can lead to significant infection. Your child will likely experience redness, pain and substantial swelling. Our dentist will need to prescribe antibiotics and if this condition affects your child’s teeth, and extraction may be needed.
Gingivitis (gum disease): Gum disease typically causes the gum tissue to turn red, swell and bleed easily. Gum disease is both treatable and preventable with regular good oral hygiene and professional dental care.
Yellow or brown spots on teeth: White spots seen on baby teeth are actually early tooth decay signs. They are caused by enamel mineral loss. If they are left untreated, they can turn brown or yellow and require more extensive dental treatment.
Cavities: Tooth decay in toddlers can cause early childhood caries.
Poor self-esteem: Having a mouth full of cavities or misaligned teeth can lead to poor self-esteem. This is also why you shouldn’t hesitate to bring your child to the dentist.

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How Can I Tell If Something Is Wrong With My Baby’s Teeth?

While variations are completely normal, preventing early space loss and disease is important. Because the primary teeth are smaller than adult teeth (permanent teeth), they should leave plenty of space between them, allowing for room for future teeth. If you’re worried about your child’s teeth growing in too close together, have a pediatric dentist take a look.

When to Contact Our Portland Pediatric Dentistry

You should schedule your child’s first dental appointment once their first tooth erupts and subsequently if other problems show up. A pediatric dentist is best since they have additional years of training, making them experts on baby teeth, and they have a lots of experience dealing with pediatric dental problems.

Again, there’s no need to panic if your baby’s teeth grow in out of order. There may be several reasons for the delay, but generally, most, if not all, baby teeth will be in place in due time. Unless you notice complications, please be patient.

Also, even though your baby’s milk teeth will be replaced by permanent teeth eventually, this doesn’t mean you should ignore your child’s good dental hygiene with their baby teeth. Healthy development and proper oral hygiene will set your baby up for proper, oral health in the future. Contact Fox Kids in Portland today at 503-223-5039 to set up your baby’s first appointment or to address any concerns you have. We can’t wait to meet you and your little one!

Disclaimer

This blog serves to provide general information about dentistry topics to help answer your questions. The above content is for informational purposes but is not intended to be a replacement for medical advice from a licensed pediatrician or pediatric dentist. If you have a dental concern for yourself, your child or another adult, please schedule a consultation with us so you can speak with a dentist.