432+ Names of Teeth 🦷: A Powerful Guide to Every Tooth

Teeth may look like a matching set, but each one has a different job. The names of teeth describe their shape, position, and function inside the mouth. Incisors slice food, canines tear it, and premolars and molars crush and grind it.

Knowing these names makes dental charts, checkups, and everyday oral-health conversations much easier to understand.

Quick Answer:

The main names of human teeth are incisors, canines, premolars, and molars. Adults normally have 32 permanent teeth: 8 incisors, 4 canines, 8 premolars, and 12 molars, including 4 wisdom teeth.

Children usually have 20 primary teeth, made up of incisors, canines, and molars.

Quick Summary

• Definition: Names of teeth identify teeth by their type, position, and function.
• Best use: Helpful for understanding dental charts, tooth pain, treatment plans, and oral anatomy.
• Ideal audience: Students, parents, patients, and anyone learning basic dental terminology.
• Key takeaway: Every tooth type has a specific role, and its position helps identify it.

Names of Teeth in the Human Mouth

Human teeth are arranged in two arches: the upper jaw, called the maxilla, and the lower jaw, called the mandible. Each tooth belongs to a particular group based largely on what it does.

• Incisors — The flat front teeth used mainly for biting and cutting.
• Canines — The pointed teeth beside the incisors that help tear food.
• Premolars — Teeth between the canines and molars that help crush and break food.
• Molars — Broad back teeth designed mainly for grinding.
• Wisdom teeth — The third molars, located at the very back of the mouth.

An adult normally has eight incisors, four canines, eight premolars, and twelve molars. The last four molars are commonly called wisdom teeth.

Incisors

• Central incisors sit directly beside the center line of the mouth.
• Lateral incisors sit next to the central incisors.
• Adults have four upper incisors and four lower incisors.
• Their relatively thin, sharp edges are suited to cutting and biting.
• The upper central incisors are usually the most visible teeth when a person smiles.

The word incisor comes from a Latin root associated with cutting. That fits their job rather neatly: these are essentially the mouth’s front cutting tools.

Central Incisors

• There are four permanent central incisors.
• Two are located in the upper jaw.
• Two are located in the lower jaw.
• They are positioned closest to the center of the dental arch.
• They help bite into foods such as apples, sandwiches, and vegetables.

Lateral Incisors

• There are four permanent lateral incisors.
• They sit immediately beside the central incisors.
• They are generally narrower than the central incisors.
• They contribute to biting and cutting.
• Their position makes them important in the visible front portion of the smile.

Canine Teeth

• Humans have four permanent canine teeth.
• Two are in the upper jaw.
• Two are in the lower jaw.
• They sit between the lateral incisors and premolars.
• Their pointed shape helps grip and tear food.
• Upper canines are sometimes called eye teeth because of their traditional location beneath the eyes.

Canines are easy to recognize because they tend to have a more pointed crown than neighboring teeth. They also help guide the movement of the jaw during certain chewing motions.

Premolar Teeth

• Adults normally have eight permanent premolars.
• There are four in the upper jaw.
• There are four in the lower jaw.
• They sit between the canines and molars.
• They are also called bicuspids in common dental language.
• Their broader chewing surfaces help crush and break food.

Premolars are especially interesting because they bridge two functional areas. Their position is closer to the front teeth, yet their shape is better suited to chewing than cutting.

First Premolars

• There are four first premolars.
• They sit immediately behind the canines.
• They have chewing surfaces with prominent cusps.
• They help break food into smaller pieces.
• Their exact shape differs between upper and lower teeth.

Second Premolars

• There are four second premolars.
• They sit behind the first premolars.
• They are closer to the molars.
• Their chewing surfaces contribute strongly to crushing food.
• Their anatomy varies between individuals.

Molar Teeth

• Adults normally have twelve permanent molars.
• Six are located in the upper jaw.
• Six are located in the lower jaw.
• They occupy the back portion of each dental arch.
• Their large chewing surfaces are designed primarily for grinding.
• Each quadrant can contain a first, second, and third molar.

Molars generally have larger crowns and more complex chewing surfaces than incisors. Those ridges and cusps aren’t decorative. They help break food down during chewing.

First Molars

• There are four permanent first molars.
• They sit behind the premolars.
• They are among the largest permanent teeth.
• They play a major role in grinding food.
• They are often among the first permanent teeth to appear in childhood.

Second Molars

• There are four permanent second molars.
• They sit behind the first molars.
• They continue the grinding work performed by the first molars.
• Their eruption usually occurs later than that of the first permanent molars.
• Their position places them closer to the back of the mouth.

Third Molars

• There are four third molars when all develop normally.
• They are located behind the second molars.
• They are commonly called wisdom teeth.
• They may erupt during the late teenage years or early adulthood.
• Some people have fewer than four, and some never develop third molars.

Not everyone has wisdom teeth that erupt normally. They may remain partially or completely trapped beneath the gum or bone, which is why dentists sometimes monitor or remove them.

Names of Teeth by Position

Dental professionals often identify teeth using both their type and location. Thinking in four sections makes the system much easier to understand.

• Upper right — The patient’s upper-right side.
• Upper left — The patient’s upper-left side.
• Lower right — The patient’s lower-right side.
• Lower left — The patient’s lower-left side.

A useful detail: when a dentist refers to the patient’s “right” side, that means the patient’s right side—not the right side as you see the person facing you.

Adult Teeth Chart

Tooth type	Upper teeth	Lower teeth	Total
Central incisors	2	2	4
Lateral incisors	2	2	4
Canines	2	2	4
First premolars	2	2	4
Second premolars	2	2	4
First molars	2	2	4
Second molars	2	2	4
Third molars	2	2	4
Total	16	16	32

This is the typical full adult dentition. Individual tooth development varies, particularly with third molars.

Primary Teeth Names

Children don’t start with the same 32-tooth set found in adults. Primary, or baby, teeth usually total 20 teeth.

• Central incisors — 4 total.
• Lateral incisors — 4 total.
• Canines — 4 total.
• First molars — 4 total.
• Second molars — 4 total.

A major difference is that primary teeth do not have premolars.

Instead, the permanent premolars eventually develop in positions where the primary molars were located.

Baby Teeth vs Adult Teeth

Feature	Primary teeth	Permanent teeth
Typical number	20	32
Incisors	8	8
Canines	4	4
Premolars	0	8
Molars	8	12
Wisdom teeth	No	Up to 4
Common term	Baby teeth	Adult teeth

The smaller number of primary teeth isn’t an accident.

Baby Teeth vs Adult Teeth

Feature	Primary teeth	Permanent teeth
Typical number	20	32
Incisors	8	8
Canines	4	4
Premolars	0	8
Molars	8	12
Wisdom teeth	No	Up to 4
Common term	Baby teeth	Adult teeth

The smaller number of primary teeth isn’t an accident. A child’s jaw is smaller, so a full adult set would not fit comfortably during early childhood.

What Each Type of Tooth Does

• Incisors: Cut and bite food.
• Canines: Grip and tear food.
• Premolars: Crush and break food.
• Molars: Grind food into smaller pieces.
• Wisdom teeth: Function as third molars, although their usefulness varies depending on the individual.

Chewing is therefore a team effort. Your front teeth begin the process, while the back teeth handle much of the heavy grinding.

Tooth Names and Their Main Functions

Tooth type	Shape	Main function	Location
Incisor	Flat, blade-like edge	Cutting	Front
Canine	Pointed	Tearing and gripping	Beside incisors
Premolar	Broad with cusps	Crushing	Behind canines
Molar	Large and broad	Grinding	Back of mouth
Third molar	Molar-shaped	Grinding	Furthest back

This simple pattern is useful for remembering the basic anatomy: cut, tear, crush, grind.

Tooth Names Used by Dentists

You may hear dental professionals use more specific terms than the everyday names.

• Maxillary teeth are teeth in the upper jaw.
• Mandibular teeth are teeth in the lower jaw.
• Anterior teeth generally refer to the front teeth.
• Posterior teeth generally refer to the back teeth.
• Primary teeth are baby teeth.
• Permanent teeth are adult teeth.
• Crown refers to the visible portion above the gum.
• Root is the part anchored within the jawbone.
• Cusps are raised points found on many chewing teeth.
• Incisal edge is the cutting edge of an incisor.

These terms help dentists describe exactly which part of a tooth they mean rather than relying on vague phrases such as “the tooth near the back.”

Tooth Numbering Systems

Dentists don’t always identify teeth by their everyday names. Numbering systems allow them to communicate quickly and precisely.

• Universal Numbering System is commonly used in the United States.
• FDI World Dental Federation notation is widely used internationally.
• Palmer notation is another system used in dental settings.
• The exact number assigned to a tooth depends on the system being used.

For example, in the Universal system, permanent teeth are numbered from 1 through 32. The numbering begins with the upper-right third molar, moves across the upper arch, continues around the lower arch, and ends at the lower-right third molar.

The important point is not memorizing every number immediately. It’s recognizing that a tooth can have both a name and a number.

Tooth Anatomy Beyond the Name

Knowing the name of a tooth tells you its type, but a tooth itself has several anatomical parts.

• Enamel — The hard outer covering of the crown.
• Dentin — The layer beneath the enamel.
• Pulp — The inner tissue containing nerves and blood vessels.
• Cementum — A mineralized tissue covering much of the root.
• Periodontal ligament — Tissue that helps connect the tooth root to surrounding bone.
• Crown — The visible part of the tooth.
• Root — The portion that anchors the tooth in the jaw.

This explains why a tooth can have a problem in one area while the rest of it remains healthy. “A toothache” is a symptom, not a precise anatomical diagnosis.

How to Remember the Names of Teeth

A simple sequence makes the four main tooth groups easy to recall:

Incisors → Canines → Premolars → Molars

Think of their jobs in the same order:

• Incisors = cut
• Canines = tear
• Premolars = crush
• Molars = grind

Another memory trick is to picture eating a crunchy sandwich. Your incisors bite it, your canines help grip it, and your premolars and molars do most of the crushing and grinding.

Common Mistakes About Tooth Names

Calling Every Back Tooth a Molar

• Premolars are behind the canines but before the molars.
• Primary teeth make this more confusing because children have primary molars but no premolars.
• Looking at the tooth’s position helps prevent the mistake.

Assuming Everyone Has 32 Teeth

• Thirty-two is the typical full adult count when all third molars are present.
• Some adults naturally have fewer teeth.
• Wisdom teeth may never develop or may be removed.

Thinking Baby Teeth Are Unimportant

• Primary teeth help children chew.
• They also support normal speech development.
• They help maintain space for permanent teeth.
• Good care is important even though primary teeth eventually fall out.

Confusing Patient Right With Viewer Right

• Dental descriptions use the patient’s anatomical right and left.
• Looking directly at someone reverses what appears to be right and left from your viewpoint.
• Dental charts are designed to account for this.

Assuming Every Tooth Has the Same Shape

• Incisors have cutting edges.
• Canines are pointed.
• Premolars have chewing cusps.
• Molars have broader grinding surfaces.
• Shape follows function surprisingly well in the human dentition.

How to Identify a Tooth

If you’re looking at a dental diagram and need to identify a tooth, use a few clues rather than guessing.

Step 1: Check the Location

• Is it at the front?
• Is it beside the canines?
• Is it toward the back?
• Is it in the upper or lower jaw?

2: Look at the Shape

• Flat cutting edge suggests an incisor.
• Pointed crown suggests a canine.
• Smaller chewing tooth suggests a premolar.
• Large, broad chewing surface suggests a molar.

3: Count Its Position

• Frontmost teeth are central incisors.
• The next incisors are lateral incisors.
• The pointed teeth are canines.
• Behind them come first and second premolars.
• The back section contains first, second, and third molars.

4: Consider Whether It’s Primary or Permanent

• Children typically have 20 primary teeth.
• Primary dentition contains no premolars.
• Permanent dentition can contain up to 32 teeth.
• Third molars are permanent teeth.

This approach is much easier than trying to memorize a diagram without understanding the pattern.

Why Tooth Names Matter

Knowing the names of teeth isn’t just an academic exercise. The vocabulary becomes useful whenever you read a dental treatment plan, look at an X-ray, discuss a chipped tooth, or help a child understand which tooth hurts.

• It makes dental conversations clearer.
• It helps you understand dental diagrams.
• It makes treatment explanations easier to follow.
• It helps students learn oral anatomy.
• It can make it easier to describe the location of discomfort.
• It gives parents better vocabulary when discussing children’s teeth.

You don’t need to become a dental professional to benefit from knowing the basics.

Editor’s Picks: The Most Useful Tooth Terms

If you only want to remember a handful of terms, start here:

• Incisors — The eight front cutting teeth.
• Canines — The four pointed teeth beside the incisors.
• Premolars — The eight adult teeth between canines and molars.
• Molars — The broad back teeth used mainly for grinding.
• Third molars — The four teeth commonly called wisdom teeth.
• Primary teeth — The 20 baby teeth.
• Permanent teeth — The adult set, normally up to 32 teeth.

The most useful mental picture is simply front to back: incisors, canines, premolars, molars.

FAQs:

What are the four main types of teeth?

The four main types are incisors, canines, premolars, and molars. Incisors cut food, canines help tear it, premolars crush it, and molars grind it. These groups differ in shape and location because each has a somewhat different role during chewing.

How many teeth does an adult have?

A complete adult dentition normally contains 32 permanent teeth, including four third molars or wisdom teeth. However, not everyone develops all four wisdom teeth, and some people have teeth removed. So an individual adult may have fewer than 32 teeth while still having normal dental development.

How many teeth does a child have?

Children normally develop 20 primary teeth. These include eight incisors, four canines, and eight molars. Primary teeth don’t include premolars or wisdom teeth. They eventually make way for permanent teeth as the child’s jaws and dentition develop.

What are the front teeth called?

The front teeth are primarily called incisors. There are four central incisors and four lateral incisors in the complete permanent dentition. Their relatively thin cutting edges make them well suited for biting and cutting food.

What are canine teeth?

Canine teeth are the four pointed teeth positioned between the incisors and premolars. Their shape helps them grip and tear food. In everyday language, upper canines are sometimes called eye teeth because of their traditional position beneath the eyes.

What are premolars?

Premolars are the permanent teeth positioned between the canines and molars. Adults normally have eight. They have broader chewing surfaces than incisors and canines, allowing them to help crush and break food before it reaches the molars.

What are molars used for?

Molars are broad teeth at the back of the mouth that are mainly used for grinding and crushing food. Their large crowns and raised chewing surfaces are designed to handle the mechanical work involved in breaking food into smaller pieces.

Are wisdom teeth molars?

Yes. Wisdom teeth are the common name for third molars, which are the last molars in each section of the mouth. There can be four in total. Some people don’t develop all of them, while others have third molars that remain impacted rather than fully erupting.

Do baby teeth have premolars?

No. Primary dentition has 20 teeth consisting of incisors, canines, and molars. There are no primary premolars. Permanent premolars develop later and occupy positions associated with the primary molars after those baby teeth are replaced.

Why are teeth different shapes?

Different tooth shapes reflect different functions. Incisors have cutting edges, canines have pointed crowns, and premolars and molars have broader surfaces with cusps for crushing and grinding. Their placement in the mouth also contributes to how efficiently food can be processed.

What is the difference between an incisor and a canine?

An incisor has a relatively flat cutting edge and is positioned toward the front of the mouth. A canine sits beside the incisors and usually has a pointed crown. Incisors are mainly adapted for cutting, while canines are particularly useful for gripping and tearing.

What is the difference between a premolar and a molar?

Premolars are smaller teeth located between canines and molars, while molars occupy the back of the mouth and generally have larger, broader chewing surfaces. Both help break down food, but molars are especially important for heavy grinding.

Can a person have fewer than 32 adult teeth?

Yes. The number 32 includes four third molars. Some people naturally develop fewer wisdom teeth, and others have them removed because of problems such as impaction or lack of space. Therefore, having fewer than 32 teeth doesn’t automatically indicate abnormal development.

What is the easiest way to memorize tooth names?

Remember the order from front to back: incisors, canines, premolars, molars. Then connect each group to its main action: cut, tear, crush, grind. This gives you both the location and function, making the terminology much easier to retain.

Why do dentists use tooth numbers?

Tooth numbering gives dental professionals a quick, standardized way to identify a specific tooth. Different systems are used around the world, including the Universal system and FDI notation. A number can make communication more precise than describing a tooth only as “the back tooth on the left.”

Final Thoughts:

The names of teeth become much easier to remember once you connect each name with its location and job. Incisors cut, canines tear, premolars crush, and molars grind.

Adults typically have 32 permanent teeth, while children have 20 primary teeth. Understanding that basic pattern gives you a solid foundation for reading dental charts and learning human oral anatomy.