Peg Lateral Teeth

Peg Lateral Teeth; Peg laterals are a type of dental anomaly that can be found in some people. The condition is often hereditary and may take the form of one or more permanent teeth (typically the incisors) that have a tapered, peg-shaped appearance instead of the broad, square look that is characteristic of normal/healthy teeth.

Although peg lateral teeth are often a cosmetic issue rather than a medical one, they can also be difficult to clean, which means that plaque and tartar buildup can sometimes be an issue for people with peg laterals. If this occurs, the affected teeth are frequently more susceptible to gum disease and tooth decay than normal teeth.

If you have a peg lateral tooth (or any other type of dental anomaly), it is important to consult with your dentist to discuss treatment options. Depending on the severity of your condition and your current needs, your treatment might include orthodontic appliances such as Invisalign aligners or ceramic braces, or it might involve surgical procedures such as dental implants or dentures.

It is a condition in which the peg shaped lateral incisors are present.

Peg Lateral Teeth

Diagnosis of Peg Lateral Teeth

Treatment of Peg Lateral Teeth

A peg lateral is a tooth that lacks the normal rounded shape of most teeth and is tapered to a thin, pointed edge. This tooth may be small, or it may be smaller than its neighboring teeth. A peg lateral is usually a permanent tooth that fails to develop normally, but it can also occur in baby teeth.

The term “peg lateral” refers to an abnormal shape of the crown of a tooth, which is the white part of the tooth that’s visible above the gum line. Peg laterals are most commonly found on upper front teeth, though they can also develop on other teeth. This shape is sometimes referred to as tapered or conical.

The size of the lateral incisor tooth is smaller than the adjacent central incisor. The clinical crown length is short, and the crown form is narrow and conical. The root may be normal or short. The clinical crown height may be normal or short. The lingual surface of the tooth is flat and has a shelf-like appearance.


In an adult patient, a prosthetic solution for peg laterals requires a space maintainer for the opposing central incisor until the patient’s growth stops. A ceramic laminate veneer or bonded ceramic restoration provides a good esthetic result with minimal reduction of the adjacent teeth. In most cases, if there is sufficient space between teeth, replacement of the peg lateral with a composite resin restoration provides a better result than using a veneer because composites can be more easily contoured to guide eruption to improve the occlusal relationship and correct malocclusion.[4] In some cases, orthodontic treatment is required to have enough space for those restorations. If there are no other malocclusions present and no crossbite at the lateral position, extraction of these teeth may be an alternative treatment approach when composite restoration or veneers are not possible due to

Peg lateral is a common congenital malformation of the teeth, which results in conical shaped teeth with a small crown and with absence of cingulum. The lingual groove usually extends the entire length of the tooth.

The prevalence of this anomaly has been reported to be from 0.2% to 2.4%.


The exact etiology is unknown but it has been suggested that this occurs due to failure of complete development of the dental lamina.

Peg-shaped lateral incisors have a deficient development of enamel and dentin, resulting in the crown being narrow labiolingually and the root being short and conical. The clinical appearance is that of a peg-shaped tooth, with a long incisal edge, short crown, and short root. They are usually associated with adjacent teeth having similar morphology. These teeth may display severe hypocalcification or tetracycline staining.

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The occlusal morphology may be normal or resemble that of a class II malocclusion. The size discrepancy between peg-shaped lateral incisors and adjacent teeth may result in crowding or spacing. Peg-shaped lateral incisors have reduced surface area to resist occlusal forces. In addition, they are more prone to fracture because of their hypoplastic enamel.

Management of peg-shaped lateral incisors is controversial. Early extraction and space closure has been recommended because of their hypoplastic enamel, frequent tetracycline staining, and often poor esthetics. However, removal can cause orthodontic problems such as mesial drift or tipping of the adjacent teeth, which may lead to crowding or spacing; tipping generally occurs when there are no suitable anch

Anomalous Teeth, also known as “abnormal” or “supernumerary” teeth, are any teeth that are additional to the normal series of deciduous or permanent teeth. The abnormal teeth may be single or multiple and can vary in morphology.

The most common type of supernumerary tooth is a mesiodens, which occurs in the midline between the upper central incisors and is present in 0.15% to 3.8% of the population. Supernumerary teeth can present with a variety of clinical signs and symptoms resulting from their presence such as premature loss of primary anterior teeth, delayed eruption of permanent incisors, rotation or impaction of permanent incisors, crowding, root resorption of adjacent teeth and cyst formation.

The appearance of a supernumerary tooth depends on its anatomical position and structural composition, but generally it has an elongated shape with pointed cusps similar to a peg-shaped lateral incisor. The supernumerary tooth may have one root (unicystic) or two roots (bicystic). A supernumerary tooth may be found anywhere along the dental arch, but most occur in the anterior region. Supernumer

What is a Peg Lateral Tooth?

What is a Peg Lateral Tooth
What is a Peg Lateral Tooth

A peg lateral tooth is a tooth that is smaller than normal. They contain only one root and can sometimes have a single canal. The crown portion of the tooth is usually very small. A peg lateral has only one root, but can be found with two roots in rare situations.

These teeth are also known as mesio-distal hypoplasia of lateral incisor, and hypodontia of the maxillary lateral incisors. It is an inherited characteristic, and a very common dental problem.

The prevalence of the problem varies from population to population, but it is found in about 2% of the Chinese population, 4% of Africans, 6% of Caucasians, 8-10% of Hispanics and 15-18% of North American Indians.

The condition has a relationship to other dental problems such as absent maxillary central incisors (hypodontia), taurodontism (a condition where the pulp chamber extends significantly more than normal), impacted teeth – especially upper canine teeth, displaced maxillary canines and supernumerary teeth (extra teeth).

There are three types of peg laterals:

A peg lateral is a tooth with a small conical shape.

The word “peg” refers to the small size of the cone. The word “lateral” refers to the fact that this tooth is not a front tooth, but one that is further back in the mouth (more towards the side).

Peg lateral teeth can be found in any area of the mouth, but are most commonly found in the premolar and molar area.


Peg laterals are usually diagnosed when your child has an x-ray done of his or her mouth. They can also be diagnosed when your child has a cleaning appointment. During the appointment, our hygienist will examine each tooth with a dental mirror and sometimes an explorer tool. If we see that there is a cone shaped tooth, we will probably also see that there are missing grooves on the biting surface of the cone shaped tooth. We will then chart your child’s peg lateral teeth and let you know if they need treatment in the future.

See also  Round Teeth


No treatment is needed for peg lateral teeth unless they become decayed or cracked during your child’s lifetime. Peg laterals are at risk for decay because they have fewer grooves than normal teeth, making it harder

A peg lateral tooth is a lateral incisor that is unusually small, and shaped like a peg. It has only one cusp (rounded point or projection) rather than the two cusps of a normal lateral incisor.

Peg laterals are much more common in permanent teeth (adult teeth) than in baby teeth (deciduous teeth).

In most cases, peg laterals are not harmful to your health, although they can be aesthetically displeasing. Peg laterals may also be associated with other dental anomalies including:

Missing premolars

Answered by Dr. David McNamara:

A peg lateral tooth is a conical shaped tooth that has only 1 root and no mesial or distal cusps (small points of the tooth). The term “peg” lateral means that the crown of the tooth looks like a small peg. This type of tooth shape is found in some people. The usual lateral incisor tooth, also called a side (or “eye”) tooth, has 2 roots and 2 cusps. It’s important to know if you have a peg lateral or not because this will affect how an emergency dentist can treat your problem. If you have a peg lateral and it is broken, emergency dentist options for treatment are limited. In most cases, the best option is to relieve the pain and then return to see your regular dentist when they are available for treatment.

A peg lateral is a tooth that has little to no enamel on its sides.

It may appear pointed and somewhat resemble a peg.

The term “peg lateral” is commonly used by dentists to describe the shape of a tooth. It is most often used to describe the second premolar, also known as the first bicuspid, which is located between the canine and first molar. The first molars, or second bicuspids, can also be described as peg laterals.

Peg lateral teeth sometimes develop in people who don’t have enough room in their mouths for all their teeth to fit properly. In these cases, the peg laterals often stick out more than other teeth to accommodate the lack of space. This can make them more susceptible to damage and decay.

A peg lateral is a type of tooth that has only one cusp (bump) instead of the usual two. The word “peg” describes its shape; it looks like a peg sticking up from the gum. Normally lower molars and upper premolars have two cusps.

The cusp is the part of the tooth that bites down on food, and the ridges between them are called fissures. These make it easy for food to become trapped in the teeth, which can cause tooth decay if it’s not removed regularly. Peg lateral teeth usually don’t have these fissures, making them easier to clean and less likely to cause decay.

Peg lateral teeth are rare and only occur in about 2% of people!

Peg lateral teeth are a variation of normal human dentition. This is where the lateral incisor is undersized or ‘peg-shaped’ in comparison with its adjacent teeth.

The peg lateral tooth has a clinical relevance as it is commonly associated with the condition oligodontia, which means a reduced number of teeth. There are two types of oligodontia:

Non-syndromic oligodontia – this is where only some of the permanent teeth are missing and does not affect any other part of the body.

Syndromic oligodontia – this is where there are anomalies in other parts of the body as well as missing teeth.

Are Peg Lateral Teeth Rare?

Are Peg Lateral Teeth Rare
Are Peg Lateral Teeth Rare

Not all teeth are created equal. Some of us are born with permanent teeth that lack the same biting surface as regular teeth. These teeth, called peg laterals, usually grow in behind the 2 front teeth (the incisors). Instead of growing out like a normal incisor tooth, they have a flat surface and appear a bit like a peg.

See also  Wisdom Teeth Syringe

Children who develop peg lateral teeth often have other dental issues as well, such as problems with their bite, missing or extra teeth, or a small mouth or jaw. These issues can affect your child’s speech and ability to chew and swallow normally.

Dentists who see children and adults with this condition often recommend extracting the peg lateral teeth and replacing them with prosthetic ones. Your dentist can help you determine the best treatment for your situation.

The reason behind the question is that I’m in my late 20s, and have only recently discovered that I have peg lateral teeth, and I was wondering how rare it was.

Peg laterals are midline teeth that are small, pointed and conical in shape. They are less than 4mm wide and may be blunt or pointed. The two most common types of peg laterals are:

Blunt Peg Lateral

A blunt peg lateral is a tooth that is distally tapered, but has no cusps. These teeth have a rounded crown surface, appear as if they have been flattened with a hammer, and are often mistaken for a supernumerary tooth. A blunt peg lateral is the most common type of peg lateral.

Pointed Peg Lateral

A pointed peg lateral is a tooth that is distally tapered, with mesial and distal cusps. The mesial cusp is larger than the distal cusp and they appear as if they have been shaved off of the crown of the normal-shaped central incisor. A pointed peg lateral is relatively rare and can look like a small canine tooth, or even a large normal-shaped central incisor.

The term “peg” refers to how these teeth narrow to a very small point, similar to how a round dowel rod tapers down at the end to become small in diameter (a “peg”). These teeth tend

According to the American Association of Endodontists, the prevalence of supernumerary teeth is 0.3-3.5% in the primary dentition and 1.9-3% in the permanent dentition. The most common type reported is mesiodens and the incisor region being the most frequent location. The maxillary lateral incisor is the least common tooth to be affected.

The literature also reports a prevalence rate of 0.1-0.15% for peg laterals, with a male-to-female ratio of 3:2.

No. Congenitally missing teeth are rare and often called “peg lateral” or “peg shaped.” If you have a congenital missing lateral incisor, then it may be called a “peg lateral.” If you have a congenitally missing premolar, then it may be called a “peg shaped premolar.” The tooth is considered congenitally missing if the tooth never erupted, but if the tooth has been extracted previously, it is not considered congenitally missing.

This is a variation of normal and is rarely corrected unless it causes other problems.

If you have a congenitally missing tooth and are interested in dental implants or other treatment options, I recommend that you consult with an experienced dentist so that your specific situation can be assessed.

Peg-lateral teeth do not have cusps on the buccal surfaces of the teeth. The teeth are shaped more like a peg than a regular tooth. Peg-shaped lateral incisors are also known as:


Taurodont lateral incisors

Peg-shaped laterals

Cone-shaped laterals

These terms all refer to the same thing: a condition where the enamel extends down over the root. It is most commonly seen in the lateral incisors, but it can happen in other teeth too. Peg-laterals occur in about 1% to 2% of people.

The shape of your tooth depends on the type of tooth it is.

There are four types of permanent teeth:

Incisors – the front teeth used for cutting, biting and chewing.

Canines – the sharp eye teeth used for tearing food.

Premolars – used for crushing and grinding food.

Molars – used for chewing and grinding food.

Each type of tooth has a different shape and performs a different function when you bite down and chew.