Author Name: Dr. Sandra Thompson
Peg Lateral Teeth in Children are permanent upper lateral incisors that are smaller than normal and often appear narrow, pointed, or cone-shaped instead of having the typical flat, rectangular shape. These teeth are located on either side of the two upper front teeth and play an important role in a child's smile, bite, and overall dental appearance.
Peg lateral teeth most commonly affect the permanent teeth rather than baby teeth. A child may have one peg lateral tooth (unilateral) or both side front teeth may be affected (bilateral). Although this condition is relatively uncommon, pediatric dentists in Las Vegas see it regularly and can evaluate whether the tooth shape is simply a normal variation or part of a broader dental development concern.
Parents often first notice Peg Lateral Teeth in Children when the permanent front teeth begin erupting, usually between the ages of 7 and 9. Compared to the surrounding teeth, the affected tooth may appear noticeably smaller or more pointed, creating gaps or an uneven smile. While peg lateral teeth are usually painless, they can sometimes affect tooth alignment, spacing, and self-confidence as children grow older.
In many cases, peg lateral teeth do not require immediate treatment. However, because they can influence how the permanent teeth fit together, a pediatric dentist should evaluate any unusual tooth size or shape. Early assessment allows the dentist to monitor tooth development, identify any related spacing or bite concerns, and determine whether future orthodontic or cosmetic treatment may be beneficial.
Peg Lateral Teeth in Children develop while the permanent teeth are forming beneath the gums. Instead of developing into a normally shaped lateral incisor, the tooth forms with a smaller, narrower crown. This change occurs during tooth development and is not caused by poor brushing, sugary foods, or anything parents did or failed to do.
One of the most common factors associated with peg lateral teeth is genetics. Children with a family history of unusually small teeth, missing teeth, or other tooth shape differences may have a greater chance of developing peg lateral teeth. Because tooth size and shape are influenced by inherited traits, it is not unusual for more than one family member to have a similar dental appearance.
Peg lateral teeth may also occur alongside other developmental dental conditions. Some children have congenitally missing permanent teeth, particularly the upper lateral incisors, while others experience differences in tooth eruption or jaw growth. In certain cases, peg lateral teeth are part of a broader pattern of dental development rather than an isolated finding.
Growth patterns of the jaws and surrounding teeth can also affect how peg lateral teeth appear. When there is extra space between the teeth, the smaller lateral incisors may become more noticeable. Conversely, crowded teeth may partially hide the size difference until a comprehensive dental examination is performed.
During a pediatric dental visit, the dentist may recommend dental X-rays to evaluate the developing permanent teeth, confirm the diagnosis, and determine whether other teeth are missing, delayed, or developing differently. This information helps create an appropriate treatment plan and allows the child's dental development to be monitored over time.
The symptoms of Peg Lateral Teeth in Children are usually easy to recognize once the permanent upper side front teeth begin to erupt. Unlike many dental conditions, peg lateral teeth often do not cause pain. Instead, parents are more likely to notice changes in the size, shape, or appearance of their child's smile.
One of the most common signs is a small or cone-shaped upper lateral incisor that appears noticeably narrower than the surrounding front teeth. The affected tooth may look pointed, tapered, or shorter than expected, making it stand out when your child smiles or speaks.
Other signs parents may notice include:
It is also important to understand how peg lateral teeth differ from other dental concerns. Baby teeth are naturally smaller than permanent teeth, so parents may not notice the condition until the permanent lateral incisors erupt. Likewise, delayed tooth eruption means the tooth has not appeared yet, whereas a peg lateral tooth has erupted but has an unusually small or pointed shape.
Peg lateral teeth can also be mistaken for chipped teeth, especially if the tooth appears pointed. However, a chipped tooth usually has rough or broken edges caused by trauma, while a peg lateral tooth has a smooth, naturally formed cone-shaped appearance that developed before the tooth erupted.
Because these differences are not always obvious, a pediatric dentist can examine your child's teeth, take dental X-rays if needed, and determine whether the tooth shape is a normal developmental variation or part of another dental condition.
Treatment for Peg Lateral Teeth in Children depends on several factors, including your child's age, whether the affected tooth is permanent, the severity of the size difference, bite alignment, spacing, and long-term smile development. Every child is different, so treatment is personalized based on individual needs.
For many younger children, the first step is simply monitoring. If the permanent tooth has recently erupted and is not causing functional problems, your pediatric dentist may recommend regular examinations to observe how the surrounding teeth continue to develop.
Routine dental visits and periodic dental X-rays allow the dentist to monitor tooth eruption, evaluate jaw growth, and identify any related concerns, such as missing permanent teeth or spacing problems that may require future treatment.
If the smaller tooth creates noticeable spacing or affects the appearance of the smile, cosmetic dental bonding is often one of the most conservative treatment options. During bonding, tooth-coloured composite resin is carefully shaped and polished to make the peg lateral tooth appear closer in size and shape to the neighbouring teeth. This treatment is commonly considered after the permanent tooth has fully erupted and when appropriate for the child's stage of development.
For older teenagers or young adults whose facial growth is complete, porcelain veneers may be an option to improve tooth shape and overall smile aesthetics. Veneers are generally not recommended for younger children because the teeth and jaws are still developing.
Some children with peg lateral teeth also benefit from orthodontic planning. Braces or clear aligners may be recommended to close spaces, improve alignment, or create the ideal amount of room if cosmetic treatment is planned later. Proper orthodontic planning helps ensure both function and appearance are optimized.
If spacing, bite alignment, or missing teeth are involved, your pediatric dentist may coordinate care with an orthodontist or other dental specialists. This team approach allows treatment to be timed appropriately as your child's smile continues to grow.
The good news is that most children with peg lateral teeth can achieve excellent long-term results. With early evaluation and individualized treatment planning, many enjoy healthy, functional, and natural-looking smiles.
You should consider scheduling an appointment if your child has:
A local pediatric dentist can perform a thorough examination, evaluate your child's tooth development, and recommend dental X-rays when necessary. Early diagnosis makes it easier to monitor changes over time and determine whether treatment should begin immediately or be planned for a later stage of growth.
Peg lateral teeth are usually not harmful, but they can affect the appearance of your child's smile, create spacing between teeth, or contribute to bite problems. A pediatric dentist can determine whether treatment is recommended.
Peg lateral teeth typically develop due to genetics or natural differences during tooth development. They are not caused by poor oral hygiene, diet, or anything parents did.
Yes. Depending on your child's age and dental development, treatment may include monitoring, cosmetic dental bonding, orthodontic treatment, or veneers later in adolescence or adulthood.
Not every child will need braces. However, if peg lateral teeth cause spacing, crowding, or bite alignment problems, an orthodontic evaluation may be recommended as part of the treatment plan.
9859 W Deer Springs Way #110
Las Vegas, NV 89149
We proudly serve Las Vegas, Providence, Skye Canyon, Summerlin and Centennial Hills.
Mon-Thurs: 8am-5pm
Friday: 8am-12pm