Double Teeth in kids? What they are and when to get help?

Dr. Chintan Patel

The Double Row Dilemma: Understanding “Shark Teeth” and “Double Teeth in Kids” and the Importance of Early Intervention

What are “double teeth” in kids?

Witnessing a new adult tooth emerge behind a seemingly steadfast baby tooth can be a perplexing sight for parents. This phenomenon, often referred to as “shark teeth” or what some parents describe as “double row of teeth in kids”, is a relatively common occurrence in children dentistry. While it might appear alarming, understanding the underlying mechanisms, potential long-term consequences, and the benefit of timely intervention is crucial for ensuring a child’s healthy dental development.

Shark Teeth: This is when permanent adult teeth erupt behind baby teeth that haven’t yet fallen out, creating a double row. This is common, especially with the lower front teeth around age 6-7.

Fused or Geminated Teeth: This is a dental anomaly where two developing tooth buds join together (fusion) or a single tooth bud tries to split into two (gemination), resulting in a tooth that appears wider than normal. This is less common.

What causes double teeth?

Witnessing a new adult tooth emerge behind a seemingly steadfast baby tooth can be a perplexing sight for parents. This phenomenon, often referred to as “shark teeth” or what some parents describe as “double row of teeth in kids”, is a relatively common occurrence in children dentistry. While it might appear alarming, understanding the underlying mechanisms, potential long-term consequences, and the benefit of timely intervention is crucial for ensuring a child’s healthy dental development.

Normally, the eruption of permanent teeth is a carefully orchestrated process. As the adult tooth develops beneath the gum line, specialized cells called osteoclasts are activated. These cells are responsible for the physiological resorption of the roots of the overlying baby tooth. This root resorption is a gradual process, leading to the baby tooth becoming loose and eventually shedding, paving the way for its permanent successor to erupt into the correct position.

However, in some instances, this resorption process may not occur as expected, or the permanent tooth might erupt slightly off its intended path. This can result in the permanent tooth emerging behind the still-firmly attached baby tooth, creating the visual effect of “double teeth in kids” or “shark teeth”. Several factors can contribute to this situation. Genetic predisposition can play a role, influencing the timing and pattern of tooth eruption. Additionally, the angulation of the erupting permanent tooth or a lack of sufficient space in the jaw can cause it to deviate from the typical eruption pathway. In some cases, trauma to the baby tooth can also affect the resorption of its root.

According to the Australian Dental Association (ADA), the prevalence of retained primary teeth varies depending on the specific tooth. While any primary tooth can be retained, some are more commonly affected than others. For instance, upper second molars and upper canines are frequently cited as teeth that may be retained beyond their expected exfoliation time.

However, the phenomenon of adult teeth erupting behind baby teeth, leading to the appearance of “shark teeth” or “double teeth in kids”, is often most noticeable in the incisor region, particularly the lower incisors, due to their prominent position in the mouth. Studies have shown that the incidence of retained primary incisors with erupting permanent successors can range from 1% to 10% in children, making “double teeth in kids” a relatively frequent concern for parents.

When parents should seek help for double teeth?

The baby tooth is not loose: If the permanent tooth has erupted behind the baby tooth, and the baby tooth shows no signs of loosening even after a few weeks.
The permanent tooth is significantly erupted: If the new permanent tooth has grown to a noticeable height behind the baby tooth. Waiting too long can cause the permanent tooth to settle in an incorrect position.
Difficulty with eating or speaking: If the double teeth are interfering with your child’s normal oral functions.
Pain or discomfort: If your child experiences any pain, swelling, or discomfort in the area of the double teeth.
Food trapping or gum irritation: If food gets easily stuck between the two rows of teeth, leading to potential gum irritation or increased risk of cavities.
Noticeable misalignment: If the permanent tooth is erupting at a significant angle or is clearly misaligned compared to the other teeth.
Persistence beyond a reasonable timeframe: As a general guideline, if the baby tooth hasn’t fallen out within two months of the permanent tooth emerging, it’s advisable to consult a dentist.
You have any concerns: As a parent, if you have any worries about your child’s dental development, it’s always best to err on the side of caution and seek professional advice.

At 32 Smile Design we assess the situation, determine the cause of the double teeth (whether it’s a simple case of delayed shedding or another underlying issue), and recommend the most appropriate course of action.

The Disadvantages of Delayed Action on “Shark Teeth” or “Double Teeth in Kids”: Why Early Intervention Matters

double teeth in kids

While a “wait and see” approach might seem tempting when you notice “shark teeth” or “double teeth in kids”, delaying action can lead to a cascade of dental problems with potentially long-lasting effects:

Malocclusion (Misaligned Bite): The most significant risk associated with untreated “shark teeth” or “double teeth in kids” is the permanent teeth erupting in an incorrect position. The retained baby teeth act as physical barriers, forcing the adult teeth to erupt lingually (towards the tongue) or labially (towards the lips). This can result in crowding, overlapping, and various forms of malocclusion, impacting the child’s bite and potentially requiring more extensive orthodontic treatment later to correct the “double teeth in kids” issue and achieve proper alignment.
Increased Risk of Cavities and Gum Disease: The “double teeth” situation creates tight spaces that are notoriously difficult to clean effectively. Food particles and bacteria can become trapped between the “shark teeth”, leading to an increased risk of dental caries (cavities) in both the baby and newly erupted permanent teeth. Furthermore, the inflammation caused by trapped debris can contribute to gingivitis (gum disease) in the areas affected by the “double teeth in kids”.
Speech Difficulties: In some cases, the misalignment of the front teeth due to retained baby teeth, contributing to the appearance of “shark teeth”, can subtly affect a child’s speech development and articulation. Addressing the “double teeth in kids” early can prevent potential speech impediments.
Aesthetic Concerns and Self-Esteem: A noticeably misaligned or crowded smile due to “shark teeth” can impact a child’s self-esteem and confidence, particularly as they get older and become more conscious of their appearance. Correcting the “double teeth in kids” early can contribute to a more positive self-image.
Prolonged and More Complex Treatment: Delaying intervention for “shark teeth” often means that when treatment is finally sought, the issues may be more severe and require more complex and potentially longer orthodontic treatment to correct the “double teeth in kids” and associated alignment problems. This can translate to increased costs and a longer period of wearing braces or other appliances.
Root Resorption Issues in Permanent Teeth: In rare cases of untreated “shark teeth”, the abnormal eruption path of the permanent tooth due to the retained baby tooth can even lead to resorption of the root of the permanent tooth itself.

How 32 Smile Design Dental Clinic Can Help Manage “Shark Teeth” and “Double Teeth in Kids” for a Flourishing Smile

At 32 Smile Design Dental Clinic, we understand the importance of timely and expert care in guiding your child’s dental development, especially when you notice “shark teeth” or “double teeth in kids”. Our experienced team of dentists and pediatric dental specialists are well-equipped to diagnose and manage these cases effectively. Here’s how we can help:

Comprehensive Assessment of “Shark Teeth”: Our skilled dentists will conduct a thorough examination of your child’s mouth, specifically looking at the “double teeth” or “shark teeth”. This includes visual inspection and necessary radiographic imaging (X-rays) to accurately assess the position of both the baby and permanent teeth, evaluate the extent of root resorption (or lack thereof), and identify any underlying factors contributing to the “double teeth in kids” phenomenon.
Personalized Treatment Planning for “Double Teeth in Kids”: Based on our comprehensive assessment of the “shark teeth”, we will develop a tailored treatment plan that addresses your child’s specific needs. This may involve Gentle Extraction of Retained Baby Teeth, Space Management for Erupting Teeth, and Orthodontic Evaluation and Treatment for Misalignment.
Education and Guidance on “Shark Teeth”: We believe in empowering parents with the knowledge they need to understand their child’s dental health, especially regarding “shark teeth” and “double teeth in kids”. Our team will clearly explain the situation, the recommended treatment options, and provide guidance on maintaining optimal oral hygiene during the transition.
Comfortable and Child-Friendly Environment: We strive to create a welcoming and comfortable environment for children undergoing treatment for “shark teeth”, ensuring a positive and stress-free dental experience. Our team is trained in communicating effectively with children and addressing any anxieties they may have about their “double teeth”.
Long-Term Monitoring of Permanent Eruption: We will continue to monitor your child’s dental development after addressing the “shark teeth” to ensure the permanent teeth erupt correctly and address any potential issues that may arise in the future.

Don’t let the appearance of “shark teeth” or “double teeth in kids” compromise your child’s smile and oral health. Early intervention at 32 Smile Design Dental Clinic can help guide their permanent teeth into their proper positions, preventing future complications and ensuring a confident, healthy smile for years to come.

Schedule a consultation today to discuss your child’s unique needs and embark on the path to a lifetime of healthy smiles, free from the concerns of “double teeth”.

Scroll to Top