Impacted teeth are teeth that fail to erupt into their proper position within the dental arch because their natural eruption pathway is blocked or restricted.
In orthodontic practice, this is not viewed as a single isolated issue but as a developmental condition that may influence spacing, alignment, and bite stability over time.
What Are Impacted Teeth?
An impacted tooth is a permanent tooth that does not fully emerge into its correct position during normal dental development. This occurs when the eruption pathway is obstructed or when available space in the jaw is insufficient for proper positioning.
In clinical observation, this is most commonly associated with early tooth crowding, delayed shedding of baby teeth, or eruption occurring at an incorrect angle. Some teeth remain completely trapped beneath bone or gum tissue, while others partially erupt but fail to align with the rest of the dental arch.
Common Types of Impacted Teeth
Impacted Wisdom Teeth
Wisdom teeth are the third molars located at the very back of the mouth and are considered part of the posterior teeth responsible for chewing and bite support. They are the most frequently impacted teeth because they erupt last, when jaw development is already complete, and available space is limited.
In many cases, these teeth do not have a functional role in bite alignment, which is why they often become angled, trapped, or partially erupted. This can lead to pressure against neighboring molars or repeated gum irritation.
From a treatment standpoint, wisdom teeth are evaluated based on their position and risk profile. If they are non-functional or create potential complications, removal is often the most predictable long-term option.
Impacted Canine Teeth
Canine teeth play an essential role in bite guidance and overall arch stability. Because of this function, impacted canines are treated differently from wisdom teeth.
Maxillary canines are among the most commonly impacted teeth after third molars, with an estimated prevalence of around 2% of the population, and are more frequently affected in the upper jaw. (Source: PMC)
Instead of removal, the clinical goal is to preserve and guide these teeth into proper position. Impaction occurs when the eruption space is limited or when adjacent teeth block the natural eruption pathway.
These cases require careful orthodontic planning because canines are key teeth for both function and aesthetics.
What Causes Teeth to Become Impacted?
Several factors may increase the likelihood of tooth impaction.
| Cause | Description |
| Lack of Space | The jaw may not have enough room for teeth to erupt properly. |
| Teeth Crowding | Nearby teeth may block the eruption path. |
| Abnormal Tooth Position | Teeth may develop at improper angles beneath the gums. |
| Genetics | Jaw size and tooth development patterns may run in families. |
| Delayed Eruption | Teeth that erupt later than expected may become trapped. |
| Early Tooth Loss | Premature tooth loss may affect spacing and eruption patterns. |
In some patients, multiple contributing factors may be involved.
Treatment Options for Impacted Teeth (Kids, Teens & Adults)
Treatment for impacted teeth depends on age, tooth type, and how the tooth is developing beneath the gums.
Kids‘ treatment is often focused on guidance and prevention. If a baby tooth is blocking the path of a permanent tooth, removing it can help the adult tooth erupt naturally. Early monitoring is also common because jaw growth is still developing, which makes eruption easier to guide.
Teens with impacted teeth, especially canine teeth, are often treated with a combination of space creation and orthodontic guidance. Braces are commonly used to open space in the dental arch, and in some cases, a minor surgical procedure is done to expose the tooth so it can be guided into position. This stage is important because teeth are still easier to move and align during active growth.
Adult’s treatment depends more on the position and risk of the impacted tooth. If the tooth is not causing problems, it may be monitored. If it creates pressure, crowding, or infection risk, especially with wisdom teeth, extraction is often recommended. In cases where alignment is still possible, orthodontic treatment may be used, but tooth movement can take longer compared to younger patients.
Symptoms and Effects on Bite Alignment
Impacted teeth may not always show clear symptoms, but when present, they can include jaw or gum discomfort and difficulty chewing. Disruption of normal tooth eruption may also be observed when a tooth fails to emerge properly into the bite. In some cases, partially erupted teeth can trap food and bacteria, which may contribute to irritation or wisdom tooth pain, particularly in the back molar region.
As pressure develops, surrounding teeth may gradually shift out of position, leading to crowding, spacing changes, delayed eruption of nearby teeth, and bite imbalance. When canine teeth are involved, this can also affect smile alignment and proper bite guidance.
Can Braces Fix Impacted Teeth?
Yes, in many cases, braces can help fix impacted teeth by creating space in the dental arch and guiding the tooth into its proper position when eruption is possible. This approach is especially common for impacted canine teeth, which are important for bite function, smile symmetry, and overall dental stability.
Orthodontic treatment works by gradually shifting surrounding teeth to open space for the impacted tooth. In some situations, a minor surgical procedure may first be required to expose the tooth beneath the gums, after which controlled orthodontic force is used to guide it into alignment over time.
When successful, this treatment can help create a more balanced bite, improve how the teeth fit together, and support better long-term oral function.
Also Read: Types of Teeth Braces
Why Early Evaluation Matters
Impacted teeth are not always visible during a routine clinical exam and often require X-rays or dental imaging for accurate diagnosis.
From an orthodontic perspective, early evaluation allows us to identify eruption problems at the right stage, guide developing teeth into better alignment during growth, and reduce the need for more complex treatment later.
It also helps prevent long-term bite imbalance. If permanent teeth appear delayed or alignment seems uneven, an orthodontic evaluation is recommended.
Final Thoughts
Impacted teeth are a common developmental condition that affects how teeth erupt and align within the jaw. While some cases remain stable, others may gradually influence bite function, spacing, and oral health.
With early diagnosis and structured orthodontic planning, impacted teeth can often be managed before they lead to more complex alignment issues.
At Ziehmer Orthodontics, treatment is guided by clinical evaluation, imaging, and long-term bite stability to support healthy and predictable orthodontic outcomes. If you notice delayed eruption, crowding, or signs of impacted teeth, scheduling an orthodontist consultation can help ensure timely diagnosis and appropriate treatment planning.
