What Is an Impacted Tooth?

An impacted tooth is a tooth that has remained within the jawbone and cannot erupt through the gum into the oral cavity, or has only partially emerged. While most commonly seen in wisdom teeth (third molars), canines, premolars, and even rarely incisors can also become impacted.

Wisdom teeth typically begin erupting between ages 17-25. However, due to insufficient space in the jaw, incorrect angulation, or physical obstructions, these teeth frequently remain fully or partially impacted.

Types of Impacted Teeth (Impaction Classification)

Impacted teeth are classified into different types based on their position and angle within the jawbone. This classification plays an important role in determining the surgical approach:

Vertical Impaction

The tooth is positioned in the correct direction but has remained within the jawbone. It has not been able to penetrate the gum tissue. Generally the easiest extraction type. In some cases, the tooth may erupt on its own and follow-up may be sufficient.

Mesioangular Impaction

The most commonly seen impaction type. The tooth is tilted toward the adjacent tooth (approximately 45 degrees). It can cause decay, root resorption, or pain by pressing on the neighboring tooth. Surgical intervention is generally required.

Horizontal Impaction

The tooth is in a completely horizontal position, extending toward the root of the adjacent tooth. One of the most surgically challenging impaction types. Bone removal and sectioning the tooth into pieces for extraction may be necessary.

Distoangular Impaction

The tooth is tilted toward the back of the mouth. Rarely seen but can be challenging in terms of surgical access. The relationship with the back portion of the jawbone (ramus of the mandible) must be carefully evaluated.

Full Bony and Partial Impaction

Fully impacted (complete retention): The tooth is entirely within bone with no connection to the oral cavity.
Partially impacted (partial retention): Part of the tooth has penetrated the gum but has not fully erupted. This condition increases infection risk (pericoronitis).

When Is Impacted Tooth Extraction Necessary?

Not all impacted teeth need to be extracted. However, surgical intervention is indicated in the following situations:

Recurrent infection (pericoronitis): Gum inflammation and abscess formation around partially impacted teeth
Pressure and damage to adjacent teeth: The impacted tooth causing decay, root resorption, or displacement of neighboring teeth
Cyst or tumor formation: Cystic transformation of the follicular tissue around the impacted tooth
Orthodontic treatment planning: The impacted tooth blocking orthodontic tooth movement
Obstructing prosthesis construction: The impacted tooth's position preventing implant or prosthesis planning
Jawbone damage: Increased risk of bone resorption or jaw fracture
Unexplained pain: The impacted tooth causing nerve pressure or referred pain

Surgical Techniques

The surgical technique for impacted tooth extraction is determined based on the tooth's position, depth within the bone, and relationship with adjacent structures.

Simple Surgical Extraction

Applied for partially impacted teeth in favorable positions. The gum is opened with a small incision, and the tooth is elevated (lifted) and removed. Generally requires minimal bone removal.

Bone-Removal Surgical Extraction

Applied for fully impacted or deeply positioned teeth. After opening the gum, the bone tissue around the tooth is removed using piezo surgery or specialized burs to access the tooth. The tooth is removed whole.

Odontotomy (Sectioning the Tooth)

Applied for horizontal or multi-rooted impacted teeth. The tooth is sectioned into pieces using specialized burs, and each piece is removed separately. This technique minimizes bone loss and reduces risk to adjacent structures.

3D Planning-Assisted Surgery

For cases very close to the nerve canal or with complex anatomy, detailed surgical planning is performed using CBCT (3D tomography) images. This planning significantly reduces the risk of nerve damage.

Detailed Recovery Process

The recovery process after impacted tooth extraction varies depending on the scope of the procedure. Below is a general timeline:

First 24 Hours

Mild bleeding is normal and controlled by applying pressure with sterile gauze
Apply cold compress (20 minutes on, 20 minutes off)
Keep your head elevated when lying down
Avoid hot foods and beverages
Do not rinse your mouth

Days 2-3

Swelling peaks during this period and then begins to subside
Pain is controlled with prescribed medication
Soft, lukewarm foods are consumed (yogurt, soup, pudding)
The surgical site is not brushed; other teeth are gently brushed

Days 4-7

Swelling and bruising significantly decrease
Pain diminishes and medication need decreases
Gradual transition to normal eating begins
Sutures are checked or removed around day 7

Weeks 2-4

Soft tissue healing is largely complete
The extraction socket begins to close
Full return to normal eating and daily activities

Months 1-3

Bone tissue healing continues
Bone filling occurs in the extraction socket
Complete healing is achieved during this period

Dry Socket (Alveolar Osteitis) and Prevention

Dry socket is the most common complication after impacted tooth extraction. It occurs when the blood clot that forms in the extraction socket becomes dislodged early. It presents with severe pain, bad taste, and mouth odor on days 2-5 after extraction.

Reducing Dry Socket Risk

If dry socket develops, treatment involves cleaning the extraction socket and applying a medicated dressing. Healing is generally achieved within 7-10 days.

Do not rinse your mouth for the first 24 hours. Saltwater rinses can begin after 24 hours.
Do not smoke. The suction movement of smoking can dislodge the clot.
Do not drink through a straw. The suction pressure disrupts clot formation.
Avoid hard foods. Soft food consumption is recommended for the first week.
Avoid physical exertion. Stay away from heavy activity for the first 48-72 hours.
Take prescribed medications regularly. Complete the full antibiotic course.

Why Choose a Specialist Oral Surgeon?

Impacted tooth extraction, especially for lower wisdom teeth, is a delicate surgical procedure performed near the inferior alveolar nerve and lingual nerve. The advantages of consulting a specialist oral surgeon include:

3D Planning: CBCT imaging identifies the exact position of the nerve canal, and surgery is planned accordingly
Experience: Safe surgical approach for complex impaction types
Minimal Trauma: Proper surgical technique selection minimizes bone and soft tissue loss
Complication Management: Early diagnosis and treatment of potential complications

Frequently Asked Questions

Do all wisdom teeth need to be extracted?

No, not all wisdom teeth need to be removed. Wisdom teeth that have erupted in the correct position, have compatible occlusion with the opposing tooth, and can be properly cleaned may be kept in the mouth. However, extraction is recommended for wisdom teeth that are partially impacted, incorrectly angled, or showing signs of infection. A clinical examination and X-ray are required for detailed evaluation.

How long will I need to stay off work after impacted tooth extraction?

This depends on the scope of the procedure and the patient's healing speed. For simple impacted tooth extractions, 1-2 days is usually sufficient. For fully impacted or complex cases, 2-4 days of rest is recommended. This period may extend to 4-5 days for patients who perform physical labor. Swelling and bruising significantly decrease within 3-5 days.

Will I be put to sleep during impacted tooth extraction?

Impacted tooth extraction is usually performed under local anesthesia, and no pain is felt during the procedure. For patients with dental anxiety or when multiple teeth are being extracted in the same session, conscious sedation may be applied. With this method, the patient is awake but feels comfortable and calm. General anesthesia is rarely necessary and is typically performed in a hospital setting.

Impacted Tooth Extraction