Wisdom Tooth Growing Sideways: Symptoms, Risks & Treatment Options

Wisdom teeth (third molars) are the last teeth to develop, typically emerging between ages 17 and 25. By the time they are ready to erupt, there is often not enough room in the jaw to accommodate them. This lack of space is the primary reason wisdom teeth grow sideways or at odd angles.

Several factors contribute to sideways wisdom tooth growth:

• Insufficient jaw space — Modern human jaws are smaller than those of our ancestors, leaving less room for third molars. When the jaw is too small, the wisdom tooth has nowhere to go but sideways
• Crowding from existing teeth — If your other teeth are already tightly packed, the wisdom tooth may be physically blocked from erupting vertically
• Angle of development — The tooth bud (the developing tooth beneath the gum) may form at an abnormal angle from the start, causing the tooth to grow horizontally rather than vertically
• Bone density and structure — The density and shape of your jawbone can influence the path a wisdom tooth takes as it develops
• Genetics — Jaw size and tooth development patterns are largely inherited. If your parents had impacted wisdom teeth, you are more likely to as well

The four types of wisdom tooth impaction:

1. Horizontal impaction — The tooth lies completely on its side, parallel to the jawline. This is the most problematic type and is what most people mean by "growing sideways"
2. Mesial (angular) impaction — The tooth is angled forward, pushing toward the second molar. This is the most common type of impaction
3. Vertical impaction — The tooth is in the correct position but cannot fully break through the gum
4. Distal impaction — The tooth is angled toward the back of the mouth, away from the second molar

A wisdom tooth growing sideways may not cause any symptoms initially — many people only discover the issue during a routine dental X-ray. However, as the tooth continues to develop and push against surrounding structures, symptoms typically emerge.

Common symptoms include:

• Pain or pressure in the back of the jaw — Often a dull, persistent ache that may worsen when chewing or opening your mouth wide
• Swelling and tenderness — The gum tissue around the impacted tooth may become swollen, red, and tender to the touch
• Difficulty opening your mouth — Known as trismus, this stiffness or limited jaw movement can occur when inflammation affects the muscles around the joint
• Pain radiating to the ear, temple, or eye — Because the wisdom teeth are located near several nerve pathways, pain can radiate to seemingly unrelated areas of the head
• Bad breath or unpleasant taste — Bacteria can accumulate around a partially erupted or impacted wisdom tooth, causing persistent bad breath or a bad taste in the mouth
• Swollen lymph nodes — The lymph nodes under your jaw or in your neck may swell as your body responds to inflammation or infection
• Headaches — Chronic pressure from an impacted wisdom tooth can trigger tension headaches, particularly on the affected side
• Pain in the adjacent tooth — The sideways pressure on the neighboring second molar can cause it to ache or become sensitive

When symptoms come and go: It is common for wisdom tooth pain to flare up and then subside for days or weeks before returning. This does not mean the problem is resolving — it usually indicates periodic inflammation that will worsen over time without treatment.

While not every sideways wisdom tooth requires immediate extraction, leaving a problematic one untreated can lead to serious complications over time. The risks increase the longer the situation is left unaddressed.

Diagnosing a sideways wisdom tooth typically involves a combination of clinical examination and dental imaging.

Diagnostic methods include:

• Visual examination — Your dentist will examine the back of your mouth for signs of partial eruption, swelling, redness, or infection. They will also check for tenderness and limited jaw movement
• Panoramic X-ray (OPG) — This is the standard imaging for wisdom teeth. A single X-ray captures all of your teeth and both jaws, clearly showing the position, angle, and depth of impacted wisdom teeth, as well as their relationship to neighboring teeth and nerves
• Cone beam CT scan (CBCT) — For complex cases, particularly when the wisdom tooth is close to the inferior alveolar nerve (the main nerve running through the lower jaw), a 3D CT scan provides detailed information about the exact relationship between the tooth and critical structures. This helps the surgeon plan the safest extraction approach

What the X-ray shows: On a panoramic X-ray, a horizontally impacted wisdom tooth appears lying on its side, with the crown pointing toward the roots of the second molar. Your dentist can assess the depth of impaction (how far below the gum line the tooth sits), the angle of the tooth, the proximity to the nerve canal, and whether the roots are straight or curved — all of which influence the complexity of extraction.

The primary treatment for a sideways wisdom tooth is surgical extraction. Unlike simple extractions where a visible tooth is loosened and pulled out, removing a horizontally impacted wisdom tooth requires a more involved surgical procedure.

The cost of extracting a horizontally impacted wisdom tooth is higher than a simple extraction due to the surgical complexity involved.

Typical cost ranges (per tooth):

• Simple extraction (fully erupted tooth): $75 - $300
• Soft tissue impaction (tooth through bone but under gum): $225 - $600
• Partial bony impaction (partially trapped in bone): $300 - $800
• Full bony impaction (completely enclosed in bone — typical for horizontal impaction): $400 - $1,000+

Additional costs to consider:

• Consultation and X-rays: $50 - $350
• Anesthesia (IV sedation): $250 - $800
• Panoramic X-ray: $100 - $250
• CBCT scan (if needed): $200 - $600

With dental insurance, wisdom tooth extraction is often covered at least in part; check your plan for what it pays after the deductible. Without insurance, ask about payment plans — many oral surgery offices offer financing through companies like CareCredit.

Note: These are rough, typical US ranges. Costs vary significantly by geographic location, provider, and the specific complexity of your case. Always get a detailed cost estimate before the procedure.

If you suspect a wisdom tooth is growing sideways, it is important to have it evaluated by a dentist, even if you are not currently experiencing pain.

See a dentist promptly if you experience:

• Persistent pain or throbbing in the back of your jaw
• Swelling of the gum, cheek, or jaw on one side
• Difficulty opening your mouth or swallowing
• Pain that radiates to your ear, temple, or eye
• Bad breath that does not improve with regular brushing
• A bad taste in the mouth, especially near the back teeth
• Sensitivity or pain in the tooth next to where the wisdom tooth is located

Call 911 or go to the ER if you have:

• Severe facial swelling, especially if it is spreading to the neck or under the eye
• Difficulty breathing or swallowing
• High fever (over 101°F / 38.3°C) combined with jaw swelling
• Uncontrolled bleeding from the gum area

For routine evaluation: Dentists commonly recommend that young adults have their wisdom teeth evaluated, typically in the mid-to-late teens, even if no symptoms are present. Early detection of sideways growth allows for planned extraction before complications develop, and younger patients generally have faster, easier recoveries because the tooth roots are not yet fully formed and the bone is less dense.