Jaw size varies from person to person, and not everyone has enough room for a wisdom tooth to erupt properly. When space is limited, a tooth can grow at an angle. It may stay partially covered by gum tissue, or crowd the tooth beside it.
The sections below explain when these situations may lead a dentist to recommend removal.
Pain and Recurring Infections
A flap of gum tissue can develop over a wisdom tooth that has not fully erupted. Food often gathers underneath that flap during chewing, and because the area is difficult to clean, irritation can follow.
This irritation may cause a dull ache near the jaw hinge, especially while chewing. Because the gum tissue stays open, infection can return even after treatment. This recurring pattern is often the reason a dentist recommends removing the tooth rather than treating the same infection repeatedly.
Tooth Decay and Gum Disease
A wisdom tooth positioned sideways can leave very little space next to the neighboring molar. Floss cannot reach that space, and even a toothbrush may not clean it effectively.
Decay can form there without the patient noticing, sometimes appearing on an X-ray only after it has already reached that neighboring tooth. Extracting the wisdom tooth closes off the hard-to-clean space where the decay starts, which protects the tooth next to it.
Damage to Nearby Teeth
A misaligned wisdom tooth can press against a neighboring tooth without the patient feeling any symptoms. Over time, that pressure can wear down the neighboring tooth’s root, a process called root resorption. This damage rarely produces a warning sign and is typically found only through imaging.
Because root resorption is difficult to reverse once it starts, removing the wisdom tooth early is a common way to prevent it.
Cysts and Other Complications
A dentigerous cyst is a fluid-filled sac that can form around the crown of a wisdom tooth still beneath the gum. These cysts are often found unexpectedly, during an X-ray taken for an unrelated reason. Many stay small, though a cyst can occasionally grow large enough to affect the surrounding bone.
Taking out the wisdom tooth eliminates the space a cyst could occupy, which is one reason extraction is sometimes recommended even for a tooth causing no current symptoms.
Crowding and Tooth Alignment
Whether a wisdom tooth is contributing to crowding in the front teeth can be hard to determine, since teeth naturally shift with age for reasons unrelated to wisdom teeth.
Given this uncertainty, a dentist typically bases a crowding-related recommendation on the patient’s own imaging and bite rather than a general assumption. Patients who have already completed orthodontic treatment sometimes choose extraction as a way to protect that alignment afterward.
What to Expect During the Wisdom Tooth Extraction
The dentist administers local anesthesia or sedation first, depending on the complexity of the case. The dentist then loosens the tooth and removes it. An impacted tooth typically requires more involved treatment. In these cases, the dentist may make an incision in the gum and remove a small amount of surrounding bone before the tooth comes out.
In some cases, a dentist sections the tooth into smaller pieces before removing it, a technique that reduces the amount of bone and tissue disrupted during the procedure. Whether the patient needs stitches afterward depends on the extent of that incision.
When Is Wisdom Tooth Removal Not Necessary
Some wisdom teeth cause no issues throughout a person’s life. A tooth is more likely to stay symptom-free when it erupts fully upright, has a healthy tooth on each side, and meets its opposing tooth correctly when the jaw closes. When a tooth meets these three conditions, a dentist may recommend against removal.
Making the Right Removal Decision
Several factors beyond the tooth itself affect timing, including school or work schedules, insurance coverage, and how close the tooth sits to a nerve.
Whether you have symptoms now or simply want to understand the state of your wisdom teeth before an issue develops, an exam and imaging at Almond Dental can help determine the right next step.