Wisdom Teeth Removal (Third Molar Extraction): A Complete Patient Guide
Medically reviewed by Dr. Sergio Calleja, DDS, MPH — Board-Certified Oral & Maxillofacial Surgeon · Last reviewed 2026-05-22
Wisdom teeth — known to dentists as third molars — are the last teeth to develop, usually appearing between ages 17 and 25. For most people the jaw simply does not have room for them, so they get stuck against bone or gum tissue. A stuck tooth is called an impacted tooth, and according to the American Association of Oral and Maxillofacial Surgeons (AAOMS), roughly 9 out of 10 people have at least one impacted wisdom tooth.
This guide explains in plain language why wisdom teeth cause trouble, when removal is recommended (and when watching and waiting is reasonable), what sedation options make the procedure comfortable, and what recovery honestly looks like.
What Are Wisdom Teeth, and Why Do They Cause Trouble?
Third molars are a leftover from ancestors whose jaws were larger and whose diets wore teeth down faster. Modern jaws are usually too short to fit a fourth set of molars, so when wisdom teeth try to erupt — the dental word for a tooth pushing through the gums — they often run out of room and come in sideways, tilted, or not at all.
Surgeons classify impacted wisdom teeth by how deeply they are trapped. A soft tissue impaction means the tooth has cleared the bone but is still covered by gum tissue. A partial bony impaction means the tooth has partly emerged but part of the crown remains stuck in the jawbone. A full (complete) bony impaction means the tooth is entirely encased in bone. The deeper the impaction, the more involved the surgery — which is one reason a 3D scan and a careful evaluation matter before anything is removed.
Trouble starts because a partly erupted tooth is nearly impossible to keep clean. The gum flap over it traps food and bacteria, which can cause a painful gum infection called pericoronitis, cavities in the wisdom tooth or the healthy molar in front of it, and gum (periodontal) disease. Less commonly, the sac of tissue around a buried tooth can slowly expand into a fluid-filled cyst — or, rarely, a tumor — that damages the jawbone silently. Because these problems often develop without symptoms, "it doesn't hurt" does not always mean "it's fine."
When Is Wisdom Teeth Removal Recommended?
AAOMS recommends every patient have their wisdom teeth evaluated — ideally in the teenage years, and no later than the mid-20s, when roots are still forming and removal is easiest. Not every wisdom tooth needs to come out: a tooth that erupts fully, bites correctly, stays cavity-free, and can be cleaned may simply be monitored. Removal is typically recommended when there is:
- Pain, swelling, or repeated infection (pericoronitis) around a partly erupted tooth
- An impacted tooth pressing on — or trapping plaque against — the healthy second molar in front of it
- Cavities or gum disease developing on a wisdom tooth that cannot be cleaned or repaired properly
- A cyst or other pathology forming around the tooth on X-ray
- Teeth positioned in the path of planned orthodontics or corrective jaw surgery
- Symptom-free impacted teeth in a young patient where imaging shows future problems are likely — removing them before roots fully form (prophylactic removal) is often easier and safer than waiting for damage
- A tooth that will sit under a denture or interfere with other planned dental work
What Patients Gain
- An end to the pain-infection-antibiotics cycle of pericoronitis
- Protection of the healthy second molars from decay and bone loss
- Removal of cyst and pathology risk around buried teeth
- Easier brushing and flossing at the back of the mouth
- A shorter, smoother recovery when done young rather than after problems develop
- One planned procedure — usually all four teeth in a single visit under sedation — instead of repeated emergencies
Terms You'll Hear
Doctors and patients often use different words for the same thing. Here's how they connect:
- "wisdom teeth" = third molars
- The last four teeth to develop — one in each back corner of the mouth — usually appearing between ages 17 and 25.
- "impacted tooth / stuck tooth" = impaction (soft tissue, partial bony, or full bony)
- A tooth trapped under gum tissue or jawbone that cannot erupt into a normal position; classified by how deeply it is buried.
- "dry socket" = alveolar osteitis
- A painful condition where the protective blood clot in the healing socket is lost too early, exposing bone — the main reason for the no-straws, no-smoking rules.
- "gum infection around a wisdom tooth" = pericoronitis
- Infection of the gum flap over a partly erupted tooth — one of the most common reasons wisdom teeth are removed.
- "laughing gas" = nitrous oxide
- A mild inhaled sedative breathed through a small nose mask; it takes the edge off anxiety and wears off within minutes.
- "IV sedation / twilight sleep" = intravenous moderate-to-deep sedation
- Medication given through a small IV that keeps you deeply relaxed and usually with no memory of the procedure — the most popular choice for wisdom teeth.
- "gum stitches" = sutures
- Small threads that close the gum over the socket; most are dissolvable and disappear on their own within one to two weeks.
- "jawbone (lower / upper)" = mandible / maxilla
- The lower jaw (mandible) houses the nerve that gives feeling to the lip and chin; upper wisdom tooth roots often sit near the maxillary sinus.
Frequently Asked Questions
Do wisdom teeth always need to be removed?
No. AAOMS guidance is clear: a wisdom tooth that grows in completely, functions in the bite, stays free of cavities and gum disease, and can be kept clean may be retained — with regular check-ups and periodic X-rays to monitor it. The problem is that most wisdom teeth never reach that standard: roughly 9 out of 10 people have at least one impacted third molar. An evaluation with 3D imaging tells you which category your teeth fall into.
What is the best age to have wisdom teeth removed?
Generally the late teens to early 20s. At that age the roots are only partly formed and the surrounding bone is softer, so surgery is simpler and recovery is faster. AAOMS recommends an evaluation in the teenage years and, if removal is indicated, doing it before the mid-20s. Older adults can absolutely have wisdom teeth removed — Dr. Calleja does it routinely — but fully formed roots, denser bone, and closer nerve contact make the surgery and recovery somewhat more involved.
How much does wisdom teeth removal cost, and does insurance cover it?
In the United States, published figures typically run from about $200 to $1,000 or more per tooth without insurance, depending on how deeply the tooth is impacted and the anesthesia used — commonly a few thousand dollars for all four impacted teeth with sedation. Dental insurance usually covers a meaningful portion (often 50–80% of the surgical fee, subject to your deductible and annual maximum), and medical insurance sometimes applies for impacted teeth. Our team verifies your benefits and gives you a written estimate before scheduling.
Will I be asleep for the procedure?
You can be. Options range from local anesthesia (numbing only) to nitrous oxide (laughing gas) to IV sedation — often called twilight anesthesia, where you are deeply relaxed and typically remember nothing — to full general anesthesia. As a board-certified oral and maxillofacial surgeon, Dr. Calleja is trained and licensed to provide IV sedation and general anesthesia in the office, which is the standard of care for impacted wisdom teeth. Most patients choose IV sedation.
Should all four wisdom teeth come out at once?
Usually yes, if all four need removal. One appointment means one round of anesthesia, one recovery, and one course of time off — rather than going through the process two or four times. Removing all four typically adds only minutes to the procedure. Occasionally there is a reason to stage them, and Dr. Calleja will tell you if that applies to you.
How long does the surgery take?
Removing all four wisdom teeth usually takes about 45 minutes to an hour, and often less. Deeply impacted teeth can take longer. Plan on roughly two hours at the office overall, including check-in, anesthesia, and time in recovery before you go home the same day.
How painful is wisdom teeth removal?
The procedure itself should not hurt — you are numb, sedated, or asleep. Afterward, expect soreness and swelling that peak around days two to three and then improve steadily. Most patients manage well with over-the-counter ibuprofen and acetaminophen on a schedule, and most are back to school or work in about three to five days.
Where does Dr. Calleja perform wisdom teeth removal?
At the practice's offices in Waldorf and California, Maryland, which are equipped for in-office IV sedation and general anesthesia. Dr. Calleja is board-certified by the American Board of Oral and Maxillofacial Surgery, plans every surgical case with a low-radiation 3D CBCT scan, and consultations are available in English and Spanish.
Have Questions About Wisdom Teeth Removal?
Dr. Calleja evaluates every case personally at the Waldorf and California, MD offices — consultations in English or Spanish.
Related Services
This page is general patient education, not personal medical advice. Every patient's anatomy and health history are different — treatment details, risks, and recovery vary case by case and are reviewed with you during your consultation. For emergencies, call 911.