Some numbness right after implant surgery is normal. Local anesthetic can last 2 to 8 hours, and mild tingling from swelling may linger a day or two. Numbness in the lip, chin, or tongue that persists past 48 hours, worsens, or comes with severe pain is not typical and should be reported to Line Dental Aloha right away.

At Line Dental Aloha, we get this call often. A patient drives home after surgery, the anesthetic wears off, and one side of the lip still feels asleep. Usually it is nothing. Sometimes it deserves a closer look. Here is how we walk patients through the difference.

Is numbness after implant surgery normal?

Yes, in the short term. According to ADA patient education materials, lidocaine typically wears off within 1 to 3 hours and articaine within 2 to 5 hours, so feeling numb for most of the afternoon after a morning implant placement is completely expected. Some patients also notice tingling or partial numbness for another 24 to 48 hours as tissue swelling presses on small sensory nerves nearby.

That kind of lingering tingle usually fades on its own. We tell patients to track it day by day. Better today than yesterday is a good sign.

What is not typical: numbness that hits the 48 to 72 hour mark with no improvement, numbness that is spreading, or numbness paired with worsening pain. Those are the calls we want to get early.

Which nerves sit near a dental implant site?

Lower implants are the ones that demand the most planning, because the lower jaw houses several sensory nerves with no margin for error.

• Inferior alveolar nerve. It runs through the mandibular canal and supplies sensation to the lower lip, chin, and lower teeth. If this nerve is irritated, patients usually feel it in the lower lip and chin on one side.

• Mental nerve. A branch of the inferior alveolar nerve that exits the bone near the lower premolars. Implants in that region need careful spacing.

• Lingual nerve. Runs along the inside of the lower jaw and supplies the tongue. Tongue numbness or altered taste points here.

• Infraorbital nerve. Upper implants are generally farther from major sensory nerves, but the infraorbital nerve near the cheekbone can be affected with upper anterior or sinus-area work.

Mapping these nerves before we ever pick up a drill is the entire game. That's the whole trick.

What does nerve irritation feel like versus nerve injury?

Patients describe sensations differently, and the language matters when you call us. Here is the vocabulary we use:

• Temporary paresthesia. Tingling, pins and needles, or partial numbness that improves week over week. Most cases resolve within weeks to months according to studies in the Journal of Oral and Maxillofacial Surgery.

• Persistent paresthesia. Full numbness, altered taste, or burning that lasts beyond a few weeks without change. Less common, but it needs evaluation.

• Dysesthesia. Painful or unpleasant sensation in a numb area. This one we want to hear about quickly.

The pattern matters more than any one moment. Improving = reassuring. Stuck or worsening = call us.

The pattern matters more than any one moment. Improving means the nerve is calming down. Stuck or worsening means we need to see you.

How do we prevent nerve issues during implant planning?

Modern implant surgery is not freehand. Before any patient at our Aloha office sits down for placement, we build a digital plan.

• 3D cone-beam CT imaging. A CBCT scan maps the mandibular canal in three dimensions. The AAOMS position paper on CBCT recommends this imaging for preoperative implant planning to assess proximity to vital structures.

• Digital implant planning. We leave a safety buffer, commonly around 2 mm, between the planned implant tip and the inferior alveolar nerve.

• Surgical guides. A 3D-printed guide translates the plan to the mouth so depth and angle match what we designed on screen.

• Anatomy-driven choices. If a patient has a high nerve canal or thin bone, we may choose a shorter implant, an angled placement, or a bone graft before placement.

We had an Intel engineer in his early forties drive over from the Hillsboro campus along Highway 26 for a lower right implant consult last fall. His CBCT showed the inferior alveolar nerve sitting higher than average. We chose a shorter implant and adjusted the angle by a few degrees. Surgery went smoothly, and his numbness was gone by the next morning. That is what planning buys you.

When should I call Line Dental Aloha after my implant?

Pick up the phone at (503) 259-8641 if any of these are true:

• Numbness in the lip, chin, or tongue that lasts more than 48 hours after surgery

• Numbness that is getting worse instead of better

• Loss of sensation paired with severe pain, fever, or visible swelling

• You are biting your lip without realizing it, drooling, or noticing speech changes

• Altered taste or a burning sensation in the tongue or lip

We would rather hear from a patient in Beaverton or Aloha at hour 49 and reassure them than have someone wait two weeks. Early evaluation gives us options. Late evaluation narrows them.

Frequently Asked Questions

How long does numbness normally last after implant surgery?

The local anesthetic itself typically wears off in 2 to 8 hours depending on which medication was used. Mild residual tingling from swelling can last another 24 to 48 hours. After that, sensation should be back to normal. If it is not, call us so we can document it and plan a follow-up.

Can numbness from a dental implant be permanent?

In rare cases, yes. Most nerve disturbances after implant surgery resolve within weeks to months, but a small percentage can persist. That is why preoperative CBCT imaging and digital planning matter so much. The goal is to never get close enough to the nerve for that to be a question.

Does a cone-beam CT scan reduce the risk of nerve damage?

It significantly lowers the risk by showing the exact 3D position of the mandibular canal before surgery. A traditional 2D X-ray cannot show depth the same way. At Line Dental Aloha, we use CBCT for lower implant cases as a standard step, not an upgrade.

Why is my tongue numb but not my lip after a lower implant?

That pattern usually points to the lingual nerve, which runs along the inner side of the lower jaw and supplies the tongue. Lip and chin numbness involves the inferior alveolar nerve instead. Either way, tongue numbness lasting more than a day or two deserves a call.

What should I do if numbness is still there a week after surgery?

Contact us at (503) 259-8641 to schedule a follow-up. We will check the implant position, review your CBCT, and document the area of altered sensation. Many cases improve over the following weeks with monitoring. Some benefit from medication or a referral to a specialist. The sooner we know, the better the path forward.

If you live in Aloha, Beaverton, or Hillsboro and you are considering an implant, or you had one placed somewhere else and something does not feel right, call Line Dental Aloha at (503) 259-8641. We are at 18425 SW Alexander St, just off Highway 217. Dr. Paul Kyu Choi and Dr. Mijin Choi will sit down with you, review your imaging, and answer every question before you make a decision.