A bruised, achy feeling in the days after a dental implant crown is placed is usually caused by a slightly high bite. Because implants have no periodontal ligament, even microscopic extra height transfers chewing force straight to the bone, creating pressure soreness. A quick five-minute bite adjustment almost always resolves it.

At Line Dental Aloha, we hear this one often. The surgery went fine. The healing went fine. Then the final crown gets cemented, you leave feeling great, and three days later something feels off. Not sharp, not throbbing. Just bruised, like you took a soft punch to the gum.

Here is what is happening, and what to do about it.

What does a "bruised" feeling around an implant crown actually mean?

Patients describe it as deep pressure soreness. Not a zing. Not heat. More like the ache you get when you press on a day-old bruise on your arm. It usually shows up two to five days after the crown is cemented, not immediately. The soreness localizes to the gum and bone around the implant and gets worse the harder you bite.

This is different from surgical pain. Surgical pain peaks at 48 to 72 hours and then steadily fades. This post-crown ache often appears after you have forgotten about the implant entirely. One Intel engineer who commutes in from Jones Farm told us he thought he was in the clear, then noticed it on a Tuesday morning while eating a bagel. Classic timing.

The sensation itself has a cause. And in most cases, the cause is boring, mechanical, and easy to fix.

Why occlusion is the number one cause after crown placement

Here is the key fact about implants that most patients never hear. According to the Journal of Prosthetic Dentistry and the Academy of Osseointegration, dental implants lack a periodontal ligament. Natural teeth sit in a tiny hammock of ligament fibers that let them flex, shift, and cushion a hard bite. Implants are fused directly to bone. There is no give.

So when the new crown is even 20 to 30 microns too tall (thinner than a human hair) the implant cannot wiggle to absorb the force. Every chew sends a small shockwave straight into the surrounding bone. The International Journal of Oral and Maxillofacial Implants lists occlusal overload as one of the most common biomechanical causes of peri-implant discomfort and marginal bone loss after restoration.

Why do we miss it at the appointment? Articulating paper (that thin blue film we have you bite on) works great for static contacts. But chewing is a sliding, grinding motion. A contact that looks perfect in the chair can become a hot spot once you are actually eating a sandwich. Add in the fact that you were numb when we checked, and small discrepancies can slip through.

The result: micro-strained bone around the implant. A bruise, essentially. On the inside.

Other reasons a new implant crown feels tender

Occlusion is the top cause. It is not the only one.

• Soft tissue compression. The emergence profile (the shape where the crown rises out of the gum) can press on tissue that has not fully adapted to the new contour. Expect a few days of adjustment.

• Residual cement. If any cement got pushed below the gumline during cementation, it can cause mild inflammation. Research in the Journal of Periodontology (Wilson 2009) documented this as a recognized cause of peri-implant irritation.

• Night grinding. If you clench or grind, you can hit that new crown hundreds of times a night without realizing it. Bruxism magnifies any high contact and, per Cochrane Oral Health reviews, increases mechanical complications in implant restorations.

• Adjacent teeth. You held your mouth open for 30 to 45 minutes. The teeth next door may be mildly sore from the appointment itself, and your brain lumps that feeling in with the implant.

One Nike product manager who drives in from the World Headquarters campus thought her implant was failing. It turned out to be a tiny fleck of cement and a 15-micron high spot. Both fixed in under ten minutes.

What you can do at home for the first few days

Try these before you panic.

• Chew on the opposite side for 5 to 7 days. Let the area calm down.

• Soft diet. Eggs, fish, pasta, yogurt, smoothies. Skip steak, bagels, and crunchy granola.

• Warm saltwater rinses. Two to three times daily. Soothes the gum.

• OTC ibuprofen if medically appropriate for you. It also helps calm the micro-inflammation in the bone.

• Mind the clench. If you grind at night, dig out your night guard. If you have been meaning to get one, now is the time.

Most mild post-crown soreness fades within 5 to 7 days once the bite settles and the gum adapts. If it is heading the right direction by day four, you are probably fine.

When to call Line Dental Aloha for a bite adjustment

Call us if any of the following is true:

• Soreness lasts more than 7 to 10 days or is getting worse instead of better.

• You see visible swelling, pus, or a bad taste near the implant (possible retained cement or infection).

• The implant feels like it moves, clicks, or wobbles.

• You cannot chew normally even on soft food.

The good news: the fix is usually fast. A five-minute bite adjustment with articulating paper and a fine polishing bur often resolves the issue completely. We have patients drive in from Beaverton and Hillsboro on their lunch break, sit down, bite a few times, and leave feeling normal again. We are right off TV Highway with easy Highway 217 access, so it is a short detour from most Washington County commutes.

Protecting the implant long term matters. The NIDCR and AAOMS report dental implant survival rates above 95 percent at ten years when properly loaded. The "properly loaded" part is the whole game. A balanced bite today is what gets you to year fifteen and beyond.

A bruised ache after a new implant crown is almost always a bite problem, not an implant problem. Five minutes in the chair usually settles it for good.

Frequently Asked Questions

Is it normal for a brand-new implant crown to feel sore when I bite?

Mild soreness for a few days is common, especially if the gum needs to adapt around the new crown shape. What is not normal is sharp pain, pain that worsens past day four, or soreness that keeps you from chewing soft food. Those warrant a quick call to our office.

How long should post-crown soreness last on an implant?

Most patients feel back to normal within 5 to 7 days. Anything past 10 days usually means a high contact that needs a small adjustment, or occasionally a bit of residual cement that needs cleaning. Both are quick fixes and should not alarm you.

Can a high bite damage my implant long-term?

Over months and years, yes. Repeated occlusal overload is a documented contributor to marginal bone loss around implants. That is why we take even "small" bite complaints seriously. A two-minute check now protects your investment for decades.

Will a night guard help if my new implant crown feels bruised?

If you grind or clench, absolutely. A night guard spreads force across all your teeth instead of hammering it into one implant site. For patients with known bruxism, we often recommend a guard before the crown is even placed. Not optional, in our view.

Do I need to come back in, or will this settle on its own?

Try the soft diet, opposite-side chewing, and warm saltwater rinses for 5 to 7 days. If you are improving, keep going. If you are flat or getting worse, come see us. The adjustment is quick, painless, and almost always decisive.

If something still does not feel right, call Line Dental Aloha at (503) 259-8641. We are at 18425 SW Alexander St in Aloha, serving patients across Aloha, Beaverton, and Hillsboro. Dr. Paul Kyu Choi and Dr. Mijin Choi are happy to take a look and get you comfortable again.