A dental implant that feels loose when you chew is most often caused by a loosened crown or abutment screw, which is a quick in-office fix. Less commonly, cement has failed or the implant itself is losing bone support. Any new movement should be evaluated promptly to prevent crown fracture or peri-implantitis progression.

At Line Dental Aloha, we hear this question often from patients a year or two out from their implant surgery. They bite into a bagel, feel something shift, and immediately picture the worst. The truth is usually much smaller. Three very different problems can create the same sensation, and each has its own fix.

Let's separate them.

What does a loose dental implant actually feel like?

Most patients describe a subtle wobble or click, but only during chewing. At rest, the tooth feels normal. Tough or chewy foods (steak, crusty sourdough, bagels, chewy bread) are the usual triggers because they generate the highest lateral forces on the crown.

Here's the important distinction. There are three levels of movement, and only one is serious:

• Crown-level wobble: the visible tooth part rocks slightly. The implant post underneath is solid.

• Abutment-level wobble: the connector between the crown and implant has loosened. Still fixable.

• Fixture-level mobility: the implant itself moves in the bone. This is the one that requires urgent attention.

From the outside, all three feel similar. Only an exam and X-ray can tell them apart.

Cause 1: A loose crown or abutment screw (most common)

Every implant crown is held on by a tiny screw, torqued to a specific pressure set by the manufacturer. Years of chewing loosen that screw slightly. It's the same reason wheel lug nuts need to be re-torqued after a few hundred miles.

Abutment or prosthetic screw loosening is one of the most commonly reported mechanical complications in implant dentistry, according to reviews published in the Journal of Prosthetic Dentistry. It's mechanical, not biological. Nothing has gone wrong with the implant itself.

The fix is almost anticlimactic:

• We remove the small access filling on top of the crown

• Retighten the screw to manufacturer torque

• Reseal the access with fresh composite

One appointment. Usually under an hour. No numbing needed in many cases.

We see this often with Intel and Nike engineers who commute in along Highway 26 and Highway 217. They notice the movement during a lunch sandwich, assume the worst, and are back at their desk by afternoon.

Cause 2: Cement failure or a worn crown connection

Not every implant crown is screw-retained. Some are cemented onto the abutment, and cement can debond over time, especially if the bite is even slightly off or the patient grinds at night.

Signs it's a cement problem:

• Crown lifts noticeably but the abutment underneath feels solid

• Food packs in around the edge more than it used to

• You can sometimes feel a small gap with your tongue

Bruxism and clenching multiply the load on any implant restoration. Peer-reviewed research in Clinical Oral Implants Research associates grinding with higher rates of both screw loosening and crown fracture. If you clench (and most of our tech-industry patients do, whether they realize it or not), a nightguard is part of the long-term fix, not just re-cementing the crown.

Bite adjustment sometimes goes with this. A crown sitting even a fraction too high concentrates force on that single tooth every time you close.

Cause 3: The implant itself is moving

True fixture mobility is uncommon but serious. It means the implant has lost its bond with the bone, usually because of peri-implantitis: a bacterial infection that causes progressive bone loss around a functioning implant. The American Academy of Periodontology identifies peri-implantitis as a leading biological cause of implant failure.

Warning signs that push this into the urgent category:

• Bleeding around the gum line

• Pus or a bad taste

• Gum recession or a longer-looking tooth

• Deep pockets around the implant

• Pain when biting (not just movement)

Even so, keep this in perspective. Dental implants have long-term survival rates commonly reported above 90% at 10 years in healthy patients, per Cochrane Reviews and NIDCR data. The odds are on your side. But if any of those warning signs are present, waiting is the worst thing you can do. Bone lost around an implant does not come back on its own.

Movement in a dental implant is a signal, not a sentence. Most of the time it means a screw. Sometimes it means bone. The difference matters, and it takes ten minutes to find out.

When to call Line Dental Aloha

Any new movement in an implant crown warrants an exam. Don't wait for it to get worse, and don't try to diagnose it from the feel alone.

What to expect at the visit:

• X-ray: shows bone levels and screw position

• Torque test: confirms whether the crown or abutment is the issue

• Bite check: identifies high spots that may have caused the loosening

• Nightguard assessment if grinding is contributing

Catching a loose screw early is important. A loose crown flexes with every bite, and that flex eventually fractures the porcelain or, worse, the screw itself. A fractured screw stuck inside an implant is a much bigger repair than a simple retorque.

Same-week appointments are usually available for implant concerns. Our office sits along TV Highway in Aloha, easy to reach from Beaverton, Hillsboro, and the Aloha High School neighborhood. Call (503) 259-8641 and tell us your implant feels loose. We'll get you in.

Frequently Asked Questions

Can I still chew on a loose implant crown until my appointment?

Try to avoid chewing on that side. Every bite on a mobile crown transfers force to the screw or cement bond and can make a small problem into a bigger one. A fractured screw is far harder to remove than a loose one, so sticking to the other side of your mouth for a few days protects the repair.

Will a loose implant screw fix itself if I leave it alone?

No. Screws only loosen further with use. The good news is that a loose screw discovered early is one of the simplest repairs in implant dentistry. Ignored, it can lead to a cracked crown, a fractured screw, or bacterial invasion around the implant.

Does a loose implant mean I need a new implant?Rarely. The vast majority of "loose implant" complaints turn out to be a loose crown or abutment screw, which requires no surgery at all. True implant failure (fixture mobility with bone loss) is the exception, not the rule, especially in healthy non-smoking patients.

How often should implants be checked to prevent problems?

Every six months, same as your natural teeth. Regular cleanings let us check bone levels on X-ray, measure gum pockets around each implant, and torque-test the crown if anything feels off. Most mechanical problems are caught at these visits before you ever notice symptoms.

Is a loose implant a dental emergency?

It's urgent but not usually a same-day emergency unless you have swelling, pus, or significant pain. Call us within a day or two. If you notice bleeding, discharge, or a bad taste along with the movement, treat it as more time-sensitive and call right away.

If your implant feels different when you chew, don't guess. Call Line Dental Aloha at (503) 259-8641 and we'll figure out which of the three problems it is, usually in a single visit.