Gum Inflammation After an Implant Crown Is Placed: Normal or Not?

Some tenderness and redness in the first week or two after an implant crown is fitted is normal. The gum has been pushed aside by a new shape and is adapting to it. Bleeding, swelling, or a bad taste that is still present after two weeks, or that appears later, is not part of settling in. It is inflammation with a cause, and most of the causes are fixable.

What Normal Looks Like

When the crown goes on, it fills a space the gum had partly closed over. The tissue blanches white for a few minutes as it is compressed, then pinks up. For the next several days it may feel tight, tender to brush, and look a little red at the edge. Flossing may produce a spot of blood the first few times.

All of that should be clearly improving by the end of the first week and gone by the end of the second. The crown should feel like part of you by then, not like something pressing on your gum.

What Is Not Normal

• Bleeding when you brush that continues past two weeks, or that starts after the crown had settled
• Swelling that is increasing rather than fading
• A bad taste or smell localized to the implant
• Pain when you bite on the crown
• A sense that the crown moves, rotates, or has changed how it feels
• Pus, a bump on the gum beside the crown, or fever

The Usual Causes

Retained cement. If the crown was cemented onto the abutment, excess cement can be pushed below the gumline during seating and not fully cleaned out. It sits against the tissue like a permanent splinter, holding bacteria in place. Inflammation from cement often starts a few weeks to a few months after the crown is placed and does not respond to better brushing, because a brush cannot reach it. It is one of the most common and most preventable causes of early peri-implant problems, and it is why screw-retained crowns, which use no cement, are preferred when the position allows.

Crown contour. If the crown bulges too far at the gumline or sits too tightly against the tissue, it creates a ledge that plaque collects under and that the tissue cannot keep healthy. This is a design problem, and the fix is reshaping or remaking the crown, not trying harder with the brush.

A food trap. If the contact between the implant crown and the neighboring tooth is open or too loose, food packs into the space at every meal. Inflammation on one side of the crown with constant food impaction points at this. Adjusting the contact usually resolves it.

A loose abutment screw. The crown is held to the implant by a screw, and screws occasionally loosen. The tiny movement irritates the tissue and lets bacteria into the join. This usually comes with a feeling that something has changed. It is corrected by retightening, and it should not be left.

Thin or inadequate gum tissue. Some implants have very little firm, attached gum around them. That tissue is easily irritated by brushing and by the crown itself. It can be a reason inflammation keeps returning even when everything else is right.

A Metallic Taste

A metal taste at a new implant crown is occasionally reported. A persistent one, especially with a bad smell, is more likely to be bacteria in the gap between crown and abutment than the metal itself, and should be checked along with everything else.

How to Clean a New Implant Crown

Brush it like a tooth, including right at the gumline, with a soft brush. Floss it daily, wrapping the floss around the crown and sliding it gently below the gumline on each side. An interdental brush or water flosser helps where the shape makes floss awkward. Do not stop cleaning because it bleeds; bleeding means plaque, and less cleaning means more plaque.

When to Be Seen

If inflammation has not clearly resolved by two weeks, or if it appears after the crown had settled, book an appointment. The check is short: the tissue is probed, the crown contour and contacts are assessed, the screw is checked, and an X-ray looks for cement and confirms bone levels against the baseline taken at delivery. Most of the causes above are corrected at that visit.

Be seen promptly if there is pus, a bump, spreading swelling, or any movement.

Inflammation at this stage is peri-implant mucositis: soft tissue only, and reversible. Left for months, it can become peri-implantitis and begin to cost bone. The crown stage is the best possible time to get it right. Dr. Pan restores and maintains implants in Wilmington, including crowns placed elsewhere. Related reading: swollen gums around an implant and mucositis versus peri-implantitis.