Most people picture a failing implant as one that wobbles. In reality, looseness tends to be one of the last things to show up. The first changes are usually in the gum around the implant: bleeding when you clean it, a puffy or red margin, or a taste that will not go away. Those quieter signs are the ones worth acting on, because that is when treatment is simplest.
Gum problems around implants are common
Implants cannot decay, but the gum and bone that hold them can become inflamed. A systematic review in the Journal of Clinical Periodontology (Derks and Tomasi, 2015) estimated that, on average, about 43% of people with implants had peri-implant mucositis and about 22% had peri-implantitis, although the figures varied widely between studies because they used different definitions.
The two conditions sit on a scale:
- Peri-implant mucositis is inflammation of the soft gum only. Its main sign is bleeding when the gum is gently probed, sometimes with redness or swelling. Plaque is the cause, and it can usually be settled with professional cleaning and better home care.
- Peri-implantitis is when the inflammation has spread to the bone, which is lost progressively over time. It is harder to treat and is a leading cause of implants failing after they have been in place for a while.
Catching the first stage before it becomes the second is the whole point of watching for early signs.
Bleeding is usually the first thing you notice
Healthy gum around an implant should not bleed when you brush or use an interdental brush. A little pink in the sink once is not a crisis, but bleeding from the same spot most days is a sign of inflammation and is worth booking in for. The 2017 World Workshop on periodontal and peri-implant diseases (Berglundh and colleagues) described the absence of bleeding, redness, swelling and pus as the marks of peri-implant health, which gives a useful checklist to compare against.
Colour, swelling and taste
Look at the gum around the implant crown in a mirror and compare it with the gum around your natural teeth. A darker red margin, a shiny swollen edge or gum that feels tender when pressed are all worth mentioning. So is a persistent bad taste or odour from one area that does not go away with good cleaning, or a small bead of pus at the gumline. Pus means there is infection, and it should be seen promptly rather than at your next routine visit.
Pain that does not follow the normal pattern
Some soreness after implant surgery or after the crown is fitted is expected, and it should ease steadily over the following days. Pain that keeps building instead of easing, pain that returns after everything had settled, or tenderness when you bite on the implant crown are different. They can point to infection, an overloaded bite or a problem with the implant's connection to the bone.
Pain is not a reliable early warning on its own, though. Gum and bone inflammation around implants is often painless until it is well advanced, which is why the visible signs above, and regular checks, matter more.
Changes that only show up at a check-up
Some of the most useful information is invisible to you. At review appointments a dentist or OHT gently measures the gum pocket around the implant and looks for bleeding or pus. Comparing these with earlier readings shows whether anything is changing. Periodic X-rays show the bone level, and the 2017 World Workshop recommended recording a baseline X-ray and probing measurements once the implant crown is fitted, so later changes can be measured against it.
Why a loose implant is a late sign
An implant is held by bone that has grown tightly against its surface, a process explained in our guide to how implants bond to bone. For the implant itself to move, much of that support has usually been lost. By then the options for saving it are fewer.
Not every wobble means the implant is failing, though. Sometimes it is only the crown or the small screw holding it that has come loose, which is usually a straightforward repair. A dentist can tell the difference quickly, so any movement deserves a prompt visit.
Who is more likely to have problems
Plaque build-up is the main driver, so the risk is higher when cleaning around the implant is difficult or skipped. A history of gum disease also raises the risk, and our article on implants after periodontitis explains the extra monitoring that usually involves. Smoking reduces blood flow to the gums and is linked with more implant failure and bone loss, as covered in implants and smoking. Going without regular maintenance care after treatment is also linked with a higher risk of peri-implantitis, and it means early changes go unnoticed for longer.
Keeping the gum around an implant healthy
Daily cleaning around the implant, including between it and the neighbouring teeth, does most of the work. Interdental brushes or floss designed for implants are often easier than standard floss. Our guide to cleaning dental implants at home covers the tools that suit different implant crowns. Regular professional reviews then catch what home care misses.
What patients ask about implant problems
Can an implant fail years after it was placed?
Yes. Some problems appear during healing, and peri-implantitis can start at any time after the crown is fitted. One long-term study found that in most affected people it had begun within the first three years, after which the bone loss tended to speed up. That is why reviews continue for the life of the implant.
My implant gum bleeds but nothing hurts. Should I worry?
It is worth having it checked. Bleeding is the main sign of mucositis, and the inflammation is often painless. Treated early, it can usually be settled.
How often should an implant be reviewed?
It depends on your risk. Many people are reviewed at their usual check-up and clean, while those with a history of gum disease or other risk factors may be seen more often.
Having an implant checked
If you have noticed bleeding, swelling, a bad taste or any movement around an implant, it is better to have it looked at now than to wait. Lumi Dental can examine the implant, measure the gum and take an X-ray if needed, then talk you through what we find. Read more about dental implants at Lumi or see current offers, including free implant consults. This article is general information and does not replace an individual dental assessment.
