Badly Infected Wisdom Tooth
Educational only: videos on MedicalVideos.com are for general information and are not medical advice. Always consult your own doctor about your health.
What Is It? Your wisdom teeth (third molars) usually start to erupt (enter your mouth) during the late teen years. Sometimes, there's not enough room for them. They may come into your mouth partially or not at all. Partial eruption of a wisdom tooth can create a flap of gum tissue next to the tooth. The flap can trap bits of food and debris. It can turn into a hotbed for bacteria. It's called pericoronitis if the tissue around the tooth becomes inflamed. Pericoronitis also can occur around a wisdom tooth that is still completely under the gums. Symptoms Symptoms include: Painful, swollen gum tissue in the area of the affected tooth. It can be difficult to bite down comfortably without catching the swollen tissue between your teeth. A bad smell or taste in the mouth Discharge of pus from the gum near the tooth More serious symptoms include: Swollen lymph nodes under your chin (the submandibular nodes) Muscle spasms in the jaw Swelling on the affected side of the face Diagnosis Usually, someone with pericoronitis goes to the dentist, complaining of pain in the area of the back tooth. Pericoronitis is diagnosed during the clinical exam. Your dentist will see inflamed gum tissue in the area of the unerupted or partly erupted wisdom tooth. The gums may be red, swollen or draining fluid or pus. Expected Duration Pericoronitis can be managed with antibiotics and warm salt water rinses. It goes away in about one week. However, it can return. This is likely to happen if the tooth does not completely enter the mouth and food and bacteria keep building up under the gum. Prevention You can help to prevent pericoronitis by brushing any erupting wisdom tooth and flossing around it. This will help make sure that food and bacteria do not build up under the gums. However, sometimes these steps do not work. If pericoronitis returns, you may need to have the flap of gum tissue removed. In some cases, the flap of tissue grows back and the wisdom tooth will need to be extracted. Treatment Pericoronitis can be tricky to treat. That's because the flap of gum tissue won't go away until the wisdom tooth emerges naturally, the tissue is removed or the tooth is removed. Your dentist will clean the area thoroughly by rinsing under the flap with water to remove bits of food and pus. Your dentist also may need to remove damaged tissue. If the area is infected, you'll most likely be given antibiotics. Your dentist will explain how to keep the area clean, which is the best way to prevent the problem from returning. This usually involves brushing and flossing daily and rinsing your mouth with water several times a day. These steps will help to prevent food from getting stuck under the gum flap. In some cases, your dentist may suggest removing the erupting tooth. Or the dentist may want to remove the tooth above it, which bites down on the gum below. If your dentist thinks the tooth may erupt fully into the mouth without problems, he or she may leave it alone. However, if pericoronitis comes back, the tooth may be extracted. Pericoronitis that causes symptoms should be treated as soon as possible. If it is not, the infection can spread to other areas of your mouth. The most severe cases are treated in a hospital. They sometimes require intravenous antibiotics and surgery. When To Call a Professional If you have symptoms of pericoronitis, make an appointment to see your dentist. If your wisdom teeth are coming in, visit your dentist at least twice a year for regular checkups. During those visits, the dentist can check on the progress of your wisdom teeth. Prognosis Pericoronitis does not cause any long-term effects. If the affected tooth is removed or erupts fully into the mouth, the condition cannot return.
This video in 30 seconds
A dentist narrates one of his own cases involving a badly infected lower right wisdom tooth after a failed root canal, with facial swelling. He talks through removing the tooth, expressing pus, irrigating and cleaning the socket and leaving the wound open to drain, and the video ends with the one-week follow-up visit.
Key points
- The dentist identifies the failed root canal and infected wisdom tooth as the source
- Pus is seen as the gum attachment is released from the tooth
- The tissue is massaged to express pus before the tooth is removed
- The socket is irrigated and cleaned and left open for drainage
- At the one-week follow-up the swelling is much reduced and the area is cleaned again
Chapters
- 0:01 — Infected wisdom tooth case introduced
- 0:20 — Removing the source of infection
- 1:04 — Expressing pus and cleaning socket
- 1:59 — Irrigating and checking extracted tooth
- 2:08 — One-week follow-up visit
Video Transcript
A dentist narrates one of his own cases: a failed root canal on a lower right wisdom tooth that has become badly infected, with swelling of the face. He talks through removing the tooth — the source of the infection — expressing the pus, irrigating and cleaning the socket, and leaving the wound open so it can keep draining. The video ends with the one-week follow-up, the swelling much reduced and the area cleaned again.
Read the full transcript
All right, Dr. Nguyen here. I want to talk to you about this case that involves a large infection and swelling of the patient's face. So here we have a failed root canal on tooth number 32. That is your lower right wisdom tooth, and there's a sign of infection right here. Now the patient comes into our office with a lot of pain. Now here we start to remove the source of infection. The source of infection is this lower right wisdom tooth. That is what we deem to be non-restorable at this point due to the poor prognosis of the root canal.
And here pus is actually coming out after we remove the gingival attachment from the tooth. You can actually see purulence or pus coming out, and that's the source of infection that's occurring there. Now when an infection occurs what happens is that infection and that pus will try to travel in the path of least resistance. So that infection is going to spread and start to swell up and travel to wherever it is easiest to spread to. So what we're going to start doing is we're going to start massaging that infection out,
trying to remove as much of the swelling as possible and just pushing out all the pus, all the dead bacteria in that area, and then we have to remove the source of infection, which is this tooth here. So after we remove the source of infection, we clean out the area very well and we make sure to leave an open wound. Now the reason why we want to leave an open wound is so if there is any purulence left, that purulence can actually drain out of that site.
That's important because we want that area to drain out as much as possible. So here we're massaging the tissue and trying to make sure most of the infection is out. This step is actually quite uncomfortable for most patients, but it's a necessary step we must accomplish. We irrigate and cleanse the area really well. We take a look at the tooth, make sure that we're not missing any pieces. Here we have a four-rooted third molar. And here is our one week post-op. So only one week after the extraction is done, the swelling has gone down.
Considerably after the third day, we went ahead and called the patient after three days or so, and our patient actually stated that they were feeling much better. So we go ahead and irrigate the area and make sure that it's nice and clean and that there's no food impaction occurring. Thank you very much for watching and take care.
Transcript auto-generated from the video’s audio for accessibility and study. Educational content only — not medical advice.
Video Overview
From our Dentistry collection: Implants, root canals, extractions, braces and cosmetic dentistry procedures performed step by step by dentists. Browse all Dentistry videos →
SORT BY-
Top Comments
-
Latest comments