Wisdom Teeth Explained: When Removal May Be Needed

Wisdom teeth are the last molars to emerge, typically between ages 17 and 25, and for many people they come through without enough room in the jaw — causing pain, infection, or crowding that may require extraction. At Divine Dental Care in Croydon, our team of ten dentists assesses wisdom teeth regularly through clinical exams and X-rays, so if yours are becoming a problem, we can identify it early and discuss your options.

What Are Wisdom Teeth and When Do They Emerge?

Wisdom teeth — clinically known as third molars — are the four teeth at the very back of your mouth, one in each corner. They are the last permanent teeth to develop, usually making their appearance somewhere between the late teens and mid-twenties. Some people get all four, others develop only one or two, and a small percentage never develop them at all.

The reason wisdom teeth so often cause trouble is timing. By the time they start pushing through the gum, the rest of your adult teeth have already settled into position. For many people, particularly those with smaller jaws, there simply is not enough space for an additional set of molars. This is especially common among younger adults in the Croydon area — university students at Swinburne or Deakin, apprentices, and young professionals — who start noticing jaw tightness or soreness at the back of the mouth during their late teens or early twenties.

When there is adequate space, wisdom teeth can erupt fully and function just like your other molars. When there is not, they may become partially erupted, grow at an angle, or remain trapped beneath the gum line entirely — a situation dentists refer to as impaction.

Signs Your Wisdom Teeth May Need Removal

Not every wisdom tooth needs to come out. Many people live with fully erupted, well-positioned wisdom teeth their entire lives. However, certain symptoms suggest that a wisdom tooth is causing — or is likely to cause — problems that warrant assessment and possible removal:

• Persistent aching or throbbing at the back of the jaw, particularly when chewing or opening your mouth wide.
• Swollen, red, or tender gums around a partially emerged tooth. You may also notice difficulty fully opening your mouth.
• Repeated infections (pericoronitis) — when a flap of gum tissue over a partially erupted wisdom tooth traps food and bacteria, leading to painful, recurring infections.
• Pressure or shifting felt in adjacent teeth, sometimes accompanied by a change in how your bite feels.
• Decay in the wisdom tooth or its neighbour — because wisdom teeth are difficult to reach with a toothbrush, they and the molars next to them can be prone to cavities.
• Cyst formation — in uncommon cases, a fluid-filled sac can develop around an unerupted wisdom tooth, potentially affecting the surrounding bone.

If you are experiencing any of these symptoms, booking a check-up sooner rather than later gives you more options. Families across Croydon, Ringwood, Kilsyth, and Croydon Hills bring their older teenagers in for a routine wisdom tooth assessment as part of their regular six-monthly visit — catching issues before they become complicated.

What Happens During Wisdom Tooth Extraction

Wisdom tooth removal is one of the most commonly performed dental procedures in Australia. The approach your dentist takes depends on the position and complexity of the tooth.

A simple extraction applies when the tooth has fully erupted through the gum. The area is numbed with local anaesthesia, the tooth is loosened with a dental instrument, and then removed. The whole process can take as little as 20 to 30 minutes for a straightforward case.

A surgical extraction is needed when the tooth is partially erupted or fully impacted beneath the gum. This may involve making a small incision in the gum tissue, removing a small amount of bone around the tooth, or sectioning the tooth into pieces for easier removal. Sedation options may be available for patients who feel anxious about the procedure or for more complex cases.

In some situations, your dentist may refer you to an oral surgeon — particularly for deeply impacted lower wisdom teeth or cases involving proximity to the inferior alveolar nerve. Divine Dental Care maintains referral relationships with oral surgery practices accessible via Maroondah Highway and EastLink, so if a referral is needed, the transition is straightforward.

Recovery and Aftercare

Most patients find that the first two to three days after extraction are the most uncomfortable, with significant improvement by day five. Full healing of the extraction site typically takes one to two weeks. Here is what to expect and how to support your recovery:

• First 24 hours: Some bleeding is normal. Bite gently on the gauze pad provided, avoid spitting or using straws (suction can dislodge the blood clot), and skip hot drinks and alcohol.
• Swelling management: Apply a cold compress to the outside of your cheek — 20 minutes on, 20 minutes off — during the first 48 hours. Swelling usually peaks around day two or three, then gradually subsides.
• Diet: Stick to soft foods such as yoghurt, soup, mashed potato, and smoothies for the first few days. Gradually reintroduce firmer foods as comfort allows.
• Oral hygiene: Do not rinse on the day of the procedure. From the next day, gently rinse with warm salt water (half a teaspoon of salt in a glass of warm water) after meals to keep the site clean.
• Pain relief: Over-the-counter anti-inflammatory medication (such as ibuprofen), taken as directed, is usually sufficient. Your dentist will advise if anything stronger is needed.
• Activity: Rest for the remainder of the day. Avoid strenuous exercise for 48 to 72 hours — if you play weekend sport at a local club in Heathmont or Bayswater, plan the procedure for a week when you can sit out a game or two.

Contact your dentist promptly if you experience worsening pain after the third day (which may indicate dry socket), persistent bleeding, fever, or difficulty swallowing. These are uncommon but treatable complications.

When Wisdom Teeth Can Stay

Removal is not automatic. Your dentist may recommend keeping your wisdom teeth if they meet all of the following criteria:

• They have fully erupted and are not trapped beneath gum tissue.
• They are upright and correctly aligned with the opposing teeth.
• They are not causing decay, gum disease, or damage to neighbouring teeth.
• You can reach them effectively with a toothbrush and floss.

Even when wisdom teeth are retained, ongoing monitoring matters. Conditions can change over time — a tooth that was fine at 20 may begin causing problems at 30 if the gum tissue recedes or oral hygiene becomes more difficult in that area. Regular check-ups at your Croydon dentist allow any changes to be picked up early.

Emergency Wisdom Tooth Pain

Wisdom tooth pain does not always arrive during business hours. If you develop sudden, severe pain — particularly with swelling, difficulty opening your mouth, or fever — it may indicate an acute infection such as pericoronitis or a dental abscess that needs prompt attention.

While you arrange an appointment:

• Rinse gently with warm salt water to help reduce bacteria around the affected area.
• Take over-the-counter anti-inflammatory pain relief as directed on the packaging.
• Apply a cold compress to the outside of your cheek to manage swelling.
• Avoid placing aspirin directly on the gum — this can cause a chemical burn to the tissue.

Divine Dental Care is open Saturdays, and we can often accommodate same-day appointments for patients in pain. Call us on (03) 9725 8040 — our reception team will do their best to fit you in, whether you are coming from Croydon, Mooroolbark, or anywhere along the Maroondah Highway corridor.