Finding out that a wisdom tooth is growing sideways can bring up a lot of questions. For many people, the discovery happens during a routine dental visit or when a strange, dull ache begins to develop at the very back of the mouth. It is incredibly common to wonder whether an extraction is truly necessary, especially if the tooth is not causing constant or severe pain.
In the past, it was relatively standard practice to remove wisdom teeth as soon as they appeared, regardless of whether they were causing immediate problems. Today, dental guidance in the UK follows a much more considered, evidence-based approach. Whether or not you need a sideways wisdom tooth removed depends entirely on how it is affecting the rest of your mouth and whether it poses a genuine risk to your long-term oral health.
Understanding impacted and sideways wisdom teeth.
Wisdom teeth, or third molars, are the final set of teeth to emerge, typically appearing between the ages of 17 and 25. Because they are the last to arrive, there is often simply not enough space left in the jaw to accommodate them.
What does it mean when a tooth grows sideways?
When a wisdom tooth lacks the space to erupt vertically into its proper position, it can become trapped underneath the gums or bone, a state known as impaction. When it grows sideways, it is often referred to as a mesioangular or horizontal impaction. This means the tooth is tilted forward, pointing directly toward the back of the second molar next to it, or lying completely flat within the jawbone.
The UK clinical guidelines on removal
In the UK, dental practitioners follow strict criteria established by the National Institute for Health and Care Excellence (NICE). These guidelines state that wisdom teeth that are completely buried, impacted, and not causing any clinical pathology or symptoms should not be removed routinely.
This policy protects patients from undergoing unnecessary surgical procedures. However, if a sideways tooth begins to trigger specific problems, or if a clinical assessment reveals that damage is occurring beneath the surface, removal becomes a highly appropriate recommendation to protect the health of the mouth.
The common risks of leaving a sideways wisdom tooth alone
While a sideways tooth might remain quiet for a long period, its unnatural position can create a series of structural and biological challenges within the mouth over time.
Damage to the neighbouring molars
One of the primary concerns with a horizontally tilted wisdom tooth is the pressure it exerts on the adjacent second molar. As the wisdom tooth tries to push forward, it presses directly against the root or crown of the healthy tooth next to it.
This constant pressure can cause a process known as root resorption, where the body begins to dissolve the root structure of the second molar. Furthermore, the tight, unnatural angle creates a small gap between the two teeth that is impossible to clean effectively, leading to deep decay in both teeth.
Persistent plaque traps and pericoronitis
When a sideways wisdom tooth partially breaks through the gum surface, it creates a small flap of tissue over the crown of the tooth, known as an operculum.
- Food particles and daily plaque bacteria easily become trapped underneath this loose flap of gum.
- Because the area is at the very back of the mouth and awkwardly angled, standard toothbrushes and dental floss cannot reach inside to clean it.
This trapped debris frequently leads to a localised infection called pericoronitis. Symptoms include painful swelling, an unpleasant taste in the mouth, difficulty opening the jaw fully (trismus), and sometimes swollen lymph nodes in the neck.
Cyst development
In rare instances, the fluid-filled sac that surrounds the wisdom tooth during its development inside the jawbone can fill with fluid, forming a cyst. As the cyst slowly expands, it can damage the surrounding jawbone, nerve tissue, and the roots of the nearby healthy teeth. If a cyst is detected on a dental X-ray, extraction of the tooth and removal of the cyst is almost always essential.
How a dentist assesses a sideways wisdom tooth
Determining the right course of action requires a detailed clinical evaluation rather than relying on visual observation alone.
Clinical examinations and diagnostic imaging
During a consultation, a dental practitioner will examine the back of your mouth to check for signs of inflammation, bleeding, or localised decay. However, because a significant portion of a sideways tooth remains hidden beneath the gum and bone, diagnostic imaging is crucial.
A panoramic dental X-ray, or sometimes a digital CBCT scan, allows the clinician to see the exact angle of the tooth, the length and shape of its roots, and how close those roots are to the main dental nerve that runs through the lower jaw (the inferior alveolar nerve). This detailed map helps the clinician weigh the benefits of removal against any potential surgical risks.
What to expect if removal is recommended
If your clinical assessment demonstrates that the sideways tooth is causing recurrent infections, decay, or damage to the adjacent molar, your dental team will discuss the extraction process with you clearly.
The extraction procedure
Removing a sideways wisdom tooth is generally considered a minor surgical procedure because the tooth is trapped beneath the surface. The area is completely numbed using local anaesthetic, ensuring you feel no sharp pain during the process, only a sensation of pressure.
To remove a horizontally angled tooth safely, the clinician often gently divides the tooth into a few smaller sections. This technique allows each piece to be removed comfortably through a much smaller opening, minimising the impact on the surrounding bone and accelerating the healing process.
Recovery and aftercare
Following the extraction, a small amount of swelling and mild discomfort are perfectly normal for a few days. Your dental team will provide comprehensive aftercare instructions, which typically include:
- Eating soft foods like soups, yoghurts, and mashed vegetables for the first few days.
- Avoid vigorous rinsing or drinking through a straw to protect the healing blood clot in the socket.
- Managing any discomfort with routine over-the-counter painkillers as advised by your clinician.
Arranging a local consultation
Deciding how to manage an impacted tooth requires an individual approach based on your unique anatomy and symptoms. For residents living near the south coast looking for clear guidance, arranging a comprehensive check-up with a local practice can provide peace of mind.
The Ackerman Clinic provides thorough clinical examinations and detailed diagnostic X-rays to assess the positioning of developing teeth. Consulting a dentist in New Milton allows you to receive a factual breakdown of your oral health, helping you understand whether your wisdom tooth can safely be left under observation or if a gentle extraction is the best step forward for your long-term comfort.
Sideways wisdom teeth FAQs
Can a sideways wisdom tooth move my other teeth and cause crowding?
While many people notice their front teeth shifting around the time their wisdom teeth attempt to come through, modern dental research indicates that wisdom teeth do not exert enough forward pressure to cause widespread crowding on their own. Shifts in alignment are usually due to natural, age-related changes in the jawbone rather than the third molars.
What happens if I choose to ignore a sideways wisdom tooth that is causing mild pain?
Ignoring intermittent pain or a dull ache can allow a localised infection or deep decay to progress. Over time, an untreated infection beneath the gum flap can spread to the cheek or neck, becoming significantly more uncomfortable and difficult to manage. Early evaluation helps address the underlying cause before complications arise.
How long does the recovery take after a surgical wisdom tooth extraction?
Most patients find that the initial swelling and tenderness peak within the first 48 hours and gradually subside over the course of a week. Most individuals are able to return to their normal work or school activities within two to three days, provided they follow their post-operative care guidance carefully.
Are there any risks involved in removing a deeply impacted wisdom tooth?
As with any minor surgical procedure, there are inherent risks, including localised infection, temporary bleeding, or a condition called dry socket, where the blood clot dislodges early. For lower wisdom teeth, there is also a small risk of temporary or, very rarely, permanent altered sensation in the lip, tongue, or chin if the roots sit very close to the main dental nerve. Your clinician will discuss these factors with you using your X-rays before any decision is made.
Why do some sideways wisdom teeth never cause any symptoms at all?
If a horizontal wisdom tooth remains completely encased within the jawbone and is deeply buried beneath the gum line, bacteria from the mouth cannot reach it to cause an infection. If it is not pressing against the roots of the second molar, it can remain completely quiet and trouble-free for a lifetime, requiring nothing more than periodic monitoring during your routine dental check-ups.
