Wisdom teeth, also known as third molars, are the last set of teeth to develop, usually appearing between the ages of 17 and 25. While some people’s wisdom teeth grow in without issue, others find that theirs come in at odd angles—including sideways, pushing toward neighboring teeth. This is known as horizontal impaction, and it’s a common dental concern that often requires removal. Understanding why this happens can help you better prepare for treatment and avoid complications.
Lack of Space in the Jaw
One of the most common reasons wisdom teeth grow sideways is simply that there isn’t enough room in the jaw to accommodate them. Over time, human jaws have evolved to be smaller than those of our ancestors, who needed extra molars for grinding tough foods. Today, our diets are softer, and our jaws tend to be more compact, leaving limited space for wisdom teeth to erupt normally. When space is tight, these teeth may tilt or grow sideways beneath the gumline.
Misalignment of Existing Teeth
If your teeth are already crowded or misaligned, there may be even less room for your wisdom teeth to emerge. As they attempt to push through, they can collide with the roots of neighboring molars, causing them to shift. This not only leads to sideways growth but can also contribute to bite problems and increased discomfort.
Delayed or Incomplete Eruption
Wisdom teeth that only partially emerge—or fail to emerge at all—are known as impacted teeth. Horizontal impaction occurs when the tooth develops at a 90-degree angle beneath the gumline, pressing directly into the tooth beside it. Because the tooth cannot fully break through the gums, it remains trapped in an improper position.
Risks of Sideways Wisdom Teeth
When wisdom teeth grow sideways, they can cause more than just discomfort. The pressure they place on adjacent teeth can lead to pain, shifting teeth, and damage to the surrounding bone. Sideways growth also increases the risk of infection, as bacteria and food particles can become trapped around partially erupted teeth. This can result in swelling, gum disease, or the formation of cysts that may damage the jawbone.
When to See a Dentist or Oral Surgeon
If you experience symptoms such as jaw pain, swelling, tenderness, or difficulty opening your mouth, it’s important to seek a professional evaluation. X-rays can confirm the position of your wisdom teeth and determine whether removal is necessary. In many cases, oral surgeons recommend extracting sideways-growing wisdom teeth before they cause more serious problems.
The Importance of Early Intervention
Wisdom teeth removal is often easier and recovery quicker when performed before the teeth are fully developed. This is why many dentists recommend evaluating your wisdom teeth in your late teens or early twenties. Early treatment can help prevent crowding, infections, and damage to neighboring teeth.
Sideways wisdom teeth may be common, but they can pose significant risks if left untreated. Early diagnosis and care are the best ways to protect your oral health.
About the Practice
At the Oral & Facial Surgery Center of Virginia, you’ll find safe and effective cutting edge dental care for the removal of impacted wisdom teeth, including those that grow sideways. Dr. Shinwari uses advanced diagnostic tools and surgical techniques to minimize discomfort and promote a smooth recovery. With a patient-centered approach, we provide personalized care to protect your smile and oral health.
Call us at (703) 574-4717 or request an appointment online.