Parents often notice a permanent tooth emerging directly behind a primary tooth in their 5-year-old, a phenomenon sometimes called “shark teeth.” This is a common stage in a child’s dental development. Understanding this process can help parents know what to expect and when to seek professional dental advice.
Understanding This Common Occurrence
The appearance of a new permanent tooth behind an existing baby tooth is common. Permanent teeth typically begin to erupt around age six, developing behind and slightly below the roots of the primary teeth. As the permanent tooth pushes upward, its crown presses against the baby tooth’s root. This pressure triggers root resorption, a natural process where specialized cells gradually dissolve the baby tooth’s root structure. This resorption causes the baby tooth to loosen, allowing it to fall out naturally.
Sometimes, the permanent tooth emerges before the baby tooth’s root has fully resorbed or before it has sufficiently loosened. When this occurs, both teeth are visible simultaneously, creating the “shark teeth” appearance. In many instances, the baby tooth will continue to loosen and fall out on its own, even with the permanent tooth present.
When a Dentist’s Visit is Recommended
While often normal, certain signs indicate a professional dental evaluation is beneficial. A dentist visit is recommended if the baby tooth remains firmly in place for several weeks after the permanent tooth has visibly erupted behind it. Persistent discomfort, pain, or difficulty with chewing or speaking also warrants an appointment. These symptoms suggest the baby tooth might be impeding the permanent tooth’s proper eruption.
If the newly emerged permanent tooth appears significantly misaligned or impacted, a dentist should assess the situation. Concerns regarding maintaining proper oral hygiene due to the crowded presence of both teeth are also valid reasons for a visit. In such cases, the dentist might recommend extracting the baby tooth to provide adequate space for the permanent tooth to move into its correct position.
After the Baby Tooth is Gone
Once the baby tooth has fallen out naturally or been extracted by a dentist, the newly emerged permanent tooth usually finds its designated spot. The child’s tongue plays a significant role in this process. Its constant gentle pressure helps guide the permanent tooth forward into the vacated space, encouraging proper alignment within the dental arch.
Maintaining excellent oral hygiene is particularly important for newly erupted permanent teeth. Their enamel is not yet fully matured, making them more susceptible to decay. Regular brushing and flossing are crucial to protect these vulnerable teeth from cavities. Ongoing dental check-ups are also important for monitoring the proper eruption and alignment of all permanent teeth.