Gaps Between Baby Teeth
The short answer
Gaps and spaces between baby teeth are actually a very good sign. Pediatric dentists consider spacing between primary teeth to be normal and even desirable because these gaps indicate there will likely be enough room for the larger permanent teeth to come in properly. About two-thirds of children have some spacing between their baby teeth.
Thousands of parents search for this exact thing. You are not alone.
By Age
What to expect by age
0-3 months
Teeth have not yet erupted, so spacing is not applicable at this age. The jaw is still developing and will continue to grow significantly during the first few years of life.
3-6 months
As the first teeth begin to erupt, parents may notice gaps between the lower front teeth. This is completely normal and expected as baby teeth are naturally smaller relative to the jaw.
6-12 months
With more teeth appearing, spacing between them is common and healthy. The gaps you see are often called primate spaces or developmental spaces. These spaces serve an important purpose by reserving room for the permanent teeth, which are larger than baby teeth.
12 months+
As more baby teeth come in through age 3, the jaw continues growing, and spaces may become more or less visible. Crowded baby teeth (no spaces at all) can actually be more concerning because it may indicate insufficient room for permanent teeth. Regular dental visits will help monitor spacing and jaw development.
What Should You Do?
When to take action
- You see small gaps between the front baby teeth, especially the upper front teeth
- The spaces between teeth are relatively even and symmetrical
- Your child has gaps but teeth appear healthy with no discoloration
- Your dentist has confirmed the spacing is developmentally appropriate
- A very large gap between the upper front teeth (diastema) is accompanied by a thick piece of tissue (frenulum) between them
- Your child's baby teeth are very crowded with no spacing at all, which may indicate future orthodontic needs
- A gap suddenly appears where there was not one before, which could indicate a missing or damaged tooth
- A gap appeared suddenly due to trauma and a tooth was knocked out or displaced, as baby dental injuries need prompt evaluation
- The gum tissue between a gap appears swollen, discolored, or has a visible lump, which could indicate a cyst or other issue
Sources
Related Resources
Trust your instincts. If something feels wrong, reach out to your pediatrician.
Worrying about your baby means you care. That is a good thing.
Related Medical Concerns
My Baby's Head Shape Looks Abnormal
Many babies develop temporary head shape irregularities that are completely normal. A cone-shaped head from vaginal delivery reshapes within days. Mild positional flattening (plagiocephaly) from sleeping on the back is very common and usually improves with repositioning and tummy time. However, head shape changes involving ridges, a persistently bulging fontanelle, or rapid head growth changes should be evaluated to rule out craniosynostosis.
Achondroplasia (Dwarfism) in Babies
Achondroplasia is the most common form of short-limbed dwarfism, affecting about 1 in 15,000 to 40,000 births. It is caused by a mutation in the FGFR3 gene and is usually apparent at birth with characteristic features including short limbs, a larger head, and a prominent forehead. Intelligence is normal. With monitoring for specific complications and supportive care, children with achondroplasia lead full, active, and independent lives.
Adenoid Hypertrophy and Breathing
Adenoids are lymphoid tissue located behind the nose that help fight infection in young children. When adenoids become enlarged (adenoid hypertrophy), they can block the nasal airway, causing chronic mouth breathing, snoring, nasal speech, and sleep-disordered breathing. Enlarged adenoids are most common between ages 2-7 and are a leading cause of obstructive sleep apnea in young children. Treatment ranges from watchful waiting and nasal steroids to surgical removal (adenoidectomy) if breathing or sleep is significantly affected.
How to Advocate for Your Child's Needs
You know your child better than anyone, and your observations matter. If you feel something is not right with your child's development or health, you have every right to ask questions, request evaluations, and seek second opinions. Advocating for your child is not being difficult - it is being a good parent.
Air Quality and Baby Health
Babies and young children are more vulnerable to air pollution than adults because they breathe faster, their lungs are still developing, and they spend more time close to the ground where some pollutants concentrate. The EPA recommends keeping babies indoors when the Air Quality Index (AQI) exceeds 100 (orange level). During wildfire smoke events, keep windows closed, use air purifiers with HEPA filters, and monitor your child for coughing, wheezing, or difficulty breathing. Long-term exposure to air pollution can affect lung development.
Are Allergies Linked to Neurodivergence in Children?
Research has found statistical associations between atopic conditions (eczema, food allergies, asthma) and certain neurodevelopmental differences such as ADHD and autism spectrum disorder. However, having allergies does not mean your child will be neurodivergent, and most children with allergies develop typically. These conditions may share some underlying immune and genetic pathways, but one does not cause the other.