Parents often worry about their toddler developing a fever during teething, especially when the larger two-year molars emerge. While many anecdotal accounts link teething with fever, understanding the scientific perspective is important.
Understanding Two-Year Molars
Two-year molars, also known as second molars, are typically among the last primary teeth to erupt. These large teeth usually appear between 23 and 33 months for the upper jaw and 23 and 31 months for the lower jaw. Positioned at the back of the mouth, these molars play a significant role in grinding food. Their emergence marks a stage in a toddler’s dental development.
Common Teething Signs
When teeth emerge, toddlers often display symptoms. Common signs include increased drooling, which can sometimes lead to a rash around the mouth. Toddlers also experience irritability and fussiness, along with a strong urge to chew on objects to relieve gum pressure. Swollen or tender gums are observed, and changes in eating patterns or disturbed sleep can also occur. These symptoms are mild to moderate and are direct responses to the tooth breaking through the gum line.
The Link Between Molars and Fever
While teething can cause discomfort, scientific consensus indicates it does not cause a true fever. A slight elevation in body temperature might occur due to gum inflammation, but this remains below 100.4°F (38°C). A temperature at or above 100.4°F (38°C) is considered a fever and is more likely a sign of an underlying illness rather than a direct result of teething.
Parents may associate fever with teething because tooth eruption often coincides with a time when toddlers are more susceptible to common childhood infections. Toddlers put objects in their mouths to relieve teething discomfort, which can expose them to germs and increase illness risk. Additionally, the stress and disturbed sleep from teething might temporarily weaken a child’s immune system, making them vulnerable to infections. Therefore, if a toddler develops a significant fever while teething, it is important to consider other potential causes.
When to Consult a Doctor
Parents should consult a doctor if their toddler develops a high fever, defined as 100.4°F (38°C) or higher. Medical attention is needed if the fever persists for more than 24 to 48 hours. Signs of severe illness, such as lethargy, difficulty breathing, a widespread rash, or persistent vomiting or diarrhea, require medical evaluation. While teething discomfort is a normal part of development, any concerning symptoms should be discussed with a healthcare professional to rule out other conditions.