What Is A Central Incisor?

Central incisors are flat and thin, and they slice through food when you take a bite. Although upper and lower central incisors are similar shapes, they are different sizes. The upper central incisors are wide and the most prominent teeth in the human mouth. The lower central incisors are narrow and are smaller.

Functions of central incisors include:

• Supporting the shape and appearance of the lips.
• Helping to pronounce certain sounds, like "t" and "th," according to Multicultural Representations.
• Guiding the jaw into the correct position when the mouth closes.

A central incisor is often a baby's first tooth. The lower central incisors usually appear when the baby is 6 to 10 months old, according to the Cleveland Clinic. The upper central incisors follow between the ages of 8 to 12 months. Predictably, the central incisors are often the first teeth children lose, usually at 6 or 7 years of age.

Central incisors' prominent position in the mouth means that any discoloration, decay or chips are especially noticeable. Parents should clean their babies' first teeth as soon as they appear by brushing them twice a day with an age-suitable toothbrush that has extra soft bristles for gentle, yet effective cleaning.

Adults should also maintain a regular oral care routine and visit the dentist every six months to maintain the appearance of these front-and-center teeth. If the central incisors are poorly positioned, discolored or chipped, orthodontists and dentists can use braces, teeth whitening, veneers and a range of other treatments to fix the problem and improve the patient's smile.

A central incisor was probably the first tooth to erupt in your mouth when you were a baby. What's more, central incisors perform important roles in eating, speaking and maintaining the facial appearance and jaw position. Take care of your central incisors and speak to your dentist if you notice an issue with these teeth.