Dental Development: Which Teeth Grow in & At What Ages?
- Feb 13
- 2 min read
Parents who have young children tend to want to know which teeth grow in first and at what ages - a question that Dentistry in Streetsville in Mississauga is pleased to answer.
By the time your infant is two to three years old, the full number of 20 primary teeth (baby teeth) will have grown in. The actual time when teeth grow in or fall out often varies - and there are certain age timelines for each type of tooth. As well, teeth tend to appear symmetrically (on the left and right) at the same time. There are five types of primary teeth: central incisors, lateral incisors, canines, first molars and second molars. The age ranges for the appearance of types of primary teeth are as follows.
Upper Teeth
Central incisor: Appears at eight to 12 months and is lost at six to seven years.
Lateral incisor: Appears at nine to 13 months and is lost at seven to eight years.
Canine (cuspid): Appears at 16 to 22 months and is lost at 10 to 12 years.
First molar: Appears at 13 to 19 months and is lost at nine to 11 years.
Second molar: Appears at 25 to 33 months and is lost at 10 to 12 years.
Lower Teeth
Central incisor: Appears at six to 10 months and is lost at six to seven years.
Lateral incisor: Appears at 10 to 16 months and is lost at seven to eight years.
Canine (cuspid): Appears at 17 to 23 months, and is lost at nine to 12 years.
First molar: Appears at 14 to 18 months, and is lost at nine to 11 years.
Second molar: Appears at 23 to 31 months, and is lost at 10 to 12 years.
Permanent teeth begin to make their appearance by age six or seven. Generally known as “first permanent molars,” these teeth come in at the back of the mouth behind the last primary teeth. They do not replace any primary teeth. As you’ll note in the above list, children begin to lose their primary teeth at about age six and will generally continue to lose them till about age 12.
It’s important to keep in mind that a young child’s teeth and oral health need to be monitored. Those in Mississauga and the surrounding regions will benefit from the expertise of Dentistry in Streetsville. Our clinic specializes in a wide range of dental services for the entire family, with a special focus on dental services for children. Our clinic welcomes new patients and would be more than happy to discuss any questions you may have regarding dentistry as it concerns you, your children or other members of the family.
Contact us at Dentistry in Streetsville by calling 905-821-8221 or emailing reception@dentistryinstreetsville.com. Dentistry in Streetsville is located at 100 Queen Street South, Suite 101, in Mississauga, Ontario. Also, visit us on Facebook and Instagram at DentistryInStreetsville.