Jonathan Lajoie (I) Jonathan Lajoie was born in 1980 in Montreal, QuÃ©bec, Canada. He is an actor, known for The League (2009), Let's Be Cops (2014) and Show Me Your Genitals (2008).
The tooth numbering continues by assigning teeth numbers descending to the lower left third molar (number 17) and follows the lower (mandibular) jaw up to the tooth farthest back on the bottom right side of the mouth (number 32).
In the original system, children's 20 primary teeth are numbered in the same order (from 1 to 20), except that a small letter d follows each number to indicate deciduous (primary) teeth. However, most dentists today use a modified version of the Universal Numbering System for children, with letters instead of teeth numbers.