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).
Universal Numbering System. Tooth number 1 is the tooth farthest back on the right side of your mouth in the upper (maxillary) jaw. Numbering continues along your upper teeth toward the front and across to the tooth farthest back on the top left side (which is number 16).
For example: 1  If a person has all of their teeth except for their wisdom teeth, their teeth will be numbered 2 thru 15 and 18 thru 31. 2  If a person has had their lower right first molar extracted (tooth #30), the teeth on either side of this tooth space will still keep the numbers 29 and 31.