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).
Best Answer: that is no always correct! a mandibular (lower) molar has only two roots and the maxillary (upper) first premolar has 2 roots. chief differences between the two are in he position in mouth and the size shape of the two. premolars are the 4th and 5th teeth in each quadrant(a quadrant is if you divide your mouth,by an imaginary line, into 4 parts.