Why is there a difference in the number of roots in teeth ?
why does the mandibular 1st molar have 2 roots and the maxillary 1st molar have 3 roots Why does the upper first molar have 3 roots and the lower first molar have two? I am a dental student and there has to be a reason for this and I want to know why?
Hi, the possible reason for mandibular molar having 2 roots as compared to the maxillary molars could be the density of mandible. As you must be knowing mandible is much more dense than maxilla. Hence maxillary molars have 3 roots to give them a firm support and strength in the porous bone. Mandibular molars do not require that kind of strength because mandible is itself very thick.
Answered: Fri, 7 Jan 2011
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