FACTOID # 13: The United States spends more money on its military than the next 12 nations combined.
 
 Home   Encyclopedia   Statistics   Countries A-Z   Flags   Maps   Education   Forum   FAQ   About 
 
WHAT'S NEW
RECENT ARTICLES
More Recent Articles »
 

FACTS & STATISTICS    Simple view

  1. Select countries to view: (hold down Control key and click to select several)

     

     

    Compare:

     

     

  1. Select fact or statistic: (* = graphable)

     

     

     

  2. (OPTIONAL) Compare to statistic: (both need to be graphable)

     

     

     

  3. View result as:

     

       
(OR) SEARCH ALL encyclopedia, stats & forums:   

Encyclopedia > Mandibular second molar
Human Teeth
Maxillary teeth
Mandibular teeth
Mandibular second molar
Mandibular second molar
Mandibular second molars of permanent and primary teeth marked in red.

The mandibular second molar is the tooth located distally (away from the midline of the face) from both the mandibular first molars of the mouth but mesial (toward the midline of the face) from both mandibular third molars. This is true only in permanent teeth. In deciduous (baby) teeth, the mandibular second molar is the last tooth in the mouth and does not have a third molar behind it. The function of this molar is similar to that of all molars in regard to grinding being the principle action during mastication, commonly known as chewing. Though there is more variation between individuals to that of the first mandibular molar, there are usually four cusps on mandibular second molars: two on the buccal (side nearest the cheek) and two palatal (side nearest the palate). There are great differences between the deciduous (baby) mandibular molars and those of the permanent mandibular molars, even though their function are similar. It is important to note that the permanent mandibular molars are not considered to have any teeth that precede it. Despite being named molars, the deciduous molars are followed by permanent premolars. The maxillary sinus is the largest paranasal sinus. ... Types of teeth Molars are used for grinding up foods Carnassials are used for slicing food. ... Incisors are the first kind of tooth in heterodont mammals. ... The premolar teeth or bicuspids are transitional teeth located between the canine and molar teeth. ... Molar 47 (left), molar 46 and premolar 45(right) Molars are the rearmost and most complicated kind of tooth in most mammals. ... The mandible (inferior maxillary bone) (together with the maxilla) is the largest and strongest bone of the face. ... Types of teeth Molars are used for grinding up foods Carnassials are used for slicing food. ... Incisors are the first kind of tooth in heterodont mammals. ... The mandibular central incisor is the tooth located adjacent to the midline of the face and is mesial (toward the midline of the face) from both mandibular lateral incisors. ... The mandibular lateral incisor is the tooth located distally (away from the midline of the face) from both mandibular central incisors of the mouth and mesially (toward the midline of the face) from both manibular canines. ... The mandibular canine is the tooth located distally (away from the midline of the face) from both mandibular lateral incisors of the mouth but mesially (toward the midline of the face) from both mandibular first premolars. ... The premolar teeth or bicuspids are transitional teeth located between the canine and molar teeth. ... The mandibular first premolar is the tooth located laterally (away from the midline of the face) from both the mandibular canines of the mouth but mesial (toward the midline of the face) from both mandibular second premolars. ... Molar 47 (left), molar 46 and premolar 45(right) Molars are the rearmost and most complicated kind of tooth in most mammals. ... The mandibular first molar is the tooth located distally (away from the midline of the face) from both the mandibular second premolars of the mouth but mesial (toward the midline of the face) from both mandibular second molars. ... Types of teeth Molars are used for grinding up foods Carnassials are used for slicing food. ... Faces of Mother, Child. ... The mandibular first molar is the tooth located distally (away from the midline of the face) from both the mandibular second premolars of the mouth but mesial (toward the midline of the face) from both mandibular second molars. ... Sagittal section of nose mouth, pharynx, and larynx. ... ... A molar is the fourth kind of tooth in mammals. ... Mastication or chewing is the process by which food is torn and/or crushed by teeth. ... In common parlance, a cusp is an important moment usually regarded as a decision point upon which consequent events are determined. ... The palate is the roof of the mouth in humans and vertebrate animals. ... ...


In the universal system of notation, the deciduous mandibular second molars are designated by a letter written in uppercase. The right deciduous mandibular second molar is known as "T", and the left one is known as "K". The international notation has a different system of notation. Thus, the right deciduous mandibular second molar is known as "85", and the left one is known as "75".


In the universal system of notation, the permanent mandibular second molars are designated by a number. The right permanent mandibular second molar is known as "31", and the left one is known as "18". In the Palmer notation, a number is used in conjunction with a symbol designating in which quadrant the tooth is found. For this tooth, the left and right second molars would have the same number, "7", but the right one would have the symbol, "┐", underneath it, while the left one would have, "┌". The international notation has a different numbering system than the previous two, and the right permanent mandibular second molar is known as "47", and the left one is known as "37".


References

  • Ash, Major M. and Stanley J. Nelson, 2003. Wheeler’s Dental Anatomy, Physiology, and Occlusion. 8th edition.


 

COMMENTARY     


Share your thoughts, questions and commentary here
Your name
Your comments
Please enter the 5-letter protection code

Want to know more?
Search encyclopedia, statistics and forums:

 


Lesson Plans | Student Area | Student FAQ | Reviews | Press Releases |  Feeds | Contact
The Wikipedia article included on this page is licensed under the GFDL.
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms.