NEET MDS Shorts
95736
Dental Anatomy9 months of age, is the usual eruption time for primary lower lateral incis
43886
Dental Anatomy
Interglobular Dentin:
Sometimes, mineralization of dentin begins in small globular areas that fail to coalesce into a homogenous mass. This results in zones of hypomineralization between the globules.
These zones are known as globular dentin or interglobular spaces. Thus, demonstrating defect of mineralization and not of matrix formation, the dentinal tubules pass uninterruptedly through interglobular dentin.
95591
Dental Anatomylateral incisor is most often missing congenitally
72434
Dental Anatomy
Well over 50% of maxillary 1st molars have two canals in the mesiobuccal root. Some authors cite the number as high as 90%. There are usually 3 roots and 4 canals in a maxillary 1st molar.
The fourth canal, the mesiolingual canal, is also referred to as: the accessory mesiobuccal canal, mesiocentric, mesiopalatal canal or MB2.
It is usually tough to find MB2 through clinical inspection and it is not obvious on a radiograph. A dentist should expect it is present before beginning a root canal on the first maxillary molar.
60063
Dental AnatomyIn the case of primary teeth, the roots are often resorbed as the permanent teeth develop. The facial aspect of the root tends to be the last area to undergo resorption due to its position and the way the succedaneous tooth exerts pressure. The facial root surface is generally more stable and remains attached to the gingiva longer than the other aspects, making it the longest and most securely attached during extraction.
44156
Dental AnatomyA mandibular primate space is usually found in the primary dentition between canine and first molar
64908
Dental AnatomyThe primary mandibular central incisors usually erupt at 6-8 months
24825
Dental AnatomyThe first teeth to erupt in the dental arches of the human being are the, primary mandibular central incisors
20757
Dental AnatomyA permanent tooth erupting in the mouth of an 11 years old child is most likely mandibular second bicuspid
62072
Dental AnatomyThe beginning of active eruption of a human tooth occurs after one half of the root is formed