Mandibular Lateral Incisors Flashcards
When do the mandibular lateral incisors…
calcify
erupt
root complete
calcify- begins around 4 months
erupt- 7-8yrs old
root completion: 10yrs old
Compared to mn centrals, mn lateral incisors are __________.
larger
The ______ lobe is more developed on mn lateral incisors than mn central incisors.
distal
FACIAL VIEW: where is the height of contour?
cervical 1/3rd
FACIAL VIEW: which incisal angle is more rounded, mesial or distal?
distal
FACIAL VIEW: where is the mesial proximal contact?
incisal 1/3rd
FACIAL VIEW: where is the distal proximal contact?
incisal 1/3rd *slightly more cervical than mesial contact
LINGUAL VIEW: the cingulum on mn laterals incisors is more or less developed than on mn centrals
more developed *still barely visible
LINGUAL VIEW: the marginals ridges of mn laterals incisors are _______ developed than that of mn centrals.
more
LINGUAL VIEW: the lingual fossa on mn laterals incisors are _______ than those seen on mn centrals.
deeper
LINGUAL VIEW: the cingulum offsets toward the….
distal
MESIAL/DISTAL VIEW: which surface is more rounded, mesial or distal?
distal
MESIAL/DISTAL VIEWS: which surface is shorter inciso-gingivally, mesial or distal
distal
MESIAL/DISTAL VIEWS: the cervical line curves less on the _______.
distal
INCISAL VIEW: mn lateral incisors look ______ on its base.
twisted *due to cingulum being displaced distally
What type of root do mn lateral incisors have?
single root
Compared to mn centrals, mn lateral incisor roots are……
longer, wider, thicker, straighter
The root canal of mn laterals incisors are ______ than that of mn centrals.
larger
