The upper and lower central incisors erupt at these times
What are 7-8years and 6-7years
This anatomical landmark is found in upper permanent lateral incisors, but not in lower permanent lateral incisors
What is the palatal pit
This is the geometric outline of the incisal surface of canines
What is diamond
This many developmental depressions are present on the upper permanent central incisor
What is 2 (separating the 3 mamelons)
This tooth is known for its fan shape
What is the lower permanent central incisor
The upper permanent central incisor has this geometric outline on its occlusal surface
What is triangular with the base labially and the apex lingually
Lateral incisors are made from this # of lobes and what is their distribution
What is 4 (3 labial and 1 lingual)
These are 2 characteristic features of upper permanent canines
What are 2 lingual fossae and longest root
Of all anterior teeth, this many will have distally twisted cingulums
What is 8
This is the order of eruption dates for incisors from earliest to latest
What is lower central, lower lateral/upper central, upper lateral
If the mesial outline is convex the distal outline will be ____ and if the mesial outline is concave, the distal outline will be ____
What are more convex and straight
These are the 3 main modifications to the lateral incisors as opposed to the central incisors
What are distally curved roots, distally sloping incisal edge, and distally twisted cingulum
This is a nickname for canines
What is the cornerstone tooth
The mesial surface of a permanent canine will show this many convex outlines
What is 3 (incisal ridge, cingulum, cervical ridge)
Upper incisors have this dimension greater than in lower incisors
What is width (M/D)
Describe the mesio-incisal and disto-incisal angles for both the upper and lower permanent central incisors
What is sharp mesial and rounded distal for upper and both sharp for lower
The incisal ridge of the lower lateral incisor is tilted ___ which allows for ____
What is distally for the tooth to follow the dental arch curvature
This is why upper permanent canines cause space problems in the mouth
What is permanent premolars erupt before upper canines which have the longest root therefore it will push labially to erupt
This is the order of incisors (upper and lower) from most pronounced elevations and depressions to least pronounced
What is upper lateral, upper central, lower lateral, lower central
Contact area on the mesial surfaces of anterior teeth are more ___ compared to the distal side except for which tooth
What is more incisally except for the upper permanent canine
The lingual outline of the mesial surface of the upper permanent central incisor can be described in what way and what do the outlines represent
What is convex incisally (incisal ridge), concave at the middle (lingual fossa), and convex cervically (cingulum)
These are all the elevations on the upper permanent lateral incisor lingual aspect
What are MMR, DMR, cingulum, and incisal ridge
These are the 3 differences between upper and lower canines
What are the straight mesial outline in upper/convex in lower, contact areas more cervical in lower, and cusp tip more pointed in lower
These are the names of all the linear elevations on the lingual aspect of the upper permanent canine
What are MMR, DMR, lingual ridge, distoincisal ridge, and mesioincisal ridge
The root outline for lower incisors is described as ____
What is nearly straight from the cervical line to the middle 1/3 then tapered to a pointed apex