ASSISTING CERTIFICATION TEST PAPER
QUESTIONS AND SOLUTIONS GRADED A+
◉ Mandibular Incisors- Lingual. Answer: Lingual surface is smooth
Lingual fossa-found between marginal ridges above cingulum or at
incisal third
Cingulum is evident
No other tooth in the mouth, except the mandibular lateral incisor,
show so few developmental lines and groves
◉ Mandibular Incisors- Mesial. Answer: Lingual outline-concave
above cingulum
Cervical line-curves incisally-less than on mesial
Cervical line-marked, curved incisally
, 4. Mesial surface of the crown is convex and smooth at incisal one-
third and then flattens
◉ Mandibular Incisors- Distal. Answer: Cervical line-curves
incisally-less than on mesial
Distal surface is similar to the mesial surfaces
◉ Mandibular Incisors- Incisal. Answer: Incisal edge-almost at right
angle to line bisecting crown labio-lingually
2. Labial surface-see more than lingual surface
◉ Mand lateral incisors- labial. Answer: Tooth is asymmetrical-right
side (M) does not match the left (D) side of lateral
Lateral incisor is somewhat larger than the mandibular central
(exact opposite of maxillary incisors)
Mesial side is somewhat longer than the distal side-slopes
downwards somewhat
, Incisal ridge-slopes downward in a distal direction
Crown is somewhat longer than mandibular central incisor
Mesial Surface and Distal Surface
◉ Mand Lateral incisors- lingual. Answer: Lingual form-poorly
formed
Cingulum-off centered toward distal
◉ Mand Lateral incisors- incisal. Answer: 1. Incisal edge-is not at
approximate right angle to a line bisecting the crown labiolingually.
◉ Max canine- labial. Answer: Crown is narrower mesiodistally than
maxillary central incisor (the mandibular
canine more so than the maxillary canine)
Cusp tip is in a line with the center of the root
Mesial and distal cusp ridge-mesial cusp is shorter