EFDA ENTRANCE EXAM LATEST 2023 -2024
REAL EXAM 100 QUESTIONS AND CORRECT
ANSWERS (DETAILED ANSWERS)
Mixed dentition - ANSWER- •Permanent and primary teeth present at the same time • Usually Between 6 years and 13 years of age
Occlusion - ANSWER- Normal occlusion -Buccal cusps of maxillary teeth occlude with the buccal surface of mandibular teeth
Ridges - ANSWER- Marginal Ridge -Is the name of the area that forms the mesial and distal borders of the occlusal surface!!-Found on borders lingual surfaces of anterior teeth, but on posterior teeth this ridge is found on the occlusal surface
Landmarks of Individual Teeth - ANSWER- Maxillary centrals are larger than lateral incisors are the most prominent in the mouth. Not true for mandibular incisors (central is smaller than the lateral).
When the tooth is newly erupted, mamelons will be seen on the incisal ridge.
Cingulum are common ONLY to anterior teeth.
Special Landmarks on Maxillary Central Incisors - ANSWER- Marginal ridges- raised rounded borders on mesial and distal
Special Landmarks on Maxillary Lateral Incisors - ANSWER- More narrow mesiodistally than central incisor
Mandibular Incisors - ANSWER- Mandibular incisors have smaller mesiodistal dimensions than any other teeth
- / 3
Tooth is bi symmetrical (right side matches left side) for central. Lateral is asymmetrical
Lingual Surfaces - ANSWER- 4.No other tooth in the mouth, except the mandibular lateral incisor, show so few developmental lines and groves
Labial Surfaces - ANSWER- Tooth is asymmetrical-right side (M) does not match the left (D) side of lateral
2.Lateral incisor is somewhat larger than the mandibular central (exact opposite of maxillary incisors)
Maxillary and mandibular canines - ANSWER- Only teeth with a single cusp
Are the longest teeth in the mouth, also are very strong
Mandibular canine is not as well developed as maxillary canine. The mandibular canine cusps ridges are thinner labiolingually.
Labial Surface of Mandibular Canine - ANSWER- Cingulum is poorly developed
Maxillary Premolars - ANSWER- Term bicuspid presupposes two cusps' however; this term is misleading, since mandibular premolars show a variation in the numbers of cusps from one to three
Premolars replace the primary molars
Second premolar may have a crown that is noticeably smaller cervico-occlusally and also mesiodistally than first premolar
With the exception of the third molars, the greatest variation in the occlusal anatomy is found on the mandibular second premolars when comparing all premolars
Mesial Surfaces - ANSWER- Crosses mesial marginal ridge and terminates lingual to mesial contact point. Remember we can ID a tooth by difference in groove placement
- / 3
Occlusal Surfaces - ANSWER- Six- sided or hexagonal figure (MB, ML, M, DB, DL and D)
Four developmental grooves join the central groove inside marginal ridge (MB, ML, DB and DL)
Landmarks of maxillary second pre molars Mesial and Distal Surfaces - ANSWER- No mesial marginal groove; however, remember the maxillary first premolar does possess a mesial marginal goove.
Mandibular premolars - ANSWER- Mandibular first premolars are developed from four lobes (3 buccal and 1 lingual) and mandibular premolars are in most instances developed from five lobes (3 buccal and 2 lingual)
First premolar is always smaller than the second premolar (opposite is true of maxillary premolars)
Specific Landmarks of Mandibular First Premolar Lingual Surfaces - ANSWER- Lingual cusp is always small—Least developed of all premolars
Specific Landmarks of Mandibular Second Premolar Occlusal Surfaces - ANSWER- Three cusp type appears-square. Two cusp type appears round
Grooves form a Y in 3 cusp type.
Maxillary Molars - ANSWER- Marginal ridges are found on occlusal surfaces of posterior teeth
Only maxillary molars possess an oblique ridge. Separates the central and distal occlusal fossa
Specific Landmarks of Maxillary First Molar Occlusal surfaces - ANSWER- Oblique ridge transverses across the occlusal surface-it runs from the tip of ML cusp to the tip of DB cusp.
Maxillary Second Molar - ANSWER- No fifth cusp on max 2nd molars
- / 3