Question: Which among the following is NOT a common finding of the decidous dentition ?

• 1. Tight contacts, absence of spacing
• 2. Shallow overjet and overbite
• 3. Flush terminal plane
• 4. Ovoid arch form

Question: The sharpest cusp of primary first molar tooth is____________?

• 1. Mesiobuccal
• 2. Distobuccal
• 3. Mesiolingual
• 4. Distolingual

Question: Difference between primary and permanent enamel is_______________?

• 1. In prism arrangement
• 2. in mineral content
• 3. No difference in enamel, difference in dentin
• 4. None of the above

Question: Among the difference between teeth in the decidous and the permanent dentition is that_____________?

• 1. Buccal surfaces of the permanent molars are flatter
• 2. Cervical ridges are more pronounced in permanent molars
• 3. Root trunks of decidous teeth are larger compared with their overall root lengths
• 4. Crowns of decidous incisors are wider mesiodistally than their cervico incisal lengths

Question: Mesiodistal width is more than cervico- incisal length of crown in_____________?

• 1. Permanent central incisors
• 2. Decidous maxillary central incisors
• 3. Permanent maxillary canines
• 4. Permanent mandibular lateral incisors

Question: The highest ( longest ) and sharpest cusp on the decidous mandibular first molar is____________?

• 1. Mesiolingual
• 2. Distolingual
• 3. Mesiobuccal
• 4. Distobuccal

Question: Transverse ridge is prominent on occlusal surface of which of the following decidous teeth ?

• 1. Mandibular first molar
• 2. Maxillary first molar
• 3. Mandibular second molar
• 4. Maxillary second molar

Question: Primary teeth differ from permanent teeth in following aspects ?

• 1. Thickness of enamel and dentin
• 2. Pulp chambers are longer
• 3. Roots are flaring
• 4. All of the above

Question: Pulp chambers and roots canals in decidous teeth______________?

• 1. Wide and deep
• 2. Shallow and narrow
• 3. Wide and narrow
• 4. Shallow and wide

Question: When viewed occlusally, a primary mandibular second molar closely resembles which of the following mandibular teeth ?

• 1. Permanent second molar
• 2. Permanent first molar
• 3. Second premolar
• 4. Primary first molar