A. Straight
B. Shallow
C. Bent
D. Curved
Related Mcqs:
- A 4-year old child has a normal complemented of primary teeth but they are gray and exhibit extensive occlusal and incisal wear. Radiographic examination indicates extensive deposits of secondary dentin in these teeth. Most likely this condition is______________?
A. Neonatal hypoplasia
B. Amelogenesis imperfecta
C. Cleidocranial dysplasia
D. Dentinogenesis imperfecta - Interwining of the enamel rods at the cusp timps and the incisal edges of a tooth is called______________?
A. Enamel spindles
B. Gnarled enamel
C. Incremental lies of woven
D. Incremental lines of retzius - Ratio of diameter of enamel rods in the DEJ to the enamel surface is______________?
A. 1:4
B. 1:1
C. 1:2
D. 2:1 - Dark bonds that are present in enamel rods at intervals of 4 μms are______________?
A. Neonantal bands
B. Cross striations
C. Striae of Retzius
D. Hunter-Schregar bands - The primary teeth that present the most outstanding morpholgic deviations from permanent teeth are______________?
A. Central incisors
B. Mandibular first molar
C. Mandibular second molar
D. Canines - The incisal edges and the incisal thirds of facial surfaces of mandibular incisors and canines generally oppose lingual surfaces of maxillary incisor and canines _____________?
A. Within the incisor thirds
B. At the junction of middle and cervical thirds
C. At the linguo cervical ridges
D. Immediately incisal to cingulam - The widest incisal embrasure is normally found between which of the following permanent maxillary teeth _____________?
A. Central incisors
B. Central and lateral incisors
C. Lateral incisor and canine
D. First and 2nd premolar - The direction of enamel rods in decidous teeth is_____________?
A. Same as permanent teeth
B. Inclined in an apical direction in the cervical third of crown
C. Inclined in an occlusal direction in the cervical third of crown
D. None of the above - While charting the dentition of a child, the pedodontist finds that the following teeth are present in all the four quadrants; permanent central incisor , permanent lateral incisor , decidous cuspid , decidous first molar, decidous 2nd molar and permanent 1st molar. The eruptive pattern may be considered most nearly normal for a child aged_____________?
A. 3-6 years
B. 7-10 years
C. 11-14 years
D. 15- 18 years - Peg-shaped incisors which taper towards the incisal edge are typically seen in all of the following conditions EXCEPT______________?
A. Congenital syphilis
B. Rickets
C. Anhidrotic ectodermal dysplasia
D. Supernumerary teeth
