A. Enamel (anterior teeth)
B. Enamel (Posterior teeth)
C. Dentin
D. Dentinoenamel junction
Related Mcqs:
- The odontoblasts killed during cavity preparation are derived from_____________?
A. Unaffected odontoblasts from the pulp
B. Undifferentiated cells
C. Histocytes
D. Osteoblasts - Difference between epithelium of oral cavity and cavity lining of cyst is ___________-?
A. Stratum corneum
B. Stratum lucidum
C. Stratum germinativum
D. Stratum spinosum - Which of the following bur is used in the preparation of cavity restored with porcelain fused to metal ?
A. Carbide bur
B. Diamond bur
C. Stainless steel bur
D. Diamond but for porcelain and carbide bur for metal - The first permanent tooth to erupt in the oral cavity is the_____________?
A. Mandibular central incisor
B. Mandibular first molar
C. Maxillary central incisor
D. Maxillary first molar - Cavity formation in a tooth, due to dental caries is due to______________?
A. Destructive potential of streptococcus mutans
B. Destructive potential of lactobacillus acidophilus
C. Lateral spread of caries along DE junction and weakening of the outer covering enamel
D. Mastectomy force and unrelated to the extent of carious process - Periodontal fibres joining cemental surface of one tooth, to cemental surface of adjacent tooth are called____________?
A. Gingivodental
B. Cemental fibres
C. Horizontal fibres
D. Transseptal fibres - If the pulp of a single rooted tooth canal were triangular in cross section with the base of the triangle located facially and the apex lingually with a longer mesial side than distal side; the tooth most likely is_____________?
A. Maxillary central incisor
B. Maxillary second premolar
C. Mandibular lateral incisor
D. Mandibular central incisor - The condition involved with an unerupted tooth or impacted tooth is _________________?
A. Dentigerous cyst
B. Mural ameloblastoma
C. Adenomatoid odontogenic tumor
D. All of the above - A 4 year old child with one tooth less than the normal dentition shows large tooth with two crowns and two root canals, the anamoly is______________?
A. Dilaceration
B. Fusion
C. Gemination
D. Concrescence - A tooth with a 3 month history of pain, which was worse when hot liquid were in mouth. After extraction, the tooth was split open. The pulp chamber was completely filled with pus. A few remnants of pulp tissue were found in apical end. The condition is:__________?
A. Acute partial pulpits
B. Acute total pulpits
C. Suppurative pulpitis
D. Strangulation of pulp
