Histology, derived from the Greek words “histo,” meaning tissue, and “logy,” meaning science, is the scientific discipline dedicated to the study of tissues. By delving into oral histology and embryology, individuals can establish a robust understanding of oral biology. The subject encompasses the examination of cellular and tissue development and structure, including the various stages of tooth development and maturation. Areas of focus include the constituents of tissues such as cells, intercellular substances, tissue fluids, and components of human teeth like enamel, dentin, and dental pulp. Gurumcqs.com offers Oral Histology Multiple-Choice Questions (MCQs) along with answers, carefully curated from reputable reference books on oral histology. These MCQs are valuable not only for academic purposes but also for interview preparation, entrance exams, competitive assessments, and certifications, catering to individuals at all levels of expertise, whether experienced professionals, newcomers, or students. Additionally, those interested can explore Oral Pathology MCQs for further study.

141. Which of the following is least mineralized ?

A. Cementoid
B. Incremental line
C. Cellular cementum
D. Acellular cementum

142. Root lengthening is contributed by____________?

A. Cellular cementum
B. Acellular cementum
C. Intermediate cementum
D. All of the above

143. Trauma or excessive occlusal forces causes_____________?

A. Hyperplasia of cementum
B. Hypertrophy of cementum
C. Resorption of cementum
D. None of the above

144. At the CEJ cementum overlaps enamel about____________?

A. 55 to 60%
B. 60 to 65%
C. 65 to 70%
D. 70 to 75%

145. The vascular supply of the periodontal ligament is______________?

A. Greatest in the middle-third of a single rotted tooth
B. Greatest in the middle-third of a multirooted tooth
C. A net like plexus that runs closer to the cementum than to the bone
D. A net like plexus that runs closer to the bone than to the cementum

146. All of the following cells of periodontal ligament are of mesenchymal origin except______________?

A. Fibroblasts
B. Multi totipotent cells
C. Cementoblasts
D. Cell rests of malassez

147. Remnants of the Hertwig’s root sheath are found in____________?

A. Gingiva
B. Alveolar bone
C. Periodontal ligament
D. Cementum

148. Anchoring fibrills are composed of_____________?

A. Type V and VII collagen
B. Type I and III collagen
C. Type IV collagen
D. Type IV and III Collagen

149. The periodontal ligament_____________?

A. Derives its blood supply primarily from the branches of vessels entering the pulp
B. Has a slow rate of turn over
C. Contains epithelial cells
D. Comprises primarily of type II collagen

150. Which dental tissue doesn’t contain nerves ?

A. Bone
B. Dentin
C. Cementum
D. Pulp