Question: Sharpey’s fibres are present in_______________?

• 1. Bone
• 2. Periosteum
• 3. Periodontal ligament
• 4. All of the above

Question: Intermediate plexus is absent in which of the following principle fibres_____________?

• 1. Gingival
• 2. Oblique
• 3. Horizontal
• 4. Transseptal

Question: The calcified mass found in the PDL are_____________?

• 1. Cementicles
• 2. Osteoblasts
• 3. Cementoclasts
• 4. Osteoclasts

Question: Principal fibres of periodontal ligament are attached to_____________?

• 1. Alveolar bone proper
• 2. Bundle bone
• 3. Lamellar bone
• 4. Cortical bone

Question: Collagen biosynthesis occurs inside the______________?

• 1. Chondroblasts
• 2. Odontoblasts
• 3. Osteoblasts
• 4. Fibroblasts

Question: Bone adjacent to periodontal ligament that contains a great number of sharpey’s fibres is known as______________?

• 1. Lamina dura
• 2. Bundle bone
• 3. Lamina propria
• 4. Lamina densa

Question: Intermediate plexus is seen in the____________?

• 1. Cementum
• 2. PDL
• 3. Pulp
• 4. Dentin

Question: The vascular supply of the periodontal ligament is______________?

• 1. Greatest in the middle-third of a single rotted tooth
• 2. Greatest in the middle-third of a multirooted tooth
• 3. A net like plexus that runs closer to the cementum than to the bone
• 4. A net like plexus that runs closer to the bone than to the cementum

Question: All of the following cells of periodontal ligament are of mesenchymal origin except______________?

• 1. Fibroblasts
• 2. Multi totipotent cells
• 3. Cementoblasts
• 4. Cell rests of malassez

Question: Remnants of the Hertwig’s root sheath are found in____________?

• 1. Gingiva
• 2. Alveolar bone
• 3. Periodontal ligament
• 4. Cementum