Periodontal Ligament Anatomy and Development

<p>Acting as a barrier against bacterial invasion. (D)</p> Signup and view all the answers

<p>The ligament's ability to withstand tensile forces. (D)</p> Signup and view all the answers

<p>By absorbing excess fluid during mastication. (A)</p> Signup and view all the answers

<p>To modify the action of the fibers in withstanding transmitted loads. (D)</p> Signup and view all the answers

<p>Its role in tissue repair and regeneration. (A)</p> Signup and view all the answers

<p>They actively move to pull the tooth out of its socket. (D)</p> Signup and view all the answers

<p>Anaesthetisation of patients' teeth. (A)</p> Signup and view all the answers

<p>Possible ankylosis due to local injury. (B)</p> Signup and view all the answers

<p>They produce collagen and ground substance. (D)</p> Signup and view all the answers

<p>It regulates the speed and force applied while biting. (B)</p> Signup and view all the answers

<p>Changes in the orientation of PDL fibroblasts. (D)</p> Signup and view all the answers

<p>Providing mechanical support during tooth movement. (A)</p> Signup and view all the answers

<p>Excessive mineralization leading to ankylosis. (A)</p> Signup and view all the answers

<p>Rats (C)</p> Signup and view all the answers

<p>Cementoblasts (B)</p> Signup and view all the answers

<p>Repair and maintenance of periodontal ligament (B)</p> Signup and view all the answers

<p>Root fracture and periodontal ligament injury (C)</p> Signup and view all the answers

<p>1-hydroxyethylidene-1,1-bisphosphonate (D)</p> Signup and view all the answers

<p>Radioautographic study (B)</p> Signup and view all the answers

<p>Impaired immunomodulation (A)</p> Signup and view all the answers

<p>It initiates in developing human teeth (B)</p> Signup and view all the answers

<p>Ground substance (A)</p> Signup and view all the answers

<p>Dermatan sulphate (A)</p> Signup and view all the answers

<p>Provide loose connective tissue (D)</p> Signup and view all the answers

<p>Perpendicular to the surface (C)</p> Signup and view all the answers

<p>They provide structural integrity. (D)</p> Signup and view all the answers

<p>Two-thirds (C)</p> Signup and view all the answers

<p>Support macromolecular organization (C)</p> Signup and view all the answers

<p>Proteoglycans interact with collagen components. (B)</p> Signup and view all the answers

<p>To maintain homeostasis with bone cells (C)</p> Signup and view all the answers

<p>They increase inflammation and destroy collagen (D)</p> Signup and view all the answers

<p>It inhibits bone resorption and has cytotoxic effects on fibroblasts (C)</p> Signup and view all the answers

<p>It decreases progressively (C)</p> Signup and view all the answers

<p>Old bone is replaced by new bone, severing the fibers (D)</p> Signup and view all the answers

<p>A rapid loss of tooth supporting tissue (D)</p> Signup and view all the answers

<p>0.15-0.38 nm (B)</p> Signup and view all the answers

<p>Interference with fibroblast function (B)</p> Signup and view all the answers

<p>Ligament stem cells (B)</p> Signup and view all the answers

<p>Periodontal ligament cells in vivo and in vitro (C)</p> Signup and view all the answers

<p>Bovine periodontal ligament stem cells (B)</p> Signup and view all the answers

<p>McCulloch et al. (B)</p> Signup and view all the answers

<p>Isolation and differentiation potential (A)</p> Signup and view all the answers

<p>Bovine periodontal ligament (A)</p> Signup and view all the answers

<p>They contract and organize by cells cultured from the periodontal ligament. (A)</p> Signup and view all the answers

<p>Transplantation and autoradiographic techniques (B)</p> Signup and view all the answers

The process by which cells ingest particulate matter and invading organisms.

Unspecialized cells that can differentiate into various cell types and can be expanded for medical uses.

The process by which teeth emerge from the gums; facilitated by fibroblasts of the periodontal ligament (PDL).

Cells in the periodontal ligament that play a crucial role in tooth eruption and periodontal health.

Sensors in the periodontal ligament that provide feedback about bite force and tooth movement.

The strength applied by teeth during chewing, controlled by PDL proprioceptors.

A pathological condition where a tooth becomes fused to the bone due to injury or other factors.

The continuous process of collagen production and degradation by PDL fibroblasts for tissue health.

Loose connective tissue areas between principal fibres in PDL.

Main component of connective tissues, rich in non-collagenous proteins.

Structural fibres in PDL that provide strength and support.

Molecules formed by glycosaminoglycans attached to proteins, important for tissue structure.

Anionic polysaccharides found in ground substance, crucial for hydration and structural integrity.

A glycoprotein that helps in the attachment of cells to the extracellular matrix.

A glycoprotein involved in tissue organization and signaling.

Requirements for blood vessels and nerve supply in the periodontal ligament.

Cells that synthesize collagen and other fibers in the periodontal ligament.

Disease that affects the gums and supporting structures of teeth, often causing inflammation.

Enzymes that degrade collagen and are involved in tissue remodeling and inflammation.

The process by which bone is broken down and its minerals released into the bloodstream.

Stem cells located in the periodontal ligament that can help in tissue regeneration.

The ongoing process of replacing old bone tissue with new bone tissue.

A connective tissue that supports teeth and assists in force transfer during mastication.

The ability of a material to exhibit both viscous and elastic properties under stress.

PDL helps cushion against occlusal forces to protect the alveolus.

PDL shows low initial resistance to applied force, increasing at higher levels.

A process where immune cells move to inflamed areas, such as the ligament during injury.

The fluid within the ligament helps modulate load transmission through the fibers.

The PDL cushions the tooth socket against strong biting forces.

Collagen fibers in PDL provide strength and support during tooth movement.

Stem cells found in the periodontal ligament that have potential for regenerative therapies.

The study of the physical properties of biological tissues, such as the periodontal ligament.

Analyzing differences in the appearance and function of cells from different environments, like in vivo and in vitro.

Structures formed by collagen that can be influenced by PDL cells during culture.

A variety of tissues that support teeth, including periodontal ligament and gingiva.

Special collagen fibers in the periodontal ligament that relate to blood vessels.

The process where cells exert force on collagen fibers, impacting tissue structure in the periodontal ligament.

A condition where a tooth is fused to the bone, preventing movement.

Clusters of epithelial cells in the periodontal ligament, playing a role in tissue repair.

Cells responsible for bone formation.

The process where osteoclasts are stimulated to break down bone.

Cells that form cementum, covering the root of a tooth.

Multipotent stem cells found in connective tissues that can differentiate into various cell types.

A field that uses biological materials to repair or replace damaged tissues.