Cell Rests Of Malassez And Their Role In Periodontal Health

Cell Rests Of Malassez And Their Role In Periodontal Health

Question 1. Cell rest of Malassez.
Answer:

• They are remnants of HERS.
• They are found close to the cementum and are found abundant in furcation areas.
• They consist of closely packed cuboidal cells with prominent nuclei and scanty cytoplasm.
• They persist as strands, islands, or tubelike structures close to the cementum.
• They may show variations in number and site with respect to age.

Question 2. Oxytalin fibers.
Answer:

• They are a type of immature elastic fibers.
• They consist of microfibrillar components only.
• Size: 0.5 – 2.5 pm in diameter (approx.)
• They are not susceptible to acid hydrolysis.
• Fibers run in the axial direction.
• One end is embedded in cementum/bone and the other is in the wall of blood vessels.
• They play a role in tooth support and regulate vascular flow.
• They are numerous and dense in the cervical region of the ligament.

Question 3. Fibroblasts.
Answer:

• It is the predominant cell of PDL.
• They originate from the ectomesenchyme of the investing layer of the dental papilla.
• They are spindle-shaped large cells with extensive cytoplasm and abundant organelles with large nuclei.
• They consist of cilia which are associated with the control of the cell cycle.
• They play an important role in the remodeling of collagen which includes collagen synthesis and . degradation of collagen.