Dental Deposits

1.Describe acquired pellicle.
organic layer acquired after tooth eruption

2. List 2 types of pellicles.
   A. Surface pellicle unstained

B. Surface pellicle stained

3. Describe the composition of oral biofilm.
   A biofilm community comprises bacterial microcolonies, an extracellular slime layer, fluid channels, and a primitive communication system.
4. List and describe the 4 stages of oral biofilm formation.
   A. Association – Physical forces
   B. Adhesion – surface molecules adhere to pellicle
   Proliferation
   C. Micro-colonies develop (Extracellular polysaccharides)
   D. “Attached plaque” – biofilm development, complex groups
   E. Developing into mature dental biofilm with a primitive ‘circulatory system’
5. Define Materia Alba.
   white loosely adherent mass of bacteria and cellular debris; contributes to demineralization and gingival inflammation
6. Differentiate between Materia Alba and food debris.
   Food debris appearance
   Loose food particles. Cariogenic foods (sugar) contribute to dental caries

Materia alba appearance
Visible, white, bulky, soft, “cottage cheese-like”

7. Define calculus.
   Dental calculus is mineralized dental biofilm that is filled with crystals of various calcium phosphates.
8. List the distribution (most frequent sites) of:
   A. Supragingival Calculus
   on the lingual surfaces of mandibular anterior teeth ad the facial surfaces of maxillary first and second molars, opposite the openings of the ducts of the submandibular and parotid salivary glands
   -on the crowns of teeth out of occlusion; non-functioning teeth; or teeth that are neglected during daily biofilm removal
   -On surfaces of dentures, dental prostheses, and tongue piercing’s barbells. B. Subgingival Calculus B. Subgingival Calculus

May be generalized or localized on single teeth or a group of teeth.
-Heaviest deposits are related to areas most difficult for the patient to access during personal oral biofilm removal procedures.

-calculus typically will form at the cementoenamel junction (CEJ) as recession and pocket formation continue.
-color of subgingival calculus comes from exposure to the products of blood and blood breakdown products.

Reference:-

https://quizlet.com/238670367/fundamentals-ch-21-flash-cards/
https://quizlet.com/429726664/chapter-21-calculus-flash-cards/
https://quizlet.com/44848470/calculus-flash-cards/
https://quizlet.com/551372005/materia-alba-and-food-debris-flash-cards/
https://quizlet.com/243040145/materia-alba-flash-cards/
https://quizlet.com/au/212906480/dental-plaque-biofilm-flash-cards/
https://quizlet.com/15938460/acquired-pellicle-flash-cards/
https://www.google.com/search?q=Describe+acquired+pellicle+quizlet&oq=Describe+acquired+pellicle+quizlet&gs_lcrp=EgZjaHJvbWUyBggAEEUYOTIHCAEQIRigAdIBCDY3MjJqMGo3qAIAsAIA&sourceid=chrome&ie=UTF-8