Dental Plaque

The predominant micro-organism in the first 24 hours of plaque formation are :

• Vibrious

• Filaments

• Rods and Cocci

• Cocci and Filaments

Which is not a secondary colonizer:

• Provetella intermedia

• Streptococcus mitis

• Fusobacterium nucleatum

• Treponema Denticola

Source of Inorganic Matrix in Supra-Gingival Plaque is :

• GCF

• Saliva

• Calcium

• Flouride

Source of inorganic matrix in Sub-Gingival Plaque is :

• GCF

• Saliva

• Flouride

• Calcium

Composition of plaque include:

• 30% Micro-organism,70% Intercellular Matrix

• 60% Micro-Organism, 40% Intercellular Matrix

• 40% Micro-organism, 60% Intercellular Matrix

• 70% Micro-organism, 30% Intercellular Matrix

Supra-Gingival plaque present in following areas of tooth:

• Gingival third of the crown of the tooth

• Inter-Proximal areas

• Pits and Fissures

• All of the above

Steps involved in formation of Dental Plaque:

• Pellicle Formation -> Initial Adhesion and Attachment of Bacteria -> Colonization -> Plaque Maturation

• Initial Adhesion and Attachment of bacteria -> Colonization -> Pellicle formation -> Plaque maturation

• Pellicle formation -> Colonization -> Initial Adhesion and Attachment of bacteria -> Plaque maturation

• Initial Adhesion ad Attachment of bacteria ->Pellicle formation -> Colonization -> Plaque maturation

Prediminant inorganic components of plaque are:

• Calcium and Flouride

• Calcium and Phosphorous

• Phosphorous and Flouride

• Flouride and zinc

Soft yellowish deposits which is non calcified structural entity and cannot be removed by water spray

• Dental plaque

• Dental biofilm

• Bacterial plaque

• All of the above

Which is not a primary colonizer of dental plaque :

• Streptococcus intermedius

• Aggregatibacter Actinomycetemcomitans

• Capnocytophaga gingivalis

• prevotella intermedia