Podcast
Questions and Answers
Which of the following components is NOT classified as a soft deposit on teeth?
Which of the following components is NOT classified as a soft deposit on teeth?
What is the primary consequence of dental biofilm being fed by sugar?
What is the primary consequence of dental biofilm being fed by sugar?
What term describes the loosely adherent mass of debris and bacteria lying over dental biofilm?
What term describes the loosely adherent mass of debris and bacteria lying over dental biofilm?
If dental biofilm is not removed within 24-72 hours, what is the next stage in its development?
If dental biofilm is not removed within 24-72 hours, what is the next stage in its development?
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Which area is typically a common site for calculus buildup?
Which area is typically a common site for calculus buildup?
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Which of the following is NOT a step in the formation of tooth deposits?
Which of the following is NOT a step in the formation of tooth deposits?
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What type of stains can occur if they are contained within the calculus or pellicle?
What type of stains can occur if they are contained within the calculus or pellicle?
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What role does the acquired pellicle play in the mouth shortly after brushing?
What role does the acquired pellicle play in the mouth shortly after brushing?
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What distinguishes endogenous stains from exogenous stains?
What distinguishes endogenous stains from exogenous stains?
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Which of the following is an example of an intrinsic stain?
Which of the following is an example of an intrinsic stain?
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What is the primary purpose of oral prophylaxis?
What is the primary purpose of oral prophylaxis?
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Which method can help visualize biofilm accumulations on teeth?
Which method can help visualize biofilm accumulations on teeth?
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What role does nutrition play in dental disease prevention?
What role does nutrition play in dental disease prevention?
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Which polishing technique utilizes a slurry of sodium bicarbonate?
Which polishing technique utilizes a slurry of sodium bicarbonate?
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What is a significant factor that influences the occurrence of dental caries?
What is a significant factor that influences the occurrence of dental caries?
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Which of the following best describes scaling?
Which of the following best describes scaling?
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Study Notes
Soft and Hard Deposits
- Soft deposits include acquired pellicle, dental biofilm, materia alba, and food debris.
- Acquired pellicle forms within seconds after brushing, is thin and acellular, and aids in bacterial adhesion.
- Dental biofilm is a dense, organized, sticky, and colorless community of bacteria that forms within 1-2 hours of brushing.
- Materia alba is a loosely adherent white or greyish-white mass of debris and bacteria on top of dental biofilm.
- If dental biofilm isn't removed within 24-72 hours, it mineralizes and becomes calculus.
- Calculus is a hard, mineralized deposit that cannot be brushed off and harbors bacteria.
- 68% of adults have calculus.
Formation of Tooth Deposits
- The formation of tooth deposits follows four stages: Pellicle Formation, Initial Adhesion, Maturation, and Detachment and Dispersion.
- Pellicle formation provides proteins for bacteria to adhere to.
- Initial Adhesion is when bacteria attach to the pellicle on the tooth.
- During Maturation, microcolonies of bacteria form, creating a food chain.
- In Detachment and Dispersion, bacterial colonies release cells to spread to other areas of the mouth.
Dental Stains
- Dental stains can be either exogenous or endogenous.
- Endogenous stains occur during tooth development and cannot be removed. Examples include fluorosis, tetracycline stain, and enamel hypoplasia.
- Exogenous stains occur after tooth eruption. They can be intrinsic (within the tooth structure) or extrinsic (on the exterior of the tooth). Examples of intrinsic stains include pulp infection, antibiotic-induced, tooth decay, and amalgam staining.
Dental Disease
- Tooth deposits contribute to dental caries and periodontal disease.
Nutrition and Dental Disease Prevention
- A diet rich in fruits, vegetables, dairy, and hard foods helps prevent dental disease.
- Reduce sugar intake and opt for fruits as desserts.
Oral Prophylaxis
- Oral prophylaxis involves the complete removal of calculus, debris, stains, and plaque from the teeth.
Methods of Detection of Tooth Deposits
- Direct vision can reveal stained biofilm, thick biofilm, and the presence of materia alba or food debris.
- An explorer or probe can disrupt biofilm and indicate its presence.
- Disclosing agents make biofilm visible.
- A biofilm record and score can document the location and thickness of biofilm accumulation for treatment and follow-up.
Methods of Soft Deposit Removal
- Coronal polishing removes plaque and stain from the coronal surface of teeth using a low-speed handpiece, prophy angle, rubber cup, and abrasive agent.
Methods of Stain Removal
- Rubber cup polishing, using various grits of polishing paste, is the most common method.
- Air polishing uses a slurry of sodium bicarbonate to remove stains and can be used to clean pits and fissures before placing sealants.
Methods of Hard Deposit Removal
- Scaling, performed by a dental hygienist or dentist, is used to remove calculus from both above and below the gum line.
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Description
This quiz explores the distinctions between soft deposits like dental biofilm and hard deposits such as calculus. It highlights their formation stages and the importance of maintaining oral hygiene to prevent mineralization. Test your understanding of these key concepts in dental health.
