Podcast
Questions and Answers
What primarily causes dental caries?
What primarily causes dental caries?
- Overbrushing leading to enamel wear
- Acid-producing bacteria breaking down mineral structure (correct)
- Plaque buildup on smooth enamel surfaces
- Fluoride deficiency in saliva
What type of caries develops on healthy teeth?
What type of caries develops on healthy teeth?
- Progressive caries
- Primary caries (correct)
- Root caries
- Secondary caries
Which clinical site is most susceptible to caries initiation?
Which clinical site is most susceptible to caries initiation?
- Root surfaces
- Proximal contact areas
- Pits and fissures (correct)
- Smooth enamel surfaces
What is the process of decay progression through dentin characterized by?
What is the process of decay progression through dentin characterized by?
What results from poor oral hygiene related to smooth surface caries?
What results from poor oral hygiene related to smooth surface caries?
Why do root caries progress more rapidly than other types of caries?
Why do root caries progress more rapidly than other types of caries?
What is the direction of decay for smooth surface caries?
What is the direction of decay for smooth surface caries?
What is the irreversible type of caries that requires treatment through tooth preparation and restoration?
What is the irreversible type of caries that requires treatment through tooth preparation and restoration?
What contributes significantly to the formation of pits and fissures in teeth?
What contributes significantly to the formation of pits and fissures in teeth?
Which type of caries progresses rapidly and leads to swift tooth damage?
Which type of caries progresses rapidly and leads to swift tooth damage?
Toothbrush abrasion typically causes localized lesions on which part of the teeth?
Toothbrush abrasion typically causes localized lesions on which part of the teeth?
What characteristic is associated with chronic caries lesions as they progress?
What characteristic is associated with chronic caries lesions as they progress?
Non-carious lesions can be caused by various factors. Which of the following is NOT a type of abrasion mentioned?
Non-carious lesions can be caused by various factors. Which of the following is NOT a type of abrasion mentioned?
What is the main difference between incipient caries and arrested caries?
What is the main difference between incipient caries and arrested caries?
Which of the following best describes abrasion caused by improper brushing techniques?
Which of the following best describes abrasion caused by improper brushing techniques?
What generally causes iatrogenic abrasion in dental contexts?
What generally causes iatrogenic abrasion in dental contexts?
What primarily leads to the characteristic wedge shape of abfractive lesions?
What primarily leads to the characteristic wedge shape of abfractive lesions?
What is the primary consequence of severe attrition on teeth?
What is the primary consequence of severe attrition on teeth?
How does enamel hypoplasia differ from enamel hypocalcification?
How does enamel hypoplasia differ from enamel hypocalcification?
What is a common psychological effect of tooth discoloration?
What is a common psychological effect of tooth discoloration?
Which of the following best describes attrition?
Which of the following best describes attrition?
In cases of enamel hypoplasia, which of the following features may be present?
In cases of enamel hypoplasia, which of the following features may be present?
What typically results from improper function of ameloblasts during the formation of enamel?
What typically results from improper function of ameloblasts during the formation of enamel?
What primarily causes extrinsic erosion of teeth?
What primarily causes extrinsic erosion of teeth?
How might attrition affect proximal contact areas of teeth?
How might attrition affect proximal contact areas of teeth?
Which of the following is considered a lifestyle factor influencing dental erosion?
Which of the following is considered a lifestyle factor influencing dental erosion?
What is abfraction primarily associated with?
What is abfraction primarily associated with?
Which of the following best describes endogenous acidic agents?
Which of the following best describes endogenous acidic agents?
Which of the following products is most likely to cause dental erosion due to its low pH?
Which of the following products is most likely to cause dental erosion due to its low pH?
What is a common consequence of exposure to exogenous acidic agents in the workplace?
What is a common consequence of exposure to exogenous acidic agents in the workplace?
Which of the following foods is NOT typically associated with dental erosion?
Which of the following foods is NOT typically associated with dental erosion?
What effect does frequent regurgitation have on dental health?
What effect does frequent regurgitation have on dental health?
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Study Notes
Non-Carious Lesions
- Non-carious lesions are tooth structure defects caused by factors other than bacteria.
- These lesions require intervention to restore tooth structure.
Abrasion
- Abrasion is the loss of tooth structure caused by friction.
- Types:
- Toothbrush abrasion: Most common, caused by improper brushing.
- Pipe-smoking depression abrasion: Occurs at the latero-anterior portion of the arch.
- Toothpick abrasion: Caused by vigorous use of toothpicks.
- Occupational abrasion: Caused by habits like cutting sewing thread or holding nails with teeth.
- Iatrogenic abrasion: Caused by faulty dentistry.
Erosion
- Erosion is the loss of tooth structure caused by chemical agents like acids.
- Types:
- Exogenous acids:
- Environmental factors: Industrial acids encountered at work, acidic pool water.
- Dietary factors: Fruit acids, phosphoric acid from beverages and food.
- Medications: Low pH oral hygiene products and medicine.
- Endogenous acids: Gastric acids due to regurgitation, common in bulimia.
- Exogenous acids:
Abfraction
- Abfraction is a wedge-shaped cervical defect caused by excessive forces during chewing.
- Occurs due to unbalanced occlusion, causing microfractures in the enamel at the cervical area.
- Commonly associated with wear facets.
Attrition
- Attrition is the mechanical wear of tooth surfaces caused by direct contact with other teeth.
- It is a normal, age-related process that can be accelerated in cases of bruxism (tooth grinding).
- Affects occlusal surfaces, leading to flattening and facet formation.
- Can expose dentin and decrease tooth height.
Enamel Hypoplasia
- Enamel hypoplasia is a defect in the enamel matrix formation during tooth development.
- Caused by injury to ameloblasts, the cells responsible for enamel formation.
- Results in opaque white or brownish areas, pits, or grooves on the enamel.
Enamel Hypocalcification
- Enamel hypocalcification is a defect in the mineralization of the enamel.
- Caused by injury to ameloblasts during the enamel mineralization stage.
- The affected areas are chalky white but not structurally defective.
Discoloration
- Tooth discoloration deviates from the individual's normal tooth shade and color.
- Affects the individual's social and psychological well-being despite not being destructive.
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