Dental Caries and Attrition Quiz
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Questions and Answers

What is a characteristic feature of arrested caries?

  • They are typically found on the occlusal surfaces.
  • They have a tooth-like consistency with a glossy surface. (correct)
  • They always cause significant pain.
  • They progress rapidly.

Which surfaces of teeth are most frequently associated with arrested caries?

  • Interproximal only.
  • Facial and occlusal surfaces.
  • Cervical surfaces predominantly.
  • Lingual and labial surfaces. (correct)

How do arrested caries demonstrate resistance to further infection?

  • Through high acidity in the oral environment.
  • Due to no food accumulation or stagnation. (correct)
  • By having a thick layer of plaque.
  • By accumulating food particles.

Which type of caries refers to lesions that develop adjacent or beneath existing restorations?

<p>Secondary (Recurrent) Caries. (B)</p> Signup and view all the answers

What is a common misconception about pain related to arrested caries?

<p>Arrested caries don't cause pain. (A)</p> Signup and view all the answers

Which characteristic is NOT associated with arrested caries?

<p>Soft and chalky consistency (C)</p> Signup and view all the answers

Where are arrested caries lesions most commonly found?

<p>Lingual or labial surfaces (C)</p> Signup and view all the answers

Which statement about secondary (recurrent) caries is true?

<p>They can appear underneath existing restorations. (D)</p> Signup and view all the answers

What is the primary feature indicating that a carious lesion has become arrested?

<p>No tendency for progression (C)</p> Signup and view all the answers

Which of the following is NOT a feature of arrested caries?

<p>Development on newly erupted teeth (D)</p> Signup and view all the answers

What is the primary distinguishing feature of attrition compared to other types of tooth wear?

<p>It results from tooth-to-tooth contact. (D)</p> Signup and view all the answers

Which of the following factors could contribute to pathological attrition?

<p>Bruxism or clenching habits (A)</p> Signup and view all the answers

Which clinical appearance is NOT typically associated with attrition?

<p>Development of caries (B)</p> Signup and view all the answers

How is the difficulty in distinguishing between physiological and pathological tooth wear primarily addressed?

<p>Through a sequential diagnostic procedure. (D)</p> Signup and view all the answers

Which of the following statements about the classification of tooth wear is false?

<p>Abfraction is caused by external abrasive materials. (B)</p> Signup and view all the answers

What is a common clinical manifestation of physiological tooth wear?

<p>Loss of mamelons on anterior teeth (C)</p> Signup and view all the answers

Which of the following best characterizes pathological wear in teeth?

<p>Significant loss of tooth structure and dentin exposure (C)</p> Signup and view all the answers

What is a major difference between physiological and pathological tooth wear?

<p>Pathological wear involves more unusual rates of wear for age (B)</p> Signup and view all the answers

Which of the following statements about tooth wear requires careful diagnostic evaluation?

<p>Both types of wear may present with similar signs initially (A)</p> Signup and view all the answers

Which condition is NOT a sign of pathological tooth wear?

<p>Shortening of vertical tooth length (D)</p> Signup and view all the answers

What is a key characteristic of attrition that differentiates it from abrasion?

<p>It results in enamel loss revealing dentin. (D)</p> Signup and view all the answers

Which of the following accurately describes the effects of proximal surface attrition?

<p>It leads to a decrease in the spacing between teeth. (C)</p> Signup and view all the answers

What common consequence is associated with abrasion due to incorrect brushing techniques?

<p>Localized cervical lesions that appear V-shaped. (B)</p> Signup and view all the answers

What is the primary mechanism by which abrasion occurs?

<p>Friction between teeth and external objects. (D)</p> Signup and view all the answers

Which statement about the appearance of the abraded tooth surface is correct?

<p>It typically develops a shiny surface. (B)</p> Signup and view all the answers

What is a significant consequence of proximal surface attrition?

<p>Increased susceptibility to decay (C)</p> Signup and view all the answers

What characteristic pattern is associated with tooth abrasion?

<p>V-shaped wear patterns on cervical margins (C)</p> Signup and view all the answers

Which of the following teeth are most commonly affected by abrasion?

<p>Premolars and canines (B)</p> Signup and view all the answers

Which factor does NOT contribute to the formation of attrition on teeth?

<p>Improper brushing techniques (B)</p> Signup and view all the answers

What impact does proximal surface attrition have on the dental arch?

<p>Reduces overall shape of the arch (A)</p> Signup and view all the answers

Which statement accurately describes intrinsic erosion?

<p>Erosive wear occurs mainly on the palatal surfaces of maxillary anterior teeth. (A)</p> Signup and view all the answers

What appearance do teeth exhibit due to enamel thinning associated with dental erosion?

<p>Translucent or darker appearance (B)</p> Signup and view all the answers

In clinical presentations, what characteristic feature distinguishes extrinsic erosion?

<p>Worn or glazed surfaces on buccal and cervical regions (A)</p> Signup and view all the answers

Which of the following best describes how amalgam restorations appear in relation to eroded tooth surfaces?

<p>Amalgam usually stands raised, resembling an 'amalgam island.' (C)</p> Signup and view all the answers

Which area is least affected by intrinsic erosion according to the characteristics described?

<p>Lingual surfaces of lower anterior teeth (B)</p> Signup and view all the answers

What defines intrinsic erosion in dental hard tissues?

<p>Chemical damage resulting from gastric content entering the oral cavity. (D)</p> Signup and view all the answers

Which of the following is NOT an example of extrinsic erosion?

<p>Gastroesophageal reflux disease (GERD) (B)</p> Signup and view all the answers

Which pH level indicates the critical threshold for the onset of dental erosion?

<p>pH 5.5 (B)</p> Signup and view all the answers

What is a common cause of intrinsic erosion in the dental palatal surfaces?

<p>Voluntary regurgitation of gastric contents (A)</p> Signup and view all the answers

Which situation is most likely to lead to the erosion of dental hard tissues due to external factors?

<p>Frequent consumption of acidic drinks (B)</p> Signup and view all the answers

What characteristic appearance is typical of toothbrush abrasion?

<p>V-shaped with a shiny surface (D)</p> Signup and view all the answers

Which of the following factors is NOT a patient-related factor influencing the spread of toothbrush abrasion?

<p>Bristle stiffness (D)</p> Signup and view all the answers

In severe cases of toothbrush abrasion, what may become exposed?

<p>The pulp chamber (C)</p> Signup and view all the answers

Which occupational habit is likely to cause abrasion on teeth?

<p>Cutting sewing thread with incisor teeth (B)</p> Signup and view all the answers

What type of discoloration may indicate affected teeth from abrasion?

<p>Yellowish discoloration (B)</p> Signup and view all the answers

What causes the microfractures in enamel and dentin leading to abfraction lesions?

<p>Tooth flexure under occlusal forces (D)</p> Signup and view all the answers

Which of the following shapes can abfraction lesions exhibit?

<p>Wedge-shaped or V-shaped (D)</p> Signup and view all the answers

How do the thin Hunter-Schreger bands contribute to abfraction lesions?

<p>They facilitate mechanical stress and microfractures. (B)</p> Signup and view all the answers

What is another term used to describe abfraction lesions?

<p>Cervical stress lesions (C)</p> Signup and view all the answers

Where are abfraction lesions most likely to be found on a tooth?

<p>Near the cemento-enamel junction (A)</p> Signup and view all the answers

What is the primary characteristic of extrinsic stains?

<p>They result from chromogenic substances on the external surface. (B)</p> Signup and view all the answers

Which type of stains are typically affected by bleaching treatments?

<p>Extrinsic stains from poor oral hygiene. (A)</p> Signup and view all the answers

What shape is NOT associated with abfraction lesions?

<p>Cuboidal (B)</p> Signup and view all the answers

Intrinsic stains can result from which of the following?

<p>Local or systemic factors (D)</p> Signup and view all the answers

Which statement about the removal of extrinsic stains is accurate?

<p>They can be removed by routine prophylactic procedures. (D)</p> Signup and view all the answers

Flashcards

Arrested Caries

Caries that has stopped progressing and is not getting worse.

Self-Cleaning Caries

The arrested lesion is often found on the tongue or lip side of the tooth due to cleaning properties.

No Progression of Caries

The arrested lesion does not get bigger even though it's already there.

Appearance of Arrested Caries

Arrested caries often appears brown or black with a shiny, polished surface.

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Arrested Caries Affects All Teeth

Both baby teeth and adult teeth can have arrested caries.

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Self-Cleaning Property

Arrested caries lesions usually appear on the tongue or lip side of the tooth because the tongue and lips naturally clean these surfaces.

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Primary Caries

An original carious lesion that hasn't been treated before.

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Recurrent Caries

Caries that develops beneath or around existing fillings. It's like a 'second wave' of decay.

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Physiological Tooth Wear

Tooth wear that occurs naturally as a result of normal chewing and aging.

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Pathological Tooth Wear

Tooth wear that occurs at an accelerated rate, causing noticeable damage and potentially leading to problems.

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Dentin Exposure

A key sign of pathological wear, indicating severe tooth structure loss.

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Distinguishing Physiological and Pathological Wear

A diagnostic challenge that requires careful analysis of the patient's dental history and clinical presentation.

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Thorough Diagnostic Procedure

Essential for accurately diagnosing tooth wear and planning appropriate treatment.

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Attrition

Tooth wear from tooth-to-tooth contact without foreign substances like food. Can be considered normal wear, but can also be caused by unhealthy habits.

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Etiology of Tooth Wear

The process of identifying the cause behind tooth wear. Crucial for effective treatment.

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Distinguishing Physiological from Pathological Tooth Wear

This is the process of determining if tooth wear is normal or a sign of a problem. It's like a detective work to understand the cause.

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Attrition due to Parafunctional Habits

This is the category of tooth wear that's caused by grinding or clenching, often during sleep. This is a common cause of wear.

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Flattening of Incisal Edges

Loss of the natural shape of tooth surfaces, especially at the biting edges. It's a hallmark of attrition.

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Abrasion

The wearing away of tooth enamel caused by friction with a foreign object, like a toothbrush.

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Facet Formation

A visible sign of attrition where the sharp edges of enamel have been worn down.

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Proximal Surface Attrition

The loss of enamel on the sides of teeth due to the teeth shifting closer together.

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Toothbrush Abrasion

When improper brushing techniques cause a V-shaped notch on the neck of a tooth.

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Dental Attrition

A gradual wear and tear of tooth structure, primarily due to tooth-to-tooth contact, resulting in shorter teeth and flattened surfaces.

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Incorrect Brushing Technique

A common cause of abrasion on the tooth's neck (cervical area), often caused by aggressive brushing.

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V-shaped Abrasion

The affected area in abrasion often shows a distinctive V-shaped pattern due to the pressure applied during brushing.

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Extrinsic Erosion

The loss of tooth enamel due to acids from outside the mouth, like acidic drinks, food, or medications.

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Intrinsic Erosion

The loss of tooth enamel due to acids from inside the mouth, like stomach acid.

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Critical pH for Erosion

A critical pH level below which tooth enamel starts to dissolve.

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GERD (Gastroesophageal Reflux Disease)

A condition where stomach acid flows back up into the esophagus and mouth, causing erosion of the palate.

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Dental Erosion

The process of chemical damage to teeth caused by acidic substances.

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Voluntary Regurgitation

An eating disorder like bulimia, where people intentionally vomit after eating, can cause damage to teeth.

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Appearance of Eroded Teeth

The tooth surface may appear smooth and shiny, or chipped and shortened due to the enamel being worn away.

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Appearance of Toothbrush Abrasion

The shape of toothbrush abrasion is typically V-shaped, reflecting the lateral pressure applied during brushing. This results in a shiny, smooth surface, often linear in outline, following the path of the brush.

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Factors Influencing Tooth Abrasion

Factors influencing the spread of tooth abrasion include the patient's brushing technique, frequency, and force applied, as well as the brush type, bristle stiffness, abrasive qualities, and the dentifrice used.

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Occupational Habits and Tooth Abrasion

Certain occupational habits, such as cutting sewing thread or holding nails with the front teeth, can also cause localized abrasion.

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Toothpick Abrasion

Toothpick use, especially forceful use between adjacent teeth, can cause abrasion on the sides of teeth.

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Extrinsic Stains

These stains develop on the outer surface of your teeth due to things like food and drinks with pigments, poor hygiene, smoking, or certain medicines.

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Intrinsic Stains

These stains are deeper inside the tooth structure and can't be removed by simple cleaning.

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Abfraction

These are wedge-shaped or 'V-shaped' grooves on your teeth that often appear near the gum line.

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What causes extrinsic tooth discoloration?

These stains are often caused by things like poor oral hygiene or consuming colorful foods and drinks.

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What is Intrinsic Tooth Discoloration?

The type of discoloration that is caused by factors internal to the tooth, happening deep within its structure.

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What is Abfraction?

Wedge-shaped defects near the gum line caused by tooth bending and stress.

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How does Abfraction occur?

The theory explains that tooth flexure and bending under occlusal forces create tiny fractures in the enamel and dentin, leading to damage.

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What do Abfraction lesions look like?

They often appear as wedge-shaped or V-shaped lesions near the gum line with well-defined edges.

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What is an Amalgam Island?

A raised filling that stands out from the eroded tooth surface due to tooth wear.

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How can erosion contribute to abfraction?

Acidic substances, like those found in food and drinks, can wear away enamel, making teeth more vulnerable to abfraction.

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