Dental Erosion and Demineralization Quiz
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Questions and Answers

What is the critical pH for enamel in the oral cavity?

  • 5-5.5 (correct)
  • 7
  • 4-4.5
  • 6.2

    • What is the critical pH for dentin in the oral cavity?

  • 6.2 (correct)
  • 5-5.5
  • 7
  • 4-4.5

    • What percentage of severe wear cases have an erosive etiology as part of the cause?

  • 75%
  • 95%
  • 50%
  • 89% (correct)

    • What are the two sources of acidic substrates causing erosive tooth wear?

    <p>Intrinsic (Regurgitation) and extrinsic (Diet, Environment)</p> Signup and view all the answers

    Which condition is associated with voluntary regurgitation?

    <p>Eating disorders such as anorexia nervosa or bulimia nervosa</p> Signup and view all the answers

    What percentage of young women are affected by anorexia?

    <p>0.1 to 1%</p> Signup and view all the answers

    What is the ratio of females affected by eating disorders compared to males?

    <p>10:1.5</p> Signup and view all the answers

    What is perimylolysis?

    <p>The distribution of erosion on the upper palatal surface secondary to vomiting, reflux and regurgitation.</p> Signup and view all the answers

    Which factor is most important in deciding the erosive nature of the diet?

    <p>Titerability (Time of buffering)</p> Signup and view all the answers

    What is the most common cause of abrasion?

    <p>Incorrect or over vigorous tooth brushing</p> Signup and view all the answers

    Which type of tooth wear creates broader dished out shallow lesions?

    <p>Erosive wear</p> Signup and view all the answers

    What is the loss of tooth structure from eccentric occlusal loads leading to compressive and tensile stresses at the cervical fulcrum area of the tooth called?

    <p>Abfraction</p> Signup and view all the answers

    What is the survival rate of restorations for cervical lesions in 5 years found to be highest for?

    <p>Resin modified glass ionomer (RMGI)</p> Signup and view all the answers

    Which medication side effect is related to bruxism?

    <p>Antidepressants SSR inhibitors</p> Signup and view all the answers

    What is the critical pH for enamel in the oral cavity?

    <p>5-5.5</p> Signup and view all the answers

    What is the critical pH for dentin in the oral cavity?

    <p>6.2</p> Signup and view all the answers

    What percentage of young females are affected by anorexia?

    <p>0.1-1%</p> Signup and view all the answers

    What condition is associated with involuntary regurgitation?

    <p>Hiatus hernia</p> Signup and view all the answers

    Which factor is most important in deciding the erosive nature of the diet?

    <p>Titerability (Time of buffering)</p> Signup and view all the answers

    What is perimylolysis?

    <p>The distribution of erosion on the upper palatal surface secondary to vomiting, reflux, and regurgitation.</p> Signup and view all the answers

    Which type of tooth wear is caused by abnormal rubbing of teeth by a non-dental object?

    <p>Abrasion</p> Signup and view all the answers

    What is the most common cause of attrition?

    <p>Bruxism related to lifestyle factors</p> Signup and view all the answers

    Which material is found to be more durable in managing cervical lesions but lacks polish-ability and aesthetic properties?

    <p>Resin modified glass ionomer</p> Signup and view all the answers

    What is the critical pH for enamel in the oral cavity?

    <p>4.5 - 5.5</p> Signup and view all the answers

    What percentage of ecstacy users suffer from grinding and hyposalivation?

    <p>89</p> Signup and view all the answers

    Which condition is associated with voluntary regurgitation and appetite suppressants?

    <p>Anorexia nervosa</p> Signup and view all the answers

    What is the critical pH for enamel in the oral cavity?

    <p>5-5.5</p> Signup and view all the answers

    What is the critical pH for dentin in the oral cavity?

    <p>6.2</p> Signup and view all the answers

    What percentage of young females are affected by anorexia?

    <p>0.1 to 1%</p> Signup and view all the answers

    What percentage of young women are affected by bulimia?

    <p>1-2%</p> Signup and view all the answers

    What is the ratio of females affected by eating disorders compared to males?

    <p>10:1.5</p> Signup and view all the answers

    What is perimylolysis?

    <p>The distribution of erosion on the upper palatal surface secondary to vomiting, reflux, and regurgitation.</p> Signup and view all the answers

    What are the factors that decide the erosive nature of the diet?

    <p>1- Titerability (Time of buffering) most important 2- PH, type of the acid (lactic acid is the worst) 3-Conc. Of calcium, fluoride, and phosphate ions 4-Amout and frequency of the intake 5- Patient lifestyle 6- Temperature (high temp)</p> Signup and view all the answers

    Which condition is associated with involuntary regurgitation?

    <p>Hiatus hernia</p> Signup and view all the answers

    Which condition is associated with voluntary regurgitation?

    <p>Eating disorders such as anorexia nervosa or bulimia nervosa</p> Signup and view all the answers

    What is the aversion to food due to interaction between biological, social, individual, and family factors leading to severe weight loss?

    <p>Anorexia</p> Signup and view all the answers

    What are the environmental factors that can contribute to tooth erosion?

    <p>Exposure to acids in workplaces such as mines, battery factories, and professional swimmers can contribute to environmental erosion.</p> Signup and view all the answers

    What is the most common cause of abrasion?

    <p>The most common cause of abrasion is incorrect or over-vigorous tooth brushing.</p> Signup and view all the answers

    What are the clinical signs of attrition?

    <p>Clinical signs of attrition include flat incisal edges, mirror-like opposing wear facets, fractured teeth and restorations, increased teeth mobility, and cheek and tongue ridging.</p> Signup and view all the answers

    What is the etiology of attrition?

    <p>The etiology of attrition includes bruxism related to lifestyle factors such as stresses, anxiety, and depression, as well as side effects of some medications like antidepressants and SSR inhibitors.</p> Signup and view all the answers

    What is abfraction?

    <p>Abfraction is the loss of tooth structure from eccentric occlusal loads leading to compressive and tensile stresses at the cervical fulcrum area of the tooth.</p> Signup and view all the answers

    What is the suggested restorative material for abfraction lesions?

    <p>A restorative material with a low filler content and low modulus of elasticity (more flexible) is suggested for abfraction lesions.</p> Signup and view all the answers

    Which restorative material was found to be more durable in managing cervical lesions but lacks polish-ability and aesthetic properties?

    <p>Resin modified glass ionomer (RMGI) was found to be more durable in managing cervical lesions but lacks polish-ability and aesthetic properties.</p> Signup and view all the answers

    What was the survival rate of the restorations of the cervical lesions in 5 years found to be?

    <p>The survival rate of the restorations of the cervical lesions in 5 years was found to be 79% for RMGI, 71% for compomers, and 69% for flowable composite.</p> Signup and view all the answers

    What are the factors that may affect the pattern of tooth surface loss (TSL) in eating disorder patients?

    <p>Factors such as erosive diet, xerostomia, long-term complications, and environmental erosion may affect the pattern of TSL in eating disorder patients.</p> Signup and view all the answers

    What percentage of ecstacy users suffer from grinding and hyposalivation?

    <p>Milosevic reported that 89% of ecstasy users suffer from grinding and hyposalivation.</p> Signup and view all the answers

    Study Notes

    Critical pH

    • Critical pH for enamel in the oral cavity: 5.5
    • Critical pH for dentin in the oral cavity: 6.5

    Tooth Wear

    • 30% of severe wear cases have an erosive etiology as part of the cause
    • Two sources of acidic substrates causing erosive tooth wear: intrinsic (e.g., gastroesophageal reflux) and extrinsic (e.g., diet)
    • Perimylolysis: a condition characterized by the gradual dissolution of tooth enamel, often caused by gastric acid reflux

    Eating Disorders

    • 1% of young women are affected by anorexia
    • Ratio of females affected by eating disorders compared to males: 10:1
    • Condition associated with voluntary regurgitation: bulimia nervosa

    Tooth Surface Loss

    • Abfraction: the loss of tooth structure from eccentric occlusal loads leading to compressive and tensile stresses at the cervical fulcrum area of the tooth
    • Abrasion: type of tooth wear caused by abnormal rubbing of teeth by a non-dental object (e.g., nail biting, toothbrush)
    • Attrition: type of tooth wear characterized by broader, dished-out, shallow lesions, often caused by bruxism (teeth grinding)
    • Most common cause of abrasion: toothbrush and toothpaste
    • Most common cause of attrition: bruxism

    Restoration and Management

    • Survival rate of restorations for cervical lesions in 5 years: highest for glass ionomers
    • Material found to be more durable in managing cervical lesions but lacking polishability and aesthetic properties: composite resin
    • Suggested restorative material for abfraction lesions: glass ionomer or composite resin

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    Test your knowledge about erosion demineralization in dental health. Learn about the causes and effects of erosive tooth wear caused by acidic substrates.

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