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Questions and Answers
What is a key characteristic of the pain associated with dentine hypersensitivity?
What is a key characteristic of the pain associated with dentine hypersensitivity?
Which of the following best explains the mechanism behind dentine hypersensitivity?
Which of the following best explains the mechanism behind dentine hypersensitivity?
Which of the following factors could potentially increase a tooth's susceptibility to dentine hypersensitivity?
Which of the following factors could potentially increase a tooth's susceptibility to dentine hypersensitivity?
What role does the dental therapist play in managing dentine hypersensitivity?
What role does the dental therapist play in managing dentine hypersensitivity?
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Which symptom would most likely indicate dentine hypersensitivity?
Which symptom would most likely indicate dentine hypersensitivity?
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Which symptom might indicate the presence of dentine hypersensitivity?
Which symptom might indicate the presence of dentine hypersensitivity?
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What should be the first step in diagnosing dentine hypersensitivity?
What should be the first step in diagnosing dentine hypersensitivity?
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Which of the following is NOT a suggested method for patients to manage dentine hypersensitivity at home?
Which of the following is NOT a suggested method for patients to manage dentine hypersensitivity at home?
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Which component helps in occluding the dentinal tubules?
Which component helps in occluding the dentinal tubules?
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What is the primary role of dental hygienists in managing dentine hypersensitivity?
What is the primary role of dental hygienists in managing dentine hypersensitivity?
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Which agent is known for its ability to desensitize nerves in the context of dentine hypersensitivity?
Which agent is known for its ability to desensitize nerves in the context of dentine hypersensitivity?
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Which of the following is an important factor to consider during history taking for dentine hypersensitivity evaluation?
Which of the following is an important factor to consider during history taking for dentine hypersensitivity evaluation?
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When managing dentine hypersensitivity, what is the purpose of referring to a general dental practitioner (GDP)?
When managing dentine hypersensitivity, what is the purpose of referring to a general dental practitioner (GDP)?
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What compounds are suitable for occluding dentinal tubules by forming precipitates in an acidic environment?
What compounds are suitable for occluding dentinal tubules by forming precipitates in an acidic environment?
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Which of the following statements is incorrect regarding the use of potassium nitrate in toothpaste?
Which of the following statements is incorrect regarding the use of potassium nitrate in toothpaste?
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Which of these methods is recommended to enhance the long-term benefits of chemical agents applied to tooth surfaces?
Which of these methods is recommended to enhance the long-term benefits of chemical agents applied to tooth surfaces?
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What is the role of fluoride in managing dentine hypersensitivity?
What is the role of fluoride in managing dentine hypersensitivity?
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What is a common agent used at home for immediate relief from dentine hypersensitivity?
What is a common agent used at home for immediate relief from dentine hypersensitivity?
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Which of the following treatments has been classified under professional treatment for dentine hypersensitivity?
Which of the following treatments has been classified under professional treatment for dentine hypersensitivity?
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What effect does the high concentration of extracellular potassium have on nerve fibers?
What effect does the high concentration of extracellular potassium have on nerve fibers?
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Which method is NOT mentioned for improving the efficacy of agents used for dentinal tubule occlusion?
Which method is NOT mentioned for improving the efficacy of agents used for dentinal tubule occlusion?
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Which theory suggests that nerves directly transmit pain through dentinal tubules?
Which theory suggests that nerves directly transmit pain through dentinal tubules?
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What percentage of the dentine volume is made up of water?
What percentage of the dentine volume is made up of water?
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Which of the following is not a stimulus that can cause pain from exposed dentine?
Which of the following is not a stimulus that can cause pain from exposed dentine?
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What is one way dentine may become exposed due to natural morphology?
What is one way dentine may become exposed due to natural morphology?
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Which of the following statements defines dentin hypersensitivity according to the Canadian Advisory Board?
Which of the following statements defines dentin hypersensitivity according to the Canadian Advisory Board?
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Which mechanism involves fluid movement from an area of high concentration to an area of low concentration?
Which mechanism involves fluid movement from an area of high concentration to an area of low concentration?
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What could be a potential cause of mechanical stimulation that contributes to exposing dentine?
What could be a potential cause of mechanical stimulation that contributes to exposing dentine?
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Which of the following activities might lead to localized gingival recession?
Which of the following activities might lead to localized gingival recession?
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Flashcards
Dentine Hypersensitivity
Dentine Hypersensitivity
A condition where stimulus causes sharp pain in exposed dentine.
Typical Presentation
Typical Presentation
Dentine hypersensitivity pain is short, sharp, and resolves quickly.
Susceptible Tooth
Susceptible Tooth
A tooth that is exposed or lacks protective enamel, making it sensitive.
Pain Mechanism
Pain Mechanism
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Management Role
Management Role
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Enamel
Enamel
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Dentin
Dentin
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Pulp
Pulp
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Hydrodynamic Theory
Hydrodynamic Theory
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Osmosis
Osmosis
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Stimuli for Sensitivity
Stimuli for Sensitivity
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Causes of Exposed Dentin
Causes of Exposed Dentin
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Dentinal Tubules Occlusion
Dentinal Tubules Occlusion
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Temporary Agents
Temporary Agents
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Arginine in toothpaste
Arginine in toothpaste
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Bioactive Glass
Bioactive Glass
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Stannous Fluoride
Stannous Fluoride
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Potassium Nitrate
Potassium Nitrate
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Fluoride's Role
Fluoride's Role
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Spit vs Rinse
Spit vs Rinse
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Clinical Examination
Clinical Examination
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Verbal History Taking
Verbal History Taking
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Dentine Exposure
Dentine Exposure
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Prevent Tubule Exposure
Prevent Tubule Exposure
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Home Care for Patients
Home Care for Patients
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Mechanism of Action
Mechanism of Action
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Desensitizing Agents
Desensitizing Agents
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Study Notes
Dentine Hypersensitivity
- Dentine hypersensitivity is a condition characterized by pain in response to stimuli.
- Pain is short-duration, rapid onset, sharp, and quickly resolves in the absence of other symptoms.
- The pain is triggered by stimuli like hot, cold, acidic, tactile, and osmotic substances.
- The aetiology of dentine hypersensitivity involves exposed dentine, caused by different factors.
Causes of Exposed Dentine
- Natural Morphology: In some cases, the natural arrangement of enamel and cementum results in exposed dentine.
- 60%-65% of enamel might overlap cementum
- 30% can be edge-to-edge
- 5%-10% where enamel and cementum do not meet
- Localised Gingival Recession: Factors such as tooth-brushing, nail-biting, using items, piercings, high frenum, periodontal disease, and lack of keratinized tissue lead to exposed dentine.
- Generalised Gingival Recession: This can result from periodontal treatment.
- Tooth Surface Loss: Erosion, abrasion, abfraction, and attrition.
- Diagnosis of other issues: Issues like cavities, decay and other dental disorders
Pain and Mechanisms
- Stimulus + Susceptible Tooth = Dentine Hypersensitivity*
- The pain is caused by a stimulus affecting exposed dentine (and reaching the pulp).
- Hydro-Dynamic Theory: Fluid (water) movement through the dentinal tubules causes pain.
- Direct Innervation Theory: Nerves in the dentine register the stimulus directly.
- Odontal Blast Theory: Odontoblasts (cells that form dentin) sense the stimulus directly.
How is the pain measured?
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Short duration
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Rapid onset
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Sharp pain
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Quickly resolves
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In the absence of other symptoms
How to diagnose?
- History-Taking:
- What: elicits the type of sensitivity
- Where: the exact location
- When: when the sensation is felt
- How Long: the duration of the sensation
- How often: how frequently is the sensation experienced
- Examination: checking the tooth morphology and presence of exposed dentine (3 in 1 - to confirm symptoms and identify areas of interest)
Treatment
- Dental Hygiene and Therapists Role:
- Identify the cause of pain
- Identify the aetiological factors (e.g., diet history, oral hygiene)
- Educate the patient about the problem
- Provide preventative management and advice (e.g., brushing techniques, sensitivity-specific toothpaste)
- Refer complex cases to a General Dentist (GDP)
- Professional Treatment: Management of exposed dentin with agents.
- Home Care:
- Mechanisms of actions that can either remove the stimulus, occlude tubules, and desensitize nerves.
- Use of toothpaste containing potassium nitrate.
- Using sensitive-specific toothpaste.
Agents Used at Home
- Colgate: Sensitivity instant relief - Arginine
- Sensodyne: Rapid - Contains stannous fluoride to occlude tubules; Repair and protect - Contains stannous fluoride to occlude tubules
- Fluoride: Reduces dentin hypersensitivity.
Summary
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Dentine hypersensitivity is diagnosed by identifying the cause of the pain and the aetiological factors.
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Treatment includes education, professional agents, or home care.
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Solutions involve using agents that stick to the tooth surface or using high concentrations of fluoride.
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Continuing daily use of these agents allows for longer-lived benefits.
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Disclaimer: This information is for educational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified dentist or other qualified healthcare providers with any questions you may have regarding medical conditions.
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Description
Explore the causes and characteristics of dentine hypersensitivity in this quiz. Understand how pain is triggered by various stimuli and the factors leading to exposed dentine. Test your knowledge on this dental condition and its implications.