Non Carious Lesions And Management Question And Answers

Non-Carious Lesion Long Essays

Question 1. Define class 5 cavity. Enumerate various materials used for restoring it. Add a note on abstraction.

Answer:

Class 5 cavity: Caries on the gingival third of facial and lingual or palatal surfaces of all teeth

Materials Used For Its Restoration:

  • GIC
  • Composite
  • Silver Amalgam

Abfraction:

  • Wedge-type defects usually occur in cervical areas of the tooth due to excessive occlusal stresses or parafunctional habits

Non Carious Lesion Abfraction lesions may appear as minor cracks in early stages but in later stages they appear as grooves extending into dentin

Etiology: Occlusal loading on the tooth

Features:

  • Single tooth involvement
  • Sharply defined wedge-shaped defect
  • Involvement of facial surfaces
  • Initially, minor irregular crack on the enamel
  • Later, the notch extending into dentin

Management of Abrasion, Erosion, and Abfraction:

1. Preventive:

  • Correct occlusal disharmony
  • Use of appliances to prevent bruxism
  • Correct ill fitting metal clasps/dentures

2. Restorative:

  • Materials used
  • Composite resins
  • Glass Ionomer cement
  • Silver amalgam

3. Endodontic treatment

4. Periodontic treatment

Non-Carious Lesion Short Essays

Question 1. Non-carious lesions and its management.

Answer:

Non-carious lesions and its management:

  1. Erosion: It is the loss of tooth substance caused by a chemical process that does not involve known bacterial action.
  2. Abrasion: It is the loss of tooth substance through some abnormal mechanical process other than tooth contact
  3. Abfraction: Wedge-type defects usually occur in cervical areas of the tooth due to excessive occlusal stresses or parafunctional habits

Etiology: Occlusal loading on the tooth

Question 2. Erosion.

Answer:

Erosion:

Definition – It is the loss of tooth substance caused by a chemical process that does not involve known bacterial action.

Causes:

1. Intrinsic:

  • Eating disorder
  • Gastrointestinal disorder
  • Chronic alcoholism
  • Pregnancy morning sickness

2. Extrinsic:

  • Dietary origin
  • Occupational
  • Drug-induced – Aspirin

Features:

  • Broad saucer-shaped depression
  • Surface – smooth, hard, and polished

Read And Learn More: Operative Dentistry Short And Long Essay Question And Answers

  • Sensitive tooth
  • Site – Gingival third of the labial surface of anterior

Question 3. Abrasion.

Answer:

Abrasion:

Definition:

  • It is the loss of tooth substance through some abnormal mechanical process other than tooth contact

Causes:

  • Faulty oral hygiene practice
  • Abnormal oral habits

Features:

  • Saucer shaped indentation
  • Smooth, shiny surface
  • Teeth affected – canines and premolars
  • Unilateral
  • Sharply defined margins and internal angles

Non-Carious Lesion Viva Voce

  • Abrasion is seen as a sharp 5-shaped notch in a gingival portion of the facial aspect of the tooth
  • Abfraction seen as sharp notch or wedge-shaped lesions

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