Biocompatibility Of Dental Materials Essay Question And Answers

Biocompatibility Of Dental Materials Short Essays

Question 1. Evaluation of toxicity of dental materials

Evaluation of toxicity of dental materials

  • There are three basic types of tests to evaluate the toxicity of dental materials
  • They are as follows:

Biocompatibility Of Dental Materials Toxicity Of Dental Materials

Question 2. Biocompatibility of dental materials

Biocompatibility of dental materials

  • Biocompatibility is the ability of a material to elicit an appropriate biological response in a given application in the body
  • It is the interaction between the body and the material
  • It is a dynamic interaction
  • It depends upon
  1. Location of the material
  2. Its duration in the body
  3. Properties of the material
  4. The health of the host
  5. Biocompatibility in a young person differs from that in an older individual
  6. A biological interface is created when the material is placed in the body
  7. Biological tests are
  • In vitro tests
  • Animal tests
  • Usage tests

Dental materials Clinical Guidelines:

1. Define the use of the material

  • First how the material will be used must be considered
  • Next, the composition of the material is considered
  • Even very small changes in the composition or processing of a material can alter its biocompatibility

2. Define how the material has been tested

  • Which test is to be used must be decided
  • The testing conditions must be as relevant as possible

3. Think in terms of risk and benefit

Though no material is 100% safe, the use of materials in the body requires a risk-benefit analysis

MCA 21 And Filling In XBRL

Biocompatibility Of Dental Materials Short Question And Answers

Question 1. Toxic effects of materials

1. Toxic effects of materials Toxicity

Some of the materials may release substances into the patient’s body in adequate amounts and cause toxicity

2. Toxic effects of materials Inflammation

  • It involves the activation of the host’s immune system
  • It may result from toxicity or allergy
  • It results in edema of the tissue with infiltration of inflammatory cells and other lymphocytic cells

3. Toxic effects of materials Allergy

  • Allergic reactions occur when the body treats the material as foreign material
  • It involves T and B lymphocytes, monocytes, or macrophages

4. Toxic effects of materials Mutagenic reactions

  • It alters the base pair sequences of the DNA in cells
  • They are caused by

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  • Direct interactions between a substance and DNA
  • Indirect alterations in cellular processes

5. Toxic effects of materials Local effects

Local effects occur in the pulp of the tooth, in the periodontium, at the root apex, in buccal mucosa or tongue

6. Toxic effects of materials Systemic effects

It involves the distribution of materials via simple diffusion or through lymphatics or blood vessels

7. Toxic effects of materials Immunotoxicity

It may result from a material causing either an increase or decrease in cellular function

Question 2. Microleakage and its Significance

Microleakage and its Significance

  • When the restorative material fails to adhere well to the tooth surface, a microscopic space exists between the restoration and the preparation cavity
  • Fluids, microorganisms, and oral debris can penetrate freely along this space
  • This phenomenon is called microleakage
  • It leads to
  1. Secondary caries
  2. Stain or discoloration
  3. Sensitivity

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