Chapter 2 Pharmacologic Principles Copyright © 2014 by Mosby, an imprint of Elsevier Inc.
Chapter 16 Biofilms Copyright © 2014 by Mosby, an imprint of Elsevier Inc.
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Chapter 16 Biofilms Copyright © 2014 by Mosby, an imprint of Elsevier Inc.
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Transcript of Chapter 16 Biofilms Copyright © 2014 by Mosby, an imprint of Elsevier Inc.
Chapter 16
Biofilms
Copyright © 2014 by Mosby, an imprint of Elsevier Inc.
Biofilms
After reading this chapter, the student will be able to: Define the origin and components of cuticle. Discuss the composition of acquired pellicle and
plaque. Describe the location and composition of calculus. Explain why saliva is important in determining oral
health.
2Copyright © 2014 by Mosby, an imprint of Elsevier Inc.
Biofilms
Cuticle Acquired pellicle Plaque Calculus
Copyright © 2014 by Mosby, an imprint of Elsevier Inc. 3
Primary or Developmental Cuticle
Deposited by the ameloblasts
Thin, structureless protein membrane
Reduced enamel epithelium is the outer cuticle surface.
Reduced enamel epithelium is lost during tooth eruption .
Copyright © 2014 by Mosby, an imprint of Elsevier Inc. 4
Primary or Developmental Cuticle
Most important function: Cuticular protein that initiates attachment of the junctional epithelium to enamel.
Copyright © 2014 by Mosby, an imprint of Elsevier Inc. 5
Acquired Pellicle
A thin, structureless membrane about 0.5 to 1.0 µm thick
Composed of salivary proteins and glycoproteins
Although bacteria-free when formed, rapidly attracts bacteria
Copyright © 2014 by Mosby, an imprint of Elsevier Inc. 6
Acquired Pellicle
Although the acquired pellicle is considered protective to the enamel surface, it does provide an attachment site for bacteria.
Copyright © 2014 by Mosby, an imprint of Elsevier Inc. 7
Plaque
Copyright © 2014 by Mosby, an imprint of Elsevier Inc. 8
Plaque Organisms attach to the pellicle and use the
presence of debris in acid formation.
Copyright © 2014 by Mosby, an imprint of Elsevier Inc. 9
Plaque
Salivary corpuscles: An increase in leukocytes in saliva is indicative of gingival inflammation.
Copyright © 2014 by Mosby, an imprint of Elsevier Inc. 10
Plaque
Copyright © 2014 by Mosby, an imprint of Elsevier Inc. 11
Plaque
Copyright © 2014 by Mosby, an imprint of Elsevier Inc. 12
Plaque
Copyright © 2014 by Mosby, an imprint of Elsevier Inc. 13
Calculus
Copyright © 2014 by Mosby, an imprint of Elsevier Inc. 14
Calculus
Copyright © 2014 by Mosby, an imprint of Elsevier Inc. 15
Calculus
Copyright © 2014 by Mosby, an imprint of Elsevier Inc. 16
Questions and Considerations
Some patients seem to have heavier deposits of calculus, whereas other patients seem to have little calculus buildup but are susceptible to development of carious lesions. Discuss this phenomenon.
What patient education points are important to emphasize to help the patient understand the difference between plaque and calculus?
Copyright © 2014 by Mosby, an imprint of Elsevier Inc. 17
