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![References
Philip D Marsh and Michael V Martin.”Introduction” in Oral Microbiology, 5th Edition. Churchil
Livingstone, 2009, pp 1-7.
Todar’s Online Textbook of Bacteriology, Internet: http://textbookofbacteriology.net/normalflora.html
[Mar 3, 2012]
Fig 1. http://www.shutterstock.com/pic-51438295/stock-vector-oral-cavity.html
Fig 2. “Complex Communities” in Oral Microbiology at a Glance, Wiley-Blackwell, 2010. pp 28.
Friday, March 23, 2012](https://image.slidesharecdn.com/normaloralflora-130321022122-phpapp02/85/The-Human-Oral-Microflora-33-320.jpg)
Uploaded byDr. Ali Yaldrum
The Human Oral Microflora
This document summarizes a lecture on the human oral microbiota. It defines oral microbiota as the microorganisms residing in the oral cavity. The oral cavity hosts a diverse ecosystem of microbes, including streptococcus, actinomyces, and fusobacterium species. These microbes colonize different oral sites as the oral environment changes with age. The microbiota exists in a symbiotic relationship with the host, but imbalances can lead to diseases like caries and periodontitis. Maintaining a balanced oral microbiota is important for both oral and general health.
The Human Oral Microflora
- 1. TITLE THE HUMAN ORAL MICROFLORA DR.ALI YALDRUM DATE CLASS 22-03-12 1ST YEAR B.D.S Friday, March 23, 2012
- 2. Lecture Objectives At the end of this lecture students should be able to Describe what is Human Microflora, Oral Microflora Describe the importance of relationship between host and microflora Describe the diverse ecosystem of Oral Microflora Describe the relationship between Oral Health and General Health Friday, March 23, 2012
- 3. WHAT IS NORMAL MICROFLORA Friday, March 23, 2012
- 4. ‘is the aggregateof microorganism that reside on the surface and in deep layers of skin, in the saliva and oral mucosa, in the conjuctiva, and in the gastrointestinal tracts.’ Friday, March 23, 2012
- 5. Microflora is amisnomer, Researchers prefer “Microbiota” In a healthy human, internal tissues are devoid of microorganisms Brain, Blood, Muscles etc Friday, March 23, 2012
- 6. human body containsan estimated up of 1014 cells only 10% are mammalian cells 90% are resident microbiota Friday, March 23, 2012
- 7. so what isoral microflora? the microflora existing in the oral cavity is called as oral microflora. Friday, March 23, 2012
- 8. FUNCTIONS OF ORAL CAVITY Friday, March 23, 2012
- 9. COMMUNICATION DIGESTIVE SENSORY GENERAL HEALTH FIG.1 Friday, March 23, 2012
- 10. ORAL MICROFLORA Friday, March 23, 2012
- 11. The presence ofnutrients, epithelial debris and secretions makes the mouth a favorable habitat for a variety of microorganisms Streptococcus Actinomyces Prevotella Fusobacterium Friday, March 23, 2012
- 12. The oral cavityrepresents a unique environment succession of different ecological situations with age corresponds with the changes in the composition of normal flora Friday, March 23, 2012
- 13. Haemophilus Corynebacterium Neisseria S. mitis S. mitis Staphylococcus S. pneumoniae Streptococcus Actinomyces S. pyogenes Fusobacterium S. salivarius Porphyromonas Candida Streptococcus FIG.2 SITE SPECIFICITY OF MICROBIAL ADHERENCE & COLONIZATION Friday, March 23, 2012
- 14. at birth theoral cavity is composed solely of the soft tissues of the lips, cheeks, soft palate and tongue. kept moist by the salivary secretions Friday, March 23, 2012
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- 17. other species ofstreptococci adhere strongly to gums and soft tissues with the creation of gingival crevice area increases the habitat for the variety of anaerobic species complexity continues to increase with time Friday, March 23, 2012
- 18. RELATIONSHIP BETWEEN HOST AND MICROFLORA Friday, March 23, 2012
- 19. does not havea passive relationship Beneficial association contributes directly and indirectly to the normal development physiology nutrition defense Friday, March 23, 2012
- 20. Microbial colonization ofall environmentally accessible surfaces begins at birth Exposed to wide range of microorganisms Each surface is suitable for colonization by a proportion of these microbes Acquisition, selection and natural development of diverse but characteristic microflora Friday, March 23, 2012
- 21. Microbial flora existsin a harmonious relationship with the host if this relationship breaks down, disease can occur in mouth this relationship is more prone to breakdown than other parts of the body Friday, March 23, 2012
- 22. Breakdown is usuallyassociated with major changes to the biology of mouth from exogenous sources presence of the microorganisms at sites not normally accessible to them such microorganisms are termed as ‘opportunistic pathogens’ Friday, March 23, 2012
- 23. Many oral microorganismshave capacity to behave as opportunistic pathogens Common clinical manifestations of oral microflora imbalance are Dental Caries Periodontal diseases Friday, March 23, 2012
- 24. Dental Caries ‘is the dissolution of enamel or root surfaces (demineralization) by acid produced primarily by fermentation of carbohydrates in the diet by bacteria colonizing the tooth surface (dental plaque).’ Friday, March 23, 2012
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- 26. MICROBIAL ECOLOGY Friday, March 23, 2012
- 27. DISEASE SUSCEPTIBLE KEY ORAL HOST MICROORGANISM ENVIRONMENTAL TRIGGER THE INTERRELATIONSHIPS THAT LEAD TO ORAL DISEASE. Friday, March 23, 2012
- 28. SALIVA LIFESTYLE ORAL MICROBIAL ECOLOGY HOST MICROFLORA DEFENSES INTER-RELATIONSHIPS THAT INFLUENCE THE MICROBIAL ECOLOGY OF THE MOUTH IN HEALTH & DISEASE Friday, March 23, 2012
- 29. THE ORAL MICROFLORA AND GENERAL HEALTH Friday, March 23, 2012
- 30. Newer evidence isaccumulating suggests that periodontal diseases have an impact on general health. Friday, March 23, 2012
- 31. PRETERM LABOR DIABETES/ GLYCEMIC ENTER BLOOD STREAM CONTROL PRETERM LOW BIRTH TRANSIENT BACTERAEMIAS WEIGHT ATHEROSCLEROSIS CORONARY HEART DISEASE Friday, March 23, 2012
- 32. RESERVOIR FOR HELICOBACTER PYLORI OPPORTUNISTIC PATHOGENS (GASTROESOPHAGEAL REFLUX) ASPIRATION OF THESE PATHOGENS INTO LOWER RESPIRATORY TRACT CAN LEAD TO SERIOUS LUNG DETECTED IN DENTAL PLAQUE INFECTION LINKED WITH DEEP PERIODONTAL POCKETS CHRONIC GASTRITIS & STOMACH ULCERS Friday, March 23, 2012
- 33. References Philip D Marsh and Michael V Martin.”Introduction” in Oral Microbiology, 5th Edition. Churchil Livingstone, 2009, pp 1-7. Todar’s Online Textbook of Bacteriology, Internet: http://textbookofbacteriology.net/normalflora.html [Mar 3, 2012] Fig 1. http://www.shutterstock.com/pic-51438295/stock-vector-oral-cavity.html Fig 2. “Complex Communities” in Oral Microbiology at a Glance, Wiley-Blackwell, 2010. pp 28. Friday, March 23, 2012