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DEOH 102- ORAL ENVIROMENT:HEALTH AND DISEASES EXAM |ACTUAL COMPLETE QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS ) ALREADY GRADED A+. CA$43.47   Add to cart
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DEOH 102- ORAL ENVIROMENT:HEALTH AND DISEASES EXAM |ACTUAL COMPLETE QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS ) ALREADY GRADED A+.
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DEOH 102- ORAL ENVIROMENT:HEALTH AND DISEASES EXAM 2024- 2025 |ACTUAL COMPLETE QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS ) ALREADY GRADED A+. DEOH 102- ORAL ENVIROMENT:HEALTH AND DISEASES EXAM 2024- 2025 |ACTUAL COMPLETE QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS ) ALREADY GRADE...

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  • August 27, 2024
  • 94
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • deoh 102
  • deoh 102 oral enviromenthealth and diseases exam
  • oral enviromenthealth and diseases exam

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  • DEOH 102- ORAL ENVIROMENT:HEALTH AND DISEASES
  • DEOH 102- ORAL ENVIROMENT:HEALTH AND DISEASES

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DEOH 102- ORAL ENVIROMENT:HEALTH AND DISEASES EXAM 2024-
2025 |ACTUAL COMPLETE QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS ) ALREADY GRADED A+.


How are micro-organisms transmitted? - ANSWER-1. Trauma
(including injection)
2. Bite
3. Droplet
4. Saliva
5. Faecal/Oral
6. Sexual
7. Transplacental


Define the term 'sterilisation' - ANSWER-a process that kills or
removes all types of micro-organisms including bacterial spores


Define the term 'disinfection' - ANSWER-a process that reduces the
number of pathogenic micro-organisms to a level that is unlikely to
result in infection


Steam sterilisation is also known as 'autoclaving', name the
advantages and disadvantages of this method of sterilisation as well
as ideal: 1. Temperature
2. Pressure
3. Time - ANSWER-Advantages:
- very effective penetration
- non-toxic

,- time-efficient


Disadvantages:
- corrosive to carbon-steel
- damages rubber and some plastics
- wets paper packaging


1. Temperature: 121C
2. Pressure: 115kPa
3. Time: 15-30 minutes


Name the type of sterilisation method that involves radioactive Cobalt
and what is it usually used for? - ANSWER-Gamma irradiation and it is
generally used industrially for sterilising packaged items (syringes,
gloves etc) and single use items


What are the 2 ways we can monitor the efficacy of sterilisation? -
ANSWER-1. Biological monitoring:
- bacterial spores used as Biological Indicator
- not practical for every sterilisation cycle (weekly)


2. Chemical monitoring:
- heat-sensitive inks
- also serves to label sterile and non-sterile items

,What type of organisms should disinfectants be effective against? -
ANSWER-Tuberculosis and hydrophillic viruses (plus most viruses)
What are the functions of saliva? - ANSWER-1. Protective:

- Lubrication/hydration
- maintaining pH homeostasis
- Remineralisation
- Host defences


2. Digestive -
Enzymatic
- Bolus formation


What are the resting and stimulated flow ratesd of saliva? -
ANSWERResting flow rate:
- 0.32 ml/min


Stimulated flow rate:
- 1.5-2 ml/min


What is the normal pH range and mean pH of saliva? - ANSWER-ph:
6.2-7.6 mean
pH: 6.75


What are the 8 organic and 6 inorganic components of saliva? -
ANSWER-Organic:
1. Protein

, 2. IgA
3. IgG
4. IgM
5. C3
6. a-Amylase
7. Lysozyme
8. Albumin


Inorganic:
1. Sodium
2. Potassium
3. Calcium
4. Magnesium
5. Phosphate
6. Bicarbonate


Saliva is what percent water? - ANSWER-99.5%


How is the calcium in saliva divided? - ANSWER-1. 50% ionised to
Ca2+ >6.5


2. 30% as non-ionised phosphate and bicarbonate salts
- <10% bound to other small molecules eg. Citrate


3. 10-30% to specific calcium-binding macromolecules to prevent
precipitation:
- histidine-rich proteins (HRPs)

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