What happens to atherosclerotic plaque?

What happens to atherosclerotic plaque?
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1 Answer

Answer :

This leads to narrowing of vessel wall. Then fibrous proliferation takes place, this is due to liberation of various growth factors. Again a clot is formed which occludes one of the major vessels. Then there is ischemia of the tissue supplied. Finally infarction or ischemic death of the tissue occurs.
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A patient is resistant to caries but has a periodontal disease. In this case, sucrose in diet is important because: A. Sucrose is greatly involved in plaque development B. S. mutans produces Levans frictions which are used by periodontal pathogens C. The streptococcus mutans cannot survive with a continual supply of sucrose D. Existing plaque must continue to get sucrose in order to grow

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The first forming microbial elements of plaque are: A. Aerobic gram positive G+ B. Aerobic gram negative G C. Anaerobic gram negative G D. Spirochetes E. Anaerobic gram positive G+

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The advantage of using dental floss over rubber point interdentally: A. Remove plaque and debris in interproximal surfaces B. Polish C. Massage of the interdental papillae D. Aid and recognise subgingivally

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The MOST common cause of gingiva irritation is: A. Calculus B. Plaque C. Caries D. Restorative material

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Which statement BEST describes plaque: A. It is a soft film composed mainly of food debris and can not be rinsed off teeth B. It is a soft film composed mainly of food debris and can be rinsed off teeth C. It is a soft film composed mainly of none calcified bacteria and can not be rinsed off the teeth D. It is a soft film composed mainly of dextran and can not be rinsed off the teeth E. It is a soft film composed mainly of dextran and can be rinsed off teeth.

Description : Which statement BEST describes plaque: A. It is a soft film composed mainly of food debris and can not be rinsed off teeth B. It is a soft film composed mainly of food debris and can be rinsed off ... rinsed off the teeth E. It is a soft film composed mainly of dextran and can be rinsed off teeth.

Last Answer : C. It is a soft film composed mainly of none calcified bacteria and can not be rinsed off the teeth

Why do you construct a lower removable partial denture with lingual bar: A. It is used when the space between raised floor, mouth and gingival margin is minimal B. Plaque accumulation is less than with lingual plate C. Should be made thicker when short

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Why do you polish the teeth before seating of a partial denture: A. To smooth the rough surface B. To minimise the retention of plaque C. To increase the adoptability of occlusal rests

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Last Answer : B. To minimise the retention of plaque

.In developing plaque; the adhesive polymer produced by streptococcus mutans is synthesis from: A. Glucose B. Fructose C. Sucrose D. Lactose E. Amylose

Description : .In developing plaque; the adhesive polymer produced by streptococcus mutans is synthesis from: A. Glucose B. Fructose C. Sucrose D. Lactose E. Amylose

Last Answer : C. Sucrose

Which of the following is true in relation to dental decay? A. Foods that require vigorous mastication will increase salivary flow and reduce PH B. Tooth brushing immediately after meals is most effective because demineralisation has already started C. Food that encourage the mastication will increase the number of lymphocytes in saliva and thus reduce decay D. Vigorous mastication will increase plaque PH and lead to reduce of decays E. The Stephan Curve describes an increase in PH during a meal with resultant of demineralisation

Description : Which of the following is true in relation to dental decay? A. Foods that require vigorous mastication will increase salivary flow and reduce PH B. Tooth brushing immediately after meals is most ... E. The Stephan Curve describes an increase in PH during a meal with resultant of demineralisation

Last Answer : E. The Stephan Curve describes an increase in PH during a meal with resultant of demineralisation

Plaque is considered as an infection because: A. Antibiotic therapy prevents or stop its formation B. Indication of bacterial activity C. It is common to both animal and human

Description : Plaque is considered as an infection because: A. Antibiotic therapy prevents or stop its formation B. Indication of bacterial activity C. It is common to both animal and human

Last Answer : B. Indication of bacterial activity

Patient presents with rapidly progressive root caries on many teeth. Which of the following laboratory results would be a possible indicator of this? A. Stimulated salivary secretion rate of 1.5ml/min B. S. mutans concentration of 105 organism/ml C. A plaque sample containing 5% S. mutans D. A lactobacilli concentration of 105 organism/ml E. Salivary buffering PH 5.5 > 100000 CFU/ml high caries incidence

Description : Patient presents with rapidly progressive root caries on many teeth. Which of the following laboratory results would be a possible indicator of this? A. Stimulated salivary secretion rate of 1.5ml/min B. ... of 105 organism/ml E. Salivary buffering PH 5.5 > 100000 CFU/ml high caries incidence

Last Answer : E. Salivary buffering PH 5.5