Periodontology For Dental Therapy MCQs
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This test prepares a dental student for exam and scale his ability to respond to any question pertaining to periodontology. It is easy and quick. Go through it and enjoy the Quiz.
Questions and Answers
- 1.
Enumerate the major periodontal diseases and conditions (not include thesubclassifications) according to the AAP 1999 Classifications of periodontaldiseases and conditions.
- 2.
Periodontium include all of the following:
- A.
Enamel,root, periodontal ligaments and alveolar bone
- B.
Gum, alveolar bone, dentine and cementum
- C.
Cementum, gum, alveolar bone and periodontal ligaments
- D.
All of the above
Correct Answer
C. Cementum, gum, alveolar bone and periodontal ligamentsExplanation
The periodontium is the supporting structure of the teeth and includes the cementum, gum (also known as gingiva), alveolar bone, and periodontal ligaments. Cementum is a hard tissue that covers the root of the tooth, while the gum is the soft tissue that surrounds the teeth and covers the bone. The alveolar bone is the bone that surrounds and supports the teeth, and the periodontal ligaments are the connective tissues that attach the teeth to the bone. Therefore, the correct answer is "cementum, gum, alveolar bone, and periodontal ligaments."Rate this question:
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- 3.
The primary cause of periodontal diseases is
- A.
Calculus
- B.
Dental Plaque
- C.
Malocclusion
- D.
Faulty restoration
Correct Answer
B. Dental PlaqueExplanation
Dental plaque is the primary cause of periodontal diseases. Plaque is a sticky film that forms on the teeth and contains bacteria. If not removed through proper oral hygiene practices, plaque can harden into calculus (tartar), which can irritate and inflame the gums, leading to periodontal diseases such as gingivitis and periodontitis. Therefore, maintaining good oral hygiene by regularly brushing, flossing, and visiting the dentist for professional cleanings is essential to prevent and control periodontal diseases.Rate this question:
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- 4.
Root planning is
- A.
Removal of material alba and stains from tooth surface
- B.
Removal of soft tissue wall and periodontal pocket
- C.
Removal of food debris from tooth surface
- D.
Removal of diseased cementum along with other root deposits
Correct Answer
D. Removal of diseased cementum along with other root depositsExplanation
Root planning is the process of removing diseased cementum along with other root deposits from the tooth surface. This procedure is typically performed to treat periodontal disease, as the removal of these deposits helps to eliminate bacteria and promote healing of the gums. By removing the diseased cementum, the root planning procedure aims to create a clean and smooth root surface, which allows for better attachment of the gums to the tooth and prevents further progression of the disease.Rate this question:
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- 5.
The order of case scheme taking is as follows
- A.
Patient particulars, history of present illness,chief complaint and past medical history
- B.
Patient particulars, social and family history, chief complaint and history of present illness
- C.
Patient particulars, chief complaint, history of present illness and past medical history
- D.
None of the above
Correct Answer
C. Patient particulars, chief complaint, history of present illness and past medical historyExplanation
The correct answer is "Patient particulars, chief complaint, history of present illness and past medical history." This order makes sense because it starts with gathering basic information about the patient, then moves on to their chief complaint, which is the reason they are seeking medical attention. Next, the history of present illness is collected to understand the current problem in more detail. Finally, the past medical history is obtained to provide context and identify any previous conditions or treatments that may be relevant.Rate this question:
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- 6.
All the following are phases of periodontal treatment plan except:
- A.
Surgical phase
- B.
Maintenance phase
- C.
Non-surgical phase
- D.
Refractory phase
Correct Answer
D. Refractory phaseExplanation
The correct answer is "Refractory phase". Periodontal treatment plans typically consist of three phases: non-surgical phase, surgical phase, and maintenance phase. The non-surgical phase involves procedures such as scaling and root planing to remove plaque and tartar. The surgical phase may include procedures like gum surgery or bone grafting. The maintenance phase involves regular follow-up visits to monitor the patient's oral health and prevent further progression of periodontal disease. The refractory phase is not a recognized phase in periodontal treatment plans and is therefore not included in the options.Rate this question:
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- 7.
Which is the best method of brushing technique preferred for the patient with orthodontic appliance:
- A.
Charter's method
- B.
Bass method
- C.
Still man method
- D.
Both A and B are correct
Correct Answer
A. Charter's methodExplanation
Charter's method is the best method of brushing technique preferred for patients with orthodontic appliances. This method involves placing the bristles of the toothbrush at a 45-degree angle against the gumline and gently brushing in a circular motion. This technique helps to effectively remove plaque and food debris around the brackets and wires of the orthodontic appliance, reducing the risk of tooth decay and gum disease. The Bass method, on the other hand, is a general brushing technique that may not be as effective in cleaning around orthodontic appliances. Therefore, Charter's method is the recommended technique for these patients.Rate this question:
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- 8.
A 27 years-old preswents to your office all of the following: loss of interdental and marginal stippling, blue-red tissue color, and bleeding upon gentle probing. Your Diagnosis is:
- A.
Gingival recession
- B.
Systemic diseases
- C.
Chronic gingivitis
- D.
Advanced priodontal diseases
Correct Answer
C. Chronic gingivitisExplanation
The patient's presentation of loss of interdental and marginal stippling, blue-red tissue color, and bleeding upon gentle probing is consistent with chronic gingivitis. Chronic gingivitis is characterized by inflammation of the gums, which can cause these symptoms. The other options, such as gingival recession, systemic diseases, and advanced periodontal diseases, do not fully align with the given symptoms. Gingival recession refers to the exposure of the tooth root due to the gum tissue pulling away, while systemic diseases and advanced periodontal diseases would typically present with additional symptoms beyond what is described in the question.Rate this question:
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- 9.
Gracey curettes used to scale distal surface of posterior teeth are:
- A.
Gracey curretes 1/2, 3/4, and 11/12
- B.
Gracey curettes 11/12, 13/14, and 5/6
- C.
Gracey curettes 7/8 and 9/10
- D.
Gracey curettes 13/14 and 17/18
Correct Answer
D. Gracey curettes 13/14 and 17/18Explanation
Gracey curettes 13/14 and 17/18 are used to scale the distal surface of posterior teeth. These specific curettes have curved blades that allow for better access and adaptation to the curved distal surfaces of the teeth. The 13/14 curette is designed for the distal surfaces of premolars and molars in the upper jaw, while the 17/18 curette is designed for the distal surfaces of premolars and molars in the lower jaw. Using these curettes ensures effective removal of plaque and calculus from these areas.Rate this question:
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- 10.
Root caries usually occurs in old age.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Root caries is a type of tooth decay that specifically affects the roots of teeth. As people age, they may experience gum recession, which exposes the roots of their teeth. This exposure makes the roots more susceptible to decay, leading to the development of root caries. Therefore, it is true that root caries usually occurs in old age.Rate this question:
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- 11.
During an acute gingival inflammatory response, which of the following cell types can destroy virulent bacteria by phagocytosis and T-cell mediation?
- A.
Plasma cells
- B.
Mast cells
- C.
B-Limphocytes
- D.
Macrophage
- E.
Polymorhonuclear leukocyte
Correct Answer
D. MacrophageExplanation
Macrophages are a type of immune cell that can destroy virulent bacteria during an acute gingival inflammatory response. They can engulf and digest bacteria through a process called phagocytosis. Additionally, macrophages can also activate T-cells, which are another type of immune cell, to help in the destruction of bacteria. This T-cell mediation further enhances the immune response against the bacteria.Rate this question:
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- 12.
In the presence of abundant plaque formation, hyperplastic gingivitis can be associated with which of the following? 1. Mouth breathing 2. Cyclosporine 3. Procardia 4. Pregnancy 5. Phenytoin
- A.
1,3 and 5
- B.
Only 5
- C.
All of them
- D.
1,2,4 and 5
Correct Answer
C. All of themExplanation
In the presence of abundant plaque formation, hyperplastic gingivitis can be associated with all of the mentioned factors. Mouth breathing can lead to dry mouth, which reduces saliva production and increases plaque buildup. Cyclosporine, Procardia, and Phenytoin are medications that can cause gingival hyperplasia, a condition characterized by an overgrowth of gum tissue. Pregnancy can also lead to hormonal changes that increase the risk of gingivitis. Therefore, all of the options can be associated with hyperplastic gingivitis in the presence of abundant plaque formation.Rate this question:
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- 13.
In periodontal disease, loss of which of the following fiber bundles are primarily associated in preventing the progressive downward proliferation of the junctional epithelium into the periodontal ligament and alveolar bone?
- A.
Transseptal
- B.
Circular
- C.
Interradicular
- D.
Alveolar gingival
Correct Answer
A. TransseptalExplanation
Loss of the transseptal fiber bundles is primarily associated with preventing the progressive downward proliferation of the junctional epithelium into the periodontal ligament and alveolar bone in periodontal disease.Rate this question:
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- 14.
40 years diabetic patient, present clinically with periodontal attachment lossand diagnosed as having periodontitis. According to AAP 1999 classificationof periodontal diseases, the type of periodontitis in this case is:.
- A.
Aggressive periodontitis.
- B.
Periodontitis as a manifestation of systemic disease.
- C.
Chronic periodontitis modified by systemic condition
- D.
Generalized aggressive periodontitis
Correct Answer
B. Periodontitis as a manifestation of systemic disease.Explanation
The correct answer is "Periodontitis as a manifestation of systemic disease." This is because the patient is a 40-year-old diabetic, and diabetes is a systemic disease that can affect the periodontium. Periodontitis in this case is considered a manifestation of the patient's underlying systemic condition.Rate this question:
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- 15.
Which of the following statements accurately inter-relates the tooth and periodontium interface?
- A.
Junctional epithelial cells are oriented parallel to the root surface.
- B.
Periodontal ligament fibers insert in cementum and bone biochemically through fibronectin
- C.
The junctional epithelial cells are non-secreting cells.
- D.
The Lamina densa primarily contains hemidesmosomal plaques
- E.
Polymorphonuclear leukocytes can pass between junctional epithelium cells into the gingival sulcus/pocket.
Correct Answer(s)
B. Periodontal ligament fibers insert in cementum and bone biochemically through fibronectin
E. Polymorphonuclear leukocytes can pass between junctional epithelium cells into the gingival sulcus/pocket.Explanation
The correct answer states that periodontal ligament fibers insert in cementum and bone biochemically through fibronectin. This means that the fibers of the periodontal ligament, which connects the tooth to the surrounding bone, attach to the tooth surface and bone through a biochemical process involving fibronectin.
Additionally, the correct answer states that polymorphonuclear leukocytes can pass between junctional epithelium cells into the gingival sulcus/pocket. This means that certain types of white blood cells can move between the cells of the junctional epithelium, which is the tissue that forms the interface between the tooth and the gum tissue, and enter the space between the tooth and the gum known as the gingival sulcus or pocket.Rate this question:
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- 16.
Necrotizing ulcerative periodontitis
- A.
Is associated with deep periodontal pocket
- B.
Is associated with crater like depression at the tip of interdental papilla and vesicle formation
- C.
Is not responsive to any therapy
- D.
Leads to gingival recession due to faulty tooth brushing
Correct Answer
B. Is associated with crater like depression at the tip of interdental papilla and vesicle formationExplanation
Necrotizing ulcerative periodontitis is a severe form of periodontal disease that is characterized by the presence of a crater-like depression at the tip of the interdental papilla and vesicle formation. This condition is not responsive to any therapy, making it difficult to treat. Additionally, it can lead to gingival recession due to faulty tooth brushing. Therefore, the correct answer is that necrotizing ulcerative periodontitis is associated with a crater-like depression at the tip of the interdental papilla and vesicle formation.Rate this question:
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- 17.
The primary secretion by junction epithelial cells that provides adherence to the tooth root surface is _____________.
Correct Answer
LamininExplanation
The Key answer is LamininRate this question:
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