MCQs 303 Periodontology Prof. Lim Sokun 2019

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Uhsdental
U
Uhsdental
Community Contributor
Quizzes Created: 7 | Total Attempts: 17,390
| Attempts: 586
SettingsSettings
Please wait...
  • 1/303 Questions

    Resorption of cementum may occur in:

    • All of the above.
    • Erupted tooth
    • Partially erupted tooth
    • Unerupted tooth
Please wait...
About This Quiz

This quiz, titled 'MCQs 303 Periodontology Prof. Lim Sokun 2019', assesses knowledge on structures and functions related to periodontology, including the enamel organ, tooth germ, and periodontal tissues. It is designed for dental students and professionals to evaluate their understanding of periodontal anatomy and physiology.

MCQs 303 Periodontology Prof. Lim Sokun 2019 - Quiz

Quiz Preview

  • 2. 

    Cross-section of sickle scaler is:

    • Triangular

    • Half circular

    • Circular

    • Oval

    Correct Answer
    A. Triangular
    Explanation
    The cross-section of a sickle scaler is triangular. This shape allows for effective removal of plaque and tartar from the teeth. The sharp edges of the triangular scaler can easily access tight spaces and effectively scrape away build-up. The triangular shape also provides stability and control during the scaling process.

    Rate this question:

  • 3. 

    Which of the following structures does not belong to the periodontal tissues?

    • Basal bone

    • Alveolar bone

    • Cementum

    • Alveolar bone Cementum

    Correct Answer
    A. Basal bone
    Explanation
    Basal bone does not belong to the periodontal tissues because it is not directly involved in the support and attachment of the teeth. Basal bone refers to the bone that forms the base of the skull and the lower part of the jawbone, whereas periodontal tissues specifically refer to the structures surrounding and supporting the teeth, such as alveolar bone and cementum.

    Rate this question:

  • 4. 

    The narrowest zone of gingiva is found in the region of?

    • The buccal surface of the mandibular canine and first premolar

    • The buccal surface of the maxillary first molar

    • The lingual surface of the mandibular first molar

    • The buccal surface of the maxillary first molar The lingual surface of the mandibular first molar

    Correct Answer
    A. The buccal surface of the mandibular canine and first premolar
    Explanation
    The narrowest zone of gingiva is found in the region of the buccal surface of the mandibular canine and first premolar. This is because the gingiva in this area is thinner compared to other areas in the mouth. The buccal surface refers to the outer surface of the teeth facing the cheeks or lips.

    Rate this question:

  • 5. 

    Periodontal flap surgery:

    • Results in the formation of a long junction epithelium, Frequently results in compromised aesthetics through gingival recession

    • Is indicated when non-surgical treatment is contraindicated owing to poor plaque control

    • Is the surgical treatment of choice for druginduced gingival overgrowth

    • Usually results in loss of the keratinised gingiva

    Correct Answer
    A. Results in the formation of a long junction epithelium, Frequently results in compromised aesthetics through gingival recession
    Explanation
    Periodontal flap surgery results in the formation of a long junction epithelium, which means that the epithelial attachment is formed at a lower position on the tooth surface compared to its original position. This can lead to compromised aesthetics through gingival recession, as the gum tissue may recede and expose more of the tooth surface. Therefore, this surgical procedure often results in aesthetic issues for the patient.

    Rate this question:

  • 6. 

    The bacteria detected in localized aggressive periodontitis are:

    • Actinobacillus actinomycetemcomitans, capnocytophaga Spp., Eikenella corrodens, campylobacter rectus, prevotella intermedia

    • Borrelia vincenti, medium size spirochetes and Fusiformis, Tanerella forsythus.

    • Mycoplasma, capnocytophaga sputigena, spirocheles.

    • Treponema denticola, fusobacterium nucleatum, rectus, Actinobacillus Actinomycetem comitans.

    Correct Answer
    A. Actinobacillus actinomycetemcomitans, capnocytophaga Spp., Eikenella corrodens, campylobacter rectus, prevotella intermedia
    Explanation
    The correct answer is Actinobacillus actinomycetemcomitans, capnocytophaga Spp., Eikenella corrodens, campylobacter rectus, prevotella intermedia. These bacteria are commonly found in cases of localized aggressive periodontitis, which is a severe form of gum disease that primarily affects young individuals. These bacteria are known to be highly pathogenic and contribute to the progression of periodontal destruction. Identifying these bacteria is important for accurate diagnosis and appropriate treatment planning for patients with localized aggressive periodontitis.

    Rate this question:

  • 7. 

    The distance between the apical extent of the calculus and alveolar crest in human periodontal pockets is:

    • 1.97mm (=33.16%).

    • 0.2mm.

    • 3mm.

    • 4mm , 0.02mm.

    Correct Answer
    A. 1.97mm (=33.16%).
    Explanation
    The distance between the apical extent of the calculus and alveolar crest in human periodontal pockets is 1.97mm, which is equal to 33.16% of the total distance.

    Rate this question:

  • 8. 

    Vertical, infrabony defects are frequently seen on radiographs:

    • In patients with localised aggressive periodontitis, Adjacent to a tooth which has 'tipped' into an extraction space and Adjacent to an overhanging restoration

    • On teeth that serve as abutments to partial dentures

    • On teeth that serve as abutments for bridge retainers

    • On teeth that serve as abutments to partial dentures, On teeth that serve as abutments for bridge retainers

    Correct Answer
    A. In patients with localised aggressive periodontitis, Adjacent to a tooth which has 'tipped' into an extraction space and Adjacent to an overhanging restoration
    Explanation
    Vertical, infrabony defects are frequently seen on radiographs in patients with localized aggressive periodontitis, adjacent to a tooth which has 'tipped' into an extraction space, and adjacent to an overhanging restoration. This is because localized aggressive periodontitis is characterized by rapid and severe destruction of the periodontal tissues, leading to the formation of vertical defects. Additionally, when a tooth tips into an extraction space or there is an overhanging restoration, it can create a pocket or gap where bacteria can accumulate, leading to the development of infrabony defects.

    Rate this question:

  • 9. 

    Powered toothbrushes:

    • Are more effective in removing plaque than manual toothbrushes, Have brushheads that are designed specifically for patients with fixed orthodontic appliances and Have a 'novelty effect' associated with their use

    • Are generally cheaper than manual toothbrushes

    • Should be used with the Bass toothbrushing technique

    • Have a 'novelty effect' associated with their use and are generally cheaper than manual toothbrushes

    Correct Answer
    A. Are more effective in removing plaque than manual toothbrushes, Have brushheads that are designed specifically for patients with fixed orthodontic appliances and Have a 'novelty effect' associated with their use
    Explanation
    The correct answer is that powered toothbrushes are more effective in removing plaque than manual toothbrushes, have brushheads that are designed specifically for patients with fixed orthodontic appliances, and have a 'novelty effect' associated with their use.

    Rate this question:

  • 10. 

    Narrow < slit-like> areas of recession over the roots are called:

    • Clefts.

    • Festoons.

    • Craters.

    • Fenestrations.

    Correct Answer
    A. Clefts.
    Explanation
    Narrow, slit-like areas of recession over the roots are known as clefts. This term accurately describes the description given in the question, as clefts refer to narrow openings or gaps. The other options, such as festoons, craters, and fenestrations, do not accurately describe the specific characteristics mentioned in the question. Therefore, the correct answer is clefts.

    Rate this question:

  • 11. 

    Gingival Inflammation Involving the entire attached gingiva Is tarmodi :

    • Diffuse.

    • Papillary.

    • Marginal.

    • Generalized.

    • Severe.

    Correct Answer
    A. Diffuse.
    Explanation
    The correct answer is "diffuse" because the question describes gingival inflammation involving the entire attached gingiva. Diffuse refers to inflammation that is spread out or scattered throughout an area, which fits the description given in the question. This term indicates that the inflammation is not limited to a specific region or confined to certain areas, but rather affects the entire attached gingiva uniformly.

    Rate this question:

  • 12. 

    Gingival Inflammation involving the entire attached gingiva is termed :

    • Diffuse,

    • Papillary,

    • Marginal.

    • Generalized.

    Correct Answer
    A. Diffuse,
    Explanation
    Diffuse gingival inflammation refers to inflammation that affects the entire attached gingiva. This means that the inflammation is spread out and not limited to a specific area or region. It is a generalized condition that affects a larger area of the gums rather than being localized to a specific site. This term is used to describe the extent and distribution of the inflammation, indicating that it involves the entire attached gingiva.

    Rate this question:

  • 13. 

    The most objective and reliable indication of successful scalingand root planing is:

    • Lack of bleeding upon probing.

    • Reduction of pocket depth.

    • Root smoothness.

    • Absence of plaque.

    Correct Answer
    A. Lack of bleeding upon probing.
    Explanation
    The most objective and reliable indication of successful scaling and root planing is the lack of bleeding upon probing. This indicates that the gums are healthy and that there is no inflammation or infection present. Bleeding upon probing is a sign of gingivitis or periodontal disease, so the absence of bleeding indicates that the treatment has been effective in removing plaque and tartar and improving gum health. Reduction of pocket depth, root smoothness, and absence of plaque are also important factors in assessing the success of scaling and root planing, but the lack of bleeding upon probing is the most reliable indicator.

    Rate this question:

  • 14. 

    15The main route of entry of leukocytes into oral Cavity is through:

    • GCF

    • Saliva

    • Pharynx

    • Larynx

    Correct Answer
    A. GCF
    Explanation
    Leukocytes, also known as white blood cells, are an important part of the immune system and play a crucial role in defending the body against infections. The main route of entry for leukocytes into the oral cavity is through the gingival crevicular fluid (GCF). GCF is a fluid that is found in the gingival crevice, which is the space between the tooth and the gum. Leukocytes can migrate from the blood vessels into the GCF, allowing them to enter the oral cavity and combat any potential pathogens or foreign substances present in the mouth.

    Rate this question:

  • 15. 

    Vitamin C deficiency can effect:

    • Both of the above

    • Collagen formation

    • Osteoid formation

    • None of the above

    Correct Answer
    A. Both of the above
    Explanation
    Vitamin C deficiency can affect both collagen formation and osteoid formation. Collagen is a protein that provides structure to various tissues in the body, including skin, bones, and blood vessels. Osteoid is the organic matrix of bone tissue, which provides the framework for mineralization and bone strength. Without sufficient vitamin C, the body is unable to produce enough collagen and osteoid, leading to various health issues such as weakened bones, poor wound healing, and increased susceptibility to infections.

    Rate this question:

  • 16. 

    The area of periodontium more susceptible to tissue breadown is:

    • Interdental col

    • Free gingiva

    • Gingival sulcus

    • Interdental papill

    Correct Answer
    A. Interdental col
    Explanation
    The interdental col is the area between the teeth where the gums meet. It is a narrow space that is difficult to clean properly, making it more susceptible to the buildup of plaque and bacteria. This can lead to inflammation and tissue breakdown, ultimately leading to periodontal disease. The other options, such as the free gingiva, gingival sulcus, and interdental papilla, are also important areas in the periodontium, but they are not as prone to tissue breakdown as the interdental col.

    Rate this question:

  • 17. 

    Which of all the following come under PhageI therapy:

    • All of the

    • Excavation of caries

    • Chemical plaque control

    • Removal of calculus

    Correct Answer
    A. All of the
    Explanation
    The correct answer is "All of the above." PhageI therapy is a type of therapy that uses bacteriophages, which are viruses that can infect and kill bacteria. Excavation of caries, chemical plaque control, and removal of calculus are all methods used in dental care to prevent or treat bacterial infections in the mouth. Therefore, all of these methods can be considered as part of PhageI therapy.

    Rate this question:

  • 18. 

    Instrument used for detection of subgingival caculus:

    • Both of the above

    • Probe

    • Explorer

    • None of the above

    Correct Answer
    A. Both of the above
    Explanation
    The correct answer is "Both of the above." This means that both the probe and the explorer can be used for the detection of subgingival calculus. A probe is a dental instrument with a fine, pointed tip that is used to measure pocket depths and detect calculus deposits. An explorer is another dental instrument with a sharp, hooked tip that is used to detect roughness and irregularities on the tooth surface, including subgingival calculus. Therefore, both instruments are commonly used by dental professionals for the detection of subgingival calculus.

    Rate this question:

  • 19. 

    Furcation is best detected by which probe:

    • Naber’s probe

    • WHO probe

    • University of Michigan’O’ probe

    • Marquis color coded probe

    Correct Answer
    A. Naber’s probe
    Explanation
    Naber's probe is the best probe for detecting furcation. Furcation refers to the area where the roots of a tooth divide. Naber's probe is specifically designed with a curved tip that allows it to easily access and navigate the furcation area. This probe is commonly used in periodontal examinations to assess the severity and depth of furcation involvement, making it the most suitable probe for detecting furcation.

    Rate this question:

  • 20. 

    The biofilms found on tooth surface are termed as:?

    • Dental Plaque

    • Enamel

    • Dental Caries

    • Saliva

    Correct Answer
    A. Dental Plaque
    Explanation
    Dental plaque refers to the biofilms that form on the surface of teeth. It is a sticky, colorless film that contains bacteria and can lead to tooth decay and gum disease if not properly removed through regular brushing and flossing. Dental plaque is a common term used in dentistry to describe this phenomenon.

    Rate this question:

  • 21. 

    Which of the following is the method of transferring information in a biofilm ?

    • All are corrects

    • Quorum sensing

    • Conjugation

    • Plasmid transfer

    Correct Answer
    A. All are corrects
    Explanation
    All of the options mentioned (quorum sensing, conjugation, and plasmid transfer) are methods of transferring information in a biofilm. Quorum sensing is a process where bacteria communicate with each other using signaling molecules to coordinate their behavior. Conjugation is a mechanism where genetic material is transferred between bacterial cells through direct contact. Plasmid transfer involves the transfer of genetic material via plasmids, which are small, circular DNA molecules. Therefore, all of these methods are valid ways of transferring information within a biofilm.

    Rate this question:

  • 22. 

    Failure of Hertwig's epithelial root sheath to separate from the dentin surface during root development may give rise to which of the following anomalies?

    • Enamel pearls

    • Hypercementosis

    • Sessile cementicles

    • Sessile cementicles , Enamel pearls

    Correct Answer
    A. Enamel pearls
    Explanation
    Failure of Hertwig's epithelial root sheath to separate from the dentin surface during root development can lead to the formation of enamel pearls. Enamel pearls are small nodules of enamel that are found on the root surface of teeth. They can cause problems such as periodontal disease and root resorption.

    Rate this question:

  • 23. 

    Greater occlusal pressure on the periodontium produces:

    • Injury to fibroblasts and other connective tissue cells lead to necrosis of areas of the ligament.

    • Increased resorption of alveolar bone and formation of cementum.

    • A gradation of changes in periodontal ligament starting with tension of fibers which produce areas of fibrosis.

    • Disintegration of blood vessels within 30 minutes. and Disintegration of blood vessels within 05 minutes.

    Correct Answer
    A. Injury to fibroblasts and other connective tissue cells lead to necrosis of areas of the ligament.
    Explanation
    Greater occlusal pressure on the periodontium can lead to injury to fibroblasts and other connective tissue cells, resulting in the necrosis of areas of the ligament. This occurs due to the excessive force applied to the periodontal ligament, causing damage to the cells and tissues. This can ultimately lead to the breakdown and death of the ligament in certain areas.

    Rate this question:

  • 24. 

    Localized aggressive periodontitis is best treated in early stage by:

    • Tetracycline 250mg 4 times daily for fourteen days

    • Tetracycline 250mg once daily for 7 days.

    • Tetracycline 250mg twice daily for 7 days.

    • Tetracycline 250mg 4 times daily for 3 days. and Tetracycline 250mg 4 times daily for 5 days

    Correct Answer
    A. Tetracycline 250mg 4 times daily for fourteen days
    Explanation
    Localized aggressive periodontitis is a severe form of periodontal disease that primarily affects young individuals. It is characterized by rapid bone and tissue destruction around the teeth. The most effective treatment for this condition in the early stage is a high dose and long duration of antibiotics. Tetracycline, at a dosage of 250mg, taken four times daily for fourteen days, provides the best chance of controlling the infection and preventing further damage to the periodontal tissues.

    Rate this question:

  • 25. 

    Periodontal destruction is considered moderate when:

    • 3-4mm of clinical attachment loss has occurred in chronic periodontitis.

    • 1-2mm of clinical attachment loss has occurred in chronic peroidontitis.

    • 5mm or more of clinical attachment loss has occurred in chronic periodontitis.

    • 0-1mm of clinical attachment loss has occurred and 0.5-0.9mm of clinical attachment loss has occurred in chronic periodontitis.

    Correct Answer
    A. 3-4mm of clinical attachment loss has occurred in chronic periodontitis.
    Explanation
    In chronic periodontitis, periodontal destruction is considered moderate when 3-4mm of clinical attachment loss has occurred. This means that the attachment between the tooth and the surrounding tissues has been lost by 3-4mm, indicating a significant level of periodontal disease. This level of attachment loss is a clear indication of moderate periodontal destruction.

    Rate this question:

  • 26. 

    The amount of gingival crevicular fluid is:

    • Increased by tooth brushing and gingival massage.

    • Decreased when inflammation is present.

    • Increase by trauma from occlusion.

    • Decreased by mastication of coarse foods and smoking. and Decreased by ovulation and hormonal contraceptives.

    Correct Answer
    A. Increased by tooth brushing and gingival massage.
    Explanation
    Tooth brushing and gingival massage can stimulate the production of gingival crevicular fluid. This fluid is released from the gingival crevice, which is the space between the gum and the tooth. The mechanical action of tooth brushing and massage can increase blood flow to the gums, leading to an increase in fluid production. This fluid contains various substances, including inflammatory markers, antibodies, and enzymes, which can help in maintaining oral health.

    Rate this question:

  • 27. 

    Non eugenol periodontal dressing:

    • Is placed for one week

    • The retention is by chemically interlocking in the interdental areas.

    • Contact allergy to eugenol has been reported.

    • There is asbestos,Is placed for two weeks.

    Correct Answer
    A. Is placed for one week
    Explanation
    The correct answer is "Is placed for one week." This is because the non eugenol periodontal dressing is designed to be placed in the mouth for a duration of one week. It is used to provide support and protection to the surgical site during the initial healing phase after periodontal surgery. The retention of the dressing is achieved through chemical interlocking in the interdental areas. It is important to note that contact allergy to eugenol has been reported, which is why a non eugenol dressing is used instead.

    Rate this question:

  • 28. 

    Localised aggressive periodontitis:

    • Is typically characterised by actinomycetemcomitans infection, Commonly runs in families and Is associated with neutrophil defects

    • Is highly prevalent in adolescents

    • Can affect any teeth in the permanent dentition

    • Is highly prevalent in adolescents and Can affect any teeth in the permanent dentition

    Correct Answer
    A. Is typically characterised by actinomycetemcomitans infection, Commonly runs in families and Is associated with neutrophil defects
    Explanation
    Localised aggressive periodontitis is a form of periodontal disease that is typically characterized by an infection caused by the bacteria actinomycetemcomitans. It is commonly seen in families and is associated with defects in the neutrophil function. This condition is highly prevalent in adolescents and can affect any teeth in the permanent dentition.

    Rate this question:

  • 29. 

    Thoroughly dried supragingival calculus appears:

    • Chalklike.

    • Translucent.

    • No different from wet calculus dark brown to black.

    • Smooth and yellow.

    Correct Answer
    A. Chalklike.
    Explanation
    Thoroughly dried supragingival calculus appears chalklike because when calculus is completely dried, it becomes hard and brittle, resembling the texture and appearance of chalk. This is in contrast to wet calculus, which is typically dark brown to black in color and has a different texture. The term "translucent" does not accurately describe the appearance of dried supragingival calculus, and "smooth and yellow" is also not characteristic of this type of calculus.

    Rate this question:

  • 30. 

    Gingival inflammation involving the entire attached gingiva is termed:

    • Diffuse

    • Papillary.

    • Marginal.

    • Generalized.&severe.

    Correct Answer
    A. Diffuse
    Explanation
    Diffuse gingival inflammation refers to inflammation that affects the entire attached gingiva. This means that the inflammation is not limited to a specific area or confined to the margins of the gums. Instead, it is spread evenly across the entire attached gingiva. Therefore, the term "diffuse" accurately describes this type of gingival inflammation.

    Rate this question:

  • 31. 

    The results of the extraoral and intraoral examination should be recorded in the patient's chart whenever:

    • It is performed, regardless of findings.

    • Findings are normal.

    • Findings are abnormal.

    • A precancerous lesion is found.

    Correct Answer
    A. It is performed, regardless of findings.
    Explanation
    The results of the extraoral and intraoral examination should be recorded in the patient's chart whenever it is performed, regardless of findings. This is important because it allows for a comprehensive and accurate record of the patient's oral health. Even if the findings are normal or there are no abnormalities, it is still necessary to document that the examination was conducted. This ensures that there is a complete history of the patient's dental care and can be used for future reference or comparison.

    Rate this question:

  • 32. 

    Incorrect adaptation of the tip as shown above would result in:

    • Laceration of the tissue with the tip.

    • Gouging of the root surface.

    • Failure to detect calculus.

    • Altering the line angle of the tooth.

    Correct Answer
    A. Laceration of the tissue with the tip.
    Explanation
    Incorrect adaptation of the tip can result in laceration of the tissue with the tip. This means that if the tip is not properly positioned or angled, it can cause damage to the surrounding tissue, leading to lacerations or cuts. This can be a painful and potentially harmful consequence, as it can cause bleeding and increase the risk of infection. Therefore, it is important to ensure proper adaptation of the tip during dental procedures to prevent such complications.

    Rate this question:

  • 33. 

    The two types of wrist-forearm motion are:

    • Side-to-side and down-and-up.

    • Parallel and perpendicular.

    • Vertical and horizontal.

    • Intraoral and extraoral.

    Correct Answer
    A. Side-to-side and down-and-up.
    Explanation
    The correct answer is side-to-side and down-and-up. These are the two types of wrist-forearm motion. Side-to-side refers to the movement of the wrist and forearm from left to right or vice versa, while down-and-up refers to the movement of the wrist and forearm in a vertical direction, such as bending the wrist downward or upward.

    Rate this question:

  • 34. 

    Who described scaling of teeth with a sophisticated set of instruments in 10th century itself:

    • Abul-Qasim

    • Plato

    • Etruscans

    • Ibn Sina

    Correct Answer
    A. Abul-Qasim
    Explanation
    Abul-Qasim is the correct answer because he was a renowned Arab physician and surgeon who described the scaling of teeth with a sophisticated set of instruments in the 10th century. His work in dentistry was groundbreaking for his time and contributed to the advancement of dental practices. Plato, the Etruscans, and Ibn Sina were not specifically known for their contributions to dental practices, making Abul-Qasim the most likely candidate for the correct answer.

    Rate this question:

  • 35. 

    The attached gingiva is attached to:

    • C-Both of the above

    • A-Root

    • B-Periosteum

    • D-None of the above

    Correct Answer
    A. C-Both of the above
    Explanation
    The attached gingiva is the part of the gum that is firmly attached to both the root of the tooth and the underlying bone, known as the periosteum. Therefore, it is correct to say that the attached gingiva is attached to both the root and the periosteum, making option c-Both of the above the correct answer.

    Rate this question:

  • 36. 

    26After discontinuation of causative drug, the gingival enlargement undergoes spontaneous disappearance within few:

    • Months

    • Days

    • Weeks

    • Years

    Correct Answer
    A. Months
    Explanation
    After discontinuation of the causative drug, the gingival enlargement may take some time to disappear completely. This is because the body needs time to metabolize and eliminate the drug from the system, which can take several weeks to months. During this time, the gingival tissues gradually return to their normal size and appearance.

    Rate this question:

  • 37. 

    In drug-induced gingival enlargement ,hyperplasia occurs in:

    • Both of the above

    • Connective tissue

    • Epithelium

    • None of the above

    Correct Answer
    A. Both of the above
    Explanation
    In drug-induced gingival enlargement, hyperplasia occurs in both the connective tissue and the epithelium. This means that the excessive growth of cells and tissues can be observed in both layers of the gums. This condition is often caused by certain medications, such as anticonvulsants, immunosuppressants, and calcium channel blockers. The drugs can lead to an abnormal increase in the size of the gingiva, causing the gums to become swollen, red, and prone to bleeding. Both the connective tissue and the epithelium are affected in this process, leading to the enlargement of the gingival tissues.

    Rate this question:

  • 38. 

    Defensive delimiting connective tissue barrier reaction to gingival inflammation is reduced in deficiency of:

    • Vitamin C

    • Vitamin A

    • Vitamin B

    • Vitamin D

    Correct Answer
    A. Vitamin C
    Explanation
    Defensive delimiting connective tissue barrier reaction to gingival inflammation is reduced in deficiency of Vitamin C. Vitamin C is essential for the synthesis of collagen, a protein that helps in maintaining the integrity of connective tissues, including the gums. Inadequate levels of Vitamin C can lead to weakened connective tissue barriers, making the gums more susceptible to inflammation and infection.

    Rate this question:

  • 39. 

    Prevalence of gingivitis increased during:

    • All the above

    • Pregnancy

    • Puberty

    • Menstruation

    Correct Answer
    A. All the above
    Explanation
    During pregnancy, puberty, and menstruation, there are hormonal changes in the body that can lead to an increased prevalence of gingivitis. These hormonal changes can cause an increase in blood flow to the gums, making them more sensitive and prone to inflammation. Additionally, hormonal fluctuations can affect the body's immune response, making it more difficult to fight off bacteria in the mouth and leading to the development of gingivitis. Therefore, all of the mentioned factors can contribute to an increase in the prevalence of gingivitis.

    Rate this question:

  • 40. 

    Gingiva is supplied by:

    • All of the above

    • Supraperiosteal vessels

    • Vessels of periodontal ligament

    • Arterioles emerging from alveolar crest

    Correct Answer
    A. All of the above
    Explanation
    The correct answer is "All of the above." Gingiva is supplied by supraperiosteal vessels, vessels of the periodontal ligament, and arterioles emerging from the alveolar crest. This means that blood supply to the gingiva comes from multiple sources, ensuring that it receives an adequate oxygen and nutrient supply for its health and function.

    Rate this question:

  • 41. 

    Which of the following drugs has been shown to slow down the alveolar bone loss in periodontitis:

    • Ibuprofen

    • Nimesulide

    • Rofecoxib

    • Valecoxib

    Correct Answer
    A. Ibuprofen
    Explanation
    Ibuprofen has been shown to slow down the alveolar bone loss in periodontitis. This drug is a nonsteroidal anti-inflammatory drug (NSAID) that helps reduce inflammation and pain. In periodontitis, the inflammation and destruction of the alveolar bone around the teeth can lead to tooth loss. By reducing inflammation, ibuprofen can help slow down the progression of alveolar bone loss and preserve the supporting structures of the teeth.

    Rate this question:

  • 42. 

    Which of the following does not improve healing after periodontal treatment:

    • Oxygen insufflation

    • Pressure

    • Debridement

    • Immobilization

    Correct Answer
    A. Oxygen insufflation
    Explanation
    Oxygen insufflation does not improve healing after periodontal treatment. While oxygen is essential for wound healing, insufflation refers to the administration of oxygen under pressure, which can cause tissue damage and delay the healing process. Therefore, oxygen insufflation is not beneficial for healing after periodontal treatment.

    Rate this question:

  • 43. 

    If the probing pocket depth is 6mm and gingival recession is 2mm then the total clinical attachment loss is:

    • 8mm

    • 2mm

    • 6mm

    • 4mm

    Correct Answer
    A. 8mm
    Explanation
    The total clinical attachment loss is 8mm because it is the sum of the probing pocket depth (6mm) and the gingival recession (2mm). The probing pocket depth measures the depth of the space between the gum tissue and the tooth, while the gingival recession measures the amount of gum tissue that has pulled away from the tooth. Adding these two measurements together gives the total clinical attachment loss.

    Rate this question:

  • 44. 

    Metronidazole:

    • Is effective in the management of necrotizing ulcerative gingivitis

    • Penetrates stgnation areas well

    • Is mainly active against gram-positive aerobes

    • Is mainly concentrated in saliva

    Correct Answer
    A. Is effective in the management of necrotizing ulcerative gingivitis
    Explanation
    Metronidazole is effective in the management of necrotizing ulcerative gingivitis. This means that it is a suitable treatment option for this specific condition. The other statements provided in the question, such as its ability to penetrate stagnation areas well, its activity against gram-positive aerobes, and its concentration in saliva, are not relevant to the effectiveness of metronidazole in treating necrotizing ulcerative gingivitis.

    Rate this question:

  • 45. 

    If periodontal procedures have tobe carried out more than once, the minimum gap between two prophylactic antibiotic regimes in case of prophylaxis against SABE, should be:

    • 7days

    • 2days

    • 20days

    • 42days

    Correct Answer
    A. 7days
    Explanation
    The minimum gap between two prophylactic antibiotic regimes in case of prophylaxis against SABE should be 7 days. This is because the antibiotics need to be taken regularly to prevent the infection, and waiting any longer than 7 days may allow the infection to start developing again. Taking the antibiotics too frequently, such as every 2 days, may lead to antibiotic resistance and other complications. Therefore, a 7-day gap is the recommended timeframe to ensure the effectiveness of the prophylactic antibiotic regime.

    Rate this question:

  • 46. 

    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:?

    • Chronic gingivitis

    • Gingival recession

    • Systemic diseases

    • Advanced priodontal diseases

    Correct Answer
    A. Chronic gingivitis
    Explanation
    The given symptoms of loss of interdental and marginal stippling, blue-red tissue color, and bleeding upon gentle probing are indicative of chronic gingivitis. Chronic gingivitis is a common gum disease characterized by inflammation of the gums caused by the buildup of plaque and tartar. It can lead to gum recession, bleeding, and changes in gum color. The other options, such as gingival recession, systemic diseases, and advanced periodontal diseases, do not fully align with the given symptoms and are less likely to be the correct diagnosis.

    Rate this question:

  • 47. 

    Bacteria in plaque are held together by:?

    • All are corrects

    • Hydrophobic forces

    • Covalent forces

    • Vander waal's forces

    Correct Answer
    A. All are corrects
    Explanation
    The bacteria in plaque are held together by various forces, including hydrophobic forces, covalent forces, and Vander Waal's forces. These forces contribute to the formation and stability of the plaque biofilm, allowing the bacteria to adhere to each other and to surfaces such as teeth.

    Rate this question:

  • 48. 

    Porphyromonas gingivdis:?

    • Has the ability to invade gingival soft tissues, Is generally encapsulated

    • Is one of the first bacterial species to colonise a newly cleaned tooth surface

    • Is a causative organism for localised aggressive periodontitis

    • Is an obligate aerobe

    Correct Answer
    A. Has the ability to invade gingival soft tissues, Is generally encapsulated
    Explanation
    Porphyromonas gingivalis has the ability to invade gingival soft tissues, meaning it can penetrate and infect the gum tissues. It is also generally encapsulated, which means it is surrounded by a protective capsule. This capsule helps the bacteria evade the immune system and establish a persistent infection. These characteristics make Porphyromonas gingivalis a significant pathogen in periodontal disease, as it can cause inflammation and destruction of the gum tissues.

    Rate this question:

  • 49. 

    In CPITN:

    • For appropriate treatment plan code 3 require supra and subgingival scaling and improvement in home care.

    • The dentition is divided into five segments. and Pocketing of 4-5 mm, that is, when the gingival margin is on the clear area is code no. 3.

    • Pocketing of 6mm or more, that is when the gingival margin is on the black area of the probe is code no. 4.

    • For appropriate treatment plan code 2 requires improvement in home care.

    Correct Answer
    A. For appropriate treatment plan code 3 require supra and subgingival scaling and improvement in home care.
    Explanation
    The answer is explaining that for a treatment plan with code 3, it is necessary to perform supra and subgingival scaling, as well as improve home care. This means that the patient has pocketing of 4-5 mm, where the gingival margin is on the clear area of the probe. Code 3 indicates the severity of periodontal disease and the necessary treatment measures to address it, including professional scaling and improved oral hygiene practices at home.

    Rate this question:

Quiz Review Timeline (Updated): Jul 12, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jul 12, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 05, 2019
    Quiz Created by
    Uhsdental
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.