Which micro-organisms in periapical lesion would you find microscopically: A. Aerobes B. Aerobes to mainly anaerobes

Which micro-organisms in periapical lesion would you find microscopically:
A. Aerobes
B. Aerobes to mainly anaerobes
by

1 Answer

Answer :

B. Aerobes to mainly anaerobes
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How long would it take to notice significant reduction in radiolucency after finishing a root filling in a tooth with a periapical lesion: A. 6 months B. 1 month C. 3 months

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X rays are used in endodontic treatment to: A. Aid in the diagnosis of periapical hard tissue lesion B. Determine the number, location, shape, size and direction of roots and root canals C. Confirm the length of root canals D. Evaluate the adequacy of the complete root canal filling E. All of the above

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Last Answer : E. All of the above

The concomitant perio-periapical lesion as the cause of endodontic failure: A. Cannot be discovered prior to endo treatment B. May be discovered prior to endo treatment C. Is most commonly found in maxillary teeth D. Is most commonly found in mandibular teeth E. None of the above

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Last Answer : B. May be discovered prior to endo treatment

Swelling after RCT is mainly caused by (Being asked as: What is the most frequent cause of pain which occurs several days after obturation?, too): A. Entrapped Bacteria, or the presence of bacteria in the periapical region. B. Underfilling the root canal system C. Overfilled root canal

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Last Answer : A. Entrapped Bacteria, or the presence of bacteria in the periapical region.

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In regard to periapical lesions, what is TRUE: A. Are predominantly anaerobic B. Must be treated by antibiotics C. Must always treated by surgery

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Last Answer : A. Are predominantly anaerobic

An endodontic therapy was completed on a tooth with a periapical radiolucency. Marked reduction in size of radiolucency is expected in approximately: A. One year B. 6 months C. 3 months

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Last Answer : A. Where performing an endodontic treatment on existing root canal filling may lead to fracture of the root

A periapical x ray of 11 and 12 region shows the vimen, floor of the nasal fossa and the median palatine suture. The other feature that can be seen is: A. Maxillary sinus B. Incisive foramen C. Zygomatic process D. Wall of maxillary sinus

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The lamina dura is absent in which condition: A. Von Recklinghausen B. Paget’s C. Periapical granuloma

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After completing pulp extirpation, debridement and placing a dressing; apical periodontitis is because: A. Over instrumentation extending into periapical area B. Irritation from chemicals used C. Entrapped bacteria D. One or any combination of the above

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Last Answer : D. One or any combination of the above

Which of the following is true in regard to periapical cementoma: A. Teeth are vital. B. Teeth are not vital

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.Which radiographic method would you use in assessing periodontal conditions and lesions: A. Bitewing B. Periapical C. Occlusal D. Panoramic

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The prognosis of teeth with apical resorption is : A. Poor B. Good if apex can be sealed C. Dependant upon periapical surgery D. Contingent upon systemic antibiotic therapy combined with treatment of the canal

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Last Answer : B. Good if apex can be sealed

How would you diagnose a periapical abscess: A. Pain on percussion B. Pain when eating hot food C. Pain when eating cold food D. The thickness of periodontal ligament on X-Ray

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The lamina dura is seen on periapical radiographs as:CHECK A. Usual radiolucency between tooth root and surrounding bone as a thin white line. B. Cribriform plate of bone making the tooth socket C. Dense crestal bone consistent with a healthy periodontal status D. Pattern of radiopaque lines in supporting alveolar bone

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Last Answer : B. Cribriform plate of bone making the tooth socket

A 9 years-old boy has a small white discolouration on his maxillary central incisor. The lesion is most probably, A. Hypocalcification due to trauma of the primary predecessor B. Hypoplasia due to acute systemic infection when 6-12 months old C. Defect during the histo differentiation stage of development D. Defect during the morho differentiation stage of development

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Last Answer : A. Hypocalcification due to trauma of the primary predecessor

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A patient shows a lesion on the tongue adjacent to sharp tooth. You “round off” the sharp area and recall patient after one month to see the lesion turning smaller in size. What would be your next step: A. Keep observing B. Perform an excision biopsy C. Prescribe Kenalog and Orabase

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A patient complains of finger-like growth on the lateral aspect of the tongue. The lesion is painless and of normal colour. The MOST PROBABLE diagnosis is: A. Folate papillae B. Filiform papillae C. Neurofibroma D. Papilloma

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Last Answer : D. Repeat the biopsy

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In radiographs, an incipient carious lesion limited to the end of the proximal surface of a posterior tooth appears as: A. Radiopaque area B. Triangle with apex towards the tooth surface C. Larger in radiographs than actual lesion D. All of the above E. None of the above

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Last Answer : B. Triangle with apex towards the tooth surface

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Last Answer : A. Fordyce’s granules

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Last Answer : D. Surgical curettage

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Last Answer : B. Complete excision if it affects small area; if it is large lesion, limited excision surgery because of the cosmetic considerations.

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Last Answer : A. Herpangina

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Last Answer : A. Where any further excavation of dentine would result in pulp exposure.

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Last Answer : (a) Both (A) and (B) are correct.

(4) Water drops in a dispersion medium of air Explanation: A colloid is a substance microscopically dispersed evenly throughout another substance. A colloidal system consists of two separate phases: a dispersed phase (or internal phase) and a continuous phase (or dispersion medium) in which the colloid is dispersed. A colloidal system may be solid, liquid, or gas. Cloud is a colloidal dispersion of Water drops in a dispersion medium of air.

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