Description : What does the fixing solution in developing X rays do: A. Removes unexposed silver halide crystals B. Removes exposed silver halide C. Fixes the developed film
Last Answer : A. Removes unexposed silver halide crystals
Description : On X-ray, the buccal roots of 16 is considerably elongated; this is a result of, A. Too great vertical angulation B. Inadequate vertical angulation C. Excessive object film distance
Last Answer : B. Inadequate vertical angulation
Description : The developing time for dental x ray should be: A. 5 minutes at 20ºC B. At least 10 minutes C. Until it clears up D. 2 minutes at 40ºC
Last Answer : A. 5 minutes at 20ºC
Description : A raised dot on X ray films is to: A. Orient exposure side B. Differentiate between left and right side C. Dip during developing
Last Answer : A. Orient exposure side
Description : Density of film is decreased by increasing the : A. MA B. Exposure time C. Developing time D. Rinsing time
Last Answer : B. Exposure time
Description : A 8 years-old patient has 3 first premolars erupted and a swelling on the ridge of the un-erupted premolar. X ray shows a fully developed crown and ¾ roots development with no ... recision to allow eruption C. Soft tissues recision accompanied with orthodontic appliance to help with eruption
Last Answer : C. Soft tissues recision accompanied with orthodontic appliance to help with eruption
Description : Choose a statement that correctly defines the term AMALGAM: A. Amalgam is a metallic powder composed of silver, tin, copper and zinc B. Amalgam is an alloy of two or more metals that have been dissolved in ... is mixed with mercury E. Amalgam is an alloy of two or more metals, one of them is tin
Last Answer : C. Amalgam is an alloy of two or more metals, one of them is mercury
Description : .In an X ray the mesio buccal root of upper first molars is elongated because of: A. Mesio angular horizontal B. Too big vertical angulation C. Too small vertical angulation D. High angulation
Last Answer : C. Too small vertical angulation
Description : A patient with impacted canine; by moving the X ray tube distally the canine moves distally too; where do you expect the impacted canine: A. Labially impacted B. Palatally impacted ... -five per cent of impacted maxillary permanent cuspids are palatal impactions, and 15% are labial impactions.
Last Answer : B. Palatally impacted Eighty-five per cent of impacted maxillary permanent cuspids are palatal impactions, and 15% are labial impactions.
Description : A window pane is fogged up, how much is it going to cost to fix it?
Last Answer : answer:Is it a double pane nitrogen or argon filled window? How big is it? Can you see a pin hole in the outer pane? the cost can vary a lot. If it is a single pane normal sized ... basement window while mowing. One by one I replaced them with high strength plexiglass and have had no breaks since.
Description : Saturated steam at a pressure of 25 kg/cm2is throttled to attain 5 kg/cm2. Then the outcoming steam will be (A) Wet (B) Saturated (C) Superheated (D) None of these
Last Answer : C) Superheated
Description : Would the cost be lower if instead of having old film negatives developed by a pro developer you set-up your own developing room instead?
Last Answer : Better yet, get a scanner that will electronically develop the negatives. I got one for less than $200, There are some out there that are even cheaper than that. That’s my next project, scanning hundreds and hundreds of negatives going back to the late 70s.
Description : Why in Newton’s rings the center spot is always dark? A. The thickness of the film is zero at center B. The path difference between incident ray and reflected ray is ½wavelength C. The incident ray and reflected ray undergo destructive interference D. All of above
Last Answer : D. All of above
Description : A filter is used in x ray machines to: A. Reduce exposure time B. Remove low energy x rays
Last Answer : B. Remove low energy x rays
Description : You wish to purchase a dental X ray machine and have the choice between 60kVp and 70kVp machines. With single change from 60kVp to 70kVp what would the approximate affects on exposure time?CHECK A. No effect B. Half the time C. Double D. Quarter E. Triple the time
Last Answer : B. Half the time
Description : The best method to take X-ray of the maxillary sinus is, A. Periapical radiograph B. Panoramic view C. Lateral cephaloghraph D. Occipitomental view E. Reverse Towne’s view
Last Answer : D. Occipitomental view
Description : After obturation and on X-ray you notice the obturation materials are 1mm beyond apex. What is your first management? A. Refill the canal B. Pull the GP cone about 1mm out and take a new X-ray C. Leave it as it
Last Answer : B. Pull the GP cone about 1mm out and take a new X-ray
Description : The beam that leaves the target is called, A. The primary X-ray B. The electrons ( from the cathode) C. The secondary rays (scattered radiation) D. X-ray photons no
Last Answer : A. The primary X-ray
Description : On an X ray you find the cement of the previous root canal treatment is extending 1mm beyond the apex without any symptoms; what would you do: A. Remove restoration material and retreat B. Apiectomy C. Leave as is until any complications occur
Last Answer : C. Leave as is until any complications occur
Description : On an X ray you find the Gutta Percha cone extending 1mm beyond the apex without any symptoms, what would you do: A. Remove restoration material until you are able to withdraw the Gutta Percha cone B. Apiectomy C. Leave as is until any complications occur
Description : The length of the tooth is established by: A. Good undistorted pre-operative x ray B. Adequate coronal access to all canals C. Adjustable endo millimetre ruler D. Definite repeatable plane of reference to anatomical landmark on tooth E. All of the above
Last Answer : A. Good undistorted pre-operative x ray
Description : Full mouth x ray survey at birth reveals: A. Ten teeth are present B. Twenty teeth are present C. Twenty four teeth are present
Last Answer : C. Twenty four teeth are present
Description : 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
Last Answer : B. Incisive foramen
Description : You notice a radiolucent area close to the apex of the central incisor, on a second x ray the radiolucent area moves; it is likely to be: A. Cyst B. Abscess C. Granuloma D. Incisive foramen in sup lingual for amen inf
Last Answer : D. Incisive foramen in sup lingual for amen inf
Description : The best radiograph for maxillary sinus is: A. PA skull x ray B. Occipitomental radiograph o waters view C. Town’s view
Last Answer : B. Occipitomental radiograph o waters view
Description : Collimation is done to: A. Reduce the size of the beam, so it is easy to visualise the central X ray. B. Avoid unnecessary exposure to radiation of surrounding tissues of the patient
Last Answer : B. Avoid unnecessary exposure to radiation of surrounding tissues of the patient
Description : Periapical abscess is differentiated from periodontal abscess by: A. Pulpal radiology B. History and vitality test C. X-ray and history
Last Answer : B. History and vitality test
Description : .Which of the following is true: A. Antibiotics are useful in the treatment of periodontitis B. Trauma from occlusion causes thickening of the marginal gingivae C. Periodontitis is the ... can be identified by x-ray E. Periodontitis is the most common disease in the oral cavity
Last Answer : E. Periodontitis is the most common disease in the oral cavity
Description : On examination of an 8 years-old child you find 75 with carious exposure. On X-ray you find 35 missing. Your treatment is: A. Extraction of 75 allowing 36 to move mesially B. ... of 75 and place a fixed space retainer to be replaced with fixed bridge. D. Extraction of 65 and 75
Last Answer : B. Pulpotomy on 75 and wait indefinitely
Description : An upper deciduous molar has a caries exposure and on X ray the corresponding 2nd permanent premolar is absent. What treatment would you do to the deciduous tooth: A. Pulpotomy B. Endodontic treatment C. Pulp capping
Last Answer : B. Endodontic treatment
Description : How can a periodontal pocket be recognised:** A. X-Ray B. Periodontal probe / Calibrated probe C. Periodontal marker D. Bitewing radiograph E. Sharp explorer F. Study cast
Last Answer : B. Periodontal probe / Calibrated probe
Description : Which of the following statement is correct for a periodontal disease:** A. The finger pressure is enough for mobility diagnosis B. A communicable disease C. X ray after intra alveolar surgery ... diagnosis healing D. Systemic diseases have no effects on it E. ZoE paste will accelerate healing
Last Answer : E. ZoE paste will accelerate healing
Description : 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
Last Answer : A. Pain on percussion
Description : What is the first thing to consider when you get a patient with intruded 11 and 12: A. Replace intruded teeth in position B. Advice patient about consequences C. Leave it and observe D. X-ray
Last Answer : D. X-ray
Description : When no radiation shield is available, the operator should stand out of the primary x ray beam and a distance from the patient’s head of at LEAST: A. 0.5 metres B. 1 metre C. 1.5 metres D. 2 metres E. 3 metres
Last Answer : Option C
Description : X-ray films have an emulsion on one or both sides of a support material. The emulsion contains particles of, A. Silver nitrate crystal B. Metallic silver in gelatine C. Silver bromide in gelatine D. Silver nitrate in gelatine E. Potassium bromide in gelatine
Last Answer : C. Silver bromide in gelatine
Description : The MOST likely factor contributing to tooth eruption is:** A. The growing root B. Bone growth C. Vascular pressure D. The developing periodontal ligament
Last Answer : A. The growing root
Description : A primary molar has relatively un-resorbed roots encompassing the permanent tooth bud. What extraction technique would you use to avoid the inadvertent removal of a developing bicuspid
Last Answer : Section the tooth vertically and remove each root separately
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
Description : A lateral incisor labial to the arch needs to be restored in normal alignment with PFM retraction. How will the tooth appear: A. Too wide B. Too short C. To narrow D. To long
Last Answer : C. To narrow
Description : A partial denture that seats on the master cast but fails to seat correctly in the mouth is a result of, A. Contraction of the metal framework during casting B. Insufficient expansion of the investment material C. Distortion of impression D. Failure to block out unwanted undercuts
Last Answer : C. Distortion of impression
Description : An incision biopsy of an ulcerated and intruded clinically suspicious lesion in a 50 years-old female reveals chronic inflammation; you would:** A. Inform the patient and her physician of ... . Dismiss the patient with instructions for warm saline rinses and re-examination D. Repeat the biopsy
Last Answer : D. Repeat the biopsy
Description : 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
Last Answer : A. Entrapped Bacteria, or the presence of bacteria in the periapical region.
Description : On examination of a composite restoration you find a dark attain: A. Replace the composite B. Repair with unfilled resin C. Apply topical fluoride at the margin
Last Answer : A. Replace the composite
Description : A 45 years-old patient awoke with swollen face, puffiness around the eyes, and oedema of the upper lip with redness and dryness. When he went to bed he had no swelling, pain or ... B. Angioneurotic oedema C. Infectious mononucleosis D. Acute maxillary sinusitis E. Acute apical periodontitis
Last Answer : B. Angioneurotic oedema
Description : What is mixed cerebral palsy?
Last Answer : Many (possibly most) children with cerebral palsy have multiple symptoms with combinations of the various forms of cerebral palsy. For example, children with spastic cerebral palsy often continue ... cerebral palsy often have increased deep tendon reflexes, which are suggestive of some spasticity.
Description : A 10 years-old child presents with crowding of the dentition and desires correction. What would your next step be: a. Perform mixed dentition analysis. b. Extract the deciduous teeth. c. Ask ... permanent dentition erupts. d. Apply a fixed appliance. e. Review in yearly intervals.
Last Answer : a. Perform mixed dentition analysis.
Description : A 10 years-old child presents with crowding of the dentition and desires correction. What would your next step be: A. Perform mixed dentition analysis B. Extract the deciduous teeth C. Ask ... off and complete permanent dentition erupts D. Apply a fixed appliances E. Review in yearly intervals
Last Answer : A. Perform mixed dentition analysis
Description : A patient states that for ALMOST a year now she has had a rubbery, firm, painless nodule within the substance of parotid gland. This MOST likely is: A. Mucocele B. Lymph node C. Benign mixed tumour D. Squamous cell carcinoma E. Sialolith with encapsulations
Last Answer : C. Benign mixed tumour
Description : Loss of tooth in mixed dentition affects ******** A. Same quadrant B. The relevant jaw C. The whole mouth
Last Answer : C. The whole mouth