Displaying items 1 to 25 of 46
Q: Which instrument is NOT a critical item?
(A). Curettes (B). Surgicalburs (C). Scalpels (D). Mouth mirrors This question belongs to the chapter on Infection Control at(for the NBDHE, NDHCE). Critical itemsare items considered to be athighrisk for infections. Theypenetratethe soft tissue, bone, or contact the blood stream....Read More
Q: Which condition is NOT caused by a virus?
(A). Hand-foot-mouth disease (B). Herpes labialis (C). Infectious mononucleosis (D). Candidiasis Candidiasisis caused by thefungusCandida albicans. Herpeslabialis is caused by a group ofvirusescalled human herpes viruses. Hand foot mouth diseaseis caused by the...Read More
Q: Which of the following is a facial bone?
(A). Occipital (B). Parietal (C). Sphenoid (D). Zygomatic (E). Frontal There are 22 bones in the skull (8 cranial bones and 14 facial bones), excluding the middle ear ossicles. 8cranialbones: occipital bone 2 temporal bones 2 parietal bones sphenoid bone ethmoid...Read More
Q: When is a package considered to be contaminated?
(A). When it is dropped on the floor (B). When it is punctured (C). When it is wet (D). All of the above Before opening a dental instrument package, examine it carefully chair side. Packages that are dropped on the floor, punctured,torn,or wet are considered contaminated. In those events,...Read More
Q: Which radiographic error caused this “flat” smile?
(A). Lead collar is above the line (B). The chin is tipped down too far (C). The chin is tipped up too far (D). The patient’s head is twisted Thewill show you panoramic radiographs and ask you what type of error was made. There is a whole list of errors that you need to memorize! As...Read More
Q: What is the active ingredient of doxycycline?
(A). Arestin (B). Periochip (C). Atridox All the agents mentioned above are the most commonly-usedlocally-appliedantimicrobial agents. They are used only after periodontal therapies have shown unsuccessful results (studies suggest that adjunct therapy alone does not improve periodontal...Read More
Q: What is Borax?
(A). Retarder (B). Accelerator (C). None of the above Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate. It can be used as a fertilizer, chalk, or stone for the fabrication of models in dentistry. Borax and potassium sulfate can be added to the gypsum tomodify the...Read More
Q: Which disease is related to severe protein deficiency and is characterized by edema?
(A). Kwashiorkor (B). Phenylketonuria (C). Marasmus (D). Addison’s disease Keywords: edema, protein deficiency The definitions for the answer choices are as follows: Kwashiorkor: severe protein deficiency; begins aroundage 2. Symptoms include apathy, failure to grow and gain...Read More
Q: Using radiation measuring system conversion, 1 Gray is equal to how many rad?
(A). 100 (B). 300 (C). 1000 (D). 1,000,000 When measuring radiation, there are two types of systems used –Standard(traditional system) andSystem International(SI, newer system). Roentgen (Standard system), Coulomb (C/kg) (SI system): measure the exposure (quantityof ionization...Read More
Q: This unusual incisor shape is most likely caused by:
(A). Syphilis (B). Attrition (C). Erosion (D). Fluorosis The maxillary central incisors in this image feature an unusual indentation which is characteristic ofcongenital syphilis. Those malformed incisors are called “screwdriver-shaped” incisors. Besides abnormal incisors,...Read More
Q: This type of swelling is a(n):
(A). Ranula (B). Mucocele (C). Exostosis (D). Ulcer The image shows a rounded elevation that looks like it may contain some fluid and is located on thelower lip. Amucoceleis a benign, mucus-containing cystic lesion of theminorsalivary gland. It can appear with any minor salivary...Read More
Q: The recommended amoxicillin premedication dose for an adult patient is:
(A). 300 mg (B). 500 mg (C). 600 mg (D). 2 g Keyword: adult 2 g ofamoxicillin1 hour prior to the dental appointment is the recommended premedication dose for anadultpatient. Other drugs and doses for premedication are as follows: 600 mg clindamycin 500 mg azithromycin 500...Read More
Q: The receptor size usually required for a full-mouth series on a six-year-old patient is:
(A). Size 1 (B). Size 0 (C). Size 3 (D). Size 4 Keywords: six-year-old Size 0 is the smallest receptor and is used for children Size 1 is larger than size 0 and is used for children’s dentition and adult anterior teeth Size 2 is larger than size 1 and is used on...Read More
Q: The radiolucency in the image is:
(A). Oral ulcer (B). Mandibular foramen (C). Mental foramen (D). Incisive foramen In order to solve this, we have to examine thelocationof the radiolucency. In this image, it isbelow the second premolarbut detached from the root. Because it isdetachedfrom the roots, we already know that it...Read More
Q: The patient in the photo has:
(A). Geographic tongue (B). Oral candidiasis (C). Median rhomboid glossitis (D). Smooth tongue Geographic tongue and median rhomboid glossitis… For some reason, the two get mixed up in our head sometimes. Let’s review them a little more closely today and perfect our knowledge...Read More
Q: What is the largest cranial nerve?
(A). First (B). Seventh (C). Sixth (D). Fifth There are 12 cranial nerves: olfactory (I), optic (II), oculomotor (III), trochlear (IV), trigeminal (V), abducens (VI), facial (VII), vestibulocochlear (VIII), glossopharyngeal (IX), vagus (X), accessory (XI), and hypoglossal (XII). Among all of...Read More
Q: The image highlights which type of caries?
(A). Recurrent caries (B). Class Icaries (C). Class Vcaries (D). Class IVcaries The magnifier points at a dark area “under” the restoration. Thosecariesthat come back after the tooth has been treated with restorations are calledrecurrentcaries. This is not uncommon, and...Read More
Q: The following drugs cause pupil dilation EXCEPT:
(A). Meth (B). Cocaine (C). LSD (D). Morphine Keyword: dilation The pupil is constricted or dilated by the smooth muscle in theiris. Increased release of acetylcholine by theparasympatheticnervous system (rest and digest reaction) causescontractionof thecircularsmooth muscle. This makes...Read More
Q: The critical pH for enamel demineralization is:
(A). pH 4.5-5.5 (B). pH 5.5-6 (C). pH 6-6.7 (D). pH 7+ Keyword: enamel First of all, what ispH? pH is the symbol ofhydrogen ion concentrationexpressed in numbers, corresponding to the acidity or alkalinity of an aqueous solution. The range is from 0 (pure acid) to 14 (pure base)....Read More
Q: The cervical area has ____ vertebrae.
(A). 5 (B). 7 (C). 9 (D). 12 Keyword: cervical There are 7 cervical vertebrae. There are 12 thoracic vertebrae. There are 5 lumbar vertebrae. There are 4-5 modular pieces in the coccygeal that are fused. In adults, this segment may be fused with the sacrum. Answer:...Read More
Q: The arrows are pointing at:
(A). Fusion (B). Concrescence (C). Gemination (D). Dens indente Dens indente(also calleddensinvaginatus)isformed as the enamel organ goes into the crown of a tooth before mineralization is completed. Radiographically, a tooth-like structure appears within the crown. Due to the...Read More
Q: Probe depth is 7 mm, recession is 2 mm. What is the CAL?
(A). 2 mm (B). 5 mm (C). 7 mm (D). 9 mm Keyword: recession Clinical attachment level (or loss, CAL) is a more accurate indicator of the periodontal support around a tooth than probing depth alone. CAL is measured from a fixed point on the tooth that does not change, the CEJ. To calculate...Read More
Q: Patients with artificial joints require premedication before dental treatments for:
(A). The first 6 months (B). The first 2 months (C). The first 2 years (D). Premedication is not indicated This is probably one of the most commonly asked questions by students at. At school, you may have been taught the “2 years, or for life” rule. Buttossthat! The newest...Read More
Q: How can you control a hematoma?
(A). Apply heat for 20 minutes (B). Apply ice for 2 minutes (C). Alternate ice and heat (D). All the above First of all, what is ahematoma? A hematoma is theoutflow of bloodinto extravascular spaces. In dentistry, a hematoma can occur when the needle damages the blood vessels during an...Read More
Q: Dentin formed in response to injury is called:
(A). Primary dentin (B). Secondary dentin (C). Tertiary dentin Keyword: injury Dentin comprises themainportion of the tooth. It is softer than enamel but harder than bone.There are different types of dentin: The dentin that forms when a tooth erupts is calledprimarydentin. The...Read More
Displaying items 1 to 25 of 46

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