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Claire J
Claire J

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Which instrument type and cross-sectional shape are matched correctly?
(A). Explorer - half moon(B).Universal curette - circle(C).Sickle - triangle(D).Area-specific curette - rectangleThe design of the working end and its cross-sectional shape are directly related to the function of the instrument. Half-moon cross-sectional shape instrument: rounded at the back....  Read More
Which cell component synthesizes lysosomes?
(A). Cell membrane(B). Golgi complex(C). Cytoplasm(D). Endoplasmic reticulumEukaryotes or normal cells are composed the following: Golgi complex: stack of sacs that packages and distributes proteins out of the cell. The complex also synthesizes lysosomal cells, which break down the foreign...  Read More
According to Moh’s scale of hardness, fluoride is harder than quartz. True or false?
(A). True (B). FalseMoh’s scale of hardness compares minerals and their relative ability to scratch another mineral. From hardest to softest: Diamond Corundum Topaz Quartz Orthoclase Apatite Fluorite Calcite Gypsum Talc Therefore, fluoride is softer than...  Read More
Which injection anesthetizes the palatal tissues around the left maxillary molar?
(A). Nasopalatine nerve block(B). Greater palatine nerve block(C). Posterior superior alveolar nerve block(D). Buccal nerve blockKey word: palatal tissues Greater palatine nerve (GP) block: anesthetizes the hard palate (palatal soft tissues and bone of the premolars/molars) and some part of the...  Read More
Which foramen is the opening for the mandibular division of the trigeminal nerve?
(A). Foramen rotundum(B). Foramen ovale(C). Foramen spinosum(D). Foramen magnumThe definitions of the four different foramen are as follows: Foramen rotundum: located in the middle cranial fossa, at the base of the greater wing of the sphenoid bone. Serves as the opening for the maxillary nerve...  Read More
Xerostomia may be produced by any of the following EXCEPT:
(A). Use of vitamin supplements (B). Sjögren syndrome(C). Anti-hypertensive medication(D). Radiation therapyXerostomia, or dryness of the mouth, can result because of many different factors: Side effect of medications such as anti-hypertensive drugs (especially diuretics), anti-anxiety...  Read More
Which preservative is used in dental cartridges?
(A). Sodium bisulfite(B). Sodium chloride(C). Sodium bisulfate(D). MethylparabenSodium bisulfite (with an ”i”) is the antioxidant for vasoconstrictors. Some patients can be allergic to this substance, and a plain solution should be used if sulfite allergy is a concern. This chemical is...  Read More
According to the G.V. Black classification, a class III lesion is on:
(A). The cusp tip of a molar(B). The lingual surface of a molar(C). The occlusal surface of a premolar(D). The mesial surface of an incisorThe following is the G.V. Black classification of carious lesions for dental charting: Class I: occlusal surfaces of molars and premolars, facial and lingual...  Read More
Which tooth is the longest?
(A).Maxillary lateral incisor(B).Maxillary central incisor(C).Maxillary canine(D).Maxillary first molarKey word: longestMaxillary canines are the longest teeth (combined length of the root and crown) in the dentition and they support the facial dimension.The mandibular 1st molar on the other hand...  Read More

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