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Q: 80, 85, 67, 90, 86, 87, 85, 90, 83, 75, 89, 82, 82, 88, and 85. What is the mode?
(A). 75(B). 80(C). 85(D). 90 Themodeis the value that ismostfrequently observed. In this case, 85 is observed 3 times. Themedianis the number that separates the data intotwo halves. (If there are two middle numbers, get their average). In this case, the median is also 85. Themeanis...  Read More
Q: 10 grams of fat produces:
(A). 4 kcal(B). 7 kcal(C). 9 kcal(D). 90 kcalKeywords: fat, 10 g Proteins and carbohydrates produce 4 kcal/g of energy Fat produces 9 kcal/g of energy Alcohol produces 7 kcal/g of energy Vitamins and minerals do not provide energyAnswer: (D). 90 kcalWas (C). 9 kcal tempting to choose?...  Read More
The arrows are pointing at:
(A). Fusion(B). Concrescence(C). Germination(D). Dens in dente Dens in dente(also calleddens invaginatus) is formed 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 irregularities...  Read More
What happens with depolarization of a nerve?
Local Anesthesia | For the WREB, CDCA Dental Hygiene Board ExamQ: What happens with depolarization of a nerve?(A). Sodium ions exit the nerve membrane(B). Sodium ions enter the nerve membrane(C). Both sodium ions and potassium ions enter the nerve membrane(D). Both sodium ions and potassium ions...  Read More
Which of the following routes CANNOT spread HIV?
(A). Blood(B). Breast milk(C). Vaginal fluids(D). Saliva HIV (human immunodeficiency virus) invades T lymphocyte cells in the body.The virus can be transmitted only by certain bodily fluids such as blood, semen, rectal fluids, vaginal fluids, and breast milk.The virus must come in contact with a...  Read More
The piezoelectric scaler tip moves in which pattern?
(A). Linear(B). Round(C). EllipticalPiezoelectric scaler uses ceramic discs or quartz plates to convertelectricity to movement. The tip moves in a linear pattern (front andback) with the two sides of the tip move at 25,000 to 50,000 cycles/sec(cps). The tip moves in an elliptical motion, at 18,000...  Read More
The force of attraction between unlike atoms and molecules is called:
(A).Cohesion(B).Viscosity(C).Mechanical bonding(D).AdhesionKeywords: unlikeThe force of attraction between unlike atoms and molecules on two different surfaces is called adhesion (e.g., a water molecule is attracted to a tree leaf). The chance of adhesion is directly proportional to the amount of...  Read More
The basic unit of the tooth enamel is the:
(A). Enamel rod(B). Enamel tuft(C). Enamel spindle(D). Enamel lamellaeEnamel consists of small fish-shaped rods (prisms) that are lined up next to each other, collectively forming the enamel. Those rods extend from the DEJ (dentino-enamel junction) to the enamel surface. Enamel tufts are defects...  Read More
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
You are almost there! Early congratulations to #soontoberdh
Mini Boards Reviews for the . Find COMPLETE review courses too. “I wish I did not spend money on other review courses!” – Bethany, Bergen CC, March 2016  Read More
What type of probe is this?
(A). Williams(B). UNC(C). Naber’s(D). MarquisTypes of probes: Marquis: 3-6-9-12 mm markings. Black band at 3-6 mm and 9-12 mm. Williams: 1-2-3-5-7-8-9-10 mm markings. No marking at 4, 6 mm. Michigan O: 3-6-8 mm markings. UNC 12 (or 15): 1-2-3-4-5-6-7-8-9-10-11-12-(13-14-15)...  Read More
The upper face is formed from the:
(A).Frontonasal process(B).Maxillary process(C).Mandibular process(D).All of the aboveThe upper face (includes the area of the forehead, bridge of the nose, primary palate, nasal septum, nasal pits, and alae) is formed from the frontonasal process.The middle face (includes the nose from root to...  Read More
The weakest part of a needle is?
(A). Bevel(B).Shaft (C). Hub(D). Cartridge penetrating endThe needle is composed of: Bevel: slanted portion at the tip of the needle. Shaft: tubular metal from the tip of the needle to the hub. Cartridge penetrating end: other end of the needle that extends into the diaphragm of the...  Read More
Which tooth has a buccal pit?
(A). Mandibular first molar(B). Maxillary first molar(C). Mandibular second molar(D).Maxillary second molarHere are some characteristics of the mandibular first molar: Has 2 roots Has 5 cusps (3 facial, 2 lingual) Is generally the first tooth to erupt in the permanent dentition A...  Read More
Cutest dental hygienists in the making! Keep up the amazing work!
Mini Boards Reviews for the . Find COMPLETE review courses too. “I wish I did not spend money on other review courses!” – Bethany, Bergen CC, March 2016  Read More
Which drug is an amide?
(A). Procaine (B). Mepivacaine (C). Propoxycaine (D). CocaineMepivacaine, articaine, prilocaine, lidocaine, and bupivacaine are amides. 3% mepivacaine plain is recommended for patients when vasoconstrictors are contraindicated and for shorter dental procedures.Procaine, propoxycaine, and cocaine...  Read More
An onlay:
(A).Covers the entire chewing surface of a tooth(B).Lies within a cusp of the tooth(C).Covers one or more cusp tip(s)(D).Is bonded to the facial surface of anteriors to improve appearanceAn onlay is an indirect restoration that covers one or more cusp tip(s). It is more extensive than an inlay...  Read More
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