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NDHCE - MOCK UPDATED ACTUAL EXAM QUESTIONS
AND CORRECT ANSWERS
how often should a child with a transitioning dentition be prescribed radiographs? - CORRECT ANSWER >>> 6 - 12 months for high caries risk or if caries are visible clinically 12 - 24 months if caries risk is low how often are radiographs recommended for adults with no clinical caries and/or low risk for caries? - CORRECT ANSWER >>> 24 - 36 months what is the disadvantage to boil and bite mouth guards? - CORRECT ANSWER >>> most do not cover all posterior teeth what is the most reliable evidence that disease has stopped? **- CORRECT ANSWER
** bleeding on probing what is a class II malocclusion - CORRECT ANSWER >>> MB cusp of the max 1st molar is in front of the buccal groove of the mand 1st molar what is a class III malocclusion - CORRECT ANSWER >>> MB cusp of the max 1st molar is behind the buccal groove of the mand 1st molar describe a class I furcation - CORRECT ANSWER >>> curvature of the concavity can be detected with the probe tip but it cannot enter the space; no radiolucency on rads describe class II furcation - CORRECT ANSWER >>> probe penetrates into the furcation, but does not completely pass through to the other side; slight radiolucency on rads
describe class III furcation - CORRECT ANSWER >>> probe passes through completely through the other side; radiolucency usually visible from rads describe class IV furcation - CORRECT ANSWER >>> 4 clinically visible because of recession and probe passes through; larger radiolucency describe ASA 1 - CORRECT ANSWER >>> healthy with no systemic conditions or allergies describe ASA 2 - CORRECT ANSWER >>> mild systemic diseases (controlled hypertension, mild obesity, pregnancy, allergies etc) describe ASA 3 - CORRECT ANSWER >>> severe systemic disease (poorly controlled hypertension, morbid obesity, chronic renal failure) describe ASA 4 - CORRECT ANSWER >>> severe systemic disease that are a constant threat to life (liver failure, unstable angina) describe ASA 5 - CORRECT ANSWER >>> patients who are not expected to survive more than 24 hours
describe a class III caries lesion - CORRECT ANSWER >>> extend through DEJ toward the pulp which instrument would best remove sub calculus in a class II furaction? **- CORRECT ANSWER
** gracey with an extended shank and smaller working end describe nasopalatine canal cyst - CORRECT ANSWER >>> located in nasopalatine canal or incisive papilla most common in males shaped like a heart how long should you wait to have oral care completed following a cerebrovascular accident - CORRECT ANSWER >>> 6 months describe globulomaxillary cyst - CORRECT ANSWER >>> located between max lateral and cuspid pear shaped describe a simple bone cyst - CORRECT ANSWER >>> traumatic bone cyst that is thought to appear with trauma most common on mand can a release form of refusal be legally binding? - CORRECT ANSWER >>> no what is considered 'high concentration hydrogen peroxide' - CORRECT ANSWER >>> 30 - 39% professional strength
what is the purpose of a periodontal dressing? - CORRECT ANSWER >>> preserve blood clots prevent debris accumulation increase pt comfort what are the 5 signs & symptoms of gingivitis - CORRECT ANSWER >>> colour contour consistency bleeding pain what is karposi's sarcoma - CORRECT ANSWER >>> red/purple lesion mostly on hard palate, tongue and gingival surfaces usually related to HIV what are neutrophils? - CORRECT ANSWER >>> first cells to be delivered to an injured area and are the most common inflammatory cell what are monocytes? - CORRECT ANSWER >>> second WBC to emerge to injured areas upon transport to the tissues, they are known as macrophages what are erythrocytes? - CORRECT ANSWER >>> red blood cells what is a pellicle? - CORRECT ANSWER >>> thin later that naturally forms on tooth 'adhesive' that accumulates debris and bacteria what does succedaneous mean? - CORRECT ANSWER >>> there are primary predecessors
down syndrome and autistic pt may have this how much toothpaste should a child younger than 3 years child 3-6 years use? - CORRECT ANSWER >>> <3 - smear 3 - 6 - pea size what is deft? - CORRECT ANSWER >>> decayed, exfolicated, filled teeth index used to determine dental caries experience in primary teeth what does a typical finding mean in EO/IO? - CORRECT ANSWER >>> not present in all people, but WNL what are the three head and neck exam categories? - CORRECT ANSWER >>> normal typical and pathological are fixed nodes a concern? - CORRECT ANSWER >>> yes and they should be noted what group of nodes are commonly enlarged AFTER infection? **- CORRECT ANSWER
** submandibular where are the subclavicular nodes located? - CORRECT ANSWER >>> just above the clavicle
where are the occipital nodes? - CORRECT ANSWER >>> one inch above and below hairline
base of skull what is bimanual palpation? - CORRECT ANSWER >>> finger and thumb from each hand what is bilateral palpation? - CORRECT ANSWER >>> two hands used at the same time where is the parotid duct? - CORRECT ANSWER >>> mesial to the parotid salivary gland what houses the whartons duct? - CORRECT ANSWER >>> sublingual caruncle what are the two oblique elevations found laterally away from the lingual frenum? - CORRECT ANSWER >>> sublingual folds where are the papilla of the tongue located? - CORRECT ANSWER >>> dorsal and lateral of tongue how is cancer of the oral cavity treated? - CORRECT ANSWER >>> chemotherapy, radiation, surgery how to get rid of bulky tumours - CORRECT ANSWER >>> radiation where is the sublingual gland located? - CORRECT ANSWER >>> anterior to submandibular gland under tongue what is the inner canthus of eye? - CORRECT ANSWER >>> fold of tissue at inner corner of eyelids
what is a normal periodontal change with age? - CORRECT ANSWER >>> smaller pulp chambers what do you do is someone is contraindicated for a certain LA? - CORRECT ANSWER >>> can be used in small amounts if nothing else is available what is a glass ionomer? - CORRECT ANSWER >>> seals tubules and releases fluoride what does calcium hydroxide? - CORRECT ANSWER >>> liner that stimulates formation of reparative dentin what is eugenol? - CORRECT ANSWER >>> soothes the pulp what is zinc phosphate? - CORRECT ANSWER >>> a cement what is the earliest clinical sign of radiation exposure? - CORRECT ANSWER >>> erythema what hepatitis is the most asymptomatic? - CORRECT ANSWER >>> hep C what gland produces the most saliva? - CORRECT ANSWER >>> submandibular 65% total how much saliva does parotid gland produce? - CORRECT ANSWER >>> 25% how much saliva does sublingual gland produce? - CORRECT ANSWER >>> 10% which tooth structure are korff;s fibers located? - CORRECT ANSWER >>> mantle dentin
what microorganism does chlorhexidine suppress? - CORRECT ANSWER >>> streptococcus mutans what vitamin is not fat soluble? - CORRECT ANSWER >>> vitamin c deficiency in what can cause cheilosis and glossitis? - CORRECT ANSWER >>> riboflavin what tooth has an oblique ridge? - CORRECT ANSWER >>> max first molar oblique ridge runs from ________ to ________ surfaces **- CORRECT ANSWER
** mesiolingual to distobuccal what is most resistant to disinfective agents? - CORRECT ANSWER >>> hepatitis desensitizing toothpastes need to be used for ________ before it is effective - CORRECT ANSWER >>> two weeks pt's with an increased risk for bacterial endocarditis should rinse with chlorhexidine.... - CORRECT ANSWER >>> pre-operatively before treatments such as extractions what is the chlorhexidine staining caused by? - CORRECT ANSWER >>> reaction of chlorhexidine with chromogens chlorhexidine staining is.... - CORRECT ANSWER >>> easy to remove
what extrinsic stain has the potential to become intrinsic? - CORRECT ANSWER >>> green
what are 3 characteristics of essential oils? - CORRECT ANSWER >>> oils alter the bacterial cell wall control plaque and gingivitis burning sensation associated with alcohol if you apply fluoride on a child without the parents permission you are doing... - CORRECT ANSWER >>> technical battery your mom has several porcelain veneers, what fluoride should you give them? - CORRECT ANSWER >>> 2% neutral sodium fluoride if pt suffers from xerostomia what fluoride should you give them? **- CORRECT ANSWER
** 2% neutral sodium fluoride What is bluish-green stain associated with? - CORRECT ANSWER >>> inhaling metallic dust, most likely for an occupational exposure What is dark- brown stain associated with? - CORRECT ANSWER >>> tobacco use ** hepatitis desensitizing toothpastes need to be used for ________ before it is effective - CORRECT ANSWER >>> two weeks pt's with an increased risk for bacterial endocarditis should rinse with chlorhexidine.... - CORRECT ANSWER >>> pre-operatively before treatments such as extractions what is the chlorhexidine staining caused by? - CORRECT ANSWER >>> reaction of chlorhexidine with chromogens chlorhexidine staining is.... - CORRECT ANSWER >>> easy to remove what extrinsic stain has the potential to become intrinsic? - CORRECT ANSWER >>> green what are 3 characteristics of essential oils? - CORRECT ANSWER >>> oils alter the bacterial cell wall control plaque and gingivitis burning sensation associated with alcohol if you apply fluoride on a child without the parents permission you are doing... - CORRECT ANSWER >>> technical battery your mom has several porcelain veneers, what fluoride should you give them? - CORRECT ANSWER >>> 2% neutral sodium fluoride if pt suffers from xerostomia what fluoride should you give them? - CORRECT ANSWER >>> 2% neutral sodium fluoride What is bluish-green stain associated with? - CORRECT ANSWER >>> inhaling metallic dust, most likely for an occupational exposure What is dark- brown stain associated with? - CORRECT ANSWER >>> tobacco use what is green stain associated with? - CORRECT ANSWER >>> poor oral hygiene, chromogenic bacteria, fungi, and gingival hemorrhage. what type of mouth rinse should be avoided in tobacco smokers? **- CORRECT ANSWER ** essential oils
alcohol and tobacco increase risk for head and neck cancers what does the diastolic reading measure? - CORRECT ANSWER >>> represents ventricular relaxation at their lowest pressure What does systolic pressure measure? - CORRECT ANSWER >>> pressure in the arteries at the peak of ventricular ejection what ultrasonic tip is curved L or R and has a ball on the end? **- CORRECT ANSWER
** furcation insert what is the max level of fluoride for home use? - CORRECT ANSWER >>> 5000 ppm what are symptoms of trigeminal neuralgia? - CORRECT ANSWER >>> inability to swallow decreased function of the anterior pituitary gland can cause... **- CORRECT ANSWER ** addisons disease what type of hepititis does someone have if it does not come up on blood work? - CORRECT ANSWER >>> A normally remains as acute condition and will usually improve without treatment what does fogging of the oxygen mask mean? - CORRECT ANSWER >>> pt has started breathing what type of hepatitis does not have a vaccine? - CORRECT ANSWER >>> Hep C
a LA block is needed for debridement in the lower right quadrant. What is the anatomical landmark used when administering this injection? **- CORRECT ANSWER
** pterygomandibular raphe fold of tissue between the retromolar area and the max tuberosity separates soft palate from cheek can local anesthetics effect a nursing baby negatively? - CORRECT ANSWER >>> no can topical lidocaine be used on a mother who is nursing? - CORRECT ANSWER >>> yes list LAs from longest to shortest duration septocaine bupivacaine lidocaine mepivacaine - CORRECT ANSWER >>> bupivacaine - longest duration lidocaine - med duration septocaine mepivacaine LA are delivered through which route? - CORRECT ANSWER >>> subcutaneous route what agent present in LA require an ashmatic person to be watched? **- CORRECT ANSWER ** sodium bisulfite present with vasoconstrictors
asthma pts will wheeze and have chest tightness where are amide LAs metabolized? - CORRECT ANSWER >>> liver why should LA be used in caution with people who experience seizures? **- CORRECT ANSWER
** lower the seizure threshold vasoconstrictors are added to LA to retard.... - CORRECT ANSWER >>> absorption what is utility wax used for? - CORRECT ANSWER >>> modify shape of impression trays and cushion braces what is sticky wax used for? - CORRECT ANSWER >>> attach models
