Download RDA Practice Exam #1 Question & Answers (Latest update ) and more Exams Nursing in PDF only on Docsity!
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Direct Supervision refers to? - Correct Answers ✅Dentist on premises & examines the treatment performed by DA or RDA before releasing patient General Supervision - Correct Answers ✅Doctor/Dentist - is out of office, but has scheduled auxiliary to be at work Nitrous Oxide administration - Correct Answers ✅Dentist - must remain in the operator & Assistant may adjust controls as directed by the dentist A parent brings in child to office on the dentist's day off, the child has a large cavity. The dentist is unreachable by telephone. The "RDA" should do or advise what? - Correct Answers ✅Refer to another dentist Under General Supervision the RDA may perform? - Correct Answers ✅1. Mouth Mirror
- Place and remove sedative dressings
- Expose radiographs An impression for a "Hawley Retainer" may legally be taken by who? - Correct Answers ✅Dentist only
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Under Direct supervision the "RDA" may perform? - Correct Answers ✅1. Pulp Vitality test
- Cementation of temporaries
- Size Stainless steel bands, crowns, and orthodontic bands. Under Direct Supervision the dental assistant may perform what? - Correct Answers ✅1. Place topical anesthetic
- Monitor Vital signs
- Place rubber dam RDA CEU licensure renewal requirements - Correct Answers ✅1. Twenty-five units of continuing education every two years One continuing education unit is equivalent to a lecture or seminar of what? - Correct Answers ✅One hour The RDA license is renewed when? - Correct Answers ✅1. The RDA's birthday
- Odd or even year of birth How many continuing education units may be earned in Category 1 and Category II? - Correct Answers ✅At least half must be Category II
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When the "Matrix Band" is placed on a posterior tooth, the smallest circumference of the band is directed towards the? - Correct Answers ✅Gingival part of the tooth In addition to wedges, the "Matrix Band" may be secured with? - Correct Answers ✅Low fusing compound Wedges - are most commonly composed of? - Correct Answers ✅1. Wood
- Plastic Matrices "matrix band" are composed of? - Correct Answers ✅1. Stainless steel
- Plastic strips On "Posterior Teeth" the matrix band is placed where? - Correct Answers ✅One to three millimeters (1-3) above the cusp and 1/2 to 1 mm below the gingival An "Anterior" Matrix band may be held in place by what? - Correct Answers ✅1. Matrix clip
- The dentist - using finger or thumb
- The DA or RDA - using finger or thumb
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The most common shape of posterior wedges is what? - Correct Answers ✅Triangle The instrument/s used to contour the matrix band to the tooth is? - Correct Answers ✅Burnisher only The Contra-angle Tofflemire retainer is use for application on which teeth? - Correct Answers ✅Posterior teeth using buccal approach The correct sequence for removal of a posterior "Matrix Band" is, in order the? - Correct Answers ✅1. Wedge
- Holder
- Matrix band Zinc oxide - left on gingival tissues around the tooth, they will have what? - Correct Answers ✅Palliative effect on tissues After placement of a sedative dressing, the RDA should check where? - Correct Answers ✅1. Contact area
- Occlusions
- Marginal excess
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When used as a base, which cement is the "LEAST IRRITATING" to the pulp? - Correct Answers ✅Zinc Oxide - Eugenol When used as a base, which cement requires "SEPARATION FROM THE PULP" by use of a cavity varnish? - Correct Answers ✅Zinc Phosphate RDA - may legally remove interproximal cement how? - Correct Answers ✅By tying a knot in dental flossing through contact areas When used as a "Base or Thermal insulator" zinc phosphate is placed where? - Correct Answers ✅Into deeper areas of the preparation only Indirect pulp capping - the medication of choice is? - Correct Answers ✅Calcium Hydroxide Zinc Phosphate cement - how is it mixed? - Correct Answers ✅Glass slab over a large area Exothermic materials - what is considered this? - Correct Answers ✅Zinc Phosphate Zinc phosphate is mixed for how long? - Correct Answers ✅"1 minute" on a glass slab with a large area
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Cavity varnish - primary function is to? - Correct Answers ✅Prevent microscopic leakage by sealing dentinal tubules Placing materials in tooth - sequence - Correct Answers ✅1. Calcium Hydroxide
- Cavity Varnish
- Zinc Phosphate cement What dental material has a palliative effect on the pulp? - Correct Answers ✅Zinc - Oxide - Eugenol Zinc Phosphate cement - mixing too rapidly will result in what? - Correct Answers ✅1. Acceleration of setting time
- An exothermic reaction in the tooth
- Pulpal irritation Vaseline - may be added to a temporary cement mix to do what? - Correct Answers ✅Facilitate removal of the temporary Cement - consistency for base, and luting - Correct Answers ✅Base - doughy Luting - stringy
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Why is it important for a crown to fit securely around the gingival margins? - Correct Answers ✅1. Prevents horizontal drifting
- Reduces leakage
- Prevents entrance of bacteria
- Prevents extrusions of the tooth What does Correct occlusal height of a temporary crown do? - Correct Answers ✅Prevents extrusion What does Crimping do? - Correct Answers ✅Prevents microleakage and irritation of gingival tissue What does the Correct mesiodistal width and contact area do? - Correct Answers ✅Prevent drift What does correct gingival depth or crown length do? - Correct Answers ✅Prevents detachment of gingival Types of temporary crown/s which may be placed include? - Correct Answers ✅1. Aluminum
- Performed anterior acrylic
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Dental Assistants - may take alginate impressions for? - Correct Answers ✅1. Study models
- Opposing models Alginate - what is it? - Correct Answers ✅An irreversible hydrocolloid Alginate - Mixing process - Correct Answers ✅Water is placed in the bowl first Impressions tray - in the shape of a 'U" is used for the? - Correct Answers ✅Lower impression Alginate impression trays include? - Correct Answers ✅1. Perforated metal
- Perforated plastic
- Rim-locked Inserting impression tray in the patient's mouth, it is placed by doing what? - Correct Answers ✅1. Retracting lips & cheek
- Placing first one side of the tray
- Then the other
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- Excessive spatulation time
- Insufficient water Alginate mixing - rough or lumpy mix may be caused by what? - Correct Answers ✅1. Insufficient water
- Excessive powder
- Improper mixing technique When placing impression tray in the patients mouth the auxiliary is what? - Correct Answers ✅12:00 o'clock position for the "Maxillary and the mandibular impressions" Impression tray - Blood, debris, saliva may be left in the impression tray and cause what? - Correct Answers ✅Weaken the gypsum model Antibiotic premedication - who may require this before prophylaxis and coronal polishing? - Correct Answers ✅1. Patients with heart problems
- Patients with Rheumatic fever Disclosing solution - is swallowing a small amount dangerous? - Correct Answers ✅It is harmless and nontoxic
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If a small quantity of disclosing solution is inadvertently swallowed by a patient during an application, the operator would? - Correct Answers ✅Not be concerned as it is harmless and nontoxic Tetracycline stain is an example of? - Correct Answers ✅En "Endogenous/Intrinsic" stain An example of extrinsic stain is? - Correct Answers ✅Tabacco stain Coronal polishing may be performed by? - Correct Answers ✅1. Dental Assistant trainee during a program accredited by the California Board of Dental Examiners
- Registered Dental Assistant with a coronal polishing cetificate When using a modified pen grasp, the fulcrum is established with what finger? - Correct Answers ✅Ring finger Polishing of occlusal surfaces is accomplished with with what tool/instrument? - Correct Answers ✅A rubber cup A soft, white material which collects around the necks of the teeth in the mouth of the patient with poor hygiene is usually what material? - Correct Answers ✅Calculus
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The ideal fulcrum position during coronal polishing is? - Correct Answers ✅On the same arch, as close as possible, to the tooth being polished A fulcrum is contraindicated on what? - Correct Answers ✅The vestibule The lips A pontic Acidualted fluride application are placed in the patients mouth for a period of - Correct Answers ✅Four minutes After fluoride treatment, the patient is not to eat, drink, or rinse for a period of? - Correct Answers ✅30 minutes When fluoride is added to the public water supply the fluoride/water ratio is? - Correct Answers ✅1PPM
