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A comprehensive set of questions and answers for aspiring dental assistants in minnesota. it covers a wide range of topics, including sealant application, rubber dam techniques, stain removal, and periodontal dressing. The detailed q&a format is ideal for self-assessment and exam preparation, enhancing understanding of key concepts in dental assisting procedures.
Typology: Exams
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Which type of teeth need to be etched longer than the other? - ANSWER Primary teeth Sealants are available are filled or infilled resins. Which type of sealants are requiredchecking of the occlusion for possible adjustments? - ANSWER Filled
Which type of sealants are 100% BIS-GMA? - ANSWER Unfilled Which type of sealants is tougher and more wear resistant? - ANSWER Filled (Quartz) Which of the following methods could be used to clean the tooth before the applicationof sealants? - ANSWER Pumice
Which of the following provides the best isolation technique for sealants application? -ANSWER Rubber dam
What is the % phosphoric acid is contained in the etchant material? - ANSWER 35%-50% A polishing agent that contains oils/fluoride will? - ANSWER Affect the retention of thesealant to the tooth structure
Saliva contamination of the etched surfaces will require re-etching for? - ANSWER 5seconds and rinse again
Sealants materials should not be stored by any material that contains? - ANSWEREugenol
The tooth that receives the rubber dam clamp is referred to as the? - ANSWER Anchortooth
The distance from the boarder for the maxillary arch punching should be? - ANSWER 1inch
The distance from the boarder for the man arch punching should be? - ANSWER 2inches
A universal clamp means that? - ANSWER It can be placed on the same type of tooth inthe opposite quadrant
Which of the following rubberdam frames can be used under the dam? - ANSWERPlastic Ushaped frame | young's frame | otsby frame
A clamp that can be used for partially erupted tooth and has wings is the? - ANSWER"A" clamp
Which color of dental damn provides more contrast against the tooth? - ANSWERDarker
Which side of the dental clamp is seated first? - ANSWER Lingual The rubber dam clamp is positioned below the? - ANSWER Height of contour? Greater tissue retraction of the dental damn can be accomplished with? - ANSWERAdditional clamps
Which of the following clamps may be required of the gingival 1/4 of the tooth needs tobe restored? - ANSWER Cervical clamp OR anterior clamp
This stain is the result of metals/salts inhaled in industrial settings or taken orally incertain drugs? - ANSWER Silver amalgam
These two stains are usually associated with poor oral hygiene - ANSWER Brown oryellow (green stain )
These stains are the result of coal/tar combustion - ANSWER Tabaco stain These stains are most frequently found in children? - ANSWER Green stains These stains form a thin line slightly above the gingiva and follow the contour of thegingival margin - ANSWER Black stains
These stains are believed to be caused by chromogenic bacteria - ANSWER Imperfecttooth development
These stains are associated with a substance found in chewing gum and mouth rinse -ANSWER Dental plaque agents
This type of abrasive is used for stain removal and polishing. It may be used on goldrestorations, exposed dentin , and tooth-colored restorations as well as enamel - ANSWER Zirconium silicate This type of abrasive is very fine polishing agent used on enamel and metallicrestorations. Used in a past form and mixed with a wetting agent. - ANSWER Tin oxide
This type of abrasive is used to remove stains from the enamel during a mechanicalpolish - ANSWER Flour of pumice
The dental handpiece should be started - ANSWER When it is in the mouth, near the
tooth to be polished This type of retraction is accomplished by placing a retraction cord - ANSWERMechanical
This type of retraction is accomplished by using a retraction cord impregnated with anagent - ANSWER Chemical
This type of gingival retraction is accomplished by using a surgical knife orelectrosurgery - ANSWER Surgical
Ischemia - ANSWER Is a technique that causes a shrink of the tissue Which substance that is used on a retraction cord is a vasoconstrictor and provideshemostatis - ANSWER Epinephrine
Which of the substance listed below is contraindicated for a patient with heart disease -ANSWER Epinephrine
Which size cord is placed first? - ANSWER Smaller What is the proper position of the tucked cord? - ANSWER 1 to 3mm Better tissue displacement which results in a better impression is accomplished by -ANSWER Double cord placement
Separating springs and elastomeric separators are the two main methods of separationused for the - ANSWER Posterior teeth
What is the name of the type of pliers that are us d to place elastics separators -
Allows placement and removal or creation of adjustment bends in the arch wire -ANSWER Howe pliers
Remove bands without placing stress on the tooth - ANSWER Posterior band removerpliers
Used for holding and bending and adjusting arch wires to create movement - ANSWERWire-bending pliers
Cuts the ligature wire once it has been ligated around the bracket - ANSWER Pin andligature cutter
Bands are most commonly placed on - ANSWER First molars and second molars This bracket edge is contoured and slightly rolled - ANSWER Occlusal edge This bracket edge is straight and smooth - ANSWER Gingival edge The margin of the band should fit on the ___ third of the tooth - ANSWER Middle Seating lugs are positioned on the ___ side of the band and are used to aid in seating theband - ANSWER Lingual
The band seater is placed along the ____margins - ANSWER Buccal Bands can be interchanged between the right and left sides - ANSWER True This cement is commonly selected for cementing the band because of its strength to aid
in retention with the enamel and it has fluoride releasing properties - ANSWER Glassionomer
Bracket can be cemented or bonded onto the tooth structure - ANSWER True The hand instrument of choice for excess bond removal is - ANSWER A U15 scaler The rotary instrument used to remove excess bond material is the - ANSWER #1172finishing bur
Non-abortable sutures can be removed ____ days after the surgery - ANSWER 5 to 7days
This type of suture material which is the most common type provides the fastest healingfor mucous membrane and subcutaneous tissue - ANSWER Plain catgut
The appearance of a healing site could include - ANSWER Slightly read with granulationtissue |dark pink with granulation tissue|red with granulation tissue
Another term for dry socket is - ANSWER Alveolities or alveolar osteitis Which is the most widely used periodontal dressing material due to allergy retraction insome patients - ANSWER Non-eugenol
Which type of dressing material can be mixed ahead of time due to a slow setting time -ANSWER Zinc oxide eugenol
The periodontal dressing material hardens in - ANSWER A few hours Which dressing material has a rapid setting time if exposed to warm temperatures and
The cervical margin of the provisional coverage is smooth and fits snugly, with no morethan ______mm of space between the crown margin and the finish line of the preparation
The occlusal surface of the provisional coverage is - ANSWER Aligned with the occlusalplane of the adjacent teeth
The type of the cement is commonly used because of their sedative effect on sensitiveteeth - ANSWER ZOE temporary luting cement
This cement are compatible with resin provisional restorations - ANSWERPolycarboxylate temporary luting cement
These cements present high strength, excellent retention, better esthetics, and easycleanup - ANSWER Resin temporary luting cement
When an impressions has not fully reseated filled with the provisional material, this canoften cause - ANSWER Occlusal errors or voids
I'd the material flows into the undercuts formed by the proximal surfaces of the adjacentteeth, this will cause - ANSWER Locking on a provisional restoration
This occurs when the provisional crown is first removed from the preparation and willcause - ANSWER Marginal discrepancies
This type of alginate impression tray is used to cover the anterior portion of the arch -ANSWER Section
There should be ______ mm of space between the impression tray and the teeth to allowenough room for impression material - ANSWER 2-3 mm
Which impression is taken first - ANSWER Mandíbular What is the purpose of coating the occlusal surfaces with impression material beforeseating the tray - ANSWER Helps to eliminate bubbles on the occlusal surface
What is the procedure for seating the maxillary/mandibular impression - ANSWER Seatboth of them posterior to anterior
Horseshoe shaped wax, flat sheet utility wax and polysiloxane impression material areall examples of - ANSWER Bite registration materials
Most tooth-whitening products are made from - ANSWER Sodium perborate Hydrogen peroxide Carbamide peroxide The bleaching gel typically contains between ____ and _____ carbamide peroxide -ANSWER 10 to 30 percent
What might be a flouride option for treating tooth sensitivity after whitening? - ANSWERSodium fluoride
The ADA recommends the topical anesthetic to be left in place for _____ minute(s) -ANSWER 1
A _______ movement is used to remove excess cement to avoid weakening of themarginal cement - ANSWER Horizontal
inhalation at rest If a patient had a shallow patient you would - ANSWER Increase the +VA Occupational exposure per year is - ANSWER 5.0 rem The _____ is a way of measuring radiation exposure by determining the amount ofionization that occurs in the air - ANSWER Roentgen
1 grays equals - ANSWER 100 rads 1 siervent equals - ANSWER 100 rem Electrons within the tube head travel - ANSWER From the cathode to the anode An image with many shades of gray and few areas of black and white are referred to as -ANSWER Low contrast
An image with many very dark areas and very light areas and few shades of gray arereferred to as - ANSWER High contrast
The inverted Y junction of the anterior wall of the Max sinus and the lateral wall of thenasal cavity commonly appears on a - ANSWER
The most radiosensitive tissue is the - ANSWER Bone marrow (blood) If a patient is allergic to epinephrine impragnated in a cord you would use what? -ANSWER Aluminum Chloride
Impragnated wire contains - ANSWER 10% Most sealant failures result in - ANSWER W in the first 3/6 months Do not use sealants if the patient is allergic to what? - ANSWER Acrylic How common is it for sealants to last with proper placement? - ANSWER 5-10 years What's is a witting product - ANSWER Silex increase density - ANSWER Increase exposure time Post instructions for patients that have fluoride - ANSWER After a fluoride treatment thepatient must wait 4-6 hours before brushing or flossing
Which retainer can you deliver when the dentist is not in the office (ortho) - ANSWERVacuum retainer (plastic )
What is ppm? - ANSWER Part per million for drinkable fluoride in the water. Rangesfrom 0.7-1.2mgL
What can you use to trim any interproximal tags (temp crown ) - ANSWER With scissors If a marginal discrepancy occurs (temp crown ) - ANSWER The simplest solution is to :reline it with more material and the reseat for setting (don't fill it all the way just reline the material to the inner aspect of the crown margin )