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MOD F Unit-2 Sealants/Dental General Dentistry FINAL EXAM Feb. 2018
Terms in this set (50)
Both b and c are benefits.........
b) They create a fluoride-rich layer that may make pits and fissures more resistant to decay. c) They aid in rematerializing incipient decay.
What is the claimed benefit of fluoride-released sealant materials?
d) All of the above are indications............
a) The explore catches b) Floss does not easily pass through contact. c) The shine is not even.
Which of the following indicates a sealant may have to be replaced or adjusted?
_____ is sometimes used before sealant application to open fissures and remove slight decay.
_____ can be used in interproximal spaces to prevent the etchant from contacting adjacent teeth during the etching procedure.
The technique error most commonly leading to failure is:
d) all of the above..........
a) require occlusal adjustment. b) have a lower wear rate. c) may be visible on x-rays.
Filled sealant resins, as compared with unfilled:
d) both a and b.........
a) is easier to see during application. b) aids in recall checks for sealant retention.
An advantage of a tinted sealant material over clear or colorless material is that it:
Primary molars with deep pits and fissures
Which teeth would be the most likely candidates for sealants ?
that it be properly placed
The single most important factor in the success of a sealant is:
All the reasons pits and fissures are susceptible
Which is not a reason that pits and fissures are more susceptible to decay than smooth surfaces?
Utilization of sealants is only about ____% in low-income children.
3% hydrogen peroxide
If you use an air polishing device that used sodium bicarbonate (Na HCO3) for cleaning enamel prior to sealant placement, the etching step should be repeated for a second time, or ____ should be applied to the surface for 10 seconds to neutralize the Na HCO3 and then thoroughly rinsed off with water prior to applying the etch.
b) 2, 3, 4.........
2) Arrest the progression of caries. 3) Preserve existing restorations. 4) Preserve tooth structure.
Clinical researchers have shown that sealing the margins of amalgam and composite restorations with unfilled resins will do which of the following ?
lack of public awareness
The primary reason why very few children are protected by dental sealants is:
Sealant material should not be stored in proximity to ____-containing products.
The retention of the sealant is obtained by etching the enamel with ____, to roughen it and open the pores in enamel for penetration of the resin sealant.
d) both a and b.............
a) a base b) a catalyst
Self-cured sealant materials are supplied as a two-part system that includes:
A sealant that is polymerized by chemical reactions is called:
The first step in placing dental sealants is to _____ the surface.
The highest risk period for decay occurs within the first ____ years of eruption.
posterior proximal tooth preparation will usually include the occlusal pits and fissures.
Contraindications to sealant placement include proximal decay, because:
pits and fissures
Sealants are indicated for :
Properly placed dental sealants are ____% effective in protecting development of cavities in sealed tooth surfaces.
The pulpal floor is also known as the _____ wall.
The internal surface of a cavity preparation is the :
d) both a and c..........
a) can cause blotches on the teeth if not used properly. c) is inhibited by saliva.
The fastest way to whiten teeth is:
Tooth whitening is permanent
Which statement is not true concerning tooth whitening?
Veneers have an unlimited lifespan
Which statement is not true concerning veneers ?
d) all of the above..........
a) improve the appearance of anterior. b) improve alignment of c) close spaces between
The purpose of a veneer is to ____ teeth.
A temporary restoration that can be placed in any toot or surface for a short period of time is also known as a 9an) _____ restoration.
nearness of the lesion to the gingiva
One of the most important considerations when a dentist is restoring a class V is the :
Lesions of class V decay usually occur on the ____ third of the smooth surface of a tooth.
Mylar matrix system
During a class III or IV restoration, the dentist may use a ____ to help reproduce the correct contours and contact.
During a class III restoration, the dentist will enter the tooth from the _____ surface to minimize the size of the restoration.
Class III restorations involve the interproximal surfaces of ____ and _____.
A comprehensive class II restoration may involve as many as ____ surfaces of a tooth.
Usually ____ material is selected for the permanent restoration of a class I lesion.
A class I restoration involves ____ tooth surfaces(s).
placing a desensitizing or lining agent
A step in the final cavity preparation is:
the size of position of the pulp of the tooth."
Complete the statement:
"When completing a permanent restoration, the dentist should have knowledge of:
An example of a restorative dental procedure is a(n):
severe tetracycline and fluorosis stains
Tooth whitening or vital bleaching is not indicated for a dental patient when the patient presents with:
A veneer is applied to the ____ surface of a prepared tooth.
The retention pin has deep threads that grip the dentin when screwed into tooth structure
Which of the following statements is true of retention pins ?
The class B lesion location will determine the type of restorative material selected.
Which of the following statement is true ?
The usual material of choice for class III and class IV restorations is:
Class II restorations are found on:
preparing, mixing, and transferring dental materials
The dental assistant's responsibilities in a restorative procedure include:
Esthetic dentistry is primarily devoted to improving the appearance of teeth, by either restoring imperfections with direct and indirect restorative materials, or with the use of:
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