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Questions and Answers
Prednisolone is a type of antibiotic used to treat dentin hypersensitivity.
False
Fluoride iontophoresis drives calcium ions into the dentinal tubules.
False
Arginine-based products, such as ProArgin, use bicarbonate as a pH buffer.
True
Laser therapy is a painful treatment for dentin hypersensitivity.
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Oxalates are typically used in dentin bonding agents to treat dentin hypersensitivity.
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Fluoride plays a role in increasing dentinal permeability.
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Dentifrices containing 10% strontium chloride are effective in treating dentin hypersensitivity.
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Potassium nitrate reduces dentin hypersensitivity by covering open tubules with a thin film.
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Fluoride decreases dentinal permeability by precipitating calcium fluoride crystals in the tubules.
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Oxalates dissolve open dentinal tubules to reduce hypersensitivity.
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Dentin bonding agents can be applied to seal the dentinal tubules and reduce hypersensitivity.
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Gingival grafts are always necessary to treat dentin hypersensitivity.
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GaAlAs laser deposition is used to alter nerve transmission in dentin hypersensitivity treatment.
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Bioglass contains silica as a main component which acts as a nucleation site for precipitation of calcium and phosphate.
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Nanohydroxy apatite paste technology is used to treat carious lesions but not dentin hypersensitivity.
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Er:YAG laser is used to coagulate proteins within the dentinal tubules and block fluid movement.
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Nanodentistry deals with materials with component sizes greater than 100 nm in dimension.
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Adhesion to dental hard tissues after Er:YAG laser etching is superior to that obtained after conventional acid etching.
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The argon laser produces high intensity visible red light (488nm) which is able to initiate photopolymerization of light-cured dental restorative materials.
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Laser radiation is not able to alter the surface chemistry of both enamel and root surface dentine.
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The temperature increase at the level of the dental pulp is higher with argon laser curing than when conventional quartz tungsten halogen lamp units are used.
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Microirregularities on the enamel surface do not offer a mechanism of adhesion without acid-etching.
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The use of argon laser curing results in a longer curing time and a decreased depth of cure.
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The word 'laser' is an acronym for Light Amplification by Stimulated Emission of Radiation.
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Dental lasers are named based on the active medium that is not stimulated.
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Laser light is unique in that it is polychromatic (light at multiple specific wavelengths).
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The active medium in a laser can be a solid state crystal rod.
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The wavelength of a laser's light does not affect its interactions, indications, and specificity for use in treatment procedures.
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Laser light is directional due to its high divergence.
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Lasers can be used to modify the calcium to phosphate ratio in dental hard tissues, making them more resistant to acid attack.
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The Er: YAG laser is not effective in desensitizing hypersensitive dentine.
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Laser irradiation of enamel surfaces makes them more susceptible to acid attack.
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Laser bleaching aims to achieve a slower power bleaching process using a less efficient energy source.
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Laser therapy is a painless treatment for dentin hypersensitivity.
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Laser is used to prevent caries by modifying the dental hard tissues.
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Contamination of an exposure of the pulp by microorganisms is a rare cause of pulp irritation.
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Streptococci, lactobacilli, and actinomyces are types of microorganisms that can cause irritation of dental pulp and periradicular tissues.
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The response of pulp to bacteria is dependent on the speed of bacterial ingress and the speed of progress of caries.
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Systemic diseases such as tuberculosis, leprosy, and actinomycosis are common causes of pulp irritation.
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The population of microorganisms in dental caries decreases significantly in the deepest layers of carious dentin.
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Microbial irritants can cause immediate necrosis of the pulp.
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Industrial acids can cause demineralization of the labial surface of anterior teeth.
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Frequent ingestion of low pH cola drinks can cause erosion of tooth structure.
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Silicate filling material is compatible with pulp tissue.
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Chronic vomiting can cause erosion on the palatal surface of the upper teeth.
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Taking concentrated hydrochloric acid through a straw or glass tube can cause erosion on the lingual surface of the upper teeth.
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Fruits juices are not acidic enough to cause erosion of tooth structure.
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The healthy pulp responds by depositing a layer of reparative dentine over its pulp surface.
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Pulp inflammation is always significant when the caries reaches within 1 mm of the pulp.
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The amount of circulation affects the pulp tissue's response to inflammation.
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Tooth preparation can cause pulp trauma due to the extensive removal of dentin.
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The width of the cavity has no effect on the pulp.
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Bacteria can persist at the site of necrosis after pulp exposure.
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The removal of the coronal portion of a vital pulp is known as pulpotomy.
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Pulpotomy is generally recommended for permanent teeth rather than deciduous teeth.
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Glass-ionomer liner or base can be used as a restorative material in teeth with conventional direct pulp caps.
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Rinsing with sterile saline can facilitate hemostasis.
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Mixing and applying a thin layer of pure calcium hydroxide can cause tissue necrosis.
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A hard-setting calcium hydroxide liner can cause tissue necrosis in the same manner as pure calcium hydroxide.
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Direct pulp capping is indicated for pulp exposures resulting from caries removal, tooth preparation, or trauma.
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Pulp tissue jeopardized by acute inflammation is always a suitable candidate for direct pulp capping.
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A hard-setting calcium hydroxide liner is applied directly to the exposure site in direct pulp capping.
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Glass ionomer base/liner material is not used to protect the calcium hydroxide dressing in direct pulp capping.
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Dentin/enamel bonding system is not used to seal the cavity preparation and restore the tooth in direct pulp capping.
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Chlorhexidine solution is not used to aid in hemostasis during direct pulp capping.
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The entire mass of coronal pulp tissue is removed in a partial pulpotomy.
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MTA is a material used for vital pulp therapy.
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Calcium hydroxide is used to cap the pulp tissue in a partial pulpotomy.
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The inflammatory response of pulp tissue is dependent on the speed of bacterial ingress and the speed of progress of caries.
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Resin-modified glass ionomers are used as dentin adhesives.
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The repair of affected pulpal tissue is only possible through the use of antibiotics and growth factors.
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