Laser Applications in Operative Dentistry

<p>To amplify light through stimulated emission</p> Signup and view all the answers

<p>The wavelength of the laser's light</p> Signup and view all the answers

<p>Gas, liquid, and solid state crystal rod</p> Signup and view all the answers

<p>488 nm</p> Signup and view all the answers

<p>Lack of fluorescence from carious enamel and dentine</p> Signup and view all the answers

<p>810 nm, 940 nm, 980 nm, 1064 nm</p> Signup and view all the answers

<p>Greater sensitivity</p> Signup and view all the answers

<p>10,600 nm</p> Signup and view all the answers

<p>Difficulty in detecting proximal lesions</p> Signup and view all the answers

<p>It reduces the risk of pulp damage</p> Signup and view all the answers

<p>A white, chalky appearance</p> Signup and view all the answers

<p>It has a higher water content than healthy dental hard tissues</p> Signup and view all the answers

<p>To detect carious lesions in areas of poor clinical access</p> Signup and view all the answers

<p>20-50 μm/pulse</p> Signup and view all the answers

<p>They are sharp and dentinal tubules remain open without a smear layer</p> Signup and view all the answers

<p>The ablation threshold of healthy dentine is two times higher than the corresponding threshold of carious dentine.</p> Signup and view all the answers

<p>It cannot remove gold crowns and ceramic materials due to low absorption and reflection of the laser light.</p> Signup and view all the answers

<p>Both microscopic and macroscopic irregularities.</p> Signup and view all the answers

<p>Amalgam restorations due to potential release of mercury vapor.</p> Signup and view all the answers

<p>The Er: YAG laser produces less vibration than bur treatment.</p> Signup and view all the answers

<p>The ablation efficiency is comparable to that of enamel and dentine.</p> Signup and view all the answers

<p>It decreases the ratio</p> Signup and view all the answers

<p>It is more effective than conventional desensitizing systems and has a longer lasting effect</p> Signup and view all the answers

<p>To achieve an effective power bleaching process using the most efficient energy source</p> Signup and view all the answers

<p>They become more acid resistant</p> Signup and view all the answers

<p>It uses high-intensity light to raise the temperature of hydrogen peroxide, accelerating the chemical process of bleaching</p> Signup and view all the answers

<p>It improves the success rate of treatment</p> Signup and view all the answers

<p>Formation of an apatite layer that occludes the tubules</p> Signup and view all the answers

<p>Silica</p> Signup and view all the answers

<p>Occlusion of dentinal tubules with a dentinal plug</p> Signup and view all the answers

<p>Less than 100 nanometers in dimension</p> Signup and view all the answers

<p>Both A and B</p> Signup and view all the answers

<p>Arginine attracts a calcium-rich layer from saliva to block the dentinal tubules</p> Signup and view all the answers

<p>To drive fluoride ions more deeply into the dentinal tubules</p> Signup and view all the answers

<p>It induces remineralization resulting in occlusion of dentinal tubules</p> Signup and view all the answers

<p>Saliva provides a calcium-rich layer to infiltrate and block the dentinal tubules</p> Signup and view all the answers

<p>It is rich in phosphate, calcium, and carbonate</p> Signup and view all the answers

<p>It is a painless treatment for the patient</p> Signup and view all the answers

<p>It penetrates A delta fibers, reducing their excitability</p> Signup and view all the answers

<p>To decrease the dentinal permeability by precipitating calcium fluoride crystals</p> Signup and view all the answers

<p>They seal the dentinal tubules, reducing hypersensitivity</p> Signup and view all the answers

<p>They precipitate and occlude the open dentinal tubules</p> Signup and view all the answers

<p>It decreases the dentinal permeability by precipitating calcium fluoride crystals</p> Signup and view all the answers

<p>To cause coagulation of proteins inside the dentinal tubules</p> Signup and view all the answers

<p>Increases their permeability</p> Signup and view all the answers

<p>Pulp becomes necrotic</p> Signup and view all the answers

<p>To prevent thermal irritation</p> Signup and view all the answers

<p>It decreases salivary flow</p> Signup and view all the answers

<p>To remove the smear layer from the dentin</p> Signup and view all the answers

<p>The superficial loss of dental hard tissue due to chemical process not involving bacteria</p> Signup and view all the answers

<p>Gaseous form in heavily polluted areas</p> Signup and view all the answers

<p>It accelerates the loss of tooth structure due to chemical attack</p> Signup and view all the answers

<p>Gastric acid</p> Signup and view all the answers

<p>It causes the erosion of the lingual surface of the upper teeth</p> Signup and view all the answers

<p>It causes irritation of the pulp tissue</p> Signup and view all the answers

<p>A rounded, cupped-out defect</p> Signup and view all the answers

<p>Abnormal tooth surface loss due to direct frictional forces</p> Signup and view all the answers

<p>Sharp wedge-shaped notch in the gingival portion of the facial aspect of teeth</p> Signup and view all the answers

<p>Attrition exceeding the rate of deposition of reparative dentin</p> Signup and view all the answers

<p>To achieve effective treatment</p> Signup and view all the answers

<p>Dehydration of dentine and aspiration of moisture through dentinal tubules</p> Signup and view all the answers

<p>By applying topical fluoride, fluoride rinse, dentinal bonding agents, or restoration</p> Signup and view all the answers

<p>To facilitate hemostasis and dry the area</p> Signup and view all the answers

<p>Pure calcium hydroxide causes tissue necrosis, while Dycal does not</p> Signup and view all the answers

<p>To preserve the vitality of the remaining radicular portion</p> Signup and view all the answers

<p>For emergency relief of symptoms</p> Signup and view all the answers

<p>To preserve the vitality of the remaining radicular portion</p> Signup and view all the answers

<p>Apply hard-setting calcium hydroxide liner such as Dycal</p> Signup and view all the answers

<p>To facilitate the formation of reparative dentin and maintain the vital pulp</p> Signup and view all the answers

<p>Disinfecting the cavity with chlorhexidine and gently rinsing with anesthetic or sterile saline</p> Signup and view all the answers

<p>To facilitate the formation of reparative dentin</p> Signup and view all the answers

<p>It provides a better seal and protects the calcium hydroxide dressing</p> Signup and view all the answers

<p>Pulp tissue jeopardized by acute inflammation</p> Signup and view all the answers

<p>Sealing the cavity preparation with a dentin/enamel bonding system</p> Signup and view all the answers

<p>To expose healthy coronal pulp tissue</p> Signup and view all the answers

<p>Because it may not be necessary if the final restoration maintains a seal</p> Signup and view all the answers

<p>To preserve the remaining coronal and radicular pulp tissues</p> Signup and view all the answers

<p>It prevents the need for re-entry</p> Signup and view all the answers

<p>Pulp exposure</p> Signup and view all the answers

<p>Both are considered comparable procedures</p> Signup and view all the answers