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Perio radiograph
| Question | Answer |
|---|---|
| Is pulp radiolucent or radiopaque | Radiolucent |
| Is the pdl space radiolucent or radiopaque | Radiolucent |
| Is a periapical abscess radiolucent or radiopaque | Radiolucent |
| Is bone marrow space radiolucent or radiopaque | Radiolucent |
| Is bone loss and defects radiolucent or radiopaque | Radiolucent |
| Are metals and amalgams radiolucent or radiopaque | Radiopaque |
| Is enamel radiolucent or radiopaque | Radiopaque |
| Is Dentin radiolucent or radiopaque | Radiopaque |
| Is compact and cortical bone radiolucent or radiopaque | Radiopaque |
| What are the limitations for xray perio assessment | 2D, buccal bone hides bone loss on lingual, palatal root makes furcation detection difficult, can't see non calcified tissues |
| Anatomy visible on radipgraphs | Alveolar bone, pdl space, cementum |
| Radiograph shows disease activity | False |
| What are the 3 signs of early bone changes on a radiograph | Fuzziness, widening pdl, radiolucent line |
| What is triangulation | Widening of pdl space on mesial/distal of interdental crest caused by bone resorption (funneling) |
| Radiographs are useful for all except | Perio pockets |
| Why do finger like projections that extend from the crystal bone into the interdental bone happen? | Represent reduction of mineralized tissue adjacent to blood vessels channels in alveolar bone loss |
| L.A.S.E.R | Light, amplification, stimulated, emmision of, radiation |
| Characteristics of white visible light | Multiple wave lengtgslengths, non directional, non-focused |
| Wavelengths can be focused, very directional | Collimated |
| Very precise color or wavelength | Monochromatic |
| Wavelengths are superimposed on one another synchronized in phrase | Coherency |
| What is a wavelength | The distance from wave crest to wave crest |
| In general the properties of lasers light are much different from those of natural light. Which of the following is false | Laser light is usually divergent |
| Depending on the specific type of laser, laser energy is emitted in very specific portions of the electromagnetic spectrum . Where in the spectrum do most lasers operate | In both the visible and infrared portions |
| What is a photon | The elemental quantity, or quantum of radiant energy |
| When using a laser power density is | Measure in watts/cm2 |
| Laser power is expressed as | Watts |
| Dental laser beams are conducted by all of the following except | Platinum cable |
| Assuming both beams have equal power, the smaller fiber Will have | High power density |
| Which of the following are examples of ionizing radiation | Xrays, gamma rays, ultra violet rays |
| Diode lasers seem what tissue targets | Melanin and hemoglobin |
| Optical pumping is used to achieve which step is laser creation | Emission of photons |
| What is the most important effect of lasers on tissues | Absorption |
| Which is better pulse or continuous | Different settings for different applications |
| The emission mode that has true pulsed bursts of laser energy is | Free running pulsed |
| A laser running in continuous modes peak power is | The same as it's average power |
| Thermal relaxation refers to | The tissues ability to absorb and dissipate hear to help minimize thermal damage with pulsed laser usage |
| The ability to speed healing, increase circulation, reduce edema, minimize pain | Photobiomodulation/biostimulation |
| As temperature rises, various effects occur. At approximately 100C , which of the following effects occur | Tissue vaporization |
| Fluorescence of tissue stimulated by laser light is mostly important in | Caries diagnosis |
| The primary biological effect of lasers when performing soft tissue procedure is | Photothermal |
| What are erbium lasers good for | Prevent osteocronosis |
| The disease operates at | 810nm |
| The diodes laser wavelength visible to the eye | False |
| Erbium lasers | Are hard and soft tissue capable |
| When cutting hard tissue with an erbium laser | Minimal thermal effects are observed in adjacent tissue when use properly |
| Nd yag lasers | Are 1064 nm wavelength |
| Diode lasers | Use a semiconductor stimulated by electricity to produce laser light |
| Water is the primary chromophore for diode laser wavelengths, diode lasers run in free running pulsed mode | Both are false |
| Which is not a desired effect of laser interaction on soft tissue | Edema |
| Which of the following do you accomplish with biostimulation | All of above |
| Reasons to perform laser bacterial reduction are | All of above |
| Which of the following is not critical before performing any laser treatment on a patient |
Created by:
Aisha.rios