CONDENSERS. –
Amalgam condensers, often called pluggers
, are instruments used to condense or pack the amalgam filling materials into the cavity preparation. The hammer-like working end is large enough to compress the soft amalgam without sinking into it. Condensers come in single- and double-ended designs.
Which instruments are used in cavity preparation?
- Features. Has straight shank and bevel on one side only. …
- Gingival marginal trimmer (GMT) It is a Enamel hatchet instrument with curved blade. …
- A. Ordinary hatchet: …
- Uses of Hoe: …
- D. …
- A. …
- Uses:
Which restorative instrument is used to transport freshly mixed amalgam to the cavity preparation?
Restorative dental hand instruments include the
amalgam carrier
, burnisher, condensers, composite placement instruments, carvers, and Woodsen. Amalgam Carrier – used to carry an increment of amalgam directly into the prepared tooth. Burnisher – used to smooth the surface of a freshly placed amalgam restoration.
What instrument is most commonly used to carve excess amalgam Interproximally?
| A B | instrument used to carve the interproximal portion of the tooth preparation hollenbach | this instrument is used to pack amalgam in the tooth preparation condensor | what kind of instrument is a discoid-cleiod carver |
|---|
What instrument is used to remove excess amalgam from the interproximal area and reduce the occlusion?
6- Use
a discoid or large spoon excavator
to remove excess amalgam and/or blend the proximal cavosurface margin into the occlusal CSM. Part of the blade rests on the adjacent enamel.
Which handpiece is available in speeds between 10000 and 30000 rpm?
| What is the definition of the term Mandrel? A metal shaft on which a sandpaper disc or abrasive material is mounted | The low speed handpiece is available in speed ranging from 10,000 RPM to: 30,000 RPM | Which handpiece is used by the dentist in every Restorative procedure? High speed handpiece |
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What is Cavosurface margin?
1. Cavosurface (margin):
it’s the junction between the wall of the cavity and the surface of the tooth
. 2. Bevel: is the inclination that one line or surface makes with another when not at right angles .
How do you prepare a Class 2 cavity?
- Obtain proper isolation of the tooth (e.g. rubber dam, isovac/isolite, etc.)
- Place the bur in the most mesial portion of the preparation outline, orient the bur 5o mesially, and brush upward to create occlusal divergence at the proximal wall of the dovetail.
What instrument has a four number formula?
| Question Answer | What instruments have four numbers? Angle formers and GMT’s . | What is the end of the working end called if it is blunt, serrated, and smooth? NIb. | Going to be flat, curved, rounded, or cutting edge? Blade. |
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What instrument is used to place and remove items from the oral cavity?
| Instrument Use | ScissorsStraight (A); curved (B) Used for cutting, shaping, and trimming items in the dental procedure | 110 pliers Carry, place, and remove items in the mouth | Matrix retainer (A) and band (B) Provides an artificial wall around the tooth for placing dental materials in posterior teeth |
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What Kind of bur system does the high speed handpiece use?
Diamond burs
are most commonly used with high speed handpieces, meaning they are most commonly available as a friction grip shank. Diamond is the hardest material available and is used to grind away tooth tissue, usually enamel. The grinding motion of a diamond bur leaves a rough finish.
When should a preset sterile tray be taken to the treatment area?
A dental practice will have sufficient types of cassettes for most common procedures to allow adequate sterilization and preparation time before the tray is needed. Sterile trays or cassettes are taken into the treatment area as
part of the advanced preparation of the treatment room before the patient is seated
.
What are the four uses of the mouth mirror?
What are the four uses of the mouth mirror?
indirect vision, light reflection, retraction, and tissue protection
.
What happens if dental amalgam is over Triturated?
*over triturated amalgam
exhibits less setting expansion or insignificant contraction
. and too plastic or non plastic mix must be discarded.
How do you test for occlusion?
Place the
articulating paper on both sides of the mouth
and say to the patient, “Bite together tapping your teeth twice up and down, tap, tap.” If they start grinding, ask the patient not to grind but instead tap up and down, with all teeth together.
Why do dentists use articulating?
Articulating paper is commonly used by the dental community
to identify contact points between the maxillary and mandibular teeth during all forms of natural tooth occlusal adjustments and dental prosthesis insertions
.
