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Coupland's Elevators. Elevators (also known as luxators) are instruments used in dental extractions. They may be used to loosen teeth prior to forceps extraction, to remove roots or impacted teeth, when teeth are compromised and susceptible to fracture or when they are malpositioned and cannot be reached with forceps. [1]
Coupland's elevators (also known as chisels) [1] [2] are instruments commonly used for dental extraction. They are used in sets of three each of increasing size and are used to split multi-rooted teeth and are inserted between the bone and tooth roots and rotated to elevate them out of the sockets. [ 3 ]
With pelicans, their sharp talons were used to be placed down on the inside of the mouth near the gums while the elevator helped pull the tooth out of its socket. Then, a pair of pincers would do the rest of the job, wiggling the tooth out of the gum until the extraction was complete. [8]
Typically the tooth is lifted using an elevator, and using dental forceps, specific tooth movements are performed (e.g. rocking the tooth back and forth) expanding the tooth socket. Once the periodontal ligament is broken and the supporting alveolar bone has been adequately widened the tooth can be removed.
llustration demonstrating the use of the dental key for extracting teeth. The dental key is an instrument that was used in dentistry to extract diseased teeth.Before the era of antibiotics, dental extraction was often the method of choice to treat dental infections, and extraction instruments date back several centuries.
Air turbine used in a dental handpiece Correlation between rotational speed and torque Correlation between rotational speed and turbine output power. The turbine is powered by compressed air between 35 and 61 pounds per square inch (~2,4 to 4,2 bar), [1] [2] which passes up the centre of the instrument and rotates a Pelton wheel in the head of the handpiece.
Instrument Uses Head Mirror with head band: to focus light into the cavity under inspection; mirror is concave and is used with a Chiron lamp to produce a parallel beam of light; doctor views through the hole (average diameter of mirror is 3 & 1/2" & that of hole is 1/4") Head mounted lights with head band: to focus light into the cavity under ...
A slot is cut using the side of a long tapered bur, normally on the buccal surface of the crown, all the way into the cement lute. A flat plastic instrument, straight Warrick James, Couplands elevators or dedicated systems such as the WamKey, is inserted into the slot created to wedge the crown apart from the tooth. [57]
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