Transcript English for Dental Technology

English for Dental Technology
Kuo-Lung Tung / Assistant
Outline
• Introduce to Dental Technology and Technician
• Equipment
• Materials
Other names of technician
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apprentice dental prosthesis maker
apprentice dental technician
bench moulder, dentures
CDT (certified dental technician)
ceramic caster, dentures
ceramic denture caster
ceramic denture mechanic
ceramic denture mechanic-moulder
ceramic denture moulder
ceramic moulder, dentures
certified dental technician
crown and bridge dental technician
dental ceramic caster
dental ceramic moulder
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dental ceramist
dental laboratory assistant
dental laboratory bench worker
dental laboratory technician
dental laboratory technician assistant
dental prosthesis maker
dental technician
dental technician apprentice
dental technician supervisor
dental technologist
denture bench moulder
denture finisher
denture framework finisher
denture packer
denture setter
denture set-up man/woman
denture trimmer-polisher
Other names of technician
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denture wax pattern former
denture wax pattern former – metal
framework
framework finisher, dentures
metal dental technician
occlusion rim former – dentures
orthodontic band maker
orthodontic dental technician
orthodontic prosthesis maker
orthodontic technician
plaster moulder – dentures
RDT (registered dental technician)
RDT (registered dental technologist)
registered dental technician
registered dental technologist
set-up man/woman, dentures
supervisor, dental technician
technician, dental laboratory
Job Description
• Dental technicians, manufacture dental
prosthetics including bridges, crowns and
dentures according to specifications
dentists send to them.
• They work in specialties that
include orthodontic appliances, crowns and
bridges, complete dentures, partial dentures
or ceramics. Dental technicians are also
called dental laboratory technicians.
Different Types of Dental
Restorations
• 1. Sealants-white filling materials in a "flowable"
form. Used to fill the decay-susceptible grooves of
the back teeth (usually children 6-18 years) as a
preventative procedure.
2. Fillings-composite (white) filling materials. Placed
directly into the prepared tooth. Used where the
existing fillings or areas of decay are small enough
that the remaining tooth structure has not been
overly weakened.
Different Types of Dental
Restorations
• 3. Inlays-used in similar situations as fillings except a
pre-made piece of ceramic material is bonded into
the tooth. This results in superior physical properties,
possibly providing a lifespan of 2 to 3 times longer
than a composite filling. Inlays are a top-quality
alternative to the composite filling. Traditionally gold
alloy has been used for inlays, but now ceramics are
excellent.
Different Types of Dental
Restorations
• 4. Onlays-used in situations where the tooth is
fractured or has been severely weakened, the onlay
is similar to the inlay described above except that the
ceramic covers the entire or most of the biting
surface. Unlike a crown, it does not cover the entire
visible tooth structure, so there is no need to grind
away all sides of the tooth unless there is a specific
reason (like decay.)
Different Types of Dental
Restorations
• 5. Crowns ("Cap")- A crown, the largest tooth
restoration, sometimes cannot be avoided. It covers
all sides of the tooth as well as the end. It is used
when there is limited tooth structure left, when an
existing crown must be replaced, or when the tooth
is an "anchor" tooth for a fixed bridge. In cases
where it is impossible to get proper moisture control)
below the gum line or near the back of the mouth), a
cemented crown may substitute for a bonded one.
Different Types of Dental
Restorations
• 6. Veneers-thin porcelain facings that cover the front
side of teeth. Used cosmetically to change the length,
color and shape of teeth.
7. Bridges-used to replace missing teeth when
sufficient "anchor" teeth are available on each side
of the gap. Numerous systems are available,
including fiber-reinforced ceramics, Zirconium-based
ceramics and porcelain fused to metal bridges.
Different Types of Dental
Restorations
• 8. Implants-Titanium posts surgically placed into the
jawbone. Implants are used to support a dental
prosthesis (from single crowns to full denture) once
the bone grows around the post (usually three
months after placement.)
Different Types of Dental
Restorations
• 9. Removable Partial Dentures-used to replace missing teeth
when insufficient teeth remain to support fixed bridges or a
patient does not test well for bridge materials. Partial
dentures can be metal or acrylic-based. Acrylic-based partials
are bulkier and do not stay in place as well as metal partials.
Metal partials can be made with precision attachments that
eliminate the use of unsightly metal clasps.
10. Removable Full Denture-used when no teeth remain.
Caution" most, but not all, acrylic bases contain cadmium, a
toxic substance, as a color stabilizer.
What is a Partial Denture?
• What is a Denture? Partial Denture? Full
Denture? Removable plate? Removable bridge?
A denture is a removable option for replacing missing teeth. It
can be a partial denture meaning you have some natural teeth
remaining or a complete denture meaning you have no teeth
in that jaw i.e. you are edentulous.
Partial dentures is an abbreviation for 'removable partial
dentures' or RPD for short, (sometimes called plates instead
of dentures). I guess a 'fixed partial denture' would be
a dental bridge, but I can’t say I have ever heard it call that.
• I have also heard partial dentures referred to as ‘removable
bridges’; perhaps as an attempt to get away from the stigma
of wearing a ‘denture’ to replace your missing teeth.
The word ‘denture’ conjures up the thought of your granny
and her teeth in a glass of water by the side of the bed. Whilst
with complete dentures, this image is not too far from reality,
partial dentures are quite different. They can replace just a
single tooth or nearly every tooth and every combination inbetween. They have many different applications and need to
be appreciated for what they are- an economical way to give
you back your smile and teeth to eat with.
• You would be surprised at the number of
people who are walking around with them;
including many in their twenties who have
suffered tooth loss for one reason or another.
Well made partial dentures are very discreet
and the non- dentist in a normal social
situation would most likely have no clue that
they were being worn.
Main duties
Dental technologists, technicians and laboratory assistants perform some or all of the following
duties:
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Design, fabricate or repair dental devices including full or partial dentures, orthodontic
appliances, crowns, bridges, inlays, onlays, clasps and bands, and implants
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Prepare plaster models and molds from dental impressions
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Prepare wax bite-blocks and impression trays
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Cast gold or metal alloys for bridges and denture bases
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Pack plastic material in molds to form full or partial dentures
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Mold wax over denture set-up to form full contours of artificial gums
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Make orthodontic bands from gold, silver, stainless steel or other metals
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Finish metal framework of dentures and polish and buff dentures to obtain natural finish
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May consult with dentists or other specialists on problematic dental cases
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May train and supervise other dental technicians and dental laboratory assistants in
fabricating dentures and other dental devices
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May perform administrative functions for the dental laboratory.