restorative Flashcards
aim of restorative dentistry
restore the tooth or teeth to their normal size, shape and function whilst protecting the pulp as much as possible
1800s an American dentist called G V Black classification 1
single surface in a pit or fissure
class 2
at least two surfaces of molars and pre-molar teeth
class 3
involving the mesial or distal of an incisor or canine
class 4
same as Class III but involve the incisal edge on the affected side
class 5
the cervical margin of any tooth, usually cause by toothbrush abrasion
dental mirror
To reflect light onto tooth/teeth, to retract and protect soft tissues and to aid the clinician’s visibility
probe
To detect overhanging restorations, feel softened dentine within a cavity and to feel cavity margins
college tweezer
To pick up items used throughout the procedure for example cotton pledgets, cotton wool rolls and wedges
excavator
Spoon shaped instrument used to scoop out softened dentine
amalgam plugger
To push filling materials into the prepared cavities ensuring there are no air spaces. During the placement of amalgam fillings this instrument forces excess mercury to the surface for removal during the carving process
flat plastic
To remove excess filling material from the restoration surface and to create a surface in which food particles will flow off rather than becoming lodged in the restoration margins
burnisher
To press the restoration margins against the cavity edges ensuring there is no chance of leakage
wards carver
To shape and carve amalgam and composite restorations. This instrument looks like a flat plastic but with more bulbous ends
high speed hand pieces
compressed air (500,000 revolutions per minute), friction grip
slow speed hand pieces
40,000 revolutions per minute, latch key or friction grip
straight hand piece
type of slow speed handpiece often used for adjusting dentures and orthodontic appliances. These handpieces take long straight burs with friction grip shanks
Burs for slow speed handpieces
made from steel or tungsten carbide and they are used for removing caries and cutting dentine. Slow speed burs are not used to cut enamel.
Burs for high speed handpieces
diamond or tungsten carbide and are used to cut enamel, dentine and remove old fillings.
Burs for straight handpieces
have long, plain friction grip shanks and are used for adjusting dentures and orthodontic appliances
Pear shaped burs
used to shape and smooth cavities
Fissure burs
Used to shape and outline cavities
Round burs
Used to gain access to cavities, when used with a slow speed handpiece they are used to remove caries.
material for restoration
either Pre-constructed (inlay…) or plastic
