restorative

Question 1

aim of restorative dentistry

Answer 1

restore the tooth or teeth to their normal size, shape and function whilst protecting the pulp as much as possible

Question 2

1800s an American dentist called G V Black classification 1

Answer 2

single surface in a pit or fissure

Question 3

class 2

Answer 3

at least two surfaces of molars and pre-molar teeth

Question 4

class 3

Answer 4

involving the mesial or distal of an incisor or canine

Question 5

class 4

Answer 5

same as Class III but involve the incisal edge on the affected side

Question 6

class 5

Answer 6

the cervical margin of any tooth, usually cause by toothbrush abrasion

Question 7

dental mirror

Answer 7

To reflect light onto tooth/teeth, to retract and protect soft tissues and to aid the clinician’s visibility

Question 8

probe

Answer 8

To detect overhanging restorations, feel softened dentine within a cavity and to feel cavity margins

Question 9

college tweezer

Answer 9

To pick up items used throughout the procedure for example cotton pledgets, cotton wool rolls and wedges

Question 10

excavator

Answer 10

Spoon shaped instrument used to scoop out softened dentine

Question 11

amalgam plugger

Answer 11

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

Question 12

flat plastic

Answer 12

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

Question 13

burnisher

Answer 13

To press the restoration margins against the cavity edges ensuring there is no chance of leakage

Question 14

wards carver

Answer 14

To shape and carve amalgam and composite restorations. This instrument looks like a flat plastic but with more bulbous ends

Question 15

high speed hand pieces

Answer 15

compressed air (500,000 revolutions per minute), friction grip

Question 16

slow speed hand pieces

Answer 16

40,000 revolutions per minute, latch key or friction grip

Question 17

straight hand piece

Answer 17

type of slow speed handpiece often used for adjusting dentures and orthodontic appliances. These handpieces take long straight burs with friction grip shanks

Question 18

Burs for slow speed handpieces

Answer 18

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.

Question 19

Burs for high speed handpieces

Answer 19

diamond or tungsten carbide and are used to cut enamel, dentine and remove old fillings.

Question 20

Burs for straight handpieces

Answer 20

have long, plain friction grip shanks and are used for adjusting dentures and orthodontic appliances

Question 21

Pear shaped burs

Answer 21

used to shape and smooth cavities

Question 22

Fissure burs

Answer 22

Used to shape and outline cavities

Question 23

Round burs

Answer 23

Used to gain access to cavities, when used with a slow speed handpiece they are used to remove caries.

Question 24

material for restoration

Answer 24

either Pre-constructed (inlay…) or plastic