procedures equipment instruments materials for restorative treatment Flashcards
what is Irreversible Hydrocolloid?
alginate
what is the primary function of a lining material?
to reduce post operative sensitivity
what is an overactive thyroid gland which tends to increase the overall metabolic rate of a patient, including the heart rate?
hyperthyroidism
what are the three commonly used temporary filling materials used?
zinc oxide and eugenol cement
Zinc phosphate cement
zinc polycarboxylate cement
when is amalgam used?
in posterior teeth where strength and longevity are more important than aesthetics
when is composite used?
for anterior teeth for aesthetics
what is the new generation composite being used for?
posterior restorations
why is glass ionomer used for children?
because it releases fluoride
what does a class I cavity involve?
a single surface in a pit or fissure such as (posterior)
- occlusal
- buccal
- lingual
what does a class II cavity involve?
at least two surfaces of a posterior tooth and the occlusal surface of a molar or pre molar
- MO in a pre molar
- MOD in molar
what does a class III cavity involve?
the mesial or distal surface of an incisor or canine
what are class IV cavities?
same as class III but extend to involve the incised edge
what are class V cavities?
involve the cervical margin of any tooth.
what is removed before a filling is placed?
all plaque biofilm and soft carious dentine
what will increase or decrease the longevity of the filling?
plaque biofilm control and diet
what is a right angle probe used for? (3)
- feel cavity margins
- feel softened dentine within the cavity
- detect overhangs
what are excavators used for? (1)
used to scoop out softened dentine
what is an amalgam plugger used for? (2)
- push filling materials into the cavity
- forcing excess mercury to surface for removal during carving
what are burnishers used for?(1)
- adapt cavity margins fully against the cavity margins to prevent leakage
what is a flat plastic used for? (2)
- remove excess filling material
- create a shaped surface so its not a food trap
what are college tweezers used for?
- to pick up or hold any items
what is a gingival margin trimmer used for?
- to trim the margin of the cavity
- burs are used
what is an enamel chisel used for?
- remove any unsupported enamel from cavity edges
what are lining materials used for?
- to protect the pulp against chemical irritation
what is an example of a common lining material?
-calcium hydroxide liners