Back to marketplace

Amalgam

No description yet. This curated deck is ready for daily study.

Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

what type of material is amalgam?

Back (Answer)

an alloy

#2
Front (Question)

how can amalgam be classified?

Back (Answer)

by its: • composition • particle shape & size

#3
Front (Question)

what are the different compositions of amalgam?

Back (Answer)

• traditional - copper enriched

#4
Front (Question)

what materials is amalgam composed of?

Back (Answer)

• Ag (silver) • Sn (tin) • Cu (copper) • Zn (zinc) • Hg (mercury)

#5
Front (Question)

what makes up the powder aspect of amalgam?

Back (Answer)

• silver-tin (Ag3Sn) • copper • zinc • mercury in powder

#6
Front (Question)

what is the liquid aspect of amalgam composed of?

Back (Answer)

Hg (mercury)

#7
Front (Question)

what is the function of the silver-tin compound found in amalgam?

Back (Answer)

it reacts with the Hg liquid to form amalgam

#8
Front (Question)

what is the function of copper in the makeup of amalgam?

Back (Answer)

increases strength and hardness of material

#9
Front (Question)

how can the mercury found in amalgam be described?

Back (Answer)

very pure (triple distilled)

#10
Front (Question)

what are the different particle types that amalgam can be composed of?

Back (Answer)

• Iathe cut - Spherical, spheroidal

#11
Front (Question)

what is the setting reaction of amalgam?

Back (Answer)

Ag3Sn + Hg —> Ag3Sn + Ag2Hg3 + Sn7Hg9

#12
Front (Question)

what is the gamma phase of the amalgam setting reaction?

Back (Answer)

Ag3Sn

#13
Front (Question)

what is the gamma 2 phase of the amalgam setting reaction?

Back (Answer)

Ag2Hg3

#14
Front (Question)

what is the gamma-2 phase of the amalgam setting reaction?

Back (Answer)

Sn7Hg9 (tin-mercury)

#15
Front (Question)

what are the characteristics of the gamma phase of the amalgam setting reaction?

Back (Answer)

• good strength - good corrosion resistance

#16
Front (Question)

what are the characteristics of the gamma-1 phase of the amalgam setting reaction?

Back (Answer)

• good corrosion resistance

#17
Front (Question)

what are the characteristics of the gamma-2 phase of amalgam?

Back (Answer)

• weak and poor corrosion resistance

#18
Front (Question)

what is the average tensile strength of amalgam?

Back (Answer)

60MPa

#19
Front (Question)

what amalgam phase has the highest tensile strength?

Back (Answer)

gamma phase

#20
Front (Question)

what amalgam phase has the lowest tensile strength?

Back (Answer)

gamma-2 phase

#21
Front (Question)

why is zinc not commonly used in amalgams anymore?

Back (Answer)

• zinc can interact with saliva/blood • bubbles of H2 formed within amalgam • pressure buildup causes expansion (downward pressure causes pulpal pain, upwards pressure causes restoration to sit proud of surface)

#22
Front (Question)

what handling factors may affect the properties of amalgam?

Back (Answer)

• proportioning and titration • condensation/how well it is packed into cavity • carving and polishing

#23
Front (Question)

what are the amalgam properties dependant on?

Back (Answer)

• handling factors • cavity design • affected by corrosion

#24
Front (Question)

what type of amalgam particles are better? why is this?

Back (Answer)

spherical particles • less Hg required • higher tensile strength • higher early compressive strength • less sensitive to condensation • easier to carve