Dental Material Exam 2 2025/2026 Exam
Questions and Answers 100%
Guaranteed Success | Already Rated A+
Tarnish-surface discoloration caused from what? - 🧠 ANSWER ✔✔Contact
with oxygen, chlorides, and sulfides in the mouth
What does corrosion-chemical deterioration of the metal cause? - 🧠
ANSWER ✔✔Weakens the amalgam over time, can stain surrounding
tooth structure as corrosion products enter the tubules and can lead to
deterioration of the margins
Rationale for finishing and polishing amalgams - 🧠 ANSWER ✔✔-Removes
tarnish
-Removes corrosion
-Smooth the amalgam
-Decreases plaque retention
-Removes excess amalgam
-Increases patient comfort
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
,-Improves appearance
-Eliminates premature contacts
-Improves functional life of the restoration
When can amalgam be polished? - 🧠 ANSWER ✔✔Conventional Amalgam:
24 hours to finish and polish amalgam
High Copper Amalgam: Can be polished as early as 8 minutes, but most
researchers say wait 30 minutes
What is flash? - 🧠 ANSWER ✔✔Thin layer of amalgam that extends beyond
the cavosurface margin
What's important to do with occlusal contacts? - 🧠 ANSWER ✔✔-Check for
high spots
-Use articulating paper
-Look for shiny wear facets
-Look at the tooth anatomy
--Bring it back to original form
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
,Indications for amalgam finishing and polishing - 🧠 ANSWER ✔✔-Areas of
flash
-Indistinct anatomy
-Bad contact areas
-Rough pitted amalgams
-Tarnished or corroded amalgams
-High areas on the occlusal surface of the amalgam
Contraindications for amalgam finishing and polishing - 🧠 ANSWER ✔✔-
Open margins of restorations
-Open contacts
-Fractured restoration
-Large overhangs
-Recurrent decay
-Excessively deep occlusal anatomy
-Restorations in teeth scheduled to be extracted or crowned
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
, --all need to be replaced (excluding last one)
What can amalgam finishing and polishing be considered? - 🧠 ANSWER
✔✔As two separate procedure
or
TWO STEPS IN A SINGLE PROCESS
Difference between finishing and polishing - 🧠 ANSWER ✔✔Finishing-
marginal irregularities are removed, and all areas of roughness are
smoothed
Polishing- surface is smoothed to a high luster by using a sequence of
abrasives
What will finishing an amalgam restoration produce? - 🧠 ANSWER
✔✔marginal adaptation consistent with the cavity outline
Armamentarium for finishing amalgam restorations - 🧠 ANSWER ✔✔-Low
speed contra-angle
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
4
Questions and Answers 100%
Guaranteed Success | Already Rated A+
Tarnish-surface discoloration caused from what? - 🧠 ANSWER ✔✔Contact
with oxygen, chlorides, and sulfides in the mouth
What does corrosion-chemical deterioration of the metal cause? - 🧠
ANSWER ✔✔Weakens the amalgam over time, can stain surrounding
tooth structure as corrosion products enter the tubules and can lead to
deterioration of the margins
Rationale for finishing and polishing amalgams - 🧠 ANSWER ✔✔-Removes
tarnish
-Removes corrosion
-Smooth the amalgam
-Decreases plaque retention
-Removes excess amalgam
-Increases patient comfort
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
,-Improves appearance
-Eliminates premature contacts
-Improves functional life of the restoration
When can amalgam be polished? - 🧠 ANSWER ✔✔Conventional Amalgam:
24 hours to finish and polish amalgam
High Copper Amalgam: Can be polished as early as 8 minutes, but most
researchers say wait 30 minutes
What is flash? - 🧠 ANSWER ✔✔Thin layer of amalgam that extends beyond
the cavosurface margin
What's important to do with occlusal contacts? - 🧠 ANSWER ✔✔-Check for
high spots
-Use articulating paper
-Look for shiny wear facets
-Look at the tooth anatomy
--Bring it back to original form
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
,Indications for amalgam finishing and polishing - 🧠 ANSWER ✔✔-Areas of
flash
-Indistinct anatomy
-Bad contact areas
-Rough pitted amalgams
-Tarnished or corroded amalgams
-High areas on the occlusal surface of the amalgam
Contraindications for amalgam finishing and polishing - 🧠 ANSWER ✔✔-
Open margins of restorations
-Open contacts
-Fractured restoration
-Large overhangs
-Recurrent decay
-Excessively deep occlusal anatomy
-Restorations in teeth scheduled to be extracted or crowned
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
, --all need to be replaced (excluding last one)
What can amalgam finishing and polishing be considered? - 🧠 ANSWER
✔✔As two separate procedure
or
TWO STEPS IN A SINGLE PROCESS
Difference between finishing and polishing - 🧠 ANSWER ✔✔Finishing-
marginal irregularities are removed, and all areas of roughness are
smoothed
Polishing- surface is smoothed to a high luster by using a sequence of
abrasives
What will finishing an amalgam restoration produce? - 🧠 ANSWER
✔✔marginal adaptation consistent with the cavity outline
Armamentarium for finishing amalgam restorations - 🧠 ANSWER ✔✔-Low
speed contra-angle
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
4
