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HOTTEL EFDA FINAL EXAM NEWEST 2025/2026 TEST
BANK| COMPLETE 500 REAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
GRADED A+| HOTTEL EFDA CERTIFICATION EXAM
PREP 2025 (BRAND NEW!!)
actavation .....ANSWER..... Movement of instrument
Adaption .....ANSWER..... Relationship between working end of
instrument and tooth
Finger used for finger rest .....ANSWER..... Third finger
What is key to rubber dam stabilization .....ANSWER..... Rubber
dam clamp
The winged clamp allows? .....ANSWER..... Rubber dam to be
attached to the clamp prior to placing
The jaw of the rubber dam clamp does what? .....ANSWER.....
Extends to fit over tooth
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The bow of the dental dam clamp should be placed
.....ANSWER..... Distal and occlusal to the clamped tooth
Size of rubber dam hole for mandibular and Max. Laterals
.....ANSWER..... Size small 2
Size of rubber dam hole for molars .....ANSWER..... Size Large 5
For class V restorations, displace rubber dam hole
facially/lingually how many mm? .....ANSWER..... 3-6
Size of rubber dam hole for premolars, canines, and max.
Central incisors .....ANSWER..... Size med 3
Be sure the gingiva is retracted ? mm below the proposed
gingival margin of the prep .....ANSWER..... 0.5-1mm
Does Varnish or calcium hydroxide come first .....ANSWER..... CH
Cavity varnishes are? .....ANSWER..... Sealers
Minimal depth restoration extends .....ANSWER..... 0.5-1.5mm
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Second type cavity prep depth .....ANSWER..... 1mm into dentil
but more than 0.5mm from pulp
Thickness of calcium hydroxide when placed .....ANSWER.....
About 0.25 to 0.5mm
CH can be placed on enamel. T or F .....ANSWER..... False, it
cannot be placed on enamel
Break down of amalgam, in order .....ANSWER..... Silver, copper,
tin and zinc
Percentage of silver .....ANSWER..... 41-71
Percentage of copper .....ANSWER..... Low less than 9
High is 12-30
Percentage of tin .....ANSWER..... 15-30
Percentage of zinc .....ANSWER..... 0-1%
The combination of what results in Gamma II .....ANSWER.....
Mercury and Tin
HOTTEL EFDA FINAL EXAM NEWEST 2025/2026 TEST
BANK| COMPLETE 500 REAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
GRADED A+| HOTTEL EFDA CERTIFICATION EXAM
PREP 2025 (BRAND NEW!!)
actavation .....ANSWER..... Movement of instrument
Adaption .....ANSWER..... Relationship between working end of
instrument and tooth
Finger used for finger rest .....ANSWER..... Third finger
What is key to rubber dam stabilization .....ANSWER..... Rubber
dam clamp
The winged clamp allows? .....ANSWER..... Rubber dam to be
attached to the clamp prior to placing
The jaw of the rubber dam clamp does what? .....ANSWER.....
Extends to fit over tooth
,Page 2 of 27
The bow of the dental dam clamp should be placed
.....ANSWER..... Distal and occlusal to the clamped tooth
Size of rubber dam hole for mandibular and Max. Laterals
.....ANSWER..... Size small 2
Size of rubber dam hole for molars .....ANSWER..... Size Large 5
For class V restorations, displace rubber dam hole
facially/lingually how many mm? .....ANSWER..... 3-6
Size of rubber dam hole for premolars, canines, and max.
Central incisors .....ANSWER..... Size med 3
Be sure the gingiva is retracted ? mm below the proposed
gingival margin of the prep .....ANSWER..... 0.5-1mm
Does Varnish or calcium hydroxide come first .....ANSWER..... CH
Cavity varnishes are? .....ANSWER..... Sealers
Minimal depth restoration extends .....ANSWER..... 0.5-1.5mm
, Page 3 of 27
Second type cavity prep depth .....ANSWER..... 1mm into dentil
but more than 0.5mm from pulp
Thickness of calcium hydroxide when placed .....ANSWER.....
About 0.25 to 0.5mm
CH can be placed on enamel. T or F .....ANSWER..... False, it
cannot be placed on enamel
Break down of amalgam, in order .....ANSWER..... Silver, copper,
tin and zinc
Percentage of silver .....ANSWER..... 41-71
Percentage of copper .....ANSWER..... Low less than 9
High is 12-30
Percentage of tin .....ANSWER..... 15-30
Percentage of zinc .....ANSWER..... 0-1%
The combination of what results in Gamma II .....ANSWER.....
Mercury and Tin
