Parcial 2 endo II

Question 1

One disadvantage of the sodium hypochlorite is the inability of remove inorganic tissue. Which irrigant we use on endodontics for that purpose?

Answer 1

EDTA

Question 2

Mention at least two different size of irrigation needle gauge that we could find in the market.

Answer 2

25, 28 & 30 GAUGE

Question 3

Mention in order, the color coding of the K file first series (start from the smaller)

Answer 3

1st series
1. White 15
2. Yellow 20
3. Red 25
4. Blue 30
5. Green 35
6. Black 40

Question 4

It is an agent that destroys or inhibits the activity of microorganisms that cause disease.

Answer 4

DISINFECTANT

Question 5

This kind of lasser it is commonly use for the PIPS technique

Answer 5

YAG LASER

Question 6

In this technique the coronal preparation on the canal starts with the larger Gattes Glidden

Answer 6

CROWN-DOWN TECHNIQUE

Question 7

One of the disadvantages of this technique is that its difficult to penetrate instruments into the canal

Answer 7

STEP BACK TECHNIQUE

Question 8

This is a phenomenon where the root canal system enable air trapping

Answer 8

VAPOR LOCK

Question 9

Mention at least three factors that could have and effect of sodium hypoclorhide efficacy

Answer 9

TEMPERATURE, CONCENTRATION, AGITATION & TIME OF EXPOSURE

Question 10

From which alloy are the rotatory file most commonly made for?

Answer 10

NIQUEL-TITANIUM

Question 11

If i am doing a root canal treatment with the step back technique and my master file is the 35 which would be my last file?

Answer 11

35

Question 12

This kind of hand file have a single helix teardrop cross sectional shape.

Answer 12

HEDSTROM FILES (H FILES)

Question 13

Mention 5 characteristics of an ideal irrigant

Answer 13

1. EFFECTIVE DESINFECTANT
2. NO PERIAPICAL TISSUES’ IRRITATION
3. PROLONGED MICROBIAL EFFECTS
4. DON’T INTERFERE WITH TISSUE REPAI
5. HAS LOW SURFACE TENSION
6. DON’T STAIN TEETH
7. DON’T INDUCE IMMUNE RESPONSE
8. REMOVE SMEAR LAYER
9. EASY MANIPULATION
10. ECONOMIC

Question 14

If i had a 20 k file (0.20) with .02 of taper. Which would be the diameter of the file at the 4 mm of the active part.

Answer 14

0.28

Question 15

This two files are the most commonly used for glide path

Answer 15

STAINLESS STEEL K-FILE SIZE 10 & 15

Question 16

Which is the handle color of the 110 K file?

Answer 16

RED

Question 17

Mention at least two different anatomic variations of the root canal morphology

Answer 17

CONICAL ROOTS, HAVING LATERAL CANALS, APICAL DELTAS OR FINS

Question 18

This person introduces for the first time the use of sodium hypochlorite to treat wounds.

Answer 18

HENRY DRYSDALE DAKIN

Question 19

If my agitation device reaches 21000 Hz of force it is consider an__________ movement

Answer 19

ULTRASONIC

Question 20

Which is the name that we give to the combination of mechanical preparation plus chemical disinfection

Answer 20

CHEMOMECHANICAL PREPARATION