Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Endodontics > Endo Summary > Flashcards

Endo Summary Flashcards

(46 cards)

Start Studying
1
Q

Maxillary roots+canals

A

Central 1 (1)
Lateral 1 (1)
Canine 1 (1)
1st premolar 2 (2)
2nd premolar 1(1)
First molar 3 (4)
2nd molar 3 (3)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Mandibular roots+canals

A

Central 1 (1)
Lateral 1 (1)
Canine 1 (1)
1st premolar 1 (1)
2nd premolar 1 (1)
1st molar 2-3 (3)
2nd molar 2 (3)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Endo Assessment

A

Sinus
Colour
Swelling
TTP
EPT/ECL
Mobility
Pockets
Radiographs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Endo contraindications

A

Preg 1st trimester - emergency only
CVD within last 6mths
Cancer - XLa preffered

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Endo medical indication

A

Pt on bisphosphonates currently RCT>XLa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Success rates for 1st endo to 2nd

A

90% - 1st RCT
80% - 2nd RCT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Functions of pulp

A

Nutrition, sensation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Design objects for RCT (3)

A
  1. Create a continuously tapering funnel shape
  2. Maintain apical foramen in original position
  3. Keep apical opening as small as possible
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Function of mechanical prep

A

Creates space for irrigate + shape to obturate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

NaOCl advantages

A

Antimicrobial activity
Dissolves necrotic + vital tissue
Disrupts smear layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Important factors for NaOCl (5)

A

Concentration
Volume
Contact
Mechanical agitation
Exchange

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Disadvantages of NaOCl

A

Effect on dentine
Inability to remove smear layer itself
Sodium hypo incidents - eye/fabrics
Apical extrusion –> tissue necrosis
Allergic reactions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Define the smear layer

A

Layer of organic+inorganic material found on dentinal walls after instrumentation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the disinfectant protocol (3)

A

NaOCl 3% 30ml for 10mins
17% EDTA 1 min
NaOCL final rinse

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Function of EDTA

A

Chelating agent removes smear layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

CHX function

A

Antibacterial but unable to disrupt biofilms
Anaphylaxis risk

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is EWL

A

PreOp PA - 1mm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is CWL

A

Confirmed with EAL,length for prep+obturation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is a MAF

Study These Flashcards
A

Largest diameter file to WL
Represents final prep size of apical portion of canal

20
Q

List different file movements

Study These Flashcards
A

Filing
Reaming
Watch winding
Balanced force
Envelope of motion

21
Q

Function of barbed broach

22
Q

What motion do we use K files in

23
Q

Function of Hedstroem files

Study These Flashcards
A

GP removal or fractured instruments

24
Q

NiTi files advantages

Study These Flashcards
A

Superelasticity
Greater taper + cutting efficiency over SS (K files

25
Filing motion
1/4 turn clockwise
26
Watch winding motion
Back and forth 30-60
27
Balanced force motion
1/4 turn clockwise, 1/2 turn counter clockwise
28
Envelope of motion
360 degrees
29
Reasons for instrument separation
Torsional stress/flexural stress
30
Properties of materials that fill RC
Biocompatible Unaffected by tissue fluid Insoluble Non supportive of bacterial growth Radiopaque Removable
31
List different obturation techniques
Cold lateral compaction Warm vertical compaction Continuous wave
32
GP constituents (4)
Gutta Percha Zinc Oxide Radiopacifiers Plasticisers
33
Function of sealers (3)
Seal space between dentinal wall Lubricate Fill voids
34
Common sealers
ZOE GI Resin - AH+ (hydrophilic) Calcium Silicate (hydrophilic)
35
RCT favourable assessment of outcome criteria
Absence of pain, swelling other symptoms No sinus tract No loss of function Radiological normal pDL
36
RCT unfavourable assessment of outcome criteria
Signs/symptoms of infection PAP, or PAP same size or increased
37
Factors contributing to RCT success (4)
Patency Well condensed no voids Within 2mm of apex Good quality restoration
38
Factors contributing to RCT failure (6)
Missed canals Ledges Perforations Sinus Size of PAP Iatrogenic damage
39
Laws of Symmetry
Orifies lie equidistant from line drawn MD across pulp chamber Orifies lie perpendicular to each other
40
Law of colour change
Pulpal floor darker than walls
41
Law of Orifice location
Located at junction of walls + floor Located at angles in floor - wall junction Lie at terminus of root development fusion lines
42
Symptoms of NaOCl extrusion
Pain, bleeding, bruising, swelling, airway obstruction
43
RFs for NaOCl extrusion (6)
Excessive pressure during irrigation Needle locked within canal Loss of control of WL Larger apical diameters - immature apex RR Proximity to sinus
44
Management of NaOCl extrusion
Stop tx, alert pt Consider LA if in pain Achieve haemostats Place a steroid containing medicament - ODONTOPASTE Dress tooth + document/datix + give POI
45
Post op instruction for NaOCl extrusion
Pain + swelling relief Cold compress first few days Warm compresses Analgesia Review within 24hrs Abx? Refer if severe
46
NaOCl guidelines
Careful preop: open apices/perf Always pass syringe behind head Silicone stopper set 2mm short of WL Syringe 3/4 full Build up if isolation compromised Depress with index finger Bib + eye protection Dental dam + check seal Clearly label syringes Irrigating needle should not bind in canal Use LeurLok 27G needle

Endodontics (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions