RETREATMENT
% Inadequate trt % Failures
(LEO)
Eckerbom et al. (1987) Sweden 75 26,4
Eriksen et al. (1988) Norway 59 34
Odesjö et al. (1990) Sweden 70 24,5
Imfeld (1991) Switzerland 64 31
Hülsmann et al. (1991) Germany 62 60
De Cleen et al. (1993) Holland 50,9 39,2
Städler et al. (1993) Austria 57,8 25,9
Buckley et Spangberg
(1995)
USA 58 31,3
Marques et al. (1998) Portugal 53,8 21,7
Boucher et al (2001) France 79 63
Quality of Endodontic Treatments
ProTaper Universal Retreatment
ProTaper « D »
D1
D2
D3
30–9%
25–8%
20–7%
16mm
18mm
22mm
ProTaper « D »
Decreasing Taper
ProTaper D1
Active Tip : allows better initial
penetration in the material
30
Retreatment
Sequence
If Insoluble
resins
If Soluble
Pastes
Ultrasonics
RETREATMENT
If Gutta
Percha
ProTaper D
No Solvent
Solvent
+
ProTaper D
D1
Use D1 with an in-and-out motion.
In case of blockage, do not force
take an X-Ray.
Use DMS 4 to softened Gutta
D2
Use D2 with an in-andout
motion
In case of blockage,
don’t force.
take an X-Ray.
If there is still material
in the canal, move to
D3
D3
Use D3 with an in-and-out
motion
In case of blockade, don’t
force.
take an X-Ray.
If there is still material in the
canal or a ledge use a
C+ file
Bypass the
ledge with precurved
C+ files size
08, 10 or 15
18mm length
Check patency of the apical
area and determine
Working Length
With Stainless Steel Hand
File
Size 15
Shape at Working Length
S1 S2 F1
D1
D2
Use C+ Files
in the last mm of the canal
to avoid
debris extrusion
D3
Additional Shaping at
Working Length
If needed
F2,F3…
PROTAPER Sequencer
For better ergonomy
Posts Removal &
Broken Instruments Removal
CONTINUING EDUCATION
CLINICAL EDUCATION
Abrasive coated
instruments
Titanium instruments
ENDO1 ENDO2 ENDO3 ENDO4 ENDO5 ENDO6 ENDO7 ENDO8
17 mm 17 mm 18 mm 20 mm 24 mm 20 mm 24 mm 27 mm
Broken Instruments Removal
Posts Removal
5 tips for access cavity refinement and
canal orifice location
CONTINUING EDUCATION
CLINICAL EDUCATION
❑ Specific design → suitable for working efficiently both on the
top and on the sides of the metal post
❑ Water port → avoids over heating
ProRoot MTA
MINERAL TRIOXIDE AGGREGATE
white
ProRoot MTA
PHYSICAL & CHEMICAL PROPERTIES
- pH 12,5
- WORKING TIME 5 min.
- SETTING TIME 4 h.
- R. COMPRESSION 67,3 MPa (Amalgam : 311,1 Mpa)
- RADIO OPACITY < Amalgam
> IRM et Super EBA
The two main properties
of
ProRoot MTA
SEALING ABILITY
BIOCOMPATIBILITY
ProRoot MTA
INDICATIONS
PERFORATION REPAIR
PULP CAPPING
APEXIFICATION (Apical Plug)
ROOT-END FILLING MATERIAL
ProRoot MTA
For Perforation Repair
Lee et al. 1993
Holland et al. 2001
Nakata et al. 1998
Pitt Ford et al. 1995
MTA GUN
ProRoot MTA
For Apexification (Apical Plugs)
Shahabang et al. 1999
Simon et al. 2007
Felippe et al. 2006
Hachmeister et al. 2001
Tittle et al. 1996
Shahabang et al.
J Endodon 1999
0
10
20
30
40
50
60
70
80
90
100
OP1 Ca(OH)2 MTA Collagen
A comparative study of root-end induction using
osteogenic Protein-1, calcium hydroxide and Mineral
Trioxide Aggregate in dogs.
Shahabang et al. J Endodon 1999 ; 25 : 1-5.
% of roots with
apical closure