CMA:                      

a revolutionary system

for your everyday practice

Advantages:

1-A reduced number of instruments.

4 nickel-titanium rotary endodontic instruments for a simplified sequence.

Only one sequence for root canal shaping and removal of filling material.

2-Safer, more secure and reliable rotary instruments.

>> Cross-section with 3 cutting angles ensures more cutting efficiency.

Cross-section

>> Non-cutting tip: ensures the respect of the root canal trajectory.

>> Their shape favours the removal of debris out of the canal.

>> Short handle: improves and eases the access to molars.

-Guaranteed Safety

>> Stronger hard wearing NiTi alloy. >> Deformation visible to the naked eye.

Step 1

Exploring the coronal 2/3 of the canal and making it permeable:

Instruments used:

Manual steel files N° 10 and 15. Used until they move freely in the canal.

Objectives:

• Secure and prepare the access for CMA into the coronal 2/3 of the canal.

Step 2

Flaring the coronal and middle part of the canal:

Instruments used:

CORONAL and MEDIAN. CORONAL C

flares out the coronal part of the canal.

MEDIAN M

enlarges the middle part of the canal.

Objectives:

• Straighten the access and enlarge the root canal entries to provide continuity between the pulp chamber and the canals, so as to allow the tools a free access to the apical one-third.

Step 3

Determining the working length:

Instruments used:

Manual steel files N° 10 and 15. Used until they move freely in the canal.

Objectives:

• Determining the working length. • Preparing for the nickel-titanium rotary instruments to pass safely all the way to the apical one-third.

Step 4

Enlarging the apical portion of the canal:

Instruments used:

APICAL FINE A1 is used on the whole length of the root canal, to be followed by APICAL A2.

Objectives:

• Preparing the apical portion. • Making a space where the irrigation solutions can collect. • Providing the apical taper which will give the best obturation. • Keeping apical diameter small.

Recommendations

• Nickel-titanium rotary instruments must be used in a portion of the canal which has been explored and prepared previously with a manual file number 15.

• Examine the instruments before and after each use. Discard the tool if there is the slightest deformation. • Speed: 300 to 400 rpm. • Torque: 2 to 3 N for all instruments. • Movement: progression towards the apex by continuous short (1mm to 3 mm) and rapid up-and-down

strokes, finishing off with a « brushing » movement on the root canal walls. • Time: 5 or 10 seconds per rotary instrument. • The nickel-titanium rotary instruments must never be forced. • Properly clean the instrument after each removal. • The canal must be copiously irrigated with sodium hypochlorite each time the instrument

has been introduced. • Use of chelating gel is advised in order to facilitate work with the tools. • If progression with A1 is hindered, go again with K 15 file and M. If is hindered with A2, go again

with K 15 file and A1.