Endostar E3 Azure Big:

Is not a separate rotary system. This is an extension of the Endostar E3 Azure Basic and is used for shaping wide canals, for which final preparation to size 30 is not sufficient. It should always be preceded by initial preparation performed with the Endostar E3 Azure Basic or Endostar E3 Basic.

• The handpiece should run at 300 rpms. The operating speed of the handpiece should be constant throughout the shaping process.
• Do not apply excessive force. An up-and-down motion should be used when operating the files.
• Shaping time should be as short as possible.
• Always use a lubricating agent when shaping the canal.
• The files are very sharp and should be used very carefully, with little force and without excessive "thrusting".
• Operate the instruments and handpieces according to their operating instructions (especially torque settings and speed).
• Use the type and amount of instruments that is truly needed in a given clinical situation.
• Control the number of times that the instrument was used.
• Before using the instruments, be sure to run them outside the oral cavity and check for deformations, scratches and cracks.
• Dispose as medical waste.
• It is a natural phenomenon that Endostar E3 Azure bent files do not back to stright shape at room temperature, as is the case with files made of unmodified NiTi alloys.
• Endostar E3 Azure files can be pre-bent, such as steel files, before inserting into the root canal.
• It is also acceptable to insert bent file into the canal and then start the micromotor, which simplify access to the canals in the molars.

2. Recommended movements:

All instruments have been designed and manufactured in such a way that they can be used in three types of movements depending on the individual preferences of the dentist, the diagnosis of a given case and the contra-angle handpiece available in dental office.

• Rotary movement - the instrument rotates continuously 360° in a clockwise direction (CW - Clock Wise).
• Reciprocal movement - the instrument performs alternating movements: clockwise (CW) and anti-clockwise (CCW - Counter Clock Wise) except that the CW movement angle must be larger than CCW angle, e.g. 90° CW and 30° CCW. It is recommended that the rotation in the CW direction should be in the range of 90° to 270° and in the CCW direction in the range 30° to 90°, so that the net rotation in the CW direction in each cycle is in the range of 60° to 240°, which means a full 360 CW rotation (according to clockwise) after 1.5 to 6 cycles.

• Complex movement - it is a kind of movement that connects the rotary movement with the reciprocal movement. After inserting file into the root canal, the file performs a rotary motion, and if the resistance for the file in the canal is too high, the rotary motion changes to a reciprocating movement, when the resistance decreases, the rotary motion returns. An example of this is OTR movement.

3- Recommended Torque:

• standard torque(Ncm): 2.1
• Advanced torque (Ncm): 3

Files should be used with motor speed at 300 rpm.Don't exceed the upper torque limit.

4- Clinical instructions for use (Endostar E3 Azure Big):

• After preparation of the canal with the use of file No. 3 from the set of Endostar E3 Azure Basic is completed, shape the canal with instrument No. 1 from the Endostar E3 Azure Big (04/35) until full working length is reached. Finish with hand NiTi file size 35. Insert the file at the working length (vertical movement without rotation). If you feel a slight resistance to the further movement of the file at the working length, this means that the preparation can be finished on size 04/35. If you feel that the file does not encounter resistance at the working length, it is advisable to expand the canal described in point 2.
• Shape the canal by inserting instrument No. 2 (04/40) at full working length. Finish with hand NiTi file size 40. Insert the file at the working length (vertical movement without rotation). If you feel a slight resistance to the further movement of the file at the working length, this means that the preparation can be finished on size 04/40. If you feel that the file does not encounter resistance at the working length, it is advisable to expand the canal described in point 3.
• Shape the canal using instrument No. 3 from the Endostar E3 Azure Big (04/45) until you reach full working length. Finish with hand NiTi file size 45. Insert the file at the working length (vertical movement without rotation). If you feel a slight resistance to the further movement of the file at the working length, this means that the preparation can be finished on size 04/45. If you feel that the file does not encounter resistance at the working length, it is advisable to expand the canal larger-sized NiTi hand files such as size 50, 55, 60 etc.