Morita Signo T500, Operation Instructions Manual, Page: 25 / 52

23
4. Usage
Normal operation
90°
1
2
3
OTR operation
Load
90°
A
B
Overview of OGP and OTR and Switching Rotation Angles
OGP and OTR control rotational motion and are e ff ective functions for endodontic treatment.
●
OGP (optimum glide path) function
A glide path can be created through the rotational motion made using the
motor, which reproduces the subtle and delicate
fi nger movements of an
experienced dentist. Use of narrow Ni-Ti fi le and stainless-steel fi les size #15
or smaller allows you to perform negotiation e ffi ciently.
The motor repeats the watch-winding (
A
) and
balanced force (
B
)movements.
Of three types of rotation angle combinations, the
fi gure shows the motor set to rotate “90°.”
●
OTR (optimum torque reverse) function
The motor alternates between clockwise and counterclockwise rotation with
great sensitivity depending on the load on the
fi le. This allows you to perform
root canal enlargement and preparation safely and e ffi ciently without
a ff ecting the root form to reduce the occurrence of fi le penetration/brakeage,
ledge or perforation.
In normal operation, the motor continues in clockwise rotation and the operation
automatically alternates between clockwise and counterclockwise rotation when
the load on the
fi le exceeds the set value.
Of two types of rotation angle combinations, the fi gure shows the motor set to
rotate “180°.”
10R:1
100 rpm
OFF
OFF
Endo
1
E
OGP
Endo
90 r
AS
OAS
USER A
EMR-interlock endodontic mode
Page
1
Counterclockwise rotation 90°

Clockwise rotation 180°
Counterclockwise rotation 120°

Clockwise rotation 240°
10R:1
100 rpm
OFF
OFF
Endo
1
E
OT R
Endo
90 r
AS
OAS
USER A
EMR-interlock endodontic mode
Page
1
* These functions are available only in EMR-interlock endodontic mode.
A Clockwise rotation 90° →
Counterclockwise rotation 90°
B Clockwise rotation 90° →
Counterclockwise rotation 120°
A Clockwise rotation 180° →
Counterclockwise rotation 180°
B Clockwise rotation 180° →
Counterclockwise rotation 270°
A Clockwise rotation 240° →
Counterclockwise rotation 240°
B Clockwise rotation 240° →
Counterclockwise rotation 330°