33
Radiography technical letter
Standard table for exposure time with type E film in adult individuals using the bisector periapical
technique.
DEP - Skin penetration dose (mGy)
DEP - 3,5 mGy - Standard level established by ordinance 453 (D.O.U. 103 02/06/98) for a periapical
exame of typical adult patient and film of group E. (Extaspeed/Agfa M-4)
Film D (Ultra-speed/Agfa M-2) double the time;
Children, con-sider 2/3 of time;
Angle with the vertical.
Procedure for processing with recent chemical agents
Process Temperature (ºC)
18 - 20
21 -22
23 - 25
26 - 28
29 - 31
Process Time (min)
5,0
4,0
3,0
2,0
1,0
Region
Angle
Time
(E group film)
DEP
(mGy)
Time
(Digital Sensor)
DEP
(mGy)
Superior Jaw
Incisor
Canine
Pre-molar
Molar
+40º
+45º
+30º
+20º
0,32 - 0,40
0,40 - 0,50
0,40 - 0,50
0,50 - 0,64
1,1 - 1,5
1,5 - 2,0
1,5 - 2,0
2,0 - 2,6
0,06
0,08
0,08
0,10
0,10
0,16
0,16
0,24
Lower Jaw
Incisor
Canine
Pre-molar
Molar
-15º
-20º
-10º
-5º
0,32 - 0,40
0,32 - 0,40
0,32 - 0,40
0,40 - 0,50
1,1 - 1,5
1,1 - 1,5
1,1 - 1,5
1,5 - 2,0
0,06
0,06
0,06
0,08
0,10
0,10
0,10
0,16
Bitewing
Anterior
Posterior
+8º
+8º
0,32 - 0,40
0,32 - 0,40
1,1 - 1,5
1,1 - 1,5
0,06
0,06
0,10
0,10
Oclusal
Upper Jaw
Lower Jaw
+60º
-70º
0,50 - 0,63
0,40 - 0,50
2,0 - 2,6
1,5 - 2,0
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OPERATION OF EQUIPMENT
Содержание Spectro 70X Series
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