Table 3.
Reported Comparative Radiation Effective Dose (E 2007) for Limited, “Focused” or Small FOV CBCT Systems.
| Dosea | |||||
|---|---|---|---|---|---|
| Absolute | Comparative | ||||
|
| |||||
| CBCT unit | Ref. | Technique | Effective dosea (μSv) | Digital panoramic equivalentb | No. of days of annual per capita backgroundc |
|
| |||||
| Kodak 9000 3D | [30] | Mx Post/Mx Ant/Mn Post/Mn Ant | 9.8/5.3/38.3/21.7 | .7/.4/2.7/1.6 | 1.2/.6/4.7/2.6 |
| PreXion 3D | [18] | Standard/High Res | 189/388 | 13.5/27.7 | 23/47 |
| ProMax 3D | [18] | Small/Large | 488/652 | 35/47 | 59/79 |
| 3D Accuitomo | [23] | Ant (4 × 4 cm/6 × 6 cm) | 20/43 | 1.4/3.1 | 2.5/5.2 |
| [24] | Min (Mn PM)—Max (Mn 3rd Mol) | 11–77 | .8–5.5 | 2.5–5.2 | |
| [19] | Mx (Ant/PM/Mol) | 29/44/29 | 2/3.2/2 | 3.5/5.3/3.5 | |
| Mn (Ant/PM/Mol) | 13/22/29 | .9/1.6/2 | 1.6/2.7/3.5 | ||
| [17] | II/FPD Large/FPD Small | 30/102/50 | 2.1/7.3/3.6 | 3.6/12.4/6 | |
| Veraview | [23] | Ant (4 × 4 cm/8 × 4 cm/pan + 4 × 4 cm) | 31/40/30 | 2.2/2.9/2.1 | 3.8/4.9/3.6 |
| [25] | 4 × 4 cm | 2.9 | .2 | .06 | |
aUsing 2007 ICRP calculations.
bMedian of published effective dose for digital dental panoramic radiography = 14 μSv.
cAnnual per capita = 3.0 mSv (3,000 μSv) per annum.