The amount of x-radiation from getting a set (4) bitewings is about the same as the background radiation from a round trip, coast to coast, airplane flight.

See these 2 sites to learn more about diagnostic radiation and the risks and benefits"

http://www.radiologyinfo.org/en/safety/index.cfm?pg=sfty_xray&bhcp=1

http://www.ada.org/public/topics/xrays_faq.asp#4

Gary Allsebrook
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Dx 11/22/02, SCC, 6 x 3 cm Polypoid tumor, rt tonsil, Stage III/IVA, T3N0M0 G1/2
Tx 1/28/03 - 3/19/03, Cisplatin ct x2, IMRT, bilateral, with boost, x35(69.96Gy)
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"You are a mist that appears for a little while and then vanishes" (James 4:14 NIV)