PMC4760004_01
(a) Mild extraoral swelling immediately after CHX accident (b) Moderate extraoral swelling and redness involving the right infraorbital region after 24 h
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F1
Mild swelling was observed in the right cheek area [Figure 1a]. The swelling had increased the next day and had involved the right infraorbital region [Figure 1b], but the pain had relatively reduced.
(a) Extensive extraoral swelling and redness of the right side of face on 4th day (b) Substantial reduction in extraoral swelling at 1-week follow-up
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F2
Biomechanical preparation and obturation of the upper right first molar was completed on the same day [Figure 2a and b].
Complete regression of extraoral swelling after 15 days
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F3
Swelling had completely regressed by the 15th day [Figure 3].