In the standard FMS breakdown, how many bitewings are included?

• A. 2
• B. 4
• C. 6
• D. 8

Answer: (B)

Four bitewings are included in the standard FMS breakdown. This setup gives a complete view of the posterior interproximal areas on both arches, with one bitewing taken for each quadrant (upper right, upper left, lower right, lower left). This arrangement lets you detect interproximal decay and early bone changes across the mouth without adding unnecessary exposures. Using fewer bitewings would miss coverage of some posterior areas, while more bitewings isn’t part of the typical standard unless there are specific clinical indications.