foreign body (FB). Definitions: 1. anything of material substance in the tissues or cavities of the body that has been introduced from without, and that is not rapidly absorbable. The definition information for foreign body is provided by Stedman's. You can search our medical dictionary here.Stedman's, part of Lippincott Williams & Wilkins, provides a comprehensive line of health-science publications for healthcare professionals and medical students.he definition information for foreign body is provided by Stedman's. You can search our medical dictionary here.
However, Iâm sure there are lots of downsides of braces that I would hate as well. The bottom line: straightening teeth is not a pleasant experience no matter how you do it. For more on this, check out Savingadvice.comâs posting on Invisalign costs. Their assessment â Invisalign costs $3,500 to $8,000.
Cost comparisons. 1  InvisalignÂ® Express, the company's lowest-priced system, costs the dentist on the order of $750 per case (2008). 2  In comparison, the RW IIÂ®, Red White & BlueÂ®, and Simpli 5Â® systems cost the dentist around $180, $225, and $600, respectively (2008).