RESUMO
Foreign bodies can penetrate the interior of soft and, sometimes, hard, tissues in various ways, including through openwounds, lacerations and traumatic accidents. However over the years, evidence of links between the use of dental materialsand lately, significant involvement of aesthetic filler materials as foreign bodies in the oral and perioral region have beenreported. Foreign body granulomas (FBGs) may develop from this exogenous material, histopathologically characterizedby the presence of chronic inflammation and a high amount of macrophages. This study presents nine FBG cases affectingthe oral and perioral regions, and carries out a literature review on the main clinical, histopathological and materialcharacteristics used in dental and dermatological procedures related to the appearance of this type of granuloma.