title: Leaving a lasting impression: ear mold impressions as middle ear foreign bodies.
abstract: OBJECTIVE
  We describe a series of otologic complications from impression material used to make hearing aid molds.
  
  
  METHODS
  We examined a retrospective case series of patients presenting to a tertiary care academic medical center.
  
  
  RESULTS
  The presentation, clinical course, and treatment outcomes of 6 patients with complications related to ear molds are discussed. These patients had preexisting abnormalities in their aural anatomy, including tympanic membrane perforations, retraction pockets, and mastoidectomy cavities.
  
  
  CONCLUSIONS
  Although the majority of patients who have ear canal impressions taken experience no adverse outcomes, hearing aid dispensers should perform a thorough history-taking and physical examination to discern those with abnormal anatomy at risk for complications. These patients may benefit from evaluation in conjunction with an otolaryngologist.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, The Ohio State University, Columbus, Ohio 43210, USA.
authors.forename: Abraham
authors.initials: A
authors.lastname: Jacob
authors.forename: Targhee J
authors.initials: TJ
authors.lastname: Morris
authors.forename: D Bradley
authors.initials: DB
authors.lastname: Welling
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D004432:Ear, Middle / Q000002:abnormalities; D005547:Foreign Bodies / Q000209:etiology* / Q000601:surgery*; D006310:Hearing Aids / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008416:Mastoid / Q000601:surgery; D008875:Middle Aged; D012189:Retrospective Studies; D014432:Tympanic Membrane / Q000601:surgery; D018058:Tympanic Membrane Perforation / Q000150:complications