External auditory exostosis (EAE) is a condition of progressive temporal bone growth into the external auditory canal most commonly from repeat cold water and wind exposure. Several tools have been utilized for EAE excision with varying implications for intra- and postoperative complications. However, comparisons of osteotome and microdrill are made difficult due to the few published cases and intervariability between surgeons. Furthermore, evidence is needed to analyze the safety of novel supplemental tools such as the piezoelectric bone-cutting device.
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