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…monitor a patient's treatment plan. It is also used by healthcare providers as a therapy tool to perform region-specific lingual
exercises (i.e., anterior, posterior). The IOPI is portable and convenient, but when the bulb encounters
saliva, it does not always remain in a fixed position, which may negatively alter the quality of the results. Due to this…
https://www.wichita.edu/_archive/services/mcnair/Journals/Volume27Journal21-22.pdf