“…Twenty-eight studies evaluated swallowing outcomes using objective [20, 24, 25, 27, 31, 38, 40, 44, 46], clinical [15, 21, 22, 29, 30, 32, 33, 36, 37, 41, 42, 45], or subjective assessments [5, 16, 19, 20, 23, 33, 34, 39]. Seventy-three patients demonstrated improvement in swallowing with a prosthesis, 1 patient demonstrated worse outcomes [16], 5 patients demonstrated no changes [46], and 48 patients were not evaluated.…”