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. 2021 Aug 20;92(1):80–86. doi: 10.2319/122820-1037.1

Table 5.

Frequency of Semiobjective Speech Assessment: Speech and Language Pathologist Evaluation of Speech Alteration of Invisalign and Fixed Groups at T0, T1, and T2


Invisalign Group (n = 24)
Fixed Group (n = 20)
T0
T1
T2
T0
T1
T2
Speech alteration
 Normal 91.7 50.7 56.3 83.3 67.5 78.3
 Mildly altered 8.3 41.7 43.1 15.8 26.7 20.0
 Moderately altered 0 6.9 0.7 0.8 5.0 1.7
 Severely altered 0 0.7 0 0 0.8 0
Speech intelligibility
 Intelligible 100 100 100 100 100 100
 Unintelligible 0 0 0 0 0 0