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Predictors of Velopharyngeal Dysfunction in Individuals With Cleft Palate Following Surgical Maxillary Advancement: Clinical and Tomographic Assessments.
Cleft Palate-craniofacial Journal 2019 June 19
OBJECTIVE: To investigate whether morphofunctional velopharyngeal aspects may be considered predictors of appearance or worsening of hypernasality in patients with cleft palate after surgical maxillary advancement (MA).
DESIGN: Prospective.
SETTING: National referral center for cleft lip and palate rehabilitation.
PARTICIPANTS: Fifty-two patients with repaired cleft palate, skeletal class III malocclusion, and normal speech resonance completed speech audio recordings and cone-beam computed tomography examination before (T1) and, on average, 14 months after (T2) MA.
INTERVENTIONS: Hypernasality was rated by 3 experienced speech-language pathologists using a 4-point scale and morphofunctional aspects on a 3-point scale. Cone-beam computed tomography image measurements were performed using Amira and Dolphin 3D software. For each velopharyngeal morphofunctional aspect analyzed, patients were compared according to the absence (G1) and presence (G2) of postoperative hypernasality.
MAIN OUTCOME MEASURES: Comparison of hypernasality scores between T1 and T2 and association between hypernasality and each velopharyngeal morphofunctional aspect.
RESULTS: Significant difference was observed between T1 and T2 for hypernasality ( P = .031) and between G1 and G2 ( P = .015) for velar mobility, with significant association between this variable and hypernasality on T2 ( P = .041).
CONCLUSIONS: Levator veli palatini mobility influenced the appearance of hypernasality after MA.
DESIGN: Prospective.
SETTING: National referral center for cleft lip and palate rehabilitation.
PARTICIPANTS: Fifty-two patients with repaired cleft palate, skeletal class III malocclusion, and normal speech resonance completed speech audio recordings and cone-beam computed tomography examination before (T1) and, on average, 14 months after (T2) MA.
INTERVENTIONS: Hypernasality was rated by 3 experienced speech-language pathologists using a 4-point scale and morphofunctional aspects on a 3-point scale. Cone-beam computed tomography image measurements were performed using Amira and Dolphin 3D software. For each velopharyngeal morphofunctional aspect analyzed, patients were compared according to the absence (G1) and presence (G2) of postoperative hypernasality.
MAIN OUTCOME MEASURES: Comparison of hypernasality scores between T1 and T2 and association between hypernasality and each velopharyngeal morphofunctional aspect.
RESULTS: Significant difference was observed between T1 and T2 for hypernasality ( P = .031) and between G1 and G2 ( P = .015) for velar mobility, with significant association between this variable and hypernasality on T2 ( P = .041).
CONCLUSIONS: Levator veli palatini mobility influenced the appearance of hypernasality after MA.
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