Cleft Palate and Resonance Disorders: A Praxis 5331 Guide

Resonance disorders are a small slice of the Praxis 5331, but they're highly predictable: identify the resonance type, decide whether it's structural or functional, and choose therapy versus surgical referral. Miss the structural-versus-functional call and you lose the item.

The four resonance patterns

• Hypernasality — too much nasal resonance on vowels and voiced sounds. Caused by velopharyngeal dysfunction (VPD).
• Hyponasality — too little nasal resonance on /m, n, ŋ/. Caused by blockage: adenoid hypertrophy, congestion, deviated septum.
• Cul-de-sac resonance — sound trapped in a blocked cavity; muffled quality.
• Mixed resonance — both hyper- and hyponasality, common after some pharyngeal flap surgeries.

Related but distinct: nasal air emission (audible airflow on pressure consonants) and weak pressure consonants, both airflow phenomena rather than resonance.

Velopharyngeal dysfunction: three causes, three answers

• Velopharyngeal insufficiency — a structural problem (short palate, submucous cleft, post-adenoidectomy). Treatment is surgical or prosthetic, not speech therapy.
• Velopharyngeal incompetence — a neurogenic problem (weak or paralyzed velum, as in dysarthria). Managed medically or with a palatal lift.
• Velopharyngeal mislearning — a learned articulation problem with normal structure. This one responds to speech therapy.

If the item describes consistent hypernasality with a repaired cleft, the correct next step is a referral to the craniofacial team for instrumental assessment — not drills. Speech therapy cannot fix a structural gap.

Compensatory articulation errors

Children with cleft palate learn to make pressure consonants at or below the level of the velopharyngeal leak. Recognize these by name:

• Glottal stops — substituting a glottal for oral stops
• Pharyngeal fricatives and stops
• Mid-dorsum palatal stops
• Nasal fricatives / posterior nasal fricative

These are treatable with speech therapy — they're learned placements — even when a structural issue also needs surgery. That nuance is exactly what a well-written exam item tests.

Assessment methods

• Perceptual evaluation — the gold standard first step; rate nasality on connected speech and pressure-consonant loaded sentences.
• Low-tech screens — mirror fogging under the nares, nasal occlusion (cul-de-sac) test, listening tube.
• Nasometry — objective nasalance scores; indirect.
• Nasopharyngoscopy and videofluoroscopy — direct visualization of the velopharyngeal port; required before surgery.

Team-based care

Cleft management is explicitly interdisciplinary: plastic surgery, otolaryngology, orthodontics, prosthodontics, audiology, genetics, nursing, psychology, and SLP. Children with cleft palate have high rates of otitis media with effusion and conductive hearing loss, so audiologic monitoring is standard — see audiology basics. Feeding support in infancy (specialty bottles, positioning) is also an SLP role; compare with pediatric dysphagia.

Syndromes worth recognizing

• 22q11.2 deletion (velocardiofacial) syndrome — submucous cleft/VPI, cardiac anomalies, learning differences.
• Pierre Robin sequence — micrognathia, glossoptosis, U-shaped cleft, airway obstruction.
• Stickler and Treacher Collins syndromes — craniofacial anomalies with hearing loss.

Exam shortcuts

• Consistent hypernasality + structure → refer, don't treat.
• Inconsistent, phoneme-specific nasality → mislearning → therapy.
• Hyponasality → ENT referral for obstruction.
• Never choose blowing, sucking, or non-speech oral motor exercises for VP function — they don't transfer to speech.

Drill these decision points with the voice and resonance question set.