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Impression and custom preparation; palatal augmentation prosthesis

CPT4 code

Name of the Procedure:

Impression and Custom Preparation; Palatal Augmentation Prosthesis
Common name(s): Palatal lift prosthesis, Speech bulb prosthesis.
Medical term: Palatal augmentation prosthesis.

Summary

The procedure involves taking an impression of the palate and preparing a custom prosthesis that fits the roof of the mouth. This prosthesis helps improve speech and swallowing by compensating for structural or functional deficiencies in the palate.

Purpose

Medical Condition:

This procedure addresses velopharyngeal insufficiency (VPI), a condition where the soft palate does not close properly against the back of the throat during speech or swallowing, resulting in nasal air escape and speech problems.

Goals:
  • Improve speech clarity.
  • Prevent nasal regurgitation of food and liquids.
  • Enhance overall swallowing efficiency.

Indications

Symptoms/Conditions:
  • Hypernasality in speech.
  • Nasal regurgitation.
  • Difficulty swallowing (dysphagia).
Patient Criteria:
  • Diagnosed with VPI.
  • Inadequate response to speech therapy.
  • Structural abnormalities (e.g., cleft palate, post-surgical changes).

Preparation

Instructions for Patients:
  • No specific dietary restrictions or fasting required.
  • Maintain good oral hygiene before the appointment.
Diagnostic Tests:
  • Speech evaluation.
  • Nasopharyngoscopy to assess the structure and function of the soft palate.

Procedure Description

  • The dentist or prosthodontist will first take an impression of your palate using a dental impression material to capture an accurate mold of the area.
  • The impression is sent to a dental lab where a custom prosthesis is crafted.
  • During the fitting appointment, the prosthesis will be adjusted for comfort and function.
  • The prosthesis may be attached to existing dentures or designed as a standalone device.
Tools and Equipment:
  • Dental impression trays.
  • Impression material (e.g., alginate or silicone).
  • Prosthetic design tools.
Anesthesia:
  • Generally, no anesthesia is required.

Duration

  • Impression taking: Approximately 30 minutes.
  • Fitting and adjustment: 1-2 hours.

Setting

  • Outpatient dental clinic or prosthodontist's office.

Personnel

  • Prosthodontist or dentist.
  • Dental assistant.

Risks and Complications

Common Risks:
  • Minor discomfort during impression taking.
  • Initial speech adaptation difficulties.
Rare Risks:
  • Sore spots in the mouth from prosthesis pressure.
  • Allergic reactions to impression materials.
Management:
  • Follow-up appointments for prosthesis adjustments.
  • Use of soothing oral gels if sore spots occur.

Benefits

Expected Benefits:
  • Enhanced speech clarity within a few weeks.
  • Improved swallowing and reduced nasal regurgitation immediately after fitting.

Recovery

Post-procedure Care:
  • Regular cleaning of the prosthesis.
  • Follow-up visits for adjustments and evaluation.
Recovery Time:
  • Immediate ability to wear the prosthesis.
  • Adaptation period for speech improvements may take several weeks.

Alternatives

  • Speech therapy alone, although less effective for structural VPI.
  • Surgical correction (e.g., pharyngeal flap surgery), which is more invasive and carries surgical risks.
Pros and Cons:
  • Prosthesis: Non-invasive, reversible, adjustable.
  • Surgery: Permanent solution, requires recovery time, potential surgical risks.

Patient Experience

During Procedure:
  • Slight discomfort during impression material setting.
  • Feeling of pressure during fitting.
After Procedure:
  • Period of adjustment to speaking with the prosthesis.
  • Minimal post-procedure discomfort.
  • Regular oral hygiene and prosthesis maintenance to ensure comfort and functionality. Pain management is generally not required due to the non-invasive nature of the procedure.

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