When is a palatal obturator used?

• A. In some cases with submucous cleft or after palatal surgery to aid feeding and early speech while healing.
• B. To replace hearing aids.
• C. To prevent nasal regurgitation.
• D. To replace a missing tooth root.

Answer: (C)

A palatal obturator is a prosthetic device that seals a palatal defect, creating a barrier between the oral and nasal cavities. This directly prevents nasal regurgitation during feeding, which is its most fundamental and universal benefit. By stopping liquid from passing into the nasal passages, it also supports safer feeding and can help with early speech development while healing, especially in cases like submucous cleft palate or after palatal surgery. While it can be used in those specific situations to aid feeding and speech during healing, the key, overarching purpose across scenarios is to prevent nasal regurgitation. Options that describe replacing hearing aids or a missing tooth root don’t reflect the function of a palatal obturator.