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What is Which of the following type of tongue thrusting has the worst prognosis? and explain in detail?
Tongue thrusting has been variously described as a deviate swallow, visceral swallow, retained infantile swallow or reverse swallow.
Prognosis

Simple tongue thrusting - Excellent
Complex tongue thrusting - Good
Retained infantile swallow - Poor

Pediatric Dentistry, Principles and Practice / M.S. Muthu, N. Sivakumar - 2nd Ed