 Participants will be assessed within 48 hours post-extubation for the baseline data, then a 14-day, daily Oral Swallowing Care Program involves moisturizing and cleansing oral cavity, massaging salivary gland, oral motor exercise, and intake education will be provided. Outcome will be assessed on 7th, 14th, and 21st day post-extubation including oral health status, oral sensation stereognosis, light touch and two-point discrimination, tongue and lip strength, salivary secretion, body weight. In addition, Three-Step Swallowing Screen 3-SSS and Functional Oral Intake Scale will be assessed daily. The data will be analyzed by SAS 9.3 software package. 