Purpose: To assess TheraBite influence versus ketoprofen phonophoresis on tempromandibular joint pain and trismus after tonsillectomy. Methods: (Vernier caliper gauge to evaluate maximum mouth-opening capability, visual analogue scale for the assessment of pain and Mandibular Function Impairment Questionnaire (MFIQ) to assess tempromandibular joint disorders. Forty patients with ages range from 15 to 22 years complaining from tempromandibular joint pain and trismus following tonsillectomy. Participants were randomly allotted into two groups equivalent in number; every group consisted of twenty patients. The first study group (A) contained 20 patients who undertook the routine medical care in addition to the TheraBite exercises five times per day, each time for 2 minutes. The second group (B) was composed of 20 patients who received the routine medical care in addition to the ketoprofen 2.5% gel phonophoresis on the mastication muscles area for 5 minutes for each side of the face at an intensity of 1.0 w/cm² and frequency of 1.0 MHz with pulsed mode. Measurements will be done before the initial management as a primary score and at the termination of the third week of management as a second last record. Results: Results revealed that the TheraBite exercises and ketoprofen phonophoresis reduced tempromandibular joint pain and trismus after tonsillectomy but TheraBite exercises showed significant effect. Conclusion: TheraBite exercises and ketoprofen phonophoresis were advantageous and fruitful in decreasing the tempromandibular joint pain and trismus after tonsillectomy but TheraBite exercises was more successful.