system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
An old man who is edentulous developed squamous cell carcinoma in buccal mucosa that has infiltrated to the alveolus. Following is not indicated in treatment
assistant
The correct answer is  Marginal mandibulectomy with removal of outer table is not recommended. Marginal mandibulectomy -- It include incontinuity excision of tumour with margin of the mandible and overlying gingival at least 1 cm thick mandible inferiorly. It is indicated in carcinoma close proximity to the lower gingival or extending onto the mandible without clinical or radiological mandibular involvement. It is also recommended in patients with minimal coical mandibular invasion