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

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