Temporary reconstruction of the mandibular continuity defect resulting from the ablative tumor surgery with a reconstruction plate can be used for the preservation of normal facial contour and oral function and for periodic follow up of recurrence. Reconstruction plates are adapted to the bone before the resection and provisionally fixated with some screws. Accurate contouring and adaptation are very important for the prevention of displacement of bony stumps and decubituous skin ulcer. However, if there is large expanding buccal tumor mass in mandible, it is very difficult or even impossible to contour the plate before resection. I, therefore, introduce the reconstruction plate application technique using a simple condylar repositioning miniplate after segmental mandibular resection.