Every time I plan for implants, I see blood vessels crossing the lingual cortical plate in the mandible. I am always worried about perforating these vessels and causing a lingual/sublingual hematoma. If I do not perforate the lingual cortical plate, how safe would it be to place implants near these vessels? When I encountered this situation, I have noticed a minute hemorrhage under the tongue measuring about 2- 4 mm. Can you make some recommendations how to avoid hemorrhage from these vessels?