Front tooth was taken out over a year. Had two apicetomys and was infected. Tooth next to it also has had apicetomy. Implant fitted a year ago but four months after a painful spot came up. Crown removed but told implant was fine. Had bone graft and plan to try again next month. Am concerned it will fail again as I have had infection in my mouth wonder if has gone. Don't want to go through anymore painfull procedure for same result. Please could you give me your opinion. Thanks.