I have a 30-year old male patient without any systemic disease and is a non-smoker. He had #36 (left mandibular first molar) extracted about 1 year ago because it was non-restorable. I have treatment planned for a 4.5x10mm implant to replace it. The bone quality is average. The main problem is that the patient has bruxism. There is much occlusal wear on many teeth, especially on the mandibular anterior teeth. What is the best way to restore the implant crown? Should I design a crown with a flat occlusal surface? Narrow occlusal table? Minimal occlusion? Would a night guard help?