Studies have not focused on idiopathic osteosclerosis (IO) because the lesion may cause negative effects on vascular circulation, bone healing and consequently influences the outcomes of implant stability. The purpose of this article is to investigate the results of implant stability in IO clinically after the lesion was surgically removed with staged implant surgery or implant placement directly in IO. In case 1, a 54 -year-old Asian female asked for implant placement in edentulous area of 46 47 for reconstruction. IO was found at 47 region and removed for further implant surgery. Five months later, computed tomographic images at 47 site revealed a higher bone density suitable for implant placement, and both implants were found stable clinically and radiographically 6 month later. In case2, a 50-year-old male carne for implant placement in the 34 35 36 and 44 areas. One implant was directly placed in IO at the 44 region, and other three implants were placed without IO involvement. Based on clinical examination and radiographic findings, both implants and peri-implant tissue were stable. To conclude, in order to obtain implant stability with IO lesions, meticulous diagnosis and treatment planning, either direct implant placement in IO or IO removal should be considered before surgery.