A method of preparing a stem-cell containing solution for dental implant treatment, comprising: storing a mixture of a blood sample and ethylenediaminetetraacetic acid (EDTA) at a temperature between 2 and 12 degrees Celsius for a time period of from 3 hours to 72 hours so as to have said mixture separates into an upper layer and a lower layer, wherein the upper layer comprises multiple somatic stem cells； collecting said first upper layer； after said collecting said upper layer, centrifuging said upper layer so as to form a first liquid and a pellet containing said somatic stem cells and said platelets； removing substantially all or a portion of the first liquid and leaving the pellet； re-suspending the pellet in a second liquid to form a stem-cell containing solution； and applying the stem-cell containing solution to a porous titanium-oxide layer on an outer thread of a dental implant.
