A provisional restoration appliance for attachment to a patient's jaw comprising: an elongate dental implant adapted to be screwed directly into a patient's bone and comprising a first engagement section ; and a temporary cylinder for snap-in retention with the elongate dental implant , the elongate dental implant comprising the first engagement section , the temporary cylinder comprising: an elongate body extending from a first end to a second end , the elongate body being generally cylindrical and comprising: an upper portion ; and a lower engagement portion positioned adjacent the upper portion ; wherein the temporary cylinder's lower engagement portion comprises a male irregular hexagonal plug , wherein the male irregular hexagonal plug includes at least some contact surfaces having a first dimension and some other contact surfaces of a second dimension, the second dimension being different than the first dimension, wherein the implant's first engagement section comprises a female regular hexagonal socket , wherein the male irregular hexagonal plug and the female regular hexagonal socket are configured for inter-engagement with each other, wherein the fitting of the irregular hexagonal plug and regular hexagonal socket together with one another results in a frictional fit when inter-engaged. an elongate dental implant adapted to be screwed directly into a patient's bone and comprising a first engagement section ; and a temporary cylinder for snap-in retention with the elongate dental implant , the elongate dental implant comprising the first engagement section , the temporary cylinder comprising: an elongate body extending from a first end to a second end , the elongate body being generally cylindrical and comprising: an upper portion ; and a lower engagement portion positioned adjacent the upper portion ; wherein the temporary cylinder's lower engagement portion comprises a male irregular hexagonal plug , wherein the male irregular hexagonal plug includes at least some contact surfaces having a first dimension and some other contact surfaces of a second dimension, the second dimension being different than the first dimension, wherein the implant's first engagement section comprises a female regular hexagonal socket , wherein the male irregular hexagonal plug and the female regular hexagonal socket are configured for inter-engagement with each other, wherein the fitting of the irregular hexagonal plug and regular hexagonal socket together with one another results in a frictional fit when inter-engaged. an upper portion ; and a lower engagement portion positioned adjacent the upper portion ; wherein the temporary cylinder's lower engagement portion comprises a male irregular hexagonal plug , wherein the male irregular hexagonal plug includes at least some contact surfaces having a first dimension and some other contact surfaces of a second dimension, the second dimension being different than the first dimension, wherein the implant's first engagement section comprises a female regular hexagonal socket , wherein the male irregular hexagonal plug and the female regular hexagonal socket are configured for inter-engagement with each other, wherein the fitting of the irregular hexagonal plug and regular hexagonal socket together with one another results in a frictional fit when inter-engaged. <EOS>