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 (54, 55) having a first dimension and some other contact surfaces (54, 56) 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 (54, 55) having a first dimension and some other contact surfaces (54, 56) 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 (54, 55) having a first dimension and some other contact surfaces (54, 56) 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.