A dental guidance assembly that includes: (a) a rigid body comprising at least one tooth-shaped recess and a coupling structure； and (b) at least two dental bur guides that are each: structured to securely and removably couple to said coupling structure, and comprising an elongated slot having the following measurements: a length of 4 to 40 millimeters, a width of 1 to 4 millimeters, and a depth of 2 to 10 millimeters. The elongated slot extends along a portion of a circumference of a treated tooth, wherein the elongated slots of said at least two dental bur guides have complementary structures, such that, together, the elongated slots are configured to facilitate a limitation of the motion of a dental bur to: an entirety of the circumference of a treated tooth, and a depth suitable to form a shoulder on the treated tooth, for receiving a dental restoration.
