A dental implant includes a fixture and an abutment in a body, and a head for a compaction drill is configured for implanting such an implant. Various other methods, systems, and computer-readable media are also disclosed. The light emitting diodes are coupled to the first end of each of the optical fibers for illuminating the optical fibers. The peer server propagates the messages to one or more of its neighboring peer servers hosting virtual spaces that neighbor its virtual space in the virtual world.