An<unk>  is an instrument used for cutting or preparing bone.
1. Today<unk> s are used in dental implantation. With the<unk>  technique, osteoplastic procedures have been developed with which the bone quality (compaction
of local bone) and bone quantity (ridge extension in horizontal and vertical dimension)
are routinely improved and adequate primary stability of the implants can be ensured
with a high degree of predictability.
2. The instrument invented by Bernhard Heine, a German physician in Würzburg in 1830 was used as a bone saw, especially for opening the skull.It is a kind of chain saw moved by turning a winder. Heine's<unk>  is not used in surgery any longer.
Osteotome
Osteon
Bone island
Hyoid bone
Pisiform bone
Adnexa
Viscus
Aura 