The most common oral surgery procedures are those involving teeth (e.g. extraction, apicoectomy, hemisection). It is also possible to alter the shape, position and volume of the soft tissues (gingivectomy, gingival grafting, frenulotomy etc.). Furthermore, a series of procedures can be performed on the bone structure (e.g. osteotomy, bone grafting, guided tissue regeneration, bone augmentation). Other important oral surgery procedures include implantology, cyst/tumour removal etc.