AUTHORS: NABILA AZIB, MD, JEAN-BAPTISTE CHARRIER, MD, BERNARD CORNETTE DE SAINT CYR, MD, IRINA DMITRIEVA, MD, PHILIPPE GARCIA, MD, ULIANA GOUT, MD, NIKLAS IBLHER, MD, THIERRY LEMAIRE, MD, XAVIER NOEL, MD, HERVÉ PADEY, MD, TATJANA PAVICIC, MD, VINCENZO PENNA, MD, YVES SURLEMONT, MD, G.BJÖRN STARK, MD, PATRICK TRÉVIDIC, MD, INES VERNER, MD, VÉRONIQUE GASSIA, MD
Due to their complexity, the structure and function of the orbicularis oris muscle particularly caught our attention. This unusual circular muscle around the buccal opening, which is not attached to any bone, consists of intertwined fibres that simultaneously act as a dilator and a sphincter. Moreover, the peripheral fibres of this muscle are interlaced with the peribuccal muscles enabling the infinite variations of facial expressiveness. It is essential to understand all of these elements so that they are rigorously safeguarded when undergoing the various type of treatment we can offer.
The second common thread in our book is based on highly practical aspects of the various procedures being proposed. From working environment and preparation of the equipment through well whether anaesthesia is indicated and what operating technique is recommended, the contributors have described their personal technical preferences in a context of consistency in this collective effort. Thus we have addressed lip rejuvenation and augmentation with the same balance.