5 Medicinal, pharmaceutical and veterinary products and chemical and biochemical preparations for medical and veterinary use; bioceramics for bone regeneration; ceramic and bioceramic materials for use in dentistry, maxillo-facial surgery, periodontology and implantology; plasma for bone regeneration; tricalcium phosphate for medical and dental use; dietetic preparations for health care; chemical preparations for health care, in particular ceramic and bioceramic materials; sponges for haemostasis [including gelatin] and wound healing; wound dressings; plasters and dressing materials; surgical tissues as far as included in this class, namely, membranes for cell regeneration; absorbable synthetic membranes for dentistry, maxillo-facial surgery, periodontology and implantology as far as included in this class; fully synthetic non-resorbable membranes for tissue regeneration in dentistry, maxillo-facial surgery, periodontology and implantology, included in this class; biodegradable membranes for use in dentistry, maxillo-facial surgery, periodontology and implantology, included in this class