CTD WEEK 8.pptx

Light Activated Disinfectio n(A New Approach in Disinfection) DR. CLAUDINE LAGMAN What is LAD? Technique that uses a photosensitizing compound, activated at a specific wavelength of light, to destroy the targeted cell via strong oxidizers...

Light Activated Disinfectio n(A New Approach in Disinfection) DR. CLAUDINE LAGMAN What is LAD? Technique that uses a photosensitizing compound, activated at a specific wavelength of light, to destroy the targeted cell via strong oxidizers Which causes cellular damage, membrane lysis, and protein inactivation  LIGHT SOURC E The treatment of bacterial infectious With respect to dieses requires that phenothiazines or sufficient light intensity porphyrins is delivered There is a still effective absorption of light for wavelengths Above 600nm  LAD in Dentistry The oral cavity is colonized by complex , relatively specific, and highly interrelated microorganisms, including aerobic and anaerobic Gram- positive and Gram-negative bacteria, fungi,mycoplasma ,protozoa and viruses. The method has been known since The 90’s from the literature using different photosensitizers  Indication for LAD in Dentistry Endodontics Periodontics Oral Surgery Restorative Dentistry Implant Dentistry ENDODONTI CS ENDODONTI C Root canal filling had a success rate of 94%. On the other hand the teeth NOT sufficiently disinfected before the root canal filling, had a success rate of ONLY 68%. Influence of infection at the time of root filling on the outcome of endodontic treatment of the teeth with apical periodontitis. Sjögren II –Int Endo 1 1997 Sec 30(5)-297-306 ENDODONTIC S Gram –positive Gram-negative Fungi News-medical.net Viruses  LAD in Endodontics Escherichia Coli, Candida albicans, Enterococcus feacalis, PAD yield significant reductions Fusobacterium (p