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cosmetic dentistry_beauty & science No. 1, 2017

laser dentistry industry report | Figs. 2a–f: a) Clinical improvement of the gum after hygienisation, reduction of swelling, bleeding and bacterial plaque; b) clinical view of the periodontal treatment, electronic probe testing (pa-on, orangedental); c) electronic probe, pa-on view and molecular-biological test; Fig. 2a Fig. 2b Fig. 2c Fig. 2d Fig. 2e of periodontal pockets. Their effectiveness in elimi- nating periodontal pathogens and decreasing pocket depth is widely documented. Neodymium:Yttrium– Aluminum Garnet (Nd:YAG) laser with a wavelength of 1,064 nm can decontaminate periodontal pocket without causing necrosing or carbonisation of the underlaying connective tissue.6 Periodontopatho- gens can persist within cells outside the pocket epi- thelium after mechanical conventional mechanical periodontal debridement, and Gianelli et al. reported that the Nd:YAG is capable of eradicating periodonto- pathogenic bacteria trapped within gingival epithelial cells.7 Erbium:YAG (Er:YAG) with a wavelength of 2,940 nm has been applied for effective elimination of granula- tion tissue, gingival melanin pigmentation and gingi- val discoloration. This laser is also used for contouring and cutting of bone with minimal damage and en- hances healing.8 In addition, irradiation with the Er:YAG laser has a bactericidal effect with reduction of lipopolysaccharide, is efficient in calculus removal, with the effect limited to a very thin layer of the sur- face and is effective for implant maintenance. A case report A 47-year-old female patient was diagnosed with advanced generalised periodontal disease, numer- ous missing teeth, lack of prosthetic supplements in the posterior region, periapical lesions, and an in- complete endodontic treatment. The patient required Fig. 2f d) the result of pocket-depth probing (PD) and clinical attachment level (CAL), bleeding on probing (BOP), mean value of PD = 38; RC = 1.19; AT = 3.57; BOP = 33 %; e) plaque index (PI), PI = 11 %; f) baseline values of molecular- biological test (PET Plus test, MIP Pharma, Germany). cosmetic dentistry 1 2017 41

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