Zucchelli′s technique combined with platelet-rich fibrin for root coverage

Dyeing of Textiles with Natural Dyes

“…The wool treated with metal ions such as Al(III), Cr (VI), Cu (II), Fe (II), Sn (II) and rare earths such as La (III), Sm (III) are used for beet sugar colourant, it can withstand the requirement of BIS fastness standards. Optimization (Agarwal et al, 1993) of the various concentrations of mordant are reported for shades can be produced by 0.15% of alum, 0.08% copper sulphate and stannous chloride, 0.04% ferrous sulphate and 0.06% potassium dichromate on mulberry silk fabric. Extraction of natural dye from the leaves of teak plant by using aqueous methonal produced brick red shade on dyeing of silk/ wool using the isolated dye in presence of different mordants as it is reported (Nanda et al, 2001).…”

Metal Release and Surface Degradation of Fixed Orthodontic Appliances during the Dental Levelling and Aligning Phase: A 12-Week Study

“…The end result of corrosion is metallic ion release into the oral cavity [1], such as Ni, Cr, Ti, Co, Mo, and Fe, which can be enhanced by the detrimental effects of the alloy usage (e.g., mechanical stress and fatigue) [3,28]. Several important consequences of this intraoral corrosion may arise and include enamel discoloration and demineralization, hypersensitivity, inflammatory reactions and local pain, and toxicity effects [1,3,25,[29][30][31].…”

“…Nickel release from orthodontic components can accumulate in the oral mucosa cells [40,49] and decrease cellular viability [40], while systemic toxicity should not be ignored [49]. Ni also induces allergic reactions, as several intra-and extra-oral, subtle to severe symptoms have been reported: severe gingivitis without dental plaque, dermatitis, asthma, gingival hyperplasia, multiform erythema, and labial desquamation, among other symptoms [15,16,30,31,50]. Besides discomfort and pain, orthodontists may need to replace Ni-enriched components, interrupt the treatment, and refer the patient to an allergist or other specialist [50][51][52][53][54].…”

“…Despite all concerns, there is no scientific consensus on whether the short-or long-term nickel concentration increases are significant after placing the orthodontic appliances [9][10][11]36,[42][43][44][45][46][47][48][55][56][57][58] and the real impact in human health [2,15,32,59]. Allergies in orthodontics are (fortunately) rare [31,60], but may be ineffectively diagnosed: subtle signs can be misinterpreted as mechanical injuries or bacterial-related [2,54,61,62]. Furthermore, while some researchers reported that salivary nickel leaching significantly increased after starting the orthodontic treatment [9,10,40,41,[44][45][46][47]49,58], others found no significant oral concentration changes [11,36,48,55,56].…”

Complete root coverage in severe gingival recession with unfavorable prognosis using the tunneling technique

“…12 Similarly, positioning of the tooth outside the alveolar housing has also been implicated with gingival recession. 13 Different surgical techniques, including laterally positioned flap, 14 Zucchelli technique, 15 coronally advanced flap, 16 and double papillae technique, 17 have been described in the literature to treat gingival recession. 18 Furthermore, the use of connective tissue graft, donor tissue such as Alloderm (acellular human tissue matrix derived from cadaveric tissue) and Emdogain (gel containing enamel matrix derivates) has also been suggested.…”