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الملخص
comparison of a CAD/CAM zirconium retainers with S.S wire retainers in terms of plaque accumulation and gingival inflammation.
24 consecutive patients completing upper and lower fixed appliance therapy and requiring retainers department on tow test groups received either retainers thin, flexible spiral S.S wire (0.0195 in) bonded to each tooth (n=12) or Laboratory produced zirconium retainer (n=12), fallow-up periods of 1 year reporting accumulation of plaque and gingival inflammation using the plaque and gingival indices of Silness and Loe. Data were collected after a week of placement retainers (T0), 3 months (T1), 6 months (T2), and 12 months (T3).
There was significantly less plaque accumulation and better gingival health with zirconium retainers than S.S retainers over the evaluated 12 months.
After 1 year, zirconium retainers were associated with less accumulation of plaque and low gingival inflammation than S.S retainers, and this associated with better gingival health and oral health in general.