فقدان طبقة المينا يؤدي إلى اصفرار الأسنان

[{ "selector": ".wtgeq-a", "duration": "1000ms", "fill": "forwards", "delay": "0ms", "keyframes": [ {"offset": 0, "opacity": 0}, {"offset": 1, "opacity": "1"} ] }]

الطعام والشراب من عوامل اصفرار الأسنان

[{ "selector": ".tjkwj-a", "duration": "1000ms", "fill": "forwards", "delay": "0ms", "keyframes": [ {"offset": 0, "opacity": 0}, {"offset": 1, "opacity": "1"} ] }]

ما هو السبب الأكثر شيوعا لاصفرار الأسنان؟

[{ "selector": ".xqscc-a", "duration": "1000ms", "fill": "forwards", "delay": "0ms", "keyframes": [ {"offset": 0, "opacity": 0}, {"offset": 1, "opacity": "1"} ] }, { "selector": ".lcalz-a", "duration": "500ms", "fill": "forwards", "delay": "1000ms", "keyframes": [ {"offset": 0, "transform": "translateY(calc(600px - 454px))", "opacity": "1"}, {"offset": 1, "transform": "translateY(0)", "opacity": "1"} ] }, { "selector": ".lcalz-a-e", "duration": "250ms", "fill": "forwards", "delay": "1500ms", "keyframes": [ {"offset": 0, "opacity": "1"}, {"offset": 1, "opacity": 0} ] }, { "selector": ".tqesn-a", "duration": "500ms", "fill": "forwards", "delay": "1750ms", "keyframes": [ {"offset": 0, "transform": "translateY(calc(600px - 454px))", "opacity": "1"}, {"offset": 1, "transform": "translateY(0)", "opacity": "1"} ] }] للمزيد اسحب الشاشة