مخترع معجون الأسنان

23 فبراير 2013

بدأت فكرة معجون الأسنان بشكله الحالي عام 1892 ميلادي عندما قام الدكتور واشنطن شيفلد باختراع عبوة قابلة لتخزين هذا المعجوم ، وبعد بأربع سنوات فقط بدأت كولجيت انتاج معجون أسنانها الشهير.

ولكن أقدم خليط معروف لتنظيف الأسنان تم اكتشافه في الحضارة المصرية ويعود إلى القرن الرابع قبل الميلاد ، كما أن اليونان والرومان القدامى استعلموا بعض الخليط لتنظيف الأسنان.

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