Книга: «Effect Of Air Polishing on Tooth Surface»
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Производитель: "Неизвестный" The concept of air polishing is based on a technology developed by Dr. Robert Black in 1945. Black invented a device called the Air Dent, which used compressed air, water and a highly abrasive powder to eliminate pain from cavity preparation, making anesthesia unnecessary. Air polishing was first marketed in 1976. Air-powder polishing is accomplished by the propulsion of abrasive particles through a mixture of compressed air and water which is passed through a handpiece nozzle. Kinetic energy propels the air polishing abrasive particles against the tooth surface, thus removing stain and/or dental plaque. ISBN:9783659753855 Издательство: "Неизвестный" (2015)
ISBN: 9783659753855 |
Неизвестный
- неизве́стный
- I м. разг.
Тот, о ком нет сведений.
II прил.
1.Такой, о котором нет сведений; неведомый, незнакомый.
2.Не пользующийся известностью, признанием.
Толковый словарь Ефремовой. Т. Ф. Ефремова. 2000.
Источник: Неизвестный
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