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1 янв 1938 г. - Dr. P.B. Adams
Описание:
En 1938, el Dr. P.B. Adams patentó un implante endóseo cilíndrico que se roscaba tanto interna como externamente; tenía un cuello gingival liso y un tapón de cicatrización.
Добавлено на ленту времени:
Historia de la prótesis dental
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No No
2 окт 2023
0
0
185
Дата:
1 янв 1938 г.
Сейчас
~ 87 г назад
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