1) Numbing the tooth. Before the process of making your crown is begun, your dentist will need to anesthetize (numb up) both your tooth and the gum tissue that surrounds it. In the case that your tooth has had root canal treatment, it won't need numbing.
Prominent Russians: The Romanovs. The Romanov Dynasty (1613 to 1917) was the last imperial dynasty to rule Russia. During the Romanov reign Russia became and remained a major European power. The Romanovs share their origins with a handful of other Russian noble families.
527 Justinian I becomes the sole ruler of the Byzantine Empire. 1086 Results of the Domesday inquiry presented to William the Conqueror in Salisbury (the date of compilation and the Great Domesday are historically contestable) 1774 Joseph Priestley, English theologian, chemist and author discovers oxygen.