However, neither former Soviet nor Russian officials have claimed the skull was the main piece of evidence, instead citing jawbone fragments and two dental bridges which were found. The items were shown to Hitler's dentist, Hugo Blaschke; dental assistant Käthe Heusermann; and longtime dental technician Fritz Echtmann, who confirmed the dental remains found were Hitler's and Braun's.[8][9] The skull fragment was found only later, in 1946, when the Soviets investigated rumours of Hitler’s survival.[7]