One kind holding direct numerical digit imaging sensing device structure-improved, handle is held comprising an engagement, equipped with grip part, occlusion portion and supporting part and what supporting part surface is equipped with an at least public access seaming element, group is connected to a direct numerical digit imaging inductor in above-mentioned public access seaming element, and what direct numerical digit imaging inductor outer surface is equipped with more than one female conjugative component corresponding with public access seaming element. This creation by conjugative component be fitted into the way of, it allows direct direct group of inductor of numerical digit imaging to connect what engagement and holds handle end, the stability that promotion group connects, it avoids being easy to shift because sufferer tooth is touched, and chimeric mode can be reduced the width that handle and the imaging inductor assembling of direct numerical digit are held in engagement, to reduce the discomfort of sufferer when in use.一種手持直接數位顯像感應裝置改良結構，包含一接合承柄，設有握持部、咬合部及承載部且於承載部表面設有至少一公接合組件，上述公接合組件上組接有一直接數位顯像感應器，並於直接數位顯像感應器外表面設有一個以上與公接合組件對應的母接合組件。本創作利用接合組件嵌合的方式，讓直接數位顯像感應器直接組接於接合承柄末端，提升組接的穩固性，避免容易因為觸碰到病患牙齒而移位，且嵌合的方式能減少接合承柄與直接數位顯像感應器組裝的寬度，以減少病患在使用時的不舒適感。
