| 摘要 |
The interroot pin contains crown and root parts, and crown and root parts are made of fiberglass materials and the crown part is made at angle of inclination of 15, 20 or 25 ° relative to the axis of the root, in addition, the crown part as a cylinder is made up to 7 mm, and root as a cone is made with the length of at least 10 mm. |
