The preparation techniques of protein filling agents have been summarized, and the prospects of the future research on them have been introduced.
对各类蛋白填充剂的制备方法进行了综述，并对未来蛋白填充剂的研究方向进行了展望。
2
Digital periapical film can quick understand the root canal preparation, root canal length and root canal filling accurately, surpassing conventional periapical film.
数字化牙片可迅速、准确地了解根管预备、根管长度及根管充填情况，优于传统牙片。
3
After filling capsules, compare the release behavior in vitro with that of the reference preparation.