Iandolo Alfredo, Amato Alessandra, Pisano Massimo, Sangiovanni Giuseppe, Abdellatif Dina, Fornara Roberto, Simeone Michele
Department of Medicine and Surgery, University of Salerno, 84084 Salerno, Italy.
Department of Endodontics, Faculty of Dentistry, University of Alexandria, Alexandria 21526, Egypt.
Dent J (Basel). 2023 Mar 9;11(3):78. doi: 10.3390/dj11030078.
To enhance cleaning during retro-preparation in endodontic microsurgery.
Forty mandibular premolars were instrumented, filled with a single cone technique, and then retro-preparation was performed and assigned to experiment A. In group A1, the cavity created by the retro preparation was cleansed with 2 mL of normal sterile saline. In group A2, the retro cavity was cleaned with 2 mL of sterile saline after the retro preparation. All the irrigation solutions mentioned above were delivered using an endodontic needle with a lateral vent and a gauge of 30. Subsequently, in group A2, 17% EDTA gel and 5.25% gel were inserted into the cavity and activated using ultrasonic tips. After the irrigation protocols, the specimens were decalcified for histological evaluation.
In the experiment, the amount of hard tissue debris was significantly greater in group A1 compared to group A2 ( < 0.05).
The samples in group A2, where the new protocol was performed, showed statistically significant results.
提高牙髓显微外科倒预备过程中的清洁程度。
选取40颗下颌前磨牙进行根管预备,采用单锥技术充填,然后进行倒预备,并分配至实验A组。在A1组,倒预备形成的窝洞用2 mL无菌生理盐水冲洗。在A2组,倒预备后用2 mL无菌生理盐水冲洗窝洞。上述所有冲洗液均使用带有侧孔、规格为30号的根管针输送。随后,在A2组,将17%乙二胺四乙酸(EDTA)凝胶和5.25%凝胶注入窝洞,并用超声头激活。冲洗方案实施后,对标本进行脱钙处理以进行组织学评估。
在实验中,A1组的硬组织碎屑量显著多于A2组(<0.05)。
实施新方案的A2组样本显示出具有统计学意义的结果。