Graduate Program in Dentistry, Federal University of Piauí, Teresina, Brazil.
Int J Paediatr Dent. 2023 Jul;33(4):335-345. doi: 10.1111/ipd.13056. Epub 2023 Feb 12.
Endodontic treatment of primary molars represents one of the challenges in pediatric dentistry. There is a lack of consensus in the literature about the endodontic techniques and filling paste for primary teeth with pulp necrosis.
To compare the effectiveness of the LSTR technique (lesion sterilization and tissue repair) with CTZ paste (chloramphenicol, tetracycline, zinc oxide and eugenol) and pulpectomy with ZOE paste (zinc oxide and eugenol) in the treatment of primary molars with pulp necrosis.
Eighty-eight primary molars with pulp necrosis from 70 children between the ages of 3 and 8 years were included. The teeth were randomized to the LSTR with CTZ paste group or pulpectomy with ZOE paste group. Clinical and radiographic evaluations were performed at 18, 24, 30 and 36 months.
At 36 months, clinical success was 86.4% in LSTR with CTZ paste and 90.9% in pulpectomy with ZOE paste (p = .45). Radiographic success was 43.2% in both groups (p = 1.00). The overall success was 40.9% in LSTR with CTZ paste and 43.2% in pulpectomy with ZOE paste (p = 1.00).
After 36 months of evaluation, the effectiveness of the LSTR technique with CTZ paste and pulpectomy with ZOE paste was similar for the treatment of primary molars with pulp necrosis.
儿童牙科中，前磨牙的牙髓治疗是一项挑战。对于牙髓坏死的年轻恒牙，文献中缺乏关于根管治疗技术和充填糊剂的共识。
比较 LSTR 技术（病变消毒和组织修复）与 CTZ 糊剂（氯霉素、四环素、氧化锌和丁香酚）以及牙髓切除术联合 ZOE 糊剂（氧化锌和丁香酚）治疗牙髓坏死的年轻恒牙的疗效。
纳入 70 名 3-8 岁儿童的 88 颗牙髓坏死的前磨牙。将牙齿随机分为 LSTR 联合 CTZ 糊剂组或牙髓切除术联合 ZOE 糊剂组。分别在 18、24、30 和 36 个月进行临床和影像学评估。
36 个月时，LSTR 联合 CTZ 糊剂组的临床成功率为 86.4%，牙髓切除术联合 ZOE 糊剂组为 90.9%（p=0.45）。两组的影像学成功率均为 43.2%（p=1.00）。LSTR 联合 CTZ 糊剂组的总成功率为 40.9%，牙髓切除术联合 ZOE 糊剂组为 43.2%（p=1.00）。
经过 36 个月的评估，LSTR 联合 CTZ 糊剂技术和牙髓切除术联合 ZOE 糊剂治疗牙髓坏死的年轻恒牙的效果相似。
