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Abstract：
OBJECTIVE: There is no long-term study on the comparison of indirect pulp therapy with ferric sulfate pulpotomy in primary molars. This retrospective study aimed to compare the success rates of ferric sulfate pulpotomy with those of indirect pulp therapy in primary molars during a 4-year follow-up.
METHODS: A total of 114 primary molars from 38 children (16 females and 22 males) with deep carious lesions were selected. Among these molars, 71 indicated for ferric sulfate pulpotomy and 43 indicated for indirect pulp therapy were treated under general anesthesia according to a standard protocol by two senior pediatric dentists. Clinical and radiographic assessments for determining success rates were performed using established criteria at initial, post-operatively, and at 24 and 48 months. Data were analyzed using Fisher\'s exact test to compare success rates of ferric sulfate pulpotomy and indirect pulp therapy at the 24- and 48-month follow-ups.
RESULTS: The overall success rates for indirect pulp therapy and ferric sulfate pulpotomy were 100% (43/43) and 91.5% (65/71), respectively, at the 24-month follow-up; the difference was not significant (P = 0.08). However, the success rate for indirect pulp therapy (93.0%, 40/43) at the 48-month follow-up was significantly higher than that for ferric sulfate pulpotomy (70.4%, 50/71) (P = 0.008).
CONCLUSIONS: Indirect pulp therapy showed a significantly higher success rate at the 4-year follow-up than did ferric sulfate pulpotomy for treating deep carious lesions in primary molars. Earlier exfoliation was observed after treatment with ferric sulfate pulpotomy compared to indirect pulp therapy.
METHODS: A total of 114 primary molars from 38 children (16 females and 22 males) with deep carious lesions were selected. Among these molars, 71 indicated for ferric sulfate pulpotomy and 43 indicated for indirect pulp therapy were treated under general anesthesia according to a standard protocol by two senior pediatric dentists. Clinical and radiographic assessments for determining success rates were performed using established criteria at initial, post-operatively, and at 24 and 48 months. Data were analyzed using Fisher\'s exact test to compare success rates of ferric sulfate pulpotomy and indirect pulp therapy at the 24- and 48-month follow-ups.
RESULTS: The overall success rates for indirect pulp therapy and ferric sulfate pulpotomy were 100% (43/43) and 91.5% (65/71), respectively, at the 24-month follow-up; the difference was not significant (P = 0.08). However, the success rate for indirect pulp therapy (93.0%, 40/43) at the 48-month follow-up was significantly higher than that for ferric sulfate pulpotomy (70.4%, 50/71) (P = 0.008).
CONCLUSIONS: Indirect pulp therapy showed a significantly higher success rate at the 4-year follow-up than did ferric sulfate pulpotomy for treating deep carious lesions in primary molars. Earlier exfoliation was observed after treatment with ferric sulfate pulpotomy compared to indirect pulp therapy.
摘要：
目的：目前尚无关于原发性磨牙的间接牙髓疗法与硫酸铁牙髓切除术的长期比较研究。这项回顾性研究旨在比较硫酸铁牙髓切除术与间接牙髓治疗在4年随访期间的成功率。
方法：从38例儿童（女16例，男22例）中选择114颗原发性磨牙。在这些磨牙中，根据两名高级儿科牙医的标准协议，在全身麻醉下治疗了71例用于硫酸铁髓切除术和43例用于间接牙髓治疗。用于确定成功率的临床和影像学评估在初始时使用既定标准进行，术后,24个月和48个月。使用Fisher精确检验对数据进行分析，以比较硫酸铁牙髓切除术和间接牙髓治疗在24个月和48个月随访时的成功率。
结果：间接牙髓治疗和硫酸铁牙髓切除术的总体成功率分别为100％（43/43）和91.5％（65/71），分别,在24个月随访时；差异无统计学意义（P=0.08）。然而,间接牙髓治疗的成功率(93.0%，40/43）在48个月的随访中明显高于硫酸铁切除术（70.4％，50/71)(P=0.008)。
结论：在4年的随访中，间接牙髓疗法治疗原发性磨牙深部龋病变的成功率明显高于硫酸铁牙髓切除术。与间接牙髓疗法相比，用硫酸铁牙髓切除术治疗后观察到较早的剥脱。
方法：从38例儿童（女16例，男22例）中选择114颗原发性磨牙。在这些磨牙中，根据两名高级儿科牙医的标准协议，在全身麻醉下治疗了71例用于硫酸铁髓切除术和43例用于间接牙髓治疗。用于确定成功率的临床和影像学评估在初始时使用既定标准进行，术后,24个月和48个月。使用Fisher精确检验对数据进行分析，以比较硫酸铁牙髓切除术和间接牙髓治疗在24个月和48个月随访时的成功率。
结果：间接牙髓治疗和硫酸铁牙髓切除术的总体成功率分别为100％（43/43）和91.5％（65/71），分别,在24个月随访时；差异无统计学意义（P=0.08）。然而,间接牙髓治疗的成功率(93.0%，40/43）在48个月的随访中明显高于硫酸铁切除术（70.4％，50/71)(P=0.008)。
结论：在4年的随访中，间接牙髓疗法治疗原发性磨牙深部龋病变的成功率明显高于硫酸铁牙髓切除术。与间接牙髓疗法相比，用硫酸铁牙髓切除术治疗后观察到较早的剥脱。
