Abstract:Objective To investigate the effects of Carisolv minimally invasive caries removal combined with resin filling on periodontal indices and pain levels in children with dental caries.Methods A total of 198 pediatric patients with dental caries admitted to our hospital from August 2024 to January 2025 were enrolled. They were randomly divided into a traditional group (n = 99, teeth = 123) and a Carisolv group (n = 99, teeth = 126) using the envelope method. The traditional group received conventional mechanical caries removal combined with resin filling, while the Carisolv group received Carisolv minimally invasive caries removal combined with resin filling. The clinical efficacy, perioperative indicators, periodontal indices, Visual Analog Scale (VAS) scores, and complications were compared between the two groups.Results The overall effective rate in the Carisolv group was higher than that in the traditional group (P < 0.05). There was no significant difference in caries removal time, filling time, or total treatment time between the Carisolv group and the traditional group (P > 0.05). The differences in gingival index (GI), sulcus bleeding index (SBI), and plaque index (PLI) before and after treatment in the Carisolv group were significantly higher than those in the traditional group (P < 0.05). Comparison of VAS scores before treatment and 1 week and 1 month after treatment in the Carisolv group and the traditional group demonstrated that they were different among the time points (F = 4 515.442, P < 0.05) and between the groups (F = 90.287, P <0.05), with lower VAS scores in the Carisolv group after treatment, indicating a relatively better analgesic effect. The change trend of VAS scores was also different between the groups (F =17.109, P <0.05). There was no significant difference in the overall incidence of complications between the two groups (P > 0.05).Conclusions Carisolv minimally invasive caries removal combined with resin filling has a significant effect on periodontal indices and pain levels in children with dental caries.