Abstract
Objectives
To compare the effectiveness of remineralizing agents in the prevention and reversal of white spot lesions (WSLs), which occur during fixed orthodontic treatment, through a systematic review and network meta-analysis.
Materials and methods
We reviewed controlled randomized clinical trial (RCT) data querying nine databases combined with a manual search (last search date: March 10, 2020). Of 2273 identified studies, 36 RCTs were finally included. After study selection and data extraction, pair-wise and network meta-analyses were performed to analyze the effectiveness of remineralizing agents in the prevention and reversal of WSLs in the short term (≤ 3 months) and long term (> 3 months). The risk of bias was assessed based on the Cochrane guidelines. Statistical heterogeneity, inconsistencies, and cumulative ranking were also evaluated.
Results
In terms of WSL prevention, sodium fluoride (NaF) varnish had the highest cumulative ranking for the short-term decalcification index (99.3%); acidulated phosphate fluoride (APF) foam ranked first for long-term incidence (96.9%), followed by difluorosilane (Dfs) varnish and high-concentration fluoride toothpaste (HFT) (79.4% and 77.4%, respectively). In the reversal of WSLs, no significant difference was found among different agents or their combinations for the two available outcomes (short-term integrated fluorescence loss and short-term percentage of fluorescence loss).
Conclusions
In the prevention of WSLs, APF foam showed the best remineralizing effectiveness in the long term (after debonding), followed by Dfs varnish and HFT. It is unclear whether remineralizing agents can effectively reverse WSLs based on the existing evidence.
Clinical Relevance
APF foam may be recommended as a remineralizing agent for preventing orthodontically induced WSLs.
PROSPERO registration number
CRD42019116852.
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This work was supported by the National Natural Science Foundation of China (Nos. 81571004, 81500884, 81901044 and 82071147) and the Applied and Fundamental Research Program funded by the Department of Science and Technology of Sichuan Province (No. 2018JY0558).
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HH and CF contributed equally to this study. HH, CF, WL, FH, and HL conceived the study. HH, CF, and YS developed the search strategies. HH and CF wrote the first draft. ZJ, LG, SS, YR, LW, FH, and HL revised the draft critically. HH and CF independently screened the studies and extracted the data from the included studies. HF, CF, ZJ, FH, and HL assessed the risk of bias and summarized the evidence. HH, CF, and LG performed the statistical analysis. FH and HL arbitrated in the cases of disagreement. All authors gave their final approval and agree to be accountable for all aspects of the work.
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Hu, H., Feng, C., Jiang, Z. et al. Effectiveness of remineralizing agents in the prevention and reversal of orthodontically induced white spot lesions: a systematic review and network meta-analysis. Clin Oral Invest 24, 4153–4167 (2020). https://doi.org/10.1007/s00784-020-03610-z
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DOI: https://doi.org/10.1007/s00784-020-03610-z