Effects of Riboflavin Collagen Crosslinker on Dentin Adhesive Bonding Efficiency: A Systematic Review and Meta-Analysis.

Materials (Basel)

Restorative Dentistry Division, School of Dentistry, International Medical University Kuala Lumpur, 126, Jalan Jalil Perkasa 19, Wilayah Persekutuan Kuala Lumpur, Bukit Jalil, Kuala Lumpur 57000, Malaysia.

Published: February 2023

The aim of this study was to evaluate published data regarding riboflavin (RF) as a cross-linker for improved adhesive bond strength to dentin and to analyze previous studies for optimal concentration of riboflavin range suitable for dentin bond. Saliva and distilled water were used as storage media and aging time was 24 h and 6 months. Results of meta-analysis were synthesized using a statistical method of inverse variance in random effects with a 95% Confidence Interval (CI). Cochrane review manager 5.4.1 was used to determine results of the meta-analysis. In total, 3172 articles were found from search databases "PubMed", "Scopus", and "Google Scholar". Six of the fifteen studies were eligible for meta-analysis. Micro tensile strength shows significant improvement with the addition of riboflavin ( < 0.05) compared to without the addition of riboflavin from with 95% CI. A significant difference has been found in micro tensile bond strength between use of the riboflavin cross-linker and without use of the riboflavin crosslinker in the dentin adhesive system. With a 95% confidence interval (CI), the I for micro tensile strength was 89% with strong heterogeneity, Chi = 44.76, df = 5 ( < 0.00001), and overall effect size is Z = 2.22 ( = 0.03) after immediate aging. Chiang et al. 2013 shows maximum mean differences which is 38.50 [17.93-59.07]. After 6 months of aging in distilled water or artificial saliva micro tensile bond strength has been increased with the addition of riboflavin ( < 0.05). It can be clearly seen that pooled effect and 95% CI did not cross the line of no effect. With a 95% confidence interval (CI), the I for micro tensile strength was 96% with strong heterogeneity, Chi = 117.56, df = 5 ( < 0.00001), and overall effect size is Z = 2.30 ( = 0.02). Subgroup analysis proved a similar effect of distilled water and artificial saliva as storage media on micro tensile bond strength after incorporating riboflavin as a collagen crosslinker. An artificial saliva aged forest plot also showed considerable heterogeneity with I = 96%; Tau = 257.32; Chi = 94.37; df = 2 ( < 0.00001); test for overall effect, Z = 1.06 ( = 0.29). Riboflavin prior to or with bonding is recommended to improve the bonding of different adhesive systems.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9963098PMC
http://dx.doi.org/10.3390/ma16041701DOI Listing

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