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Effect of Galla Chinensis on Remineralization of Early Dentin Lesion
Hend Mahmoud Abdel-Azem1, Ahmed Fawzy Abo Elezz2, Rehab Khalil Safy2
1Restorative Department, Faculty of Dentistry, Suez canal University, Ismailia, Egypt.
Objective:
This study aimed to investigate the efficacy of the Galla chinensis extract (GCE) on early dentin lesion remineralization.
Materials And Methods:
Seventy-two dentin specimens were divided into three groups according to the treatment solution. In group S1, specimens were treated with GCE; in group S2, the specimens were treated with sodium fluoride (NaF); meanwhile, specimens of group S3 were treated with distilled water (DW). Each group was further subdivided into two subgroups according to the treatment time (1 minute and 5 minutes). An in vitro pH-cycling model for 12 days was done. Subsequently, surface microhardness (SMH) of the specimens, elemental analysis, and their micromorphological appearance were evaluated.
Statistical Analysis:
Data were statistically analyzed. One-way analysis of variance was used to compare numerical (parametric) data between more than two separate groups followed by post hoc Tukey.
Results:
There was no significant difference between the mean SMH of dentin between NaF and GCE groups. Regarding the time, the 5-minute treatment with NaF and DW groups recorded higher mean SMH value of dentin than the 1-minute treatment group. Meanwhile, for GCE groups, the 1-minute immersion recorded higher mean SMH value than the 5-minute immersion without any significant difference between them. The microhardness results were confirmed by environmental scanning electron microscope and energy dispersive X-ray analysis results.
Conclusion:
GCE could be used as an effective alternative for dentin remineralization.

