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目前，由于银汞合金在口腔科仍大量使用，汞的污染必然涉及医生、护士和病人的健康，因此国外已开始用镓替代汞的研究，近来我们也做了这方面的探索。实验结果：镓银合金的早期抗压强度２４５．６０±５０．３８Ｍｐａ；压缩蠕变值０．０３２０±０．００４５％；固化２４ｈ后的抗压强度３２７．４０±３２．５３Ｍｐａ；硬化期间（２４ｈ）尺寸变化率０．１４±０．００％；急性毒性试验结果，ＬＤ５０７５００ｍｇ／ｋｇ，由此说明镓有可能替代汞作为牙体缺损的充填材料。
Currently, as amalgam is still widely used in dentistry, the pollution of mercury inevitably involves the health of doctors, nurses and patients. Therefore, foreign countries have started to study the substitution of mercury for gallium, and we have also done some research in this area recently. Experimental results: The early compressive strength of gallium-silver alloy is 245.60 ± 50.38Mpa; the compressive creep value is 0.0320 ± 0.0045%; the compressive strength after curing for 24h is 327.40 ± 32.53Mpa; 24h) dimensional change rate of 0.14 ± 0.00%; acute toxicity test results, LD507500mg / kg, indicating that gallium may replace mercury as filling material for dental defects.