 Milestone Scientific Inc revealed that the re-opening of dentists in the US and globally helped the medtech group post a US2.3 million increase in revenue to US2.4 million in its second-quarter this year compared to US168,000 for the year earlier period. Gross profit for the three months to June 30, 2021, came in at US1.4 million versus US112,000 for the same quarter in 2020. 