The first theatre premiere at the 74th Dubrovnik Summer Festival, a co-production with the Marin Držić Theatre See How Lokrum Brushes Its Teeth directed by Paolo Tišljarić based on the eponymous Ivana Lovrić Jović novel, was held on the Island of Lokrum last night, 12 July under the auspices of Hrvatska elektroprivreda (Croatian Electric Company).