Passed away peacefully at Grand River Hospital, Kitchener on Monday, December 4, 2017 at the age of 64. Loving son of Josephine Poweska. Brother of Greg (Mary) Poweska. Uncle to Sonya Poweska (Craig Sifton) and Adam (Joanna) Poweska. Great-uncle to Sora and Emery Sifton-Poweska and Maxon and Leo Poweska. Sadly missed by his friends, extended family and four-legged friend, Bear. Predeceased by his father John Poweska (2009). David was a dentist and previously owned his own practice in Cambridge (Hespeler). In lieu of flowers, donations may be made to Grand River Hospital, Dialysis Unit www.grhosp.on.ca would be greatly appreciated.