A rogue dentist who used nursing homes to perform involuntary dental surgery on helpless elderly patients — including one who was 99 years old — just so he could claim government cash could be back practising in two years. Dr Andrew Istephan — who also happens to be a former Liberal Party councillor — was driven by “speed and greed” and had “no moral compass” when he destroyed the teeth of elderly patients at five aged care facilities — all in a six week period — so he could claim up to $4,250 in federal government funding per patient. Of the 69 patients, 52 were unable to give informed consent and even among those who were able to consent, Dr Istephan failed to obtain it, according to a decision of the NSW Civil and Administrative Tribunal on Tuesday.