Lewis Alderson, 24, of Overton Road, St Martins, was jailed for a year when he appeared at Mold Crown Court today .
He had admitted driving while over the alcohol limit. Alderson denied two offences of causing serious injury by dangerous driving, but was convicted by trial.
At his sentencing hearing Recorder Robert John Philpotts also disqualified him from driving for two years and six months and said he would have to sit an extended test to drive again.
The court heard that in the early hours of December 1, 2019, Alderson was driving a Mini on the B5605 at Pentre near Chirk.
On a bend he crossed onto the opposite carriageway and was in collision with another vehicle.
The driver and passenger in the other car were both seriously injured.
When breathalysed by police, Alderson was found to have 61 microgrammes of alcohol in 100 millilitres of breath. The legal limit is 35 microgrammes.
Judge Philpotts was told Alderson did not underestimate the pain and suffering he has caused and that he had the chance of a job if he retained his liberty.