Having made an impact at international level as a wicket-keeper/batsman, Buttler has been selected for the first of a two-Test series against Pakistan purely as a batsman.
But he has not played first-class cricket for Lancashire, his English county, since the end of last season.
The selection panel feels that this is the perfect moment to reintroduce Jos to Test cricket, where he has already enjoyed some success, including a stint playing as a specialist batsman at number seven.
“Jos is playing with great confidence and flair, and he will bring unique qualities to the Test team.”
“Jos Buttler is an outstanding talent, who is already a central part of England’s white ball teams,” said Smith in an England and Wales Cricket Board statement.
But, after England’s tour series losses in Australia and New Zealand, top-order batsman James Vince was dropped after a run of low scores at Test level despite the Hampshire batsman making an unbeaten 201 against Somerset on Monday.
Jonny Bairstow, who succeeded Buttler as England’s Test keeper, has retained his place behind the stumps having become a mainstay of skipper Joe Root’s side with both bat and gloves.
Bess, 20, has played just 16 first-class matches. But he starred for MCC in the Champion County match against Essex in March where he took eight wickets in the match and scored a century in a victory over the county Champions in Barbados.
England squad: Joe Root (Yorkshire, capt), James Anderson (Lancashire), Jonny Bairstow (Yorkshire, wkt), Dom Bess (Somerset), Stuart Broad (Nottinghamshire), Jos Buttler (Lancashire), Alastair Cook (Essex), Dawid Malan (Middlesex),Ben Stokes (Durham), Mark Stoneman (Surrey), Chris Woakes (Warwickshire), Mark Wood (Durham).