Kent 298 and 118 for 4 (Denly 59) lead Gloucestershire 149 (Dent 67, Claydon 4-35) by 267 runs
Joe Denly's second half-century of the game and a four-wicket blast by Mitch Claydon extended Kent's advantage over Gloucestershire by stumps on day two of the Specsavers County Championship match in Canterbury.
After hitting 62 in Kent's first innings, Denly followed with an equally vital 59 as Kent reached 118 for 4 for an emphatic overall lead of 267 going into the third day of the match.
Batting for a second time by Saturday's final session and having banked a 149-run lead, Kent suffered an early blow when Daniel Bell-Drummond prodded indeterminately at one from Liam Norwell to be caught at third slip with only three on the board.
Kent's second-wicket pairing of Denly and Joe Weatherley set out their stall to bat time for an hour, content to knock the shine off the new ball in the face of a testing examination from the likes of David Payne, Chris Liddle, Craig Miles and Norwell.
With the hard work seemingly done Weatherley, on 34, wastefully chased a wide one from Norwell to edge to the keeper, but Denly dug deeper to post a second successive half-century off 92 balls and with eight fours.
Denly lost his skipper Sam Northeast for 8 - off balance and aiming to leg he departed lbw to Miles - then just before stumps he threw the sink at one from Miles to snick to a jubilant Phil Mustard.
Earlier, Kent mopped up seven mid-session Gloucestershire wickets for 60 runs to skittle the visitors for 149 by tea for exactly half their first-day total.
Only Chris Dent's battling three-hour innings of 67 saved the visitors from total ignominy as Claydon bagged 4 for 35 and James Harris 3 for 42 as Gloucestershire succumbed inside 60 overs.
Dent, the 26-year-old Bristolian opener, laid anchor for 145 balls and fared better than most the face of some hostile, short pitched bowling from the Kent trio of Harris, Matt Coles and Claydon to take his side into the lunch break on 89 for 3.
Buoyed by the break, Claydon bowled with continued pace and hostility after the resumption and was rewarded four wickets as Gloucestershire lost five wickets for 11 runs in the space of 61 deliveries.
Only 15 balls after the resumption Graeme van Buuren (10) sparred off the back foot only to edge to be caught by the juggling James Tredwell at second slip, then George Hankins played over a leg stump yorker to make it 106 for 5.
Six overs later, Claydon struck again to end Dent's stoic innings. Prodding half forward the left-hander dragged the ball onto his leg stump, and, without addition to the total, Mustard edged one from Stevens low to third slip and Jack Taylor departed after feathering an airy drive to slip.
David Payne and Miles added 22 runs on the counter attack before Miles nibbled one into the cordon off Harris, who then had last man Liddle caught behind via an inside edge and deflection off his front pad to end the innings and force an early tea.
At the start of second day Kent struck in the third over when Harris, the on-loan seamer from Middlesex, removed night watchman Norwell lbw for 13.
Fourth-wicket pairing Will Tavare and Dent rode their luck, playing and missing and surviving concerted lbw shouts against Darren Stevens and Harris, yet both stood firm to post a 50 stand by the 31st over.
The partnership added 71 in 26.5 overs before Will Gidman struck in his only over of the day and moments before lunch, bowling Tavare off his pads as the right-hander aimed to work to leg.