Ok, so our 5y/o absentmindedly chews things all the time. So far this week it's been a wooden sword (splinters in his mouth), Lego (luckily he didn't swallow it), the end of a plugged in phone charger cable (don't even get me started). He knows he shouldn't do it- he knows. He is perfectly capable of understanding why he shouldn't put things in his mouth. He doesn't do it when he is playing, or running. He doesn't chew his clothes very much at all (unless he is supremely anxious) which inwould prefer to him finding a sodding phone wire and gnawing on it.
We have tried all the usual stuff, chewellery, crunchy foods, ice, vibrating toothbrush, cold stuff, hot stuff, chew toys, sensory things like that. We obviously watch him as much as possible but sometimes we need to look at other things, then 2 minutes later you are looking at the mangled end of a laptop charger and thanking whatever deity is in charge of the electric circuits in the house that he hasn't had a shock from it.
The problem is that we can't get him to keep chewellery around his neck (it gets repurposed as a catapult, lasso, tow rope etc) and chew buddies that aren't attached to anything just get lost. He does have them, but they just don't... Stay. He has free access to crackers, chewellery, and if he could tell us he wanted something specific we would get it for him. But he can't explain it.
We have sensory therapy and all the stuff she says we do but I have to admit it isn't getting better. He took an AA battery out of a his pocket the other week and ended up in a and e with us trying to explain no, it wasn't a button battery, yes it was an AA battery, no, he just... Chewed it. And kept on chewing it untill it popped and he made a surprised sound. We were all watching TV and he had apparently picked it up from the ground outside and we didn't even realise. He was right next to us as we all watched a film, just quietly chomping away. There was a perfectly good blanket and chewellery literally next to him, he just didn't think.
I find it frustrating because I don't know what to do. He isn't the type of kid where he needs absolutely everything baby proofing, but I'm absolutely terrified one day he will chew through something or swallow something really dangerous. It doesn't seem to be any one thing, just literally whatever is at hand. I guess if I had to pin it down it happens more often when he is tired, but it isn't always, not by a long shot.
So what do I do? Is there anything we haven't thought of yet, some magical item or aide that solves it? Any exercises we can decide each day, or a mantra to repeat? Do we need to have some co sequences like oh if you chew something not food or chewellery then... I dunno, we take a sweet away? Have s time in? Or will this just go away over time? How many years (approximately) do I have before I can relax a bit knowing he isn't munching on live wires? I'm genuinely at a loss and would welcome any advice or input.