My Louise is now 4 and still chews on wood occassionally. I have switched to only hard cat treats and feed her 1/4 of her daily food, 4 times a day. This seems to have helped alot. I feed them science diet adult indoor cat food and purina urinary tract dry food mixed with a little fancy feast wet food. I think she is getting enough nutrients and hard texture in her diet to not go for the wood corners....although, if I miss a feeding time by more then an hour, she will let me know by scratching the cabinet door and if I'm not paying attention, she will start knawing on something wood that is very near by me to let me know. Pretty smart of her actually....Her sister Thelma, just sits and stares at me until I'm uncomfortable enough to realize she's hungry....you know that "glare"......LOL

Good luck to all still having an issue, especially with splinters, vomit and blood. I'd try more frequent small, dry food feedings to see h ow that works, if not, maybe some paxil.....it worked for my friends cat.....B