Well that could be the first time i heard about such relationship; most of the relationship regarding teething i heard from parents are cause of fever, cause of diarrhea.
During teeting children can get a stuffy nose, but a wheeze should not be present. When babies "cut" teeth an inflamitory process is set up. The gums become irritated and this can lead to a fever and other cold like symptoms. also when ever a babies immune defenses are challenged as you see when they get new teeth it allows other germs to gain access to thier developing immune system and they become more suseptable to cold viruses and other illnesses. I hope this helps. Dose him with tylenol and if you Dr. says it's ok with Motrin as tylenol won't help the inflamation of his gums and the motrin will. Keep his room well humidified and you could use some saline in his nose to help loosen secretions and that will allow them to drain out a little more easily. If he continues to wheeze you should get him to the Dr. as this could be signs of a true illness.