Some medicines, tricyclic antidepressants and antimalarials can also cause darkening of your gums The nastiest is the effect of acute necrotising periodontitis (sometimes known as trench mouth) which is advanced gum disease and the black colour is the result of dead tissue
The cost of replacing an airbag outright can be several hundred dollars, although it once again depends partially upon the exact make and model of the car that you're working with. Expect to pay on the order of $1000 to $1500 per airbag to be replaced. Number 3 -- Airbag Resetting. If you've been in an accident, and the airbags themselves have become deployed, you'll have to set them back up in order to be able to drive again.
Pricing for air conditioning will vary depending on a number of factors, but, in the long run, it will always be a better option than sticking to window air units. The national average cost is between $4,500 and $6,200, but it could be much higher (or lower) depending on your individual situation.enerally, ductwork can tack on additional $2,000 to $3,000, and that will vary depending on the home. However, if you are simply replacing your air conditioning unit, then there may be little to no added cost for this component.