Dr. Brennan has been my dentist for as long as i can remember. I've had few tooth problems but, the ones I've had(cavities) were fixed painlessly. The technology the office uses for teeth cleaning is top notch and makes visits very pleasent. The staff and hygenists are also very friendly and very skilled. I make a visit to Dr. Brennans office every time I'm back in detroit to get my teeth cleaned. He's the only dentist i trust.