Naperville Family Dentist Joseph A. Haselhorst in downtown Napervile. Informing patients about Modern Dentistry and the care we provide in our Naperville dental office. Our philosophy is to educate our patient about the nature and purpose of different dential and hygiene treatments. Proper dental and hygiene care are important to your overall health, by educating you on the meaning of basic dental terms and informing you on how to care for your teeth we place you on the path to life long good oral health.