Dentist Appleton, WI - Dennis P. Quinlan, DDS Looking for comfortable, confident and convenient care from dentists in Appleton? Youve come to the right place. From the minute you walk into our office you will notice a difference at Dennis P. Quinlan, DDS. We care about you, your family and your friends, and were here to help you achieve your healthiest, brightest smile. At Dennis P. Quinlan, DDS we know every persons dental needs are unique. Thats why we offer a comprehensive selection of treatment options in a comfortable, convenient atmosphere. Were confident we can provide superior dental care that no other dentist in Appleton can offer.