Mokena Crossings Family Dental. is looking for a. Part-Time experienced Dental Assistant. to join our team 2 days a week. Thursdays 9 a.m. 5 p.m. Fridays 8 a.m. 2 p.m. About Mokena Crossings Family Dental. Mokena Crossings Family Dental, like each Heartland Dental supported office, is unique to the community and the patients they serve. Join a 10 person team that thrives on collaboration, communication and community. Located on West 190th Street ...