1. Effingham, Ill.-based Heartland Dental added partner practices in Pensacola and Orlando.
2. Boca Raton, Fla.-based Sage Dental opened an office in St. Johns and Jacksonville.
3. Parkview Dental Partners, a Sarasota, Fla.-based DSO, gained investment from private equity firm Cathay Capital.
4. Nashville, Tenn.-based Southern Orthodontics Partners affiliated with Reed Orthodontics in Naples.