Precision Endodontics, the Chula Vista root canal specialty practice of Dr. Christopher Oswald on F Street, delivers microsurgical endodontic care from a USC-trained, U.S. Navy veteran specialist near Third Avenue Village. General dentists throughout the 91910 corridor, including multi-provider offices such as Dental Group Palomar, refer complex pulpal and periapical pathology to this practice for diagnosis under surgical microscopy. Dr. Oswald earned his DMD from Tufts University in 2006, completed his Certificate of Endodontics at the University of Southern California as chief resident, and served over eleven years on active duty in the U.S. Navy Dental Corps — including assignments at Camp Pendleton, Naval Medical Center Portsmouth, and Naval Base Coronado. Retreatment of failed root canals and management of internal resorption sometimes require hospital-based imaging coordinated through Sharp Chula Vista Medical Center on Medical Center Drive, particularly for patients with complex medical histories. Microsurgical apicoectomy procedures employ operating microscopes at 8x to 25x magnification with ultrasonic retro-preparation tips and mineral trioxide aggregate retrofill material to seal resected root apices in teeth that fail conventional retreatment.