Dr. Karen Shibuya in Chula Vista's Eastlake area brings a University of Southern California dental education and a VA Medical Center/Loma Linda residency to general and cosmetic dentistry at 2452 Fenton Street. The practice's endodontic and periodontal capabilities handle root canal therapy and scaling in-house, coordinating complex orthodontic referrals with alignment specialists such as Smiles of Eastlake for interceptive and corrective cases. Established in 1994 as part of Shibuya & Kint DDS Inc, the office maintains BBB accreditation and ADA membership while serving patients from a second location on Third Avenue in addition to the Fenton Street suite. General services span preventive exams, composite and amalgam restorations, crown fabrication, and cosmetic procedures for patients across the Eastlake, Otay Ranch, and broader South Bay communities. Bruxism and TMJ-related cases presenting with occlusal wear sometimes require co-management with musculoskeletal providers such as Ignite Chiropractic for myofascial tension relief. Endodontic retreatment protocols utilize rotary nickel-titanium file systems with sodium hypochlorite irrigation to debride and re-obturate previously treated canals, preserving natural tooth structure before final crown restoration.