The Whitmar Medical Dental Building - 16315 Whittier Blvd., Suite 203, Whittier, CA 90603Expert Care for Healthy Gums and Smiles
Diane Costandi, DDS, MS (Periodontist)
Dr. Diane Costandi received her Doctor of Dental Surgery from the University of the Pacific, Arthur A. Dugoni School of Dentistry in 2012. She then completed an Advanced Periodontology Residency at the Herman Ostrow School of Dentistry of USC in 2015 while also reviving a Master of Science degree in craniofacial biology. Prior to completing her dental degree, Dr. Costandi also completed a Bachelor of Science in molecular, cell and developmental biology from the University of California, Los Angeles. Dr. Costandi is board certified in Periodontics and belongs to:
- American Academy of Facial Esthetics
- The American Academy of Periodontology
- The American Board of Periodontology
- The American Dental Association®
- The California Dental Association
- The Academy of Osseointegration
- The Harbor Dental Society
- America’s Best Dentist 2026 award recipient
In her free time, Dr. Costandi enjoys reading, exploring the outdoors and spending time with her children and family.
Non-Surgical Periodontal Services Provided:
- Comprehensive Periodontal Examination
- Scaling and Root Planing
- Periodontal Maintenance
- Homeopathic Remedies
- Oral Hygiene Instruction
- Periodontal Disease Education
Surgical Periodontal Treatments:
- Oral Biopsy
- Frenectomy
- Gingivectomy
- Open Flap Debridement
- Crown Lengthening (Functional & Esthetic)
- Orthodontic Tooth Exposure
- Tori Removal
- Osseous Surgery
- Tooth Extraction
- Sinus Lift
- Bone Grafting
- Dental Implant Therapy
- Soft Tissue Grafting
Facial Aesthetic Treatment:
- Non-surgical Black Triangle Treatment
- Non-Surgical Gingival Recession Treatment Through Collagen Biostimulation
- Dental Hypersensitivity Treatment
- TMJ & Facial Pain Therapy
- Botulinum Toxin Injectables
- Dermal Fillers
We are proud to provide specialized care in orthodontics and periodontics in Whittier, California, and surrounding areas, including La Habra, Fullerton, Brea, La Mirada and Hacienda Heights, California. Call 562-943-0234 today to schedule your appointment and learn more.
