Meet The Doctors

Genesis Dental Group Mission Viejo – Comprehensive Dentistry - Orthodontics

The doctors at Genesis Dental Group offer comprehensive dental services.  With doctors specializing in various aspects of dentistry, they are able to provide an array of different services in-house, decreasing the need to refer patients out to specialists, and decreasing the amount of time between treatments.


Robert T. Cadalso Jr. D.D.S.(General Dentistry, Sedation Dentistry)


Professional Associations:

American Dental Association - ADA

California Dental Association - CDA

Orange County Dental Society - OCDS  

Academy of General Dentistry - AGD

American Dental Society of Anesthesiology  - ADSA

California Dental Society of Anesthesiology - CDSA

American Academy of Sleep Medicine - AASM 

American Academy of Orofacial Pain (AAOP)



University of Southern California School of Dentistry (2013-2016)

    -Master of Science (MS) Oral Facial Pain - Oral Medicine

University of Southern California School of Dentistry (1978-1982)

    -Doctor of Dental Surgery (DDS)

California State University at Fullerton (1971-1977)

    -Biological Sciences Bachelor of Science Degree (BS)

IV Sedation Anesthesia Program USC

    -IV Certificate CA.-#CS387

Dr. Cadalso has been a resident of South Orange County since moving to Southern California in 1968.  A graduate of Santiago High School and then California State University in Fullerton.  Dr. Cadalso was a Masters Degree candidate in Developmental Biology before attending the University of Southern California (USC) for his doctorate in dental surgery received in 1982. Since his licensure in 1982 as a general dentist in California Dr. Cadalso has received additional training in Oral Surgery and Anesthesia and he holds an Intra-Venous Conscious Sedation Certificate in the state of California. In 2016 Dr. Cadalso obtained his Masters Degree in Oral Facial Pain and Oral Medicine at University of Southern California. 


Danielle Cao,  D.D.S. (Orthodontics) 



Professional Associations:

American Dental Association

American Association of Orthodontists

American Board of Orthodontists

Pacific Coast  Society of Orthodontists

Orange County Dental Society

California Dental Association



Board Certified, Diplomate of Orthodontics 

University of Texas, San Antonio  (2009)

    -Postgraduate residency in Orthodontics

University of Califonia, Los Angeles  (2006)

    -Doctorate of Dental Surgery (DDS)

University of California, Irvine  (1998)

    - Bachelor of Science (BS)

Invisalign Certified

Dr. Cao graduated from the University of California, Irvine majoring in biological sciences.  She later received her doctorate from the University of California, Los Angeles, School of Dentistry, followed by completion of the orthodontics specialty from The University of Texas, San Antonio. Pushing further to demonstrate her knowledge and clinical skills, she earned the honor of Diplomate status with the American Board of Orthodontics, the highest level of professional achievement.  Dr. Cao is an active member within the dental community as noted by her professional affiliations.       



Dr. Tyson Curtis, D.D.S  (Endodontics)


Professional Associations:

 American Dental Association

California Dental Association

American Association of Endodontics

Orange County Dental Society

American Board of Endodontics - Diplomate



University of California Santa Barbara (1998)

    - Bachelor of Science (BS)

University of California Los Angeles, School of Dentistry (2004)

    - Doctor of Dental Surgery (DDS)

Oregon Health and Science University, Advanced Specialty Program in Endodontics (2012)

     - Certificate in Endodontics


Born and raised in Southern California, Dr. Curtis was a 1993 graduate of Los Alamitos High School.  He received his Bachelor of Science degree in biological sciences at the University of California Santa Barbara in 1998 and graduated from the UCLA School of Dentistry in 2004.  He completed a 1 year general practice residency at the West Los Angeles VA Hospital in 2005 and worked in the general practice of dentistry in Long Beach until 2009. 

Dr. Curtis found a passion for endodontics in dental school at UCLA which led him to seek a specialist education and certification in Oregon.  From 2009 to 2012 Dr. Curtis was engaged in a fellowship and endodontics residency at the Oregon Health and Science University in Portland.  His joint research project with the director of the post-doctoral program at OHSU involving modern materials and methods in edodontics was published in 2012.  Upon receiving his specialist certification he returned to Orange County to practice.  Dr. Curtis is known for the sincere care that he shows his patients.  He is gratified by relieving his patients from pain and saving their natural teeth when they are at risk from pulpal disease.

During his free time Dr. Curtis is an avid fisherman and free-diver.  He also enjoys standup paddleboarding, kayaking, skiing/snowboarding, playing guitar and piano as well as drawing, painting and sculpting. 

 Chad A. Tomazin, D.D.S., Dental Anesthesiologist 



Professional Associations:

American Dental Association

California Dental Association

American Society of Dentist Anesthesiologists



University of California Davis  (2000-2004)

     - Bachelor of Arts (BA)

University of Southern California School of Dentistry (2005-2009)

     - Doctor of Dental Surgery (DDS)

Loma Linda University, Dental Anesthesia Program (2009-2011)

     - Graduate 

Dr. Chad Tomazin received  his Bachelor of Arts degree from University California Davis in 2004 and went on to earn his Doctor of Dental Surgery from USC in 2004.  At that point Dr. Tomazin entered into and completed  the Loma Linda University Dental Anesthesiology Program, a two year post doctorate residency program in dental and medical anesthesiology.  Dr. Tomazin has had extensive training providing anesthesia services for patients as young as 11 months of age.  His dental background offers the ability to modify the anesthesia for the needs of the dentist as well as the patient.  

Dr. Tomazin is currently a part-time faculty member of the Loma Linda University Dental Anesthesiology Program as an instructor in the simulation center for dental anesthesia residents.  This allows him to keep up to date on all the current and upcoming trends in his field.