Beautiful Smiles        Microscopically Assisted Dentistry        Gentle Dentistry


 Gregory C. Dilger D.D.S.           General Dentist            1353 Edgewater St.          West Salem          (503) 378-0466   

PatientInformation Section
Oral Cancer Screening


Fluorescence Visualization Technology 


VelscopeThe VELscope system is a revolutionary hand-held device that provides oral health care professionals with an easy-to-use tool for the early detection of abnormal tissue. The VELscope was developed by the British Columbia Cancer Agency in collaboration with MD Anderson Cancer Center, with funding provided in part by the NIH. It is based on the direct visualization of tissue fluorescence and the changes in fluorescence that occurs when abnormalities are present. The VELscope hand piece emits a safe blue light into the oral cavity causing it to fluoresce. The clinician is then able to immediately view the different fluorescence response to help differentiate between normal and abnormal tissue. In fact, the VELscope is the only device cleared by the FDA and Health Canada to help discover Velscope demooral mucosal lesions that might not be apparent or visible to the naked eye and to help surgeons determine the appropriate surgical margin for tumor excision. Under examination with the VELscope, abnormal tissue typically appears as an irregular, dark area that stands out against the otherwise normal, green fluorescence pattern of surrounding healthy tissue.






• The incidence of oral cancer increased 11% in the United States in 2007 

• Unlike several other cancers, the survival rate for oral cancer has remained unchanged for decades 

• The overall 5-year survival rate for oral cancer is 52%, but when discovered early, it increases to 80% - 90% 

• Unfortunately, only 35% of oral cancer cases are diagnosed in the early stages.  

Why? Because there have been few advances made in screening techniques. 

• Pre-malignant changes actually start below the surface. These changes may not be apparent to the naked eye until the disease progresses to the surface. 





VELscope is intended to be used by a dentist as an adjunct to traditional oral examination by incandescent light to enhance the visualization of oral mucosal abnormalities that may not be apparent or visible to the naked eye, such as oral cancer or pre-malignant dysplasia. VELscope is further intended to be used by a surgeon to help identify diseased tissue around a clinically apparent lesion and thus aid in determining the appropriate margin for surgical excision. 




• Painless, non-invasive, with no rinses or stains required 

• An examination with the VELscope takes only one or two minutes  

• Disposable VELsheath/Barrier ensures asepsis 

• Disposable anti-fog cap helps maintain asepsis and protects the hand piece special filtering optics.



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Patient Testamonials


Dear Dr. Dilger:


It all started with my initial phone call to Dr. Dilger's office. I felt so comfortable from the start and after I came in for my first visit it's been all about what I want and what Dr. Dilger and his staff recommends for me. All around, it's been the best dental experience I've ever had.


Al P.




Going to the dentist used to be a nightmare experience for me. That's all changed when I came to Dr. Dilger. Dr. Dilger's office staff are so warm and welcoming. Visiting them is like going home. Dr. Dilger's calm and caring manner erased all my dental anxiety and for the first time in my life I found myself relaxed in a dental chair. Dr. Dilger and his staff really took the time to get to know me and my concerns. They talked with me about my fears and helped me address my anxiety. Now I visit the dentist and I'm not afraid. I can not express the difference Dr. Dilger has made in my dental life! Thanks so much Dr. D.


Molly F.




I love my new smile.  It was so easy too.  Nearly pain free.  I am considering my lower teeth at a later date.


Debbie E.