The short answer to this question is yes, in some cases. The type of treatment used will depend on the stage of the cancer and other factors such as age and overall health. Some non-surgical treatments for oral cancer include radiation therapy, chemotherapy, targeted therapy, and immunotherapy.

Radiation Therapy uses high-energy X-rays or other particles to kill cancer cells. This type of therapy is typically used in combination with other treatments such as surgery or chemotherapy. Radiation therapy may also be used as a primary treatment for early stages of oral cancer when it has not spread beyond the mouth or throat area.

Chemotherapy uses drugs to kill cancer cells in the body. This type of treatment may be used alone or in combination with radiation therapy or surgery depending on the stage of the disease and your general health. The drugs are usually administered through either pills or injections into a vein or muscle, but they can also be applied directly to the tumor site in some cases.

Targeted Therapy works by interfering with specific molecules involved in cancer cell growth and survival. This type of treatment may be combined with chemotherapy drugs to increase their effectiveness against tumor cells while reducing their side effects on healthy cells in the body. Targeted therapies can also be used as stand-alone treatments for certain types of cancers including oral cancers that have not spread beyond localized areas within the mouth and throat region.

Immunotherapy works by stimulating your immune system to recognize and attack cancer cells more effectively than it could on its own. Immunotherapies are generally well tolerated compared to traditional treatments such as chemotherapy, but they still carry risks that should be discussed with your doctor before beginning any course of treatment. They may also be used in combination with other therapies depending on the stage of your disease and other medical factors unique to each individual patient's situation.
Conclusion:
Ultimately, there are many ways to treat oral cancer without resorting to surgery; however, it’s important to speak with an experienced oncologist who can provide you with more information about what options would work best for you based on your particular diagnosis and medical history.

Different types of treatments work better for different people at different stages of their disease so make sure you fully understand all available options before making any decisions regarding your care plan moving forward!