What a "breath of fresh air" to find a dentist on this forum. It is a dentist who saved my life from the ravages of facial pain and I will ever be thankful for his expertise and quality care and concern. You are ever so kind to be concerned about doing what we call in education" best practices" for treating a patient with RSD. I have both RSD and fibromyalgia and must receive special treatment for my dental care. Also, I am aware of the consequences of dental procedures which can cause painful reactions due to both conditions.
From experience I can tell you that short procedures are best for the patient. Also, from experience I can tell you that any extraction (at least in my situation) caused extended periods of pain far beyond normal. My facial pain specialist (dentist) gave me injections directly into the gums to calm down the nerves which became hyper - excited due to the extractions. His injections provided almost immediate relief. (Thus, do not be surprised if your patient experiences continued pain) Also, I know that I cannot have any root canals as they are even more apt to cause nerve irritation. Thus I will choose to have an extraction and follow up injections.
You may want to consult with facial pain specialists in the area to see if they have suggestions on how to treat RSD and/or fibro patients.

I could write a book about these conditions and how they have a nervous system connection and we must be concerned about dental and medical treatment. My chronic pain condition began in my face from a dental procedure.
Thank you for your concern and interest. I do hope you continue to check in on this as well as other forums. There is also a dentistry forum here.
Best wishes,
Sydney