I have a copy of the April Journal of Oral and Maxillofacial Surgery. The article is "A New Minimally Invasive Technique for Cauterizing the Maxillary Artery and Its Application in the Treatment of Cluster Headache." It is written by Elliot Shevel, BDS.
It comes from South Africa. This was preformed on 5 patients. Four were cured immediately. Essentially, a probe was inserted intra orally to find the Maxillary Artery as it enters the Sphenopalatine ganglion via doppler and it is cauterized. One subject was being hit as this was done and the pain ceased. Promising.