Temporal area (maxillary 

 second premolar). 



Mandibular area (maxillary 

 second and third premo- 

 lars). 



Hyoid area (mandibular sec- 

 ond premolar ; first and 

 second molars). 



Superior laryngeal area 

 (mandibular third molar). 



The points of maximum intensity are ringed. 



Pig. 49. Diagram to show areas of referred pain in distribution of fifth 

 nerve due to affections of the various teeth (Side view). (From drawing 

 by T. Wingate Todd.) 



