Dental X-ray film holder with plural grooves opening in opposite directions to support X-ray films

Claim 1

A HOLDER FOR RETAINING A DENTAL X-RAY FILM IN THE DESIRED POSITION IN THE MOUTH OF A PATIENT COMPRISING: (A) A PLATE HAVING FIRST AND SECOND PORTIONS, SAID FIRST PORTION BEING ENGAGEABLE BETWEEN THE TEETH OF THE UPPER AND LOWER JAWS OF THE PATIENT WITH SAID SECOND PORTION DISPODED WITHIN THE MOUTH OF SAID PATIENT; (B) A CHANNEL-SHAPED FLANGE HAVING A PAIR OF SPACED RESILIENT WALLS AND A BASE PORTION CONNECTING SAID WALLS, ONE OF SAID WALLS HAVING AN EDGE PORTION OPPOSITE SAID BASE CONNECTED TO SAID SECOND PORTION OF SAID PLATE, SAID WALLS AND BASE DEFINING A FIRST GROOVE THEREBETWEEN, SAID GROOVE OPENING IN A FIRST DIRECTION, SAID BASE, DEFINING THE BOTTOM OF SAID FIRST GROOVE, BEING SPACED FROM SAID PLATE SO TAHT A DENTAL X-RAY FILM CLAMPINGLY RETAINED BY SAID RESILIENT WALLS IN SAID FIRST GROOVE OCCUPIES A POSITION SUBSTANTIALLY CENTRALIZED WITH RESPECT TO THE PLANE OF SAID PLATE FOR EFFECTING AN EXAMINATION OF THE CROWN OF A TOOTH; (C) A RIB CONNECTED TO THE SECOND PORTION OF SAID PLATE AND SPACED FROM SAID ONE WALL OF SAID FLANGE CONNECTED TO SAID PLATE, SAID RIB AND SAID ONE WALL DEFINING A SECOND GROOVE, SAID SECOND GROOVE OPENING IN A SECOND DIRECTION OPPOSITE THAT OF SAID FIRST GROOVE SO THAT A DENTAL X-RAY FILM CLAMPINGLY ENGAGED IN SAID SECOND GROOVE, MAY BE EMPLOYED FOR EXAMINATION OF THE ROOT OF A TOOTH.