. Interpretation of dental and maxillary roentgenograms . Fig. 90. Fig. 91. Fig. 90.—Upper right canine and first premolar normal. Second premolar pulpless,partial root filling, slight peridental thickening at apex. The dark space above thepremolars is the maxillary sinus, separated from the roots of these teeth by a thinplate of bone. Fig. 91.—Upper right canine and first premolar contain vital pulps. Second pre-molar and first molar show filled roots extending up to but not encroaching onmaxillary sinus.

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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectradiographydental