. Elementary and dental radiography / by Howard Riley Raper . 42. Wire apparently following canal inlower bicuspid. CANAL. Fig. 421. Same case a5 Fi^;. 420 made at dif-ferent angle. Wire seems to pass to distal,but in reality passes too far to the buccal.(See Fig. 422.) POINT TO BUCCAL OF CANAL Fig. 422. Diagram explanatory of Fig. 421. seen clearly and the case was diagnosed a perforation through the side ofthe root with the canal filling passing through it. 20. To State Definitely, From the Appearance of Flat Radio-graphs (Not Stereoscopic Radiographs) That Impacted Teeth Lieto the Lingual o
. Elementary and dental radiography / by Howard Riley Raper . 42. Wire apparently following canal inlower bicuspid. CANAL. Fig. 421. Same case a5 Fi^;. 420 made at dif-ferent angle. Wire seems to pass to distal,but in reality passes too far to the buccal.(See Fig. 422.) POINT TO BUCCAL OF CANAL Fig. 422. Diagram explanatory of Fig. 421. seen clearly and the case was diagnosed a perforation through the side ofthe root with the canal filling passing through it. 20. To State Definitely, From the Appearance of Flat Radio-graphs (Not Stereoscopic Radiographs) That Impacted Teeth Lieto the Lingual or Facial of the Other Teeth. It is practically always impossible to determine, from a single flatnegative, the facio-lingual location of an impacted tooth. The radio-dontist should make stereoscopic radiographs or he should refrain from 378 APPENDIX making himself absurd by making definite statements regarding some-thing of which he has no definite knowledge. 21. To Mistake a Small Cervical Filling For a Pulp Fig. 178 and the description of it. 22. To AtsurviE That a Filling in the Crown of a ToothEnters th
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