. Elementary and dental radiography . ar, 1 feel tolerably sure, before I make the picture, thatthe tooth will be found somewhere in the jaw. When the missing toothis a central, lateral, bicuspid, or lower cuspid, I am in doubt as towhat to expect. My experience teaches me that when these teeth aremissing they are just as likely to be entirely absent from the jaw aspresent in it. and simply unerupted. So far, I have never seen eitherlong delayed eruption or congenital absence of the first r second the tir-t publication of the above. Dr. Ottolengui has reportedtwo interesting cases
. Elementary and dental radiography . ar, 1 feel tolerably sure, before I make the picture, thatthe tooth will be found somewhere in the jaw. When the missing toothis a central, lateral, bicuspid, or lower cuspid, I am in doubt as towhat to expect. My experience teaches me that when these teeth aremissing they are just as likely to be entirely absent from the jaw aspresent in it. and simply unerupted. So far, I have never seen eitherlong delayed eruption or congenital absence of the first r second the tir-t publication of the above. Dr. Ottolengui has reportedtwo interesting cases (Items of Interest, February [9, [913), fromwhich record I quote in part, as follows: THE US US OF THE RADIOGRAPH IN DENTISTRY [53 Very shortly after Dr. Raper had published themissing quoted statement, that up to that time he had not first molar. seen a case wherein first or second molars were con- genially absent, a little girl patient of mine came infor her periodical examination, and I noted that since her previous visit. Fig. c. Patient aged 13. Right side. Two upper and one lower molar M. McKee, of New York.) (Radiograph by she had erupted three first permanent molars, but the fourth had notappeared. I immediately began to wonder whether or not 1 was about todiscover an authentic case of congenital absence of a first molar. I sayauthentic, because in records of this kind it is not always that one maybe sure that the history is authentic. But in this particular case therecan be no doubt. The child was the sister of another girl in my care andhad been under my observation since she was four years of age. I havecasts of her mouth at the age of five, which show the primary denturecomplete. I may add also that there never had nor has been any caries,and consequently there was no possibility that a molar had been extracted,a suspicion always warranted when we find a first molar absent from the 154 DEXTAL mouth of an adult. An ordinary small mouth radi
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