This report demonstrates the value of routine intraoral roentgenograms of unerupted permanent teeth as an aid in the early diagnosis of congenital syphilis. The growing teeth, like the bones and other organs, may be affected in congenital syphilis. Hutchinson1described the screwdriver-shaped and notched permanent upper central incisors as the most common and characteristic clinical dental abnormality. A roentgenographic diagnosis of unerupted Hutchinson incisors was made first by Stokes and Gardner2in a patient aged 5 years and subsequently by Meyer-Buley3in a patient aged 2 years. Quinlan4and others5have reported similar diagnoses. While Moon6described a characteristic clinical appearance in the permanent first molars, roentgenograms of these teeth prior to eruption have been reported by Pincherle.6a REPORT OF CASE History.— J. W., a Negro girl, born Jan. 8, 1934, apparently had bronchopneumonia during infancy and possibly rickets. A diagnosis of congenital