BOTELLA, A [An unusual radiogram of a periodontal deposit of tartar]. [electronic resource] - Journal de radiologie, d'electrologie & archives d'electricite medicale Dec 1958 - 903 p. digital Publication Type: Journal Article ISSN: 0368-394X Subjects--Topical Terms: Dental CalculusHumansPeriodontal LigamentPeriodontium--pathologyRadiographyTooth--diagnostic imaging