Biomaterial Database

Assessment of tooth mobility using small loads. I. Technical devices and calculations of tooth mobility in periodontal health and disease. 1980

R Persson, and A Svensson

An apparatus for recording tooth mobility of maxillary anterior teeth using loads below 100 p in a bucco-lingual direction is described. Strain gauges and a differential transformer are used as sensors of force and displacement. The displacement is recorded at the same location on the tooth surface and in the same direction as the loading force. Compressed air is used as the source of force. Documentation of signals is obtained by means of a two-channel potentiometric recorder. Tooth mobility was studied in six subjects with healthy periodontal conditions and in six subjects with moderate periodontal disease. Repeated measurements under standardized conditions demonstrated a satisfactory reproducibility of the measuring method. Tooth mobility curves within the 20-80 p loading range were transformed to lines of regression. Analysis of such lines seems to provide further information of tooth mobility qualities as compared to previous methods of tooth mobility measurements.

UI	MeSH Term	Description	Entries
D010510	Periodontal Diseases	Pathological processes involving the PERIODONTIUM including the gum (GINGIVA), the alveolar bone (ALVEOLAR PROCESS), the DENTAL CEMENTUM, and the PERIODONTAL LIGAMENT.	Parodontosis,Pyorrhea Alveolaris,Disease, Periodontal,Diseases, Periodontal,Parodontoses,Periodontal Disease
D010517	Periodontics	A dental specialty concerned with the histology, physiology, and pathology of the tissues that support, attach, and surround the teeth.	Periodontal Medicine,Medicine, Periodontal,Medicines, Periodontal,Periodontal Medicines,Periodontic
D010519	Periodontium	The structures surrounding and supporting the tooth. Periodontium includes the gum (GINGIVA), the alveolar bone (ALVEOLAR PROCESS), the DENTAL CEMENTUM, and the PERIODONTAL LIGAMENT.	Paradentium,Parodontium,Tooth Supporting Structures,Paradentiums,Parodontiums,Periodontiums,Structure, Tooth Supporting,Structures, Tooth Supporting,Supporting Structure, Tooth,Supporting Structures, Tooth,Tooth Supporting Structure
D003799	Dental Stress Analysis	The description and measurement of the various factors that produce physical stress upon dental restorations, prostheses, or appliances, materials associated with them, or the natural oral structures.	Analyses, Dental Stress,Analysis, Dental Stress,Stress Analyses, Dental,Stress Analysis, Dental,Dental Stress Analyses
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014086	Tooth Mobility	Horizontal and, to a lesser degree, axial movement of a tooth in response to normal forces, as in occlusion. It refers also to the movability of a tooth resulting from loss of all or a portion of its attachment and supportive apparatus, as seen in periodontitis, occlusal trauma, and periodontosis. (From Jablonski, Dictionary of Dentistry, 1992, p507 & Boucher's Clinical Dental Terminology, 4th ed, p313)	Mobilities, Tooth,Mobility, Tooth,Tooth Mobilities