手法を比較

	歯の動揺度評価	歯科における骨密度評価
分野	歯学	歯学
系統	Process / pipeline	Process / pipeline
提唱年	1950s (formalized assessment)	1985 (classification); modern CBCT 2000s+
提唱者	Multiple innovators (Miller, et al.)	Lekholm and Zarb (bone quality classification); Hounsfield units standardization
種類	Clinical mobility assessment	Radiographic and qualitative assessment
原典	Miller, S. C. (1950). Textbook of periodontia (3rd ed.). Philadelphia: The Blakiston Company.	Lekholm, U., & Zarb, G. A. (1985). Patient selection and preparation. In Brånemark, P.-I., et al. (Eds.), Tissue-integrated prostheses: Osseointegration in clinical dentistry. Quintessence Publishing, 199-209.
別名	tooth mobility testing, mobility grading, periodontal mobility	bone quality assessment, trabecular pattern analysis, bone density classification
関連	3	4
概要	Tooth mobility assessment is a clinical examination that evaluates the amount and direction of movement of a tooth when lateral force is applied. Increased tooth mobility indicates loss of periodontal support (bone loss), trauma from occlusion, or other pathology affecting tooth attachment. Systematic mobility grading enables quantification of tooth stability, guides treatment planning, and assesses prognosis in periodontal disease and post-traumatic cases.	Bone density assessment in dentistry evaluates the quantity and quality of alveolar bone supporting teeth or serving as an implant site. Assessment integrates radiographic imaging (panoramic radiographs, periapical films, and cone-beam computed tomography) and clinical examination to classify bone density into four categories (Type I to IV) and to quantify bone loss. Accurate bone density assessment is critical for implant planning, predicting implant success, and adjusting surgical and loading protocols to account for bone quality variations.