So sánh phương pháp

	Chỉ số DMFT	Chỉ số Vệ sinh Răng miệng
Lĩnh vực	Nha khoa	Nha khoa
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1938	1964
Người khởi xướng	Henry Klein, Cedric Palmer, and James Knutson	Jack Greene and James Vermillion
Loại	Epidemiological index	Clinical assessment index
Công trình gốc	Klein, H., Palmer, C. E., & Knutson, J. W. (1938). Studies on dental caries: I. Dental status and dental needs of elementary school children. Public Health Reports, 53(32), 1259-1274.	Greene, J. C., & Vermillion, J. R. (1964). The simplified oral hygiene index. Journal of the American Dental Association, 68(1), 7-13.
Tên gọi khác	DMF index, DMF score, DMFT score	OHI-S, simplified oral hygiene index, debris index, calculus index
Liên quan	4	3
Tóm tắt	The DMFT (Decayed, Missing due to caries, Filled) Index is a standardized epidemiological measure of dental caries experience in permanent dentition. Developed by Klein, Palmer, and Knutson in 1938, it quantifies the number of permanent teeth that are decayed, missing due to caries, or filled due to caries. The DMFT Index remains the most widely used caries index globally, enabling comparison of oral health across populations and tracking disease burden over time.	The Oral Hygiene Index-Simplified (OHI-S) is a rapid, non-invasive assessment tool that evaluates the amount of plaque (debris) and calculus on tooth surfaces. Developed by Greene and Vermillion in 1964, it comprises two subscales: the Debris Index-Simplified (DI-S) measuring soft deposits and the Calculus Index-Simplified (CI-S) measuring hard deposits. The OHI-S is widely used in dental research, public health surveys, and clinical practice to assess oral hygiene status and evaluate the effectiveness of preventive interventions.