ISO 5365:2024 pdf download Dentistry Designation system for tooth developmental stages 牙齿发育阶段的指定系统

ISO 5365:2024 pdf download,Dentistry Designation system for tooth developmental stages.
牙齿发育阶段的指定系统
This document ISO 5365:2024 specifies a method for designating the coding and nomenclature for tooth developmental stages using a single letter and number to facilitate data entry and support interoperability.
该文件规定了使用单个字母和数字指定牙齿发育阶段的编码和命名方法，以方便数据输入和支持互操作性。
The first letter represents the part of the tooth (crown, root and apex), and the number represents the stage of development of the tooth part.
Many age estimation methods using various body systems exist;however,the human dentition is considered one of the most accurate biological indicators of chronological age.Because tooth development is predominantly regulated by genetics,environmental factors have only a minimal effect on the development process.
Dental age assessment is typically based on 2D radiographic data correlating the degree of tooth development to the chronological age of a population.However,there are different scoring systems,withdifferent numbers of stages and nomenclature of stages.Furthermore,different methods use the samescoring system and have different time intervals.Therefore,the number of dental developmental stagescan vary greatly depending on the method used.In addition,some methods only offer diagrams,withoutdescriptors,of tooth stages,which can lead to ambiguity in stage assignment and can affect the accuracy ofthe result of a technique.
Therefore,creating a standardized terminology with diagrams for tooth developmental stages is vital to improve the consistency of these score attributions,add objectivity to the assessment and improve the accuracy of the results.
For the purposes of this document,the tooth designation is assigned as outlined in ISO 3950.