齒根髓 的英文怎麼說
中文拼音 [chǐgēnsuǐ]
齒根髓
英文
pulparadicularis-
Methods : we have divided the 636 molars ( without dental caries or pathological changes of root ) collected in school of forensic medicine and stomatological hospital in shanxi medicine university into four groups : maxl, max2, manl, man2, and selected 5 indexes closely related to changes of dental age ( dental attrition, contact area, the index of dentine marrow cavity, the thickness of cementum of root, the diaphaneity of dentine of root ), and proposed the grading standard and scoring standard date processing and statistical analysis after measuring the teeth of the four groups
方法:從山西醫科大學法醫學院及口腔醫院收集的636磨牙(無齲壞、無根尖病變)分為max1 、 max2 、 man1 、 man2四組,根據牙齒的增齡變化特點,篩選了5個與牙齡變化密切相關的指標(牙齒的磨耗、接觸區面積、牙本質髓室指數、根尖牙骨質的厚度、根尖牙本質透明) ,提出了指標的分級標準和評分標準,對各組的牙齒測量后進行數據處理和統計分析。Results : all the five indexes ( dental attrition, contact area, the index of dentine marrow cavity, the thickness of cementum of root, the diaphaneity of dentine of root ) revealed a highly interrelated relationship with age. regression height was significant when the multiple regression equation, which was formulated with these five indexes and age and used to judge the age was statistically analyzed
結果:牙齒的磨耗、接觸區面積、牙本質髓室指數、根尖牙骨質的厚度、根尖牙本質透明均反映出與年齡高度相關關系,用這5個指標與年齡所建立的判別年齡的多元回歸方程經統計學分析,回歸高度顯著。Thirty weeks later two - millimeter - wide molar crowns emerged, complete with pulp chambers, root tips and bonelike layers of dentin and, in a first, enamel
30周后,冒出了兩公釐寬的臼齒牙冠,具有牙髓腔、牙根的根尖、一層如骨骼般的象牙質,以及最基本的琺瑯質。
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