root-cavity 中文意思是什麼
root-cavity
解釋
齒根腔-
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。 -
Objective probe into method and clinical significance of casting cavity - retention form post - core crown in restoring residual crown and root of the short molar
摘要目的：探討短磨牙殘根殘冠洞固位形鑄樁核冠修復的方法和臨床意義。 -
Conclusion casting post - core crown with cavity retention form is a convenient technique which can restore the residual crown and root of the short molars effectively and optimize the retention form as well
結論：洞固位形鑄造樁核冠修復短磨牙殘根殘冠既方便，簡潔，又解決修復體固位困難問題。 -
Results showed that due to the sharp difference between diameters at the upper and lower parts of the canal, the high - speed air - flow at the lower - end opening can drain the fluid below the opening out while the lower - speed air - flow al the upper opening is not likely to make the saliva and see page in the oral cavity reenter the root cavity
結果發現：由於根管兩端管逕相差懸殊，根尖孔?生的高速氣流沖擊，吸引根尖液，可引流低於根尖孔的液體；另一方面，開髓孔低速氣流不易將口腔內唾液、滲出物重新帶入根尖腔。 -
The quantitative relation of both the p - wave particle displacement proportion to charge and the root mean square of amplitude proportion to the 3 / 2 root of cavity radius was obtained, then the elongated charge, and the vertical delay stacked source, and the concentrating energy source, and the detonating seismic hammer, and opposite collision source were developed
本文基於球腔震源的縱波位移方程、激發子波的振幅及頻率與藥量的關系等理論基礎，總結了縱波質點位移與藥量成正比、振幅譜均方根與空穴半徑的3 2次方成正比的定量關系。 -
When dentist richard hansen goes after a cavity or cleans a root canal, his patients barely hear a thing
當牙醫理查德?漢森檢查齲洞或清洗牙槽的時候，他的病人只會聽到一點聲音。
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