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periodontitis    
相关语句
  牙周病
    The sequence of the prevalence of periodontal disease in different tooth position was M_1>M_2>P_2>P_1>M_3>C=I_2>I_1.The minor periodontitis were the most common.
    不同牙位牙周病发生率顺序为:M1>M2>P2>P1>M3>C=I2>I1。
短句来源
  牙周病
    The sequence of the prevalence of periodontal disease in different tooth position was M_1>M_2>P_2>P_1>M_3>C=I_2>I_1.The minor periodontitis were the most common.
    不同牙位牙周病发生率顺序为:M1>M2>P2>P1>M3>C=I2>I1。
短句来源
  牙周病
    The sequence of the prevalence of periodontal disease in different tooth position was M_1>M_2>P_2>P_1>M_3>C=I_2>I_1.The minor periodontitis were the most common.
    不同牙位牙周病发生率顺序为:M1>M2>P2>P1>M3>C=I2>I1。
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  periodontitis
The different forms of periodontitis are all associated with a distinct bacterial flora.
      
However, a clear relationship is described between localized juvenile periodontitis (LJP) andActinobacillus actinomycetemcomitans.
      
Phagocytosis of Periodontopathogenic Bacteria by Crevicular Granulocytes Is Depressed in Progressive Periodontitis
      
Infections of the tissue surrounding the teeth (periodontitis) are usually caused by anaerobic gram-negative microorganisms.
      
Removal of these microorganisms can slow or arrest the progression of periodontitis.
      
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This paper described the incidences of the caries and periodontitis in a sample including 283 individuals of the Three\|Yan Cultures from Lamadong cemetery in Beipiao,Liaoning and discussed the relationship between the frequency of dental disease,on the one hand and sex and age on the other.The result is as follows:(1)the frequency of the caries had no marked sexual difference, and the frequency of the periodontitis had sexual difference.(2)the frequency of the caries had certain association with...

This paper described the incidences of the caries and periodontitis in a sample including 283 individuals of the Three\|Yan Cultures from Lamadong cemetery in Beipiao,Liaoning and discussed the relationship between the frequency of dental disease,on the one hand and sex and age on the other.The result is as follows:(1)the frequency of the caries had no marked sexual difference, and the frequency of the periodontitis had sexual difference.(2)the frequency of the caries had certain association with age,but periodontitis is considered to be strongly associated with age.(3)in addition to the association with the host susceptibility and the activeness of the bacteria the formation of a human bental disease had certain association with the roughness of food.To a great extent,the detritions of the teeth in Lamadong cemetery were serious.The degree of attrition of the teeth is usually corresponding to that occurred in modera human individual 5\_10 years older.The heavy worn of the teeth made the residual food and bacteria easies to be inlaid in the space between neighboring teeth.So that the dentition became more difficult to be self\|cleaned.As a result,the periodontitis and the caries occurred.In ad- dition,the inlet of food between teeth would necessarily cause the mesiodistal interproximal caries.Hence,to a large extent,the frequently ocurring spot of the caries of this population was interproximal,whereas that of modern people was occlusal surface.(4) the oral hygiene conditions were closely related to the formation of dental disease.During the process of the investigation,no example of cervical wedge-shaped defect was found.Hence,we inferred that the residents buried in this cernetery were not conscious enough of the oral health,and meanwhile they did not care their oral hygiene.This is one of the most important factors that led to the high frequency of the dental disease in Lamadong cemetery.In addition,the supernumerary tooth,the congenital anodontia,the fused teeth,the maloccluded tooth and the impacted tooth were also recorded and analyzed.

本文对辽宁北票喇嘛洞三燕文化墓地出土人骨的牙病作了详细的观察。初步探讨了龋病和牙周病的罹患率与性别和年龄的关系 ,结果显示 :(1)龋病的罹患率男女间差异不显著 ,而牙周病的罹患率性别差异显著。 (2 )龋病的罹患率与年龄变化具有一定关系 ,而牙周病的罹患率则与年龄变化关系密切。此外 ,对多生牙、先天缺额牙、融合牙、错位牙、第三臼齿的阻生情况也分别作了记录与分析。

AIM:To investigate the morbidity and the trends of periodontitis by studying the prevalence of periodontitis from the teeth in banpo museum.METHODS:Eight hundred and Eighty three teeth of 76 individuals in Banpo museum were analysed by the SPSS 12.0.RESULTS:There were 500 teeth(57.08) in 64 objects having the periodontal disease.The prevalence rate of periodontal disease was 86.49%.The proportion of patients and teeth having periodontal disease ascended with the age in every group.The proportion...

AIM:To investigate the morbidity and the trends of periodontitis by studying the prevalence of periodontitis from the teeth in banpo museum.METHODS:Eight hundred and Eighty three teeth of 76 individuals in Banpo museum were analysed by the SPSS 12.0.RESULTS:There were 500 teeth(57.08) in 64 objects having the periodontal disease.The prevalence rate of periodontal disease was 86.49%.The proportion of patients and teeth having periodontal disease ascended with the age in every group.The proportion of the first molar with the periodontal disease was the highest((47.60) per cent) and that of the incisor and the third molar was low.There was no significant difference between sex((P>0.05)).CONCLUSION:From this study,a picture of the human′s periodontal disease six thousand years ago could be drawn,which will help us to understand the human′s working and living conditions at that time.

目的:调查距今六千年前新石器时期古人牙齿的牙槽骨水平状况,以探求牙周病的罹患及发展趋势。方法:观察记录并统计了西安半坡博物馆馆藏76例古人牙槽骨水平情况,用SPSS 12.0软件对全部的884个牙齿进行了统计学分析。结果:①有64个个体的500个牙齿患有牙周病,占观察牙齿总数的57.08%,该人群牙周病的平均患病率为86.49%。②36~55岁年龄组牙周病患病率(96.55%)>24~35岁年龄组(86.67%)>23岁以下年龄组(61.54%)。③牙周病的罹患累及各个牙位,第一磨牙的牙周病患病率最高,切牙及第三磨牙的患病率低,其大小顺序为:M1>M2>P1>P2>C>I2>I1>M3。④性别在牙周病患病率方面无显著性差异(P>0.05)。结论:本研究旨在了解六千年前古人牙槽骨水平的一般状况,有助于人们推断牙周疾病在人类进化过程中的变化规律,并为认识当时人类社会生产与生活情况提供间接的证明。

Objective:Study the periodontal disease of the people 2,000 years ago and investigate the rules and trends of periodontal disease.Method:2,452 teeth of 104 skulls in terra-cotta site near the mausoleum of Qinshihuang were observed.Analyze and compare the prevalence of periodontal disease,the position of periodontal disease according to the different age groups.Result:The prevalence rate of periodontal disease was 49.04 per cent.The prevalence of periodontal disease in the group that was above 30 years old of...

Objective:Study the periodontal disease of the people 2,000 years ago and investigate the rules and trends of periodontal disease.Method:2,452 teeth of 104 skulls in terra-cotta site near the mausoleum of Qinshihuang were observed.Analyze and compare the prevalence of periodontal disease,the position of periodontal disease according to the different age groups.Result:The prevalence rate of periodontal disease was 49.04 per cent.The prevalence of periodontal disease in the group that was above 30 years old of age was highest(76.19 per cent).The proportion of patients and teeth having periodontal disease was ascending with the age in every group.The sequence of the prevalence of periodontal disease in different tooth position was M_1>M_2>P_2>P_1>M_3>C=I_2>I_1.The minor periodontitis were the most common.Conclusion:The periodontal disease was common 2,000 years ago.The prevalence of periodontitis was more than modern people's.

目的:调查距今2000年前人类牙周病状况,探寻人类牙周病的流行规律。方法:观察并统计秦始皇帝陵区山任陶窑遗址出土的104具人骨架全部2452个牙齿的牙周病患病情况。按个体的年龄分组,分别对牙周病患病率、罹患的牙位进行统计分析与比较。结果:该人群牙周病的平均患病率49.04%,其中30岁以上年龄组的牙周病患病率最高(76.19%)。在不同年龄组中,牙周病的患病率和患牙数占观察牙总数的比例随个体年龄的增长而增高。不同牙位牙周病发生率顺序为:M1>M2>P2>P1>M3>C=I2>I1。结论:牙周病在2000年前的人群中已广泛存在,其发病率较现代人高。

 
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