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1.
C F Hildebolt S Molnar M Elvin-Lewis J K McKee 《American journal of physical anthropology》1988,75(1):1-14
In previous epidemiological studies, it has been suggested that geochemical factors besides fluoride may affect the prevalences of dental diseases. Our objective in this study was to determine whether the prevalences of periodontal diseases, coronal caries, and root caries for prehistoric inhabitants vary between geochemical regions of the state of Missouri. Burial sites were located on unique maps that depict geochemical variation among regions of the state. Data on dental caries and alveolar bone loss were gathered from 179 of the best preserved skeletal remains of the Late Woodland (A.D. 400-900) and Mississippian (A.D. 900-1700) periods. Mean caries scores and proportions of individuals with caries were calculated for these geochemical regions. Average alveolar bone loss was regressed on age for the individuals of these regions. Significant differences in caries and bone loss were found between several regions. These differences cannot be adequately explained by fluoride concentrations or by diet. It is suggested that geochemical factors, in addition to fluoride, may have affected the prevalences of dental diseases. 相似文献
2.
Raymond L. Costa 《American journal of physical anthropology》1980,52(4):501-514
The incidence of caries and abscesses in 246 archeologically derived skeletal specimens from the Ipiutak and Tigara levels at Point Hope, Alaska, and 79 specimens excavated from Jones Point, Kodiak Island, Alaska were investigated. All three collections span long periods of time. Only pre-white contact specimens were used. Each specimens was sexed and aged in five year groupings, using standard techniques. Caries and abscesses were recorded by type and degree of severity and correlated with age, sex, and site of origin. All samples displayed very low caries rates and few abscesses per tooth and per individual (both observed frequencies, and frequencies corrected for postmortem loss of teeth). DMF scores were tabulated using both observed and corrected frequencies. Very heavy occlusal wear in all three samples could account for the majority of abscesses and pulp exposures, while the low caries rates are attributable to traditional diets totally devoid of refined sugars, starches, and food additives. 相似文献
3.
目的 探究妊娠期妇女龋病及牙周病发生情况和不同产次对妊娠期妇女龋病及牙周病发生的差异。方法 以228名妊娠期妇女(其中初产妇140名,经产妇88名)和85名同龄未妊娠妇女(对照)为研究对象,检查其龋病及牙周病发生状况,并记录菌斑指数(PLI)、探诊深度(PD)、临床附着丧失(CAL)、牙石指数(CI)和龈沟出血指数(SBI),进行组间统计分析。结果 (1)初产组(47.86%)、经产组(67.05%)的患龋率均高于对照组(29.41%)(P0.05)。结论 妊娠可能导致妇女患龋率、PLI、CI、PD、CAL和SBI的增加,且产次增加可能导致妇女患龋率、PD和SBI的增加。 相似文献
4.
目的:评估窝沟封闭对预防第一磨牙窝沟龋的2年临床疗效。方法:选择贵阳市花溪区200名7-9岁经家长同意并签署窝沟封闭知情同意书的学生为实验组,进行第一磨牙窝沟封闭;因家长不同意而未进行窝沟封闭的200名同龄学生为对照组,两年内复查两组的龋病发病率和封闭剂的保留情况。结果:实验组窝沟封闭后第一年、第二年第一磨牙龋病的发生率分别为1.50%和1.01%,而对照组分别为4.00%和6.57%,第二年实验组的第一磨牙龋病发病率显著低于对照组,差异有统计学意义(P0.05)。实验组第一年、第二年的封闭剂完全保留率分别是85.5%和80.4%。结论:窝沟封闭作为一项健康干预措施,能有效降低学生的龋病发病率。 相似文献
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6.
可摘局部义齿基牙易发龋坏部位致龋菌的检出比较 总被引:6,自引:1,他引:5
通过对戴入可摘局部义齿后基牙易发龋坏部位的早期细菌组成的测定,探讨可摘局部义齿与基牙龋坏之间的潜在关系。观察12个6活动桥的24颗基牙,其中5、7各12颗。病人平均年龄255岁。采取基牙靠缺隙侧邻面1/3区域的菌斑。采用细菌培养技术,持续观察了3个月,测定了菌斑细菌的组成。结果发现,变形链球菌的检出率在实验中呈逐渐上升趋势,且在牙位7上的检出率比在牙位5上的检出率高。结论戴用可摘局部义齿造成了口腔微生态环境的改变,促进了某些致龋细菌的生长,成为基牙发生龋坏的潜在因素 相似文献
7.
Jeffrey H. Schwartz Jaymie Brauer Penny Gordon-larsen 《American journal of physical anthropology》1995,97(1):77-82
In a sample of 48 adult Tigarans (1300–1700 A.D.) from Point Hope, Alaska, 33 exhibited various degrees of periodontal disease, which, in 25, resulted in tooth loss (Schwartz, unpublished data). Although extreme examples of tooth wear were prevalent in the sample, carious infection was noted in only one individual, in whom the lower central incisors (I1s) had been affected. In the left I1 infection had spread through the root's apex into the alveolar bone, causing an abscess. The buccal (labial) side of the root of this tooth, just below the crown, bears a shallow, relatively flat-bottomed depression, with a small perforation into, as well as a second hole that fully penetrates, the root canal. Both of these features appear to have been produced by an implement, and, as they are associated with a diseased tooth, and ritualistic tooth shaping or drilling of any sort was, and is, not practiced among Arctic groups, their purpose was probably therapeutic. As such, this specimen appears to represent a case of precontact New World Arctic dentistry. © 1995 Wiley-Liss, Inc. 相似文献
8.
L Kilgore 《American journal of physical anthropology》1989,80(2):219-227
The dental remains of ten adult chimpanzees from Gombe National Park, Tanzania, were examined for enamel attrition, caries, abscesses, periodontal disease, and tooth loss. Age was the underlying factor in the development of dental pathology, in that enamel wear was present to some extent in all ten but was uniformly severe only in the three for whom estimated age at death was 39-43 years. In turn, enamel wear appears to have been the direct cause of abscess development, periodontal disease, and tooth loss. Periodontal disease was commonly expressed as alveolar resorption, particularly around the premolars and molars. This involvement was variable in all except the two youngest. Some interesting wear patterns were evident in the form of deep grooves in the upper incisors and dramatic notching of the lower canines. These patterns, and enamel attrition in general, were attributed to normal mastication and to various stripping activities. Only one carious lesion was observed, in a male with an estimated age of 26 years. An accurate assessment of the actual prevalence of caries was obscured by enamel wear and tooth loss in the older individuals. 相似文献
9.
目的:调查南京市栖霞区3~5岁儿童乳牙患龋现状,并分析患龋的影响因素。方法:于2020年1月到2020年12月,采用整群随机抽样法,抽取南京市栖霞区8所幼儿园中符合3~5周岁年龄段的儿童。观察入选对象的乳牙患龋现状,对入选对象的照顾者进行问卷调查,采用单因素及多因素Logistic回归分析南京市栖霞区3~5岁儿童乳牙患龋的影响因素。结果:每所幼儿园抽取3、4、5岁儿童各42人,合计1008人。实际完成调查1000人,响应率99.21%,1000人中有573人乳牙患龋,患龋率为57.30%。不同性别、年龄的儿童其患龋率对比差异有统计学意义(P<0.05)。单因素分析结果显示,南京市栖霞区3~5岁儿童乳牙患龋与糖摄入频率、照顾者学历、家庭人均月收入、使用含氟牙膏情况、睡前进食、大人帮助下刷牙、每天刷牙次数、开始刷牙年龄、近半年有无口腔检查有关(P<0.05)。多因素Logistic回归分析结果显示,年龄>4岁、糖摄入频率≥2次/d、睡前进食、家庭人均月收入<2000元、照顾者学历初中及以下是南京市栖霞区3~5岁儿童乳牙患龋的危险因素,而开始刷牙年龄≤2岁、每天刷牙次数≥2次、使用含氟牙膏是南京市栖霞区3~5岁儿童乳牙患龋的保护因素(P<0.05)。结论:南京市栖霞区3~5岁儿童乳牙患龋率较高,且受到年龄、糖摄入频率、睡前进食等多种因素影响,可考虑针对相关因素加强口腔健康教育和龋病预防控制工作。 相似文献
10.
Extraction is one of the commonest procedures in dentistry. Therefore, it is of interest to evaluate the post extraction complications in patients undergoing extractions of permanent teeth. A total of 70 adult patients who had undergone dental extractions and presented with post -operative complications were included in the study and evaluated. Data collected was statistically analyzed using SPSS software and results obtained. Most of the patients with post extraction complications were in the age group of 31-40 years (21.6%), followed by 21-30 (20.2%) and 61-70 years (20.2%). Dry socket (39.19%) was the common post extraction complication in our study especially in the age group of 31-40 years. There was a statistically significant association between age of the patients and the post extraction complications (p<0.001). In our study, post extraction complications were commonly observed in age group of 31-40 years with a predilection for males. Dry socket was the most common post extraction complication. Age of the patient has a significant effect on post extraction complications. However, gender, smoking habits and systemic diseases have no influence on post extraction complications. 相似文献