Zhonghua ya yi xue hui za zhi最新文献_第2页

[An epidemiological study of oral cancer in Taiwan]. 台湾口腔癌的流行病学研究。

Zhonghua ya yi xue hui za zhi Pub Date : 1990-09-01

C H Tsay, C H Chiu

引用次数: 0

Bilateral mesiodentes of identical twins--a case report. 同卵双胞胎双侧中齿症1例报告。

Zhonghua ya yi xue hui za zhi Pub Date : 1990-09-01

W K Choi, R C Chang, S T Chuang

引用次数: 0

Assessment of periodontal disease in an adult population survey in Taipei city using CPITN and GPM/T indices. 用CPITN与GPM/T评价台北市成人牙周病调查结果。

Zhonghua ya yi xue hui za zhi Pub Date : 1990-06-01

T K Peng, J H Yao, K S Shih, Y J Dong, C K Chen, L Pai

{"title":"Assessment of periodontal disease in an adult population survey in Taipei city using CPITN and GPM/T indices.","authors":"T K Peng, J H Yao, K S Shih, Y J Dong, C K Chen, L Pai","doi":"","DOIUrl":"","url":null,"abstract":"The community periodontal index of treatment needs (CPITN) has been recommended for epidemiological surveys of periodontal status and treatment needs. The prevalence of gingivitis, periodontitis and missing teeth in a study population has been determined using the CPITN and GPM/T (gingivitis: periodontitis: missing teeth) indices. In this study, a survey of periodontal disease was performed among the adult population of Taipei City using the CPITN index. A total of 673 dentated persons (male 339, 50.4%; female 334, 49.6%) were examined and surveyed. Data were then divided into five age groups, 15-19, 20-29, 30-44, 45-64 and 64+. The prevalence of periodontal disease was analyzed using the percentage or sextant from all teeth. Treatment needs were determined by the worst periodontal score per sextant. It was found that about 91% of subjects suffered from various degrees of periodontal disease in at least one tooth. Gingivitis and periodontitis were 86.9% and 33%, respectively. Among them 48.9% had missing teeth. The prevalence of periodontitis and missing teeth increased with age. Most of them involved oral hygiene instruction and scaling. About 11.0% of the subjects needed periodontal surgery. Higher proportions of attachment loss with gingival recession caused by destructive periodontal disease were found in older persons who did not require periodontal surgery. It was concluded that endemic gingivitis and calculus, a moderate prevalence of shallow pockets and a low prevalence of deep pockets were observed among adults in this group in Taipei City and that the CPITN is a practical epidemiological and public health method for screening the periodontal status and treatment needs of a population.","PeriodicalId":77649,"journal":{"name":"Zhonghua ya yi xue hui za zhi","volume":"9 2","pages":"67-74"},"PeriodicalIF":0.0,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13259259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Effects of subgingival antimicrobial irrigation in chronic periodontitis--clinical observation]. 龈下抗菌冲洗治疗慢性牙周炎的临床观察

Zhonghua ya yi xue hui za zhi Pub Date : 1990-06-01

J M Lin, F Y Peng, S C Lin

{"title":"[Effects of subgingival antimicrobial irrigation in chronic periodontitis--clinical observation].","authors":"J M Lin, F Y Peng, S C Lin","doi":"","DOIUrl":"","url":null,"abstract":"One week prior to the establishment of baseline records, 144 sites with a probing pocket depth of 5-7 mm in 13 periodontitis patients were treated with plaque control and root planning. Sites with periodontitis involvement in each patient were divided, by split mouth design, into 4 quadrants. Each quadrant was irrigated subgingivally with either 0.05% metronidazole or 0.05% ornidazole, or 0.2% chorhexidine, or 0.9% normal saline (control) once every 2-3 days for 4 weeks. The plaque index, sulcus bleeding index, probable pocket depth and gingival index were assessed at the baseline and at 4 weeks, 8 weeks and 12 weeks following initial preparation. All 4 clinical parameters in the ornidazole treated group showed significant improvement as compared with baseline values, but the improvements were not maintained to the end of the study. Except for improvement in the sulcus bleeding index and the gingival index in the ornidazole group, which was superior to that of the metronidazole group at the 4th week, there were no significant differences in other parameters between the ornidazole, metronidazole and chlorhexidine groups at the irrigation sites. From these data we can tentatively conclude that subgingival irrigation with ornidazole in deep pockets is more effective than metronidazole or chlorhexidine in nonsurgical periodontal therapy.","PeriodicalId":77649,"journal":{"name":"Zhonghua ya yi xue hui za zhi","volume":"9 2","pages":"75-82"},"PeriodicalIF":0.0,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13259261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[An in vitro study of the antimicrobial effectiveness of ultrasonic instrumentation]. 超声仪器抗菌效果的体外研究

Zhonghua ya yi xue hui za zhi Pub Date : 1990-06-01

C Chan, S Y Chao

{"title":"[An in vitro study of the antimicrobial effectiveness of ultrasonic instrumentation].","authors":"C Chan, S Y Chao","doi":"","DOIUrl":"","url":null,"abstract":"Successful endodontic therapy is based upon the classic triad of diagnosis, adequate canal preparation, and obturation. Preparation for a root canal has two major components--debridement and shaping. Debridement, or cleaning, consists of removal of necrotic intracanal dentin and organic debris, and reduction of the bacteria inside the root canal. According to the research, the endontic ultrasonic system plays a valuable and significant and synergistic role in aiding the bacteriocidal mechanisms based on the cavitation and acoustic streaming effect. The purpose of this study was to compare the antimicrobial effectiveness of two newly developed endodontic ultrasonic devices and the conventional hand-filing techniques. Eighty single root canal teeth with deep caries or apical lesions were selected and evenly divided into 4 groups. The root canals were prepared using conventional hand filing or one of two newly developed ultrasonic filing systems, ENAC and CAVI-ENDO. The contents of the root canals before and after debridement were cultured in a thioglycolate culture tube. The results showed that in the ultrasonically prepared specimens irrigated with a normal saline solution, the microbial culture numbers were significantly reduced and obviously different from those prepared by the hand instrumentation technique. The above mentioned differences were statistically significant at the level of p less than 0.05 by the McNemar test and Chi-square test.","PeriodicalId":77649,"journal":{"name":"Zhonghua ya yi xue hui za zhi","volume":"9 2","pages":"61-6"},"PeriodicalIF":0.0,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13259390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[The efficacy of sonic and ultrasonic appliances on root canal debridement]. [超声及超声器械在根管清创中的应用]。

Zhonghua ya yi xue hui za zhi Pub Date : 1990-06-01

C P Chen, C L Yeh, Y K Yang, C C Ma, S Nieh

引用次数: 0

[Isolation and biotyping of Streptococcus mutans among preschool children in Kaohsiung city]. [高雄市学龄前儿童变形链球菌的分离与生物分型]。

Zhonghua ya yi xue hui za zhi Pub Date : 1990-03-01

H S Chen, Y F Liou, S T Huang

引用次数: 0

Aneurysmal bone cyst of the mandible--a case report. 下颌骨动脉瘤样骨囊肿1例。

Zhonghua ya yi xue hui za zhi Pub Date : 1990-03-01

Y Q Chen, L M Lin, C C Lin, S Lai

引用次数: 0

Calcifying odontogenic cyst presenting as a lateral periodontal cyst--a case report. 牙源性钙化囊肿表现为外侧牙周囊肿1例。

Zhonghua ya yi xue hui za zhi Pub Date : 1990-03-01

Y L Huang, L M Lin, C C Lin, Y H Yan

引用次数: 0

A cross-sectional study on the skeletal development of the hand and wrist from preadolescence to early adulthood among Chinese in Taiwan. 台湾华人青少年前期至成年早期手腕部骨骼发育的横断面研究。

Zhonghua ya yi xue hui za zhi Pub Date : 1990-03-01

H F Chang, K M Wu, K C Chen

{"title":"A cross-sectional study on the skeletal development of the hand and wrist from preadolescence to early adulthood among Chinese in Taiwan.","authors":"H F Chang, K M Wu, K C Chen","doi":"","DOIUrl":"","url":null,"abstract":"In order to study the skeletal development of the hand-wrist among Chinese in Taiwan, a total of 1,679 hand-wrist radiographs were collected from the files in the Division of Orthodontics, School of Dentistry, National Taiwan University and the Orthodontic Clinic of the National Taiwan University Hospital. The ages of the subjects ranged from 6.3 years to 22.7 years. The nine commonly used ossification events, PP2 = ,MP3 = ,S, MP3cap, DP3u, MP3u, Riu, Rau and Rcu, were used in this study. It was found that the sequence of the nine skeletal maturation stages did not differ between males and females and was generally in agreement with similar studies among other ethnic groups. A statistically significant difference did exist between the males and females in the mean ages of onset of the skeletal maturation stages. All of the skeletal stages were more advanced in the females than in the males. The mean ages of the nine skeletal maturation stages obtained in this study could be used as a reference for daily pedodontic and orthodontic practice as well as for related studies. Although there was no intention of making a statistical comparison of the data for the Chinese with those of other ethnic groups, some diagrammatic illustrations for comparison were made.","PeriodicalId":77649,"journal":{"name":"Zhonghua ya yi xue hui za zhi","volume":"9 1","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"1990-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13285346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0