Hellenika stomatologika chronika. Hellenic stomatological annals最新文献_第6页

["Dose-risk" relationships at low doses of radiation]. [低剂量辐射下的“剂量-风险”关系]。

Hellenika stomatologika chronika. Hellenic stomatological annals Pub Date : 1988-10-01

E P Stefanou

引用次数: 0

[In vitro effect of an air-powder abrasive system on the susceptibility of dental tissues to artificial caries]. 空气粉末磨料系统对牙组织对人工龋齿易感性的体外影响

Hellenika stomatologika chronika. Hellenic stomatological annals Pub Date : 1988-10-01

N Kotsanos, G Makris

{"title":"[In vitro effect of an air-powder abrasive system on the susceptibility of dental tissues to artificial caries].","authors":"N Kotsanos, G Makris","doi":"","DOIUrl":"","url":null,"abstract":"An air-powder jet abrasive system has recently been introduced for stain removal from teeth. The purpose of this study was to investigate whether its abrasive effect on enamel and on the root renders these surfaces more caries prone. The AIR-FLOW (EMS SA) abrasive was directed for 30 seconds on predetermined (test) sites of the crown and the root of each of 10 teeth, under controlled conditions. These and adjacent (control) sites in the form of windows, were then exposed to an acid gel for caries-like lesion formation. The central sections of each window were examined under the polarizing microscope. The enamel treated with the abrasive appeared somewhat roughened while the root showed crater-like abrasion defects averaging 303 mm (+/- 140) in depth. The mean depth of enamel test lesions was 253 mm (+/- 77) and that of control lesions 98 mm (+/- 77), the difference being statistically significant (p less than 0.001). The corresponding values for the root lesions were 695 mm (+/- 103) and 695 mm (+/- 120) respectively. Consequently, enamel surface modification by AIR-FLOW decreased the resistance of enamel to caries-like lesions in vitro and it is postulated that this may also happen at \"susceptible sites\" in vivo. Loss of cementum and superficial dentine abraded by AIR-FLOW was significant but did not lead to increased root susceptibility to caries-like lesions in vitro.","PeriodicalId":75901,"journal":{"name":"Hellenika stomatologika chronika. Hellenic stomatological annals","volume":"32 4","pages":"243-8"},"PeriodicalIF":0.0,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14283311","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

[Correlation between pregnancy and dental caries]. [怀孕与龋齿的关系]。

Hellenika stomatologika chronika. Hellenic stomatological annals Pub Date : 1988-10-01

G Vadiakas, C Lianos

引用次数: 0

[Oral habits. Etiology and treatment]. (口语习惯。病因和治疗]。

Hellenika stomatologika chronika. Hellenic stomatological annals Pub Date : 1988-10-01

K Romanou-Kouvelas, N Kouvelas

{"title":"[Oral habits. Etiology and treatment].","authors":"K Romanou-Kouvelas, N Kouvelas","doi":"","DOIUrl":"","url":null,"abstract":"Oral habits have been described by psychologists and psychyatrists as psychodynamic phenomena. Dentists are concerned with oral habits because of the detrimental consequences they have in the oral facial system. The dentist who is in a position to confront a child with an oral habit in order to treat his dentinofacial problems is required to be aware of the psychological background of his patient as well as of the conditions under which the children do the habit in order to overcome emotional difficulties. The dentist should also search into the child's family to find out what the causes of the child's oral habit maybe. For the treatment of an oral habit the dentist should ensure both the child's and the family's cooperation and he should be aware of the advantages and disadvantages of every available method for treatment. Methods of treatment are: Use of orthodontic appliances: This method has the disadvantage that disturbs the child's psychological need for the habit, it can be interpreted as a punishment, it is visible and it causes speaking difficulties. It should be applied only in cooperation with the child. Behavioristic technique: This method aims to reinforce the child's positive behavior according to the Skinnerian principle: stimulus-response-reward. It has fast results but it is a conditioned treatment. Psychoanalytic method: It could solve the problem of the child's primary need for the oral habit in a radical manner. However it is practically impossible to be applied in Dentistry. Behavior modification according to ego psychology. With this method we attempt to analyse and understand the psychological cause of an oral habit.(ABSTRACT TRUNCATED AT 250 WORDS)","PeriodicalId":75901,"journal":{"name":"Hellenika stomatologika chronika. Hellenic stomatological annals","volume":"32 4","pages":"285-91"},"PeriodicalIF":0.0,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14284431","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

[A simplified technique for the clinical measurement of the Frankfort-mandibular plane angle]. 一种临床测量法兰克福-下颌平面角的简化方法。