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[Introduction to oral biology]. [口腔生物学导论]。
Odontostomatologike proodos Pub Date : 1989-10-01
T E Mavrakos
{"title":"[Introduction to oral biology].","authors":"T E Mavrakos","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The purpose of this review is to give a general description of the discipline of Oral Biology. The different subjects are classified with a short introduction to each one, followed by an analysis of their role in clinical dentistry. Reference is made to various areas of research with emphasis on bone biology, mechanisms of inflammation, oral immunology and oral microbiology. The references stated are representative, aiming to satisfy the reader with a general interest rather than the very specialized one.</p>","PeriodicalId":76279,"journal":{"name":"Odontostomatologike proodos","volume":"43 5","pages":"391-7"},"PeriodicalIF":0.0,"publicationDate":"1989-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13664111","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
[Degree of double conversion in nine pit and fissure sealants]. [9种坑缝密封胶的双重转换程度]。
Odontostomatologike proodos Pub Date : 1989-10-01
L Papagiannoulis, G Eliades
{"title":"[Degree of double conversion in nine pit and fissure sealants].","authors":"L Papagiannoulis,&nbsp;G Eliades","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The purpose of the study was to evaluate quantitatively the degree of double bond conversion in nine commercially available pit and fissure sealants. The materials selected for the study were a) Nuva-Seal and Nuva Coat-UV cured b) Delton, Helioseal, Pentra Seal, Prisma Shield, Visioseal-Visible light cured and c) Delton, Concise White-Chemically cured. Infrared spectroscopy of monomer and polymer films, was used for the quantitative analysis at 37 degrees C. Monomer spectra were obtained from liquid films enclosed between two KBr plates while polymer spectra 24h after storage from 0.2 mm thick cylindrical specimens of 10mm diameter exposed to the activating lights for 1 min or mixed according to manufacturers. The results indicate that UV-cured materials provide the highest degree of double bond conversion followed by visible light cured systems. The clinical failure of UV-cured systems, despite their higher conversion rates is probably attributed to stabilization and shelf life problems of the catalyst besides the harmful side effects of UV-radiation which limited the utilization of these systems.</p>","PeriodicalId":76279,"journal":{"name":"Odontostomatologike proodos","volume":"43 5","pages":"435-42"},"PeriodicalIF":0.0,"publicationDate":"1989-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13664116","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
[Three cases of Rubinstein-Taybi syndrome]. 鲁宾斯坦-泰比综合征3例。
Odontostomatologike proodos Pub Date : 1989-10-01
M J Papagrigorakis, C P Daliouris, N D Spyropoulos
{"title":"[Three cases of Rubinstein-Taybi syndrome].","authors":"M J Papagrigorakis,&nbsp;C P Daliouris,&nbsp;N D Spyropoulos","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Manifestations from the craniofacial complex in patients presenting with the Rubinstein-Taybi syndrome, are of a special interest to the dentist as they involve structures of the oral cavity. On the occasion of three cases that exhibit some of the characteristic signs of this syndrome, the authors provide an extensive review of the related literature. Also, the specific morphology of the face, fingers, and oral structures of these patients is described, as well as, the findings from their cephalometric radiographs. These findings are indicative of a retrognathic face with severe dental crowding requiring extensive orthodontic treatment.</p>","PeriodicalId":76279,"journal":{"name":"Odontostomatologike proodos","volume":"43 5","pages":"451-8"},"PeriodicalIF":0.0,"publicationDate":"1989-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13664091","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
[Antimicrobial action of dental materials used in operative dentistry: a review]. [牙科手术中口腔材料的抗菌作用:综述]。
Odontostomatologike proodos Pub Date : 1989-10-01
P G Sourai
{"title":"[Antimicrobial action of dental materials used in operative dentistry: a review].","authors":"P G Sourai","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This is a review of the literature about the antimicrobial action of dental materials used in operative dentistry. There are referred to the usefulness of the antimicrobial action of dental materials, and to the methods used by the investigators for the study of the antimicrobial properties. The methods used were: the examination of the in vitro antimicrobial action of the materials against several microbes, The in vivo antimicrobial action of the materials against the microbes that are enclosed underneath them in dental cavities, where some carious material was left on the floor of the cavities. Some other methods, as so as the adsorption of microbes on the experimental materials, in vivo and in vitro. There are presented the results of a lot of investigators for the antimicrobial action of dental amalgams, composite resins, silicate cements, glass-ionomer cements, zinc-phosphate, zinc oxide-eugenol and polycarboxylate cements, calcium hydroxide bases and also for varnishes and liners, since the time of Miller (1890) up to now. From these researches we can come to the following conclusions: 1) All dental materials have some antibacterial activities against several microbes when they are freshly mixed. Their action reduces with the past of time. 2) The responsible antibacterial factors are unknown. May be more than one factors. 3) In clinical practice it is not known what material is better, because the conditions are different from tooth to tooth and from mouth to mouth. 4) More researchers are necessary for this purpose because the antibacterial properties must be regarded as a part of the other biological properties of dental materials and the recurrent caries may be inhibited because of the antibacterial properties of filling and base materials.</p>","PeriodicalId":76279,"journal":{"name":"Odontostomatologike proodos","volume":"43 5","pages":"399-408"},"PeriodicalIF":0.0,"publicationDate":"1989-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13664112","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
[Arterial pressure variation following an intravenous and submucous injection of local anaesthetic solutions with vasoconstrictor]. [静脉和粘膜下注射局部麻醉和血管收缩剂后的动脉压变化]。
Odontostomatologike proodos Pub Date : 1989-08-01
A Tsirlis, D Iakovidis
{"title":"[Arterial pressure variation following an intravenous and submucous injection of local anaesthetic solutions with vasoconstrictor].","authors":"A Tsirlis,&nbsp;D Iakovidis","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This paper deals with the control, registration and statistical evaluation of blood pressure variations (systolic, diastolic and average) after an i.v. and submucous injection of fixed quantity local anaesthetic solutions (0.05 ml) in white hamsters. The solutions used were: lidocaine 2% with adrenaline 1/80,000, lidocaine 3% with noradrenaline 1/25,000. The intravenous injection of all three local anaesthetic solutions has caused an increase of the arterial pressure parameters which was statistically significant (P less than 0.01). The submucous injection of lidocaine 2% solution with adrenaline 1/80,000 and lidocaine 2% with noradrenaline 1/80,000 has not caused mentionworthy arterial pressure variations. On the contrary, the submucous injection of lidocaine 3% solution with noradrenaline 1/25,000 has led to an increase of the arterial pressure which is statistically important (P less than 0.05). The research results have led to the following conclusions: 1) Intravascular injection of local anaesthetics with adrenaline or noradrenaline has immediate negative consequences on the circulatory system, a fact which renders necessary a test respiration prior to any stem anaesthesia. 2) The submucous injection of lidocaine solutions with adrenaline or noradrenaline 1/80,000 may be described as harmless with respect to cardiovascular toxicity, and 3) The 3% lidocaine solution with noradrenaline 1/25,000 has proved to be capable of producing significant increase of the arterial pressure following a submucous injection. Anaesthetic solutions with 1/25,000 noradrenaline concentration should not be used, while they must be considered as extremely hazardous for patients with cardiovascular problems.</p>","PeriodicalId":76279,"journal":{"name":"Odontostomatologike proodos","volume":"43 4","pages":"347-56"},"PeriodicalIF":0.0,"publicationDate":"1989-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13662037","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
[Incidence of oral manifestations in children with acute leukemia]. [急性白血病患儿口腔表现的发生率]。
Odontostomatologike proodos Pub Date : 1989-08-01
K Theodorpoulos-Papadimitriou, A N Donta, E B Kosmidi
{"title":"[Incidence of oral manifestations in children with acute leukemia].","authors":"K Theodorpoulos-Papadimitriou,&nbsp;A N Donta,&nbsp;E B Kosmidi","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Fifty children with oral manifestations of acute leukemia, ranging in age from 1 to 14 years, have been studied with reference to age, sex, location and clinical presentation of the oral lesions. Seventy six percent of the patients had the disease during the first decade of their life, 22% as acute myelocytic leukemia and 54% as acute lymphocytic leukemia. In the current study, acute leukemia exhibited a high predilection for males (70%) and mucosal pallor was the most common presenting oral symptoms (39.6%). Erythema, ulceration and swelling of the lip, tongue, palate and gingiva were also frequent symptoms. Extra oral involvement occurred in 60% of the cases as facial pallor and 11% as lymph node enlargement.</p>","PeriodicalId":76279,"journal":{"name":"Odontostomatologike proodos","volume":"43 4","pages":"357-63"},"PeriodicalIF":0.0,"publicationDate":"1989-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13664108","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
[Mucous retention cysts of the minor salivary glands. A specific type of mucocele]. 小唾液腺的粘液潴留囊肿。一种特殊类型的粘液囊肿]。
Odontostomatologike proodos Pub Date : 1989-08-01
E Kakarantza-Angelopoulou, A Triantaphyllou
{"title":"[Mucous retention cysts of the minor salivary glands. A specific type of mucocele].","authors":"E Kakarantza-Angelopoulou,&nbsp;A Triantaphyllou","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The mucous retention cyst of the minor salivary glands represent a specific type of oral mucocele which is lined by epithelium. It is caused probably from partial or complete obstruction of a duct. It affects older patients (over 40 years of age) most commonly women and it is located in different sites than the ordinary mucocele. In this paper we studied the histologic and histochemical features of four cases. The lining epithelium varied from cuboidal to columnar or flattened. Among the cells of the lining epithelium oncocytes were observed.</p>","PeriodicalId":76279,"journal":{"name":"Odontostomatologike proodos","volume":"43 4","pages":"373-9"},"PeriodicalIF":0.0,"publicationDate":"1989-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13664110","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
[Formation, composition, clinical implications and methods for removing the smeared layer from root canal walls]. [根管壁涂膜的形成、组成、临床意义及清除方法]。
Odontostomatologike proodos Pub Date : 1989-08-01
G N Spyropoulos, A N Kourteli
{"title":"[Formation, composition, clinical implications and methods for removing the smeared layer from root canal walls].","authors":"G N Spyropoulos,&nbsp;A N Kourteli","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A layer, which is readily detectable at higher magnifications with scanning electron microscope (sem) is consistently seen on canal walls that have been endodontically instrumented. This layer in the international bibliography reported as smeared layer. The surface of this layer is amorphous, irregular and granular. Although the composition of this layer has not been completely determined, it probably contains fine inorganic particles of dentin produced by mechanical preparation of root canal walls. As well as some organic material from necrotic or vital pulp tissue, bacteria and blood cells. The clinical importance of the smeared layer is still not fully understood. It may be beneficial since it is known to plug the orifices of the dentinal tubules and to reduce the permeability of dentin. In addition, the Smeared layer covering prepared areas of root canal prevents medicaments and filling materials from penetrating the dentinal tubules on even contacting the canal wall. The formation of this layer, the composition, the clinical importance and various methods for removing the smeared layer from the system of root canals, is the object of this paper.</p>","PeriodicalId":76279,"journal":{"name":"Odontostomatologike proodos","volume":"43 4","pages":"307-13"},"PeriodicalIF":0.0,"publicationDate":"1989-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13662033","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 influence of mixing and heating on the compressive strength of investment materials]. 【搅拌和加热对投资材料抗压强度的影响】。
Odontostomatologike proodos Pub Date : 1989-08-01
T Papadopoulos, M Caracatsanis
{"title":"[The influence of mixing and heating on the compressive strength of investment materials].","authors":"T Papadopoulos,&nbsp;M Caracatsanis","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In the present study, the compressive strength of four representative dental investment materials was compared. The whole investigation was divided in three experiments. In the first one the effect of different ways of mixing on the compressive strength of the investments was examined. In the second the compressive strength of investments mixed mechanically under vacuum was compared: a) two hours after mixing, b) at the highest heating temperature and c) at room temperature after the heating procedure. In the third experiment, a comparison was made between the compressive strength of investments at the highest heating temperature. The investments were mixed mechanically under vacuum but half of the specimens were placed in a pressure device during setting. From the results obtained the following conclusions were made: a) Mixing mechanically under vacuum increases the compressive strength of the investments, b) the compressive strength of phosphate-bonded investments increases at the highest temperature of the heating procedure and c) the use of a pressure device during the setting of the investments results also in an increased compressive strength.</p>","PeriodicalId":76279,"journal":{"name":"Odontostomatologike proodos","volume":"43 4","pages":"339-46"},"PeriodicalIF":0.0,"publicationDate":"1989-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13662036","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 incidence of superimposition of permanent teeth in the orthopantomographs and in radiographs Status-X]. [正畸层析片和x线片中恒牙重叠的发生率[Status-X]。
Odontostomatologike proodos Pub Date : 1989-08-01
N D Spyropoulos, A N Donta
{"title":"[The incidence of superimposition of permanent teeth in the orthopantomographs and in radiographs Status-X].","authors":"N D Spyropoulos,&nbsp;A N Donta","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In this study 82 orthopantomographs and 82 Status-x radiographs of the same patients were evaluated in order to determine the incidence of superimposition of teeth in the two kinds of panoramic radiographs. The patients were 10 to 20 years of age and presented no crowding as judged clinically or from respective plaster casts. The results of this study showed that the superimposition occurs in 71.90% of the upper permanent teeth in the orthopantomographs and in 51.21% of the lower permanent teeth. In the Status-x radiographs the superimposition occurs in 54.87% of the upper permanent teeth. As regards localization the upper second premolars premolars showed the greatest incidence and the mandibular incisors the lowest incidence of superimposition in the orthopantomographs. In the Status-x radiographs the superimposition occurs more frequently in the upper canines and less frequently in the upper first molars. Comparing the two kinds of panoramic radiographs, it seems that superimposition is observed more frequently in the orthopantomographs by 17.03%.</p>","PeriodicalId":76279,"journal":{"name":"Odontostomatologike proodos","volume":"43 4","pages":"331-7"},"PeriodicalIF":0.0,"publicationDate":"1989-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13662035","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
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