Abstract:
:The color change resulting from storage in water was measured on a number of experimental and proprietary complex resins. The experimental resins contained varying amounts of amine (DEPT or DEBA), benzoyl-peroxide (BPO) and inhibitor (MHQ). The proprietary resins had earlier been analyzed as regards the composition of the monomer and the content of amine and peroxide. The color change of DEPT-containing resins was positively correlated with the DEPT/BPO ratio, and negatively correlated with the monomer content of BISGMA. DEBA-containing resins were more color stable than resins containing equimolar concentrations of DEPT. The color change was independent of MHQ up to a certain concentration; above this the color change increased with the amount of MHQ. In general, the light activated materials were more color stable than the chemically activated materials. The color change was not affected by pH, but decreased when the oxygen had been removed from the storage water. The test for color stability using UV-light irradiation gave results for proprietary resins that were not correlated with the results obtained by water storage.
journal_name
Acta Odontol Scandjournal_title
Acta odontologica Scandinavicaauthors
Asmussen Edoi
10.3109/00016358309162298subject
Has Abstractpub_date
1983-01-01 00:00:00pages
11-8issue
1eissn
0001-6357issn
1502-3850journal_volume
41pub_type
杂志文章abstract:OBJECTIVE:Ozone was suggested for treatment of hypersensitive dentin. The purpose of this study was to investigate the effect of ozone, with or without the use of desensitizing agents, on patency and occlusion of simulated hypersensitive dentin. MATERIALS AND METHODS:Sixty standardized dentin slabs were randomly divid...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章,随机对照试验
doi:10.3109/00016357.2011.572290
更新日期:2011-11-01 00:00:00
abstract::The aim of this study was to explore the association between negative experiences during children's first dental visit and any subsequent dental anxiety and related factors in three dental clinics in the Veneto Region of Italy. For this purpose, parents of 378 children filled out a questionnaire. Factors related to ch...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016350260248274
更新日期:2002-10-01 00:00:00
abstract::The aim of this study was to analyze the timing of first fillings posteruptively in a cohort comprising 51 asthmatic children receiving inhaled corticosteroids and living in three communities in Ostrobothnia, Finland. They had all been born in the 1980s and had had asthma check-ups in the local asthma policlinic. A gr...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/000163598423018
更新日期:1998-02-01 00:00:00
abstract:OBJECTIVE:Monocyte-derived macrophages (MDMs) ability to phagocytize and produce nitric oxide (NO) was tested against root-canal strains of Enterococcus faecalis submitted to alkaline stress. Root-canal strains were also compared with urine Enterococci. MATERIALS AND METHODS:Enterococcus faecalis were stressed with al...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016357.2018.1533142
更新日期:2019-03-01 00:00:00
abstract::Proton microprobe analysis was used to determine the fluoride concentrations in enamel and dentin surfaces exposed to a fluoride-containing and a conventional amalgam in vitro. After seven weeks of exposure, a considerable fluoride uptake was demonstrated from the fluoride-containing amalgam. The fluoride deposition w...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358009033594
更新日期:1980-01-01 00:00:00
abstract::The purpose of the present study was to determine the surface hydrophobicity of small oral spirochetes and to receive an impression of the molecular organization of the cell surfaces. Nine spirochete strains with one endoflagellum from each cell-end (1:2:1 spirochetes) and eight with two endoflagella from each cell-en...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016359109041134
更新日期:1991-02-01 00:00:00
abstract::Objective: This study evaluated human leucocyte antigen-G gene polymorphisms in patients with periodontitis and healthy controls.Material and methods: The insertion/deletion polymorphism of 14 bp and a single nucleotide polymorphism (SNP) C > G on the position +3142 of the 3' untranslated region of the gene were analy...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016357.2019.1662942
更新日期:2020-03-01 00:00:00
abstract:OBJECTIVE:This cross-sectional study assessed the prevalence and severity of the enamel defects, known as Molar-Incisor Hypomineralization (MIH) and its relationship to dental caries. MATERIALS AND METHODS:A sample of 1157 schoolchildren (population based), aged 6-12 years, of the Araraquara city-Brazil, was evaluated...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2012.734412
更新日期:2013-05-01 00:00:00
abstract:OBJECTIVE:Sense of Coherence (SOC) has been associated with perceived oral health measures, but the contribution of SOC to clinical measures is still unclear. The aim of the present cross-sectional study was to evaluate the potential association between periodontal health outcomes, such as periodontal clinical paramete...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2016.1154601
更新日期:2016-07-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to evaluate the effect of three different irrigating solutions (17% EDTA, 10% citric acid and 2.5% NaOCl) and KTP laser irradiation on apical leakage using an electrochemical method. MATERIALS AND METHODS:Sixty extracted single-rooted human teeth with mature apices were instrume...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章,随机对照试验
doi:10.3109/00016357.2011.615338
更新日期:2012-09-01 00:00:00
abstract::Seventy-three children with submucous cleft palate (38 girls and 35 boys), mean age 8.2 years (range 7.7-9.5), were studied retrospectively from orthopantomograms. Dental abnormalities in permanent dentition were found in 26 patients (36%). Missing teeth, mainly lower 2nd premolars, upper lateral incisors, and upper 2...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016350410006572
更新日期:2004-06-01 00:00:00
abstract::Oral adhesion of yeasts probably occurs by interaction between yeast cell adhesins and oral epithelial cell receptors. In Candida albicans mannoprotein, glucan, chitin, cell wall proteins, and lipids are possible adhesins. Mannoprotein appears as a fibrillar or floccular outermost layer in stationary-phase cells grown...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章,评审
doi:10.3109/00016359009012733
更新日期:1990-02-01 00:00:00
abstract:OBJECTIVES:(i) To validate caries risk profiles assessed with a computer program against actual caries development in preschool children, (ii) to study the possible impact of a preventive program on the risk profiles, and (iii) to compare the individual risk profiles longitudinally. MATERIAL AND METHODS:Caries risk wa...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016350802714734
更新日期:2009-01-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate and compare marginal adaptation of composite restorations assessed by a dye staining method and by scanning electron microscopy (SEM) analysis. MATERIAL AND METHODS:Twenty bovine incisors were selected and ground flat to expose dentin. Two cylindrical cavities were prepa...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016350500474565
更新日期:2006-06-01 00:00:00
abstract::Intra-examiner consistency in the recording of single traits of malocclusion according to a previously described method was assessed by duplicate registrations on study models of 292 children. The level of agreement was expressed by the consistency ratio and the phi coefficient. A high level of consistency was obtaine...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357709056005
更新日期:1977-01-01 00:00:00
abstract::The purpose of this study was to assess the antimicrobial effect of TiF4 as compared with equimolar solutions of NaF, APF, and SnF2 and to evaluate the effect, if any, on bacterial growth on topically treated tooth surfaces. In an in vitro study, paper discs impregnated with 20 microliters of equimolar solutions of Sn...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016359009005872
更新日期:1990-06-01 00:00:00
abstract::The aim was to study how three cues (patient's age and angular position and degree of impaction of the molar) were distributed among removed mandibular third molars associated with pathologic conditions and to compare these results with dentists' treatment decisions in another group of molars consisting of asymptomati...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016359709059202
更新日期:1997-12-01 00:00:00
abstract::The craniofacial morphology of 48 consecutive adult males with isolated cleft palate was studied by means of lateral cephalograms at the mean age of 18.8 years. Twelve of the patients had received pharyngeal flap surgery between 4 and 12 years of age (mean age 6 years) to improve speech. No significant differences wer...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016350310003846
更新日期:2003-06-01 00:00:00
abstract::In a Finnish rural population 79.0% of 233 persons had the cusp of Carabelli in first upper molars. Of these 20% showed "positive cusps" and 59% "negative cusps". The occurrence of the structure was bilateral with varying degrees of asymmetry, but if there was no structure on one side of the jaw, the other never showe...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357509027561
更新日期:1975-01-01 00:00:00
abstract::The adolescent growth of 212 randomly selected Swedish urban children has been investigated by using a graphical analysis of unsmoothed increments of height. The adolescent growth period has been divided into the pubertal spurt and the postpubertal period. On average, the pubertal spurt began at 10.0 years in girls, a...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358008997719
更新日期:1980-01-01 00:00:00
abstract::We assessed the effects of oral self-care on periodontal health indicators among adults with diabetes. The sample consisted of 120 dentate individuals, all of whom were regular patients at the Salo Regional Hospital Diabetes Clinic in southwest Finland. Clinical periodontal examination included identification of visib...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/000163501317153257
更新日期:2001-12-01 00:00:00
abstract::The seating of MOD composite inlays was determined before and after cementation with one of three cements of different viscosities. The seating was determined by measuring the axial discrepancy. Inlays were seated by strong finger pressure or by the ultrasonic insertion (USI) technique. The axial discrepancy of luted ...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016359409096376
更新日期:1994-02-01 00:00:00
abstract::The purpose of the study was to compare the efficacy of two electric toothbrushes (Philips HP555 and the Philips Jordan 2-action Plaque Remover HP510). A manual toothbrush Jordan V-shaped, medium) served as control. Fifty subjects, aged 18-60 years, participated in a randomized, single-blind, 3 x 3 weeks crossover stu...
journal_title:Acta odontologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1080/000163500429163
更新日期:2000-08-01 00:00:00
abstract::The aim of this study was to evaluate the caries-preventive effect of an oral health program for preschool children living in a multicultural, low socio-economic area. In total, 804 2-year-old children were invited and recalled every 3rd month to an outreach facility for parent education and toothbrushing instruction....
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016350510019900
更新日期:2005-06-01 00:00:00
abstract::Unfixed as well as glutaraldehyde-fixed pelleted cells from pure cultures of Streptococcus mutans subspecies sobrinus (B13) were embedded in glycolmethacrylate. Ultrathin were sections immunoperoxidase labelled with rabbit anti-S. mutans sobrinus gamma-globulin. It was found that unfixed specimens became labelled as p...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358209024071
更新日期:1982-01-01 00:00:00
abstract::The aims of this study were to analyze and assess dimensions of the Dental Fear Survey (DFS), which has been developed to measure dental fears and phobias. The present study of 313 dental-phobic individuals analyzed the DFS in a factor analysis using an exploratory (EFA) and a confirmatory (CFA) factor analysis to sho...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016359709114970
更新日期:1997-10-01 00:00:00
abstract::An index for evaluation of dental wear based on Ryge's system comprising three satisfactory and two not acceptable categories was tested in two different age groups of individuals with brain damage. Group 1 consisted of 12 individuals, 3 women and 9 men, with a mean age of 34.5 years. Group 2 consisted of 13 individua...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358709096359
更新日期:1987-10-01 00:00:00
abstract::Bulimia nervosa is increasingly recognized as an eating disorder with significant medical and dental complications, including increased caries rate, thermal hypersensitivity, enamel erosion, xerostomia, and parotid gland hypertrophy. This article reviews the oral manifestations in bulimia nervosa and presents a questi...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章,评审
doi:10.3109/00016359109005929
更新日期:1991-12-01 00:00:00
abstract::A 55Fe excited X-ray fluorescence method has been developed for the quantitative nondestructive analysis of Ca content in surface layers of teeth. To eliminate the effects due to curved enamel surface and the localisation of the tooth a special measuring geometry was constructed. The reproducibility of the method rema...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358209041119
更新日期:1982-01-01 00:00:00
abstract::Fluorescent microspheres (FM) were used to visualize and semi-quantify blood flow in the temporomandibular joint (TMJ) during experimental unilateral traumatic occlusion of the maxillary and mandibular molar teeth in 30 young rats. At different postoperative observation periods varying from 1 to 30 days FM were inject...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016359309040580
更新日期:1993-10-01 00:00:00