bluuebunny/crossref_metadata_2025_split huggingface dataset:
Permeability of Dental Adhesives – A SEM Assessment
Authors: Malacarne-Zanon Juliana , de Andrade e Silva Safira M. , Wang Linda , de Goes Mario F. , Martins Adriano Luis , Narvaes-Romani Eliene O. , Anido-Anido Andrea , Carrilho Marcela R.O. 
Published: September 2019

Objectives: To morphologically evaluate the permeability of different commercial dental adhesives using scanning electron microscopy.Methods: Seven adhesive systems were evaluated: one three-step system (Scotchbond Multi- Purpose - MP); one two-step self-etching primer system (Clearfil SE Bond – SE); three two-step etch-and-rinse systems (Single Bond 2 – SB; Excite – EX; One-Step – OS); and two single-step selfetching adhesives (Adper Prompt – AP; One-Up Bond F – OU). The mixture of primer and bond agents of the Clearfil SE Bond system (SE-PB) was also tested. The adhesives were poured into a brass mold (5.8 mm x 0.8 mm) and light-cured for 80 s at 650 mW/cm2. After a 24 h desiccation process, the specimens were immersed in a 50% ammoniac silver nitrate solution for tracer permeation. Afterwards, they were sectioned in ultra-fine slices, carbon-coated, and analyzed under backscattered electrons in a scanning electron microscopy.Results: MP and SE showed slight and superficial tracer permeation. In EX, SB, and OS, permeation extended beyond the inner superficies of the specimens. SE-PB did not mix well, and most of the tracer was precipitated into the primer agent. In AP and OU, “water-trees” were observed all over the specimens.Conclusions: Different materials showed distinct permeability in aqueous solution. The extent of tracer permeation varied according to the composition of each material and it was more evident in the more hydrophilic and solvated ones. (Eur J Dent 2010;4:429-439)
The Prevalence and Treatment Outcomes of Primary Tooth Injuries
Authors: Arikan Volkan , Sari Saziye , Sonmez Hayriye 
Published: September 2019

Objectives: The aim of the present study was to evaluate the type and prevalence of primary tooth injuries, as well as their treatment and treatment outcomes, among children referred to the Department of Pedodontics at the Ankara University Faculty of Dentistry in Turkey.Methods: The study population consisted of patients applying to the department with a primary tooth injury over a period of 21 months. Fifty-one patients presented with trauma to 99 primary teeth. Clinical and radiographic examinations were conducted on each patient. Age, sex, time, cause of injury, and number of teeth affected were recorded, and the type of trauma was identified according to Andreasen’s classification. The teeth were treated by one of the authors.Results: The majority of trauma occurred between the ages of 2 and 4. The most common type of injury was lateral luxation (33.3%). Most injuries (33.3%) presented during May. The most common form of treatment was follow-up only (39.4%), followed by extraction (29.3%) and root canal treatment (12.1%). The average follow-up period was 11 months. During the follow-up period, complications were observed in 4 teeth.Conclusions: The study results show that in the absence of acute symptoms, parents tend not to apply to a dental clinic for children’s injuries. This finding highlights the importance of informing the public about primary tooth injuries and their consequences. (Eur J Dent 2010;4:447-453)
Endonasal Arteriovenous Fistula Following Transsphenoidal Resection of Pituitary Adenoma Treated with N-Butyl-2-Cyanoacrylate
Authors: Saal-Zapata Giancarlo , Castro Walter Durand , Varela Rodolfo Rodriguez 
Published: September 2019

AbstractVascular lesions of the external carotid artery after transsphenoidal pituitary surgery are rare. Immediate diagnosis must be done and endovascular embolization is the treatment of choice.We report the case of a 53-year-old woman with visual complaints who underwent transsphenoidal surgery of a pituitary adenoma with good clinical and radiological evolution. Five days after surgery nasal tampons were removed and suddenly the patient started to bleed: nasal packing and air way protection were required. Digital subtraction angiography revealed an endonasal arteriovenous fistula with a feeder from the sphenopalatine artery and drainage to sphenopalatine veins. Embolization with N-butyl-2-cyanoacrylate was performed with total obliteration of the arteriovenous fistula. We suggest that endovascular treatment of external carotid artery lesions after transsphenoidal surgery is the best alternative in cases of active bleeding.
Assessment of the Antibacterial Activity of Calcium Hydroxide Combined with Chlorhexidine Paste and Other Intracanal Medications against Bacterial Pathogens
Authors: Silveira Cláudia Fernandes de Magalhães , Cunha Rodrigo Sanches , Fontana Carlos Eduardo , Martin Alexandre Sigrist de , Almeida Gomes Brenda Paula Figueiredo de , Motta Rogério Heládio Lopes , Silveira Bueno Carlos Eduardo da 
Published: September 2019

ABSTRACTObjectives: The purpose of this study was to assess the in vitro antibacterial activity of four formulations of calcium hydroxide [Ca(OH)2] pastes against Enterococcus faecalis, Staphylococcus aureus, Pseudomonas aeruginosa and Streptococcus mutans. Methods: A broth dilution test was performed, and the lengths of time for different pastes to kill the microbial cells were recorded and statistically analyzed. The following medications were assessed: Group I  Ca(OH)2 + 2.0% chlorhexidine (CHX) gel; Group II  Ca(OH)2 + camphorated paramonochlorophenol (CMCP) and propylene glycol; Group III  Ca(OH)2 + propylene glycol; Group IV  Ca(OH)2 + saline. Results: The results showed that E. faecalis was the most resistant microorganism. Groups II and III eliminated all the microbial cells in 15 seconds. Group I took 45 seconds to eliminate E. faecalis. Conclusions: Under the conditions of this study, it was concluded that all the intracanal medications tested showed antibacterial activity. However, the association of Ca(OH)2 and PMCC or Ca(OH)2 and propylene glycol showed a better performance, since Groups II and III took a shorter length of time than the other groups to eliminate S. aureus and E. faecalis. (Eur J Dent 2011;5:1-7)
Lack of Correlation between Periodontitis and Renal Dysfunction in Systemically Healthy Patients
Authors: Brotto Renata Squariz , Vendramini Regina Célia , Brunetti Iguatemy Lourenço , Marcantonio Rosemary Adriana Chierici , Ramos Adriana Pelegrino Pinho , Pepato Maria Teresa 
Published: September 2019

ABSTRACTObjectives: The aim of this study was to assess a suggested association between periodontitis and renal insufficiency by assaying kidney disease markers. Methods: Variables used to diagnose periodontitis were: (i) probing pocket depth (PPD), (ii) attachment loss (AL), (iii) bleeding on probing (BOP), (iv) plaque index (PI) and (v) extent and severity index. Blood and urine were collected from 60 apparently healthy non-smokers (men and women), consisting of a test group of 30 subjects with periodontitis (age 46±6 yrs) and a control group of 30 healthy subjects (age 43±5 yrs). Kidney function markers (urea, creatinine, uric acid and albumin contents) were measured in the serum and urine. Also, the glomerular filtration rate was estimated from creatinine clearance, from the abbreviated Modification of Diet in Renal Disease formula and from the albumin : creatinine ratio in a 24–h sample of urine. Results: It was found that the control group had a greater mean number of teeth than the test group and that the two groups also differed in PPD, AL, BOP and PI, all these variables being higher in the test group (P=0.006). For the extent and severity index of both PPD and AL, the test group had much higher medians of both extent and severity than the control group (P=0.001). With regard to kidney function, none of the markers revealed a significant difference between the control and test groups and all measured values fell within the reference intervals. Conclusions: It is proposed that severe periodontitis is not associated with any alteration in kidney function. (Eur J Dent 2011;5:8-18)
Evaluation of Mental Index, Mandibular Cortical Index and Panoramic Mandibular Index on Dental Panoramic Radiographs in the Elderly
Authors: Hastar Esin , Yilmaz H Huseyin , Orhan Hikmet 
Published: September 2019

ABSTRACTObjectives: The aims of this study were to evaluate the influence of gender and dental status on the mental index, mandibular cortical index and panoramic mandibular index from dental panoramic radiographs in elderly who had osteoporosis or did not have osteoporosis. Methods: Panoramic radiographs of 487 elderly dental patients (age range 60-88 years) were evaluated. It were recorded osteoporotic status according to the patients' medical anamnesis and values of the mandibular cortical index (MCI), panoramic mandibular index (PMI), mandibular cortical width (MCW) Results: Dental status was statistically significantly associated with the mandibular cortical width, panoramic mandibular index and the categories of MCI (P<.05). There were statistically different mandibular cortical width and panoramic mandibular index values in patients with osteoporosis and without osteoporosis (P<.05) Conclusions: Our study showed that there were statistically significant differences according to gender, dental status, and values of the MCW, MCI and PMI between patients with and those without osteoporosis. (Eur J Dent 2011;5:60-67)
Three-Year Follow Up of Customized Glass Fiber Esthetic Posts
Authors: Costa Rogério Goulart da , Morais Eduardo Christiano Caregnatto de , Leão Moira Pedroso , Bindo Márcio José Fraxino , Campos Edson Alves , Correr Gisele Maria 
Published: September 2019

ABSTRACTCustomized glass fiber posts that is well adjusted into the root canal and have mechanical properties similar to those of dentin may be a suitable treatment for severely compromised endodontically treated teeth. This article reports a 3-year follow up of severely damaged endodontically treated teeth restored with unidirectional fiber glass customized post and core system instead of a conventional fiber post. The fabrication of this glass fiber customized post is a simple technique, providing an increased volume of fibers into the root canal, and an adequate polymerization of the post-core system. Over a three-year period, the treatments demonstrated good clinical and radiographic characteristics, with no fracture or loss of the post and/or crown. This technique can be considered effective, less invasive, and suitable for restore endodontically treated teeth. (Eur J Dent 2011;5:107-112)
Comparison of the Degree of Conversion of Resin Based Endodontic Sealers Using the DSC Technique
Authors: Cotti Elisabetta , Scungio Paola , Dettori Claudia , Ennas Guido 
Published: September 2019

ABSTRACTObjectives: The aim of this study was to determine the degree of conversion (DC) of three resin based endodontic sealers using the DSC technique. Methods: The sealers tested were: EndoREZ (ER) (Ultradent, South Jordan, UT); EndoREZ with Accelerator (ER+A) (Ultradent, South Jordan, UT); RealSeal (RS) (SybronEndo, Orange, CA). Two LED units were used to activate the sealers: UltraLume LED 5 (Ultradent, South Jordan, UT, USA); Mini LED Satelec (Satelec Acteon Group, Mérignac Cedex, France). Samples of 4.0 mg were analyzed with a DSC 7 calorimeter (Perkin Elmer Inc., Wellesley, MA, US). Each specimen was irradiated by each lamp four times for 20 seconds at an interval of 2 mins, while the DSC 7 recorded the heat flow developed during the treatment. The degree of conversion and the kinetic curves were calculated from the values of heat developed during each polymerization. The data were statistically analysed with a Kruskal-Wallis one-way ANOVA multiple range and Student-Newman-Keuls (SNK) tests at a P value of .05. Results: Statistically significant differences were found in the degree of conversion among the sealers: ER+A showed the highest values with both lamps. Conclusions: The higher polymerization rate in resin sealers is obtained with the addition of a catalyst. (Eur J Dent 2011;5:131-138)
Bleaching Agent Action on Color Stability, Surface Roughness and Microhardness of Composites Submitted to Accelerated Artificial Aging
Authors: Rattacaso Raphael Mendes Bezerra , Garcia Lucas de Fonseca Roberti , Aguilar Fabiano Gamero , Consani Simonides , Pires-de-Souza Fernanda de Carvalho Panzeri 
Published: September 2019

ABSTRACTObjectives: The purpose of this study was to evaluate the bleaching agent action on color stability,
surface roughness and microhardness of composites (Charisma, Filtek Supreme and Heliomolar - A2) submitted to accelerated artificial aging (AAA). Methods: A Teflon matrix (12 x 2 mm) was used to fabricate 18 specimens (n=6) which, after polishing (Sof-Lex), were submitted to initial color reading (ΔE), Knoop microhardness (KHN) (50 g/15 s load) and roughness (Ra) (cut-off 0.25 mm) tests. Afterwards, the samples were submitted to AAA for 384 hours and new color, microhardness and roughness readings were performed. After this, the samples were submitted to daily application (4 weeks) of 16% Carbamide Peroxide (NiteWhite ACP) for 8 hours and kept in artificial saliva for 16 hours. New color, microhardness and roughness readings were made at the end of the cycle, and 15 days after bleaching. Results: Comparison of the ΔE means (2-way ANOVA, Bonferroni, P<.05) indicated clinically unacceptable color alteration for all composites after AAA, but without significant difference. Statistically significant increase in the KHN values after AAA was observed, but without significant alterations 15 days after bleaching. For Ra there was no statistically significant difference after AAA and 15 days after bleaching. Conclusions: The alterations promoted by the bleaching agent and AAA are material dependent. (Eur J Dent 2011;5:143-149)
Influence of Heat Treatment and Veneering on the Storage Modulus and Surface of Zirconia Ceramic
Authors: Siavikis Georgius , Behr Michael , der Zel Jef M van , Feilzer Albert J , Rosentritt Martin 
Published: September 2019

ABSTRACTObjectives: Glass-ceramic veneered zirconia is used for the application as fixed partial dentures. The aim of this investigation was to evaluate whether the heat treatment during veneering, the application of glass-ceramic for veneering or long term storage has an influence on the storage modulus of zirconia. Methods: Zirconia bars (Cercon, DeguDent, G; 0.5x2x20 mm) were fabricated and treated according to veneering conditions. Besides heating regimes between 680°C and 1000°C (liner bake and annealing), sandblasting (Al2O3) or steam cleaning were used. The bars were investigated after 90 days storage in water and acid. For investigating the influence of veneering, the bars were veneered in press- or layer technique. Dynamic mechanical analysis (DMA) in a three-point-bending design was performed to determine the storage modulus between 25°C and 200°C at a frequency of 1.66 Hz. All specimens were loaded on top and bottom (treatment on pressure or tensile stress side). Scanning electron microscopy (SEM) was used for evaluating the superficial changes of the zirconia surface due to treatment. Statistical analysis was performed using Mann Whitney U-test (α=0.05). Results: Sintered zirconia provided a storage modulus E’ of 215 (203/219) GPa and tan δ of 0.04 at 110°C. A 10%-decrease of E’ was found up to 180°C. The superficial appearance changed due to heating regime. Sandblasting reduced E’ to 213 GPa, heating influenced E’ between 205 GPa (liner bake 1) and 222 GPa (dentin bake 1). Steam cleaning, annealing and storage changed E’ between 4 GPa and 22 GPa, depending on the side of loading. After veneering, strong E’-reduction was found down to 84 GPa and 125 GPa. Conclusions: Veneering of zirconia with glass-ceramic in contrast to heat treating during veneering procedure had a strong influence on the modulus. The application of the glass-ceramic caused a stronger decrease of the storage modulus. (Eur J Dent 2011;5:191-198)
Early Diagnosis of Bilateral Supplemental Primary and Permanent Maxillary Lateral Incisors: A Case Report
Authors: Yildirim Gozde , Bayrak Sule 
Published: September 2019

ABSTRACTSupernumerary teeth occur frequently in permanent dentition, but they are rarely found in primary dentition. Supernumerary teeth of orthodox shape and size that resemble normal dentition are called ‘supplemental teeth’. Supplemental teeth are less common than supernumerary teeth and are often overlooked because of their normal shape and size. Supplemental teeth may cause esthetic problems, delayed eruption and crowding, and they require early diagnosis and treatment to prevent complications. The case reported here is one of bilateral supplemental teeth impeding the eruption of permanent maxillary lateral incisors, and it emphasizes the importance of early diagnosis and treatment during early mixed dentition. (Eur J Dent 2011;5:215-219)
Restoring Function and Aesthetics in a Class II Division 1 Patient with Amelogenesis Imperfecta: A Clinical Report
Authors: Doruk Cenk , Ozturk Firat , Sari Fatih , Turgut Mehmet 
Published: September 2019

ABSTRACTAmelogenesis imperfecta (AI) encompasses a complicated group of hereditary conditions that cause developmental alterations in the structure of the enamel in the absence of a systemic disorder. AI primarily affects the quality and/or quantity of dental enamel, and it may affect all or only some of the teeth in the primary and/or permanent dentition. This clinical report describes the oral rehabilitation of a 21-year-old man diagnosed with hypomaturation-type AI. He presented with discolored and mutilated teeth. Cephalometrically, the patient has skeletal class II malocclusion due to mandibular deficiency considered as a result of maxillary constriction. The interdisciplinary approach was followed because of the complex needs of the patient. The aim of treatment was to restore aesthetics, improve malocclusion and masticatory function. Aesthetic and functional expectations were met with metal ceramic restorations. In this report, the interdisciplinary approach for a patient with AI and a malocclusion is described. (Eur J Dent 2011;5:220-228)
Temperature Rise during Resin Composite Polymerization under Different Ceramic Restorations
Authors: Yondem Isa , Altintas Subutay Han , Usumez Aslihan 
Published: September 2019

ABSTRACTObjectives: The purpose of this study was to measure temperature increase induced by various light polymerizing units during resin composite polymerization beneath one of three types of ceramic restorations. Methods: The resin composite (Variolink II) was polymerized between one of three different ceramic specimens (zirconium oxide, lithium disilicate, feldspathic) (diameter 5 mm, height 2 mm) and a dentin disc (diameter 5 mm, height 1 mm) with a conventional halogen light, a high intensity halogen light, or an LED unit. The temperature rise was measured under the dentin disc with a J-type thermocouple wire connected to a data logger. Ten measurements were carried out for each group. The difference between the initial and highest temperature readings was taken and the 10 calculated temperature changes were averaged to determine the mean value in temperature rise. Two way analysis of variance (ANOVA) was used to analyze the data (polymerizing unit, ceramic brand) for significant differences. The Tukey HSD test was used to perform multiple comparisons (α=.05). Results: Temperature rise did not vary significantly depending on the light polymerizing unit used (P=.16), however, the type of ceramic system showed a significant effect on temperature increases (P<.01). There were no statistically significant differences between lithium disilicate and feldspathic ceramic systems (P >.05); in comparison, the resin composite polymerized under the zirconium oxide ceramic system induced a significantly lower temperature increase than the other ceramic systems tested (P<.05) Conclusions: The resin composite polymerized beneath zirconium oxide ceramic system induced significantly smaller temperature changes. The maximal temperature increase detected in all groups in this study was not viewed as critical for pulpal health. (Eur J Dent 2011;5:305-309)
Sociodemographic Comparison in Patients with Subjective and Objective Clinical Findings of Temporomandibular Dysfunctions
Authors: Sener Sevgi , Akgunlu Faruk 
Published: September 2019

ABSTRACTObjectives: To investigate the differences in healthy persons and patients with myofacial pain without limitation, objective signs of temporomandibular dysfunctions (TMDs), and both subjective and objective features with respect to age, gender, effects of TMDs on daily life, economic condition, smoking habit, marital status, and education. Methods: Sociodemographic information of 296 persons (212 females and 84 males) was evaluated. Subjects were categorized into 4 groups according to clinical findings: no TMD symptoms (control, C); myofacial pain without limitation (MP); objective signs (PWOS); or both subjective and objective features (MP/PWOS). Results: The C, MP, PWOS, and MP/PWOS groups comprised 64 (22%), 66 (22%), 68 (23%), and 98 (33%) subjects. PWOS and MP/PWOS differed significantly between the 15–30 and 30–45 year age groups. Although patients with PWOS were significantly higher in the 15–30 year age group, patients with MP/PWOS were significantly higher in the 30–45 year age group. A significant difference was observed with respect to gender in all groups except the control group. The effects of TMD symptoms on daily life differed statistically among the groups. Conclusions: Female gender is a risk factor for TMDs. Females are more vulnerable to subjective and objective signs than males. During general dental examinations, females should be checked for TMD symptoms. PWOS manifest before MP. Moreover, mechanical derangements can cause myofacial pain. MP can mostly affect daily life, but PWOS tend to be prohibitive. (Eur J Dent 2011;5:380-386)
Conservative Approach for Restoring Posterior Missing Tooth with Fiber Reinforcement Materials: Four Clinical Reports
Authors: Karaarslan Emine Sirin , Ertas Ertan , Ozsevik Semih , Usumez Aslihan 
Published: September 2019

ABSTRACTAdhesively luted, fiber-reinforced, composite-inlay, retained fixed-partial dentures can be a clinical alternative for the replacement of missing posterior teeth in selective situations. This type of restoration allows for satisfactory esthetics and reduced tooth preparation compared to a conventional, fixed-partial denture. This clinical report describes the use of a fiber-reinforced, compositeinlay, retained fixed-partial denture as a conservative alternative for the replacement of missing posterior teeth. (Eur J Dent 2011;5:465-471)