STATEMENT of PROBLEM: Luster loss in esthetic anterior ceromer restoration can occur and can be related with rough surface texture. Understanding durability of surface finishing methods like polishing and surface coating have critical importance. PURPOSE: This study evaluated the effect of tooth brushing and thermal cycling on surface luster of 3 ceromer systems (Artglass, Targis, Sculpture) treated with different surface finishing methods. MATERIAL AND METHODS: Seventy-two samples were prepared: 12 for control group Z100, 12 for Artglass, 24 for Targis, and 24 for Sculpture. Half of the Targis and Sculpture were polished according to the manufacturer's recommendation. The rest of the samples were coated with staining and glazing solution for Targis and Sculpture, respectively. All specimens were subjected to 10,000 cycles between 5 degreesC and 55 degreesC with 30 seconds dwell time. Tooth brushing abrasion tests were performed in a customized tooth brushing machine with 500g backand forth for 20,000 cycle. Luster comparisons were based on grading after direct observation, and light reflection area was measured with Image analysis software. RESULTS: All materials showed an decrease in luster grade after thermal cycling and tooth brushing. The post-tooth brushing results revealed that the glazed Sculpture had greater mean luster grade than did any other groups. While, the stained Targis group showed greatest changes after tooth brushing (p>0.05), polished Targis and Sculpture did not show significant changes. However, glazed Sculpture showed discretely fallen out glaze resin. CONCLUSION: From the results of this study, all of the ceromer specimens were much glossy than control composite group after tooth brushing. coatings used for Targis and Sculpture had not durability for long term use.
Sculpture ; Tooth*

Michelangelo was a Renaissance artist showing many works. As the secrets of Michelangelo's art have been revealed recently, various studies have been carried out, revealing the secret code of human anatomy in his work. This was an important clue that Michelangelo dissected a huge number of human beings and was a anatomist with considerable expertise. Brazilian doctors Jalousie Bahaetto and Marcelo G Gli Oliveira, from the Vatican Sistina ceiling murals to the sculpture Pieta, examined the works of the Renaissance genius artist Michelangelo in detail and found anatomical elements in many works. Although some interpretations are controversial, it would be a good experience for medical doctor to appreciate masterpieces of Michelangelo in comparison to their human anatomy.
Anatomists ; Humans ; Sculpture

The color stability of current prosthetic composites is unknown, even though the quality of com-posite materials has been improving. This study examined the intrinsic color stability of various current prosthetic resins (ceramic-polymers) after an accelerated aging process and the extrinsic color stability after immersion in a coffee solution. By comparing the amount of dis-coloration after aging with that without aging, the effect of the accelerated aging process on external discoloration could be evaluated. Three current prosthetic composites (Artglass, Targis, Sculpture), one light polymerized direct composite (Z100) and one dental porcelain control (Ceramco) were assessed. The col-or changes (delta E) of all the specimens were determined using the CIE L*a*b* color order system with a reflected spectrophotometer. The results were as follows: 1. The prosthetic composite materials subjected to the accelerated aging test showed no sig-nificant difference in color changes (p> .05). 2. In the coffee solution immersion test after the aging process, the color changes of the Targis and Artglass groups were not different from that of the Z100 group, which showed the highest color change. 3. In the immersion only test, a significantly high color change was observed in the sculpture glazing group. 4. The aging process influenced on the color changes more in the Targis, Artglass and Z100 groups than in the Sculpture and Ceramco groups.
Aging* ; Coffee* ; Dental Porcelain ; Immersion* ; Polymers ; Sculpture

OBJECTIVE: The purpose of this study was to identify differences in thinking between schizophrenic patients and healthy subjects with linguistic-philosophical approach and to develop a tool to measure pathological thinking. METHODS: Approximately 50 cards(pictures of either representational or abstract sculptures and paintings) from the previous experiment(1997) were carefully examined and 10 cards were selected based on their variety and promptness of the response. Twenty-four schizophrenic patients and 19 healthy subjects participated in this experiment. Participants were required to give a title to each picture. Their responses were analysed based on the forms of thinking, abstractness(or concreteness) and the category of the title. Each response was also coded either direct or indirect. RESULTS: 1) Schizophrenic patients emitted more direct and simple descriptive responses whereas healthy subjects showed projection-related direct traits, indirect traits, indirect association and generalization. 2) Both groups tended to utilize the whole rather than parts. Schizophrenic group depended more on the whole pictures than healthy group. Healthy subjects showed more generalization tendency with parts. 3) Both groups preferred concrete titles to abstract ones. Schizophrenic group(95.3%) used more concrete titles than healthy group(71.4%) and healthy group(28.65%) used more abstract titles than schizophrenic group(4.7%). 4) Schizophrenic patients(73.5%) showed more directness in thinking than healthy subjects, whereas healthy subjects(58.7%) more indirectness. CONCLUSIONS: 1) Schizophrenic patients clearly showed direct and simple forms of thinking and expressive language, lacking reasoning, and systematic processing. Additionally, schizophrenic patients simply responded to the whole and used concrete and direct expression. 2) Replication study is warranted to improve reliability and validity of the tool we developed. Research on individual differences needs to be conducted to measure differences among individuals and change over time in an individual. 3) Further study on the factors which might be related to forms of thinking and language expressions, such as intelligence is warranted.
Generalization (Psychology) ; Humans ; Individuality ; Intelligence ; Reproducibility of Results ; Schizophrenia ; Sculpture ; Thinking

Recently the 2nd generation laboratory composite resins were introduced. Although the mechanical properties of these composite resins have been improved, there were some disadvantages such as discoloration, low abrasion resistance and debonding between metal and resin. The purpose of this study was to evaluate the tensile bond strength between non-pecious dental alloy(verabond) and four veneering reinforced composite resins: Targis(Ivoclar Co.,U.S.A.), Artglass(Kulzer CO., Gemany). Sculpture(Jeneric Pentron Co., U.S.A.), and Estenia(Kurary Co., Japan). All test metal specimens were polished with #1,000 SiC paper, and sandblasted with 250micrometer aluminum oxide. After then, according to manufacturer's instructions metal adhesive primer and veneering resins were applied. All test specimens were divided into two groups. One group was dried in a desiccator at 25degrees C for 3 days, the other group was subjected to thermal cycling(2,000x) in water(5/55degrees C). Tensile bond strength was measured using Instron Universal Testing machine and the fractured surface was examined under the naked eyes and scanning microscope. Within the limitations imposed in this study, the following conclusions can be drawn: 1. in no-thermal cycling groups, there were no significant differences between Estenia and VMK68 but there were significant differences between Targis, Artglass, Sculpture and VMK68(p<0.05). 2. in no-thermal cycling resin groups, the highest tensile bond strength was observed in Estenis and there were significant differences between Estenia and the other resins(p<0.05). 3. Before and after thermal cycling, there were significant differences in tensile bond strength of Targis and Artglass(p<0.05). The tensile bond strength of Artglass was decreased and that of Targis was increased. 4. in no-thermal cycling groups, Artglass showed mixed fracture modes(95%), but after thermal cycling, Artglass showed adhesive fracture modes(75%).
Adhesives ; Aluminum Oxide ; Composite Resins* ; Dental Alloys* ; Sculpture

Indirect composite resin are used as an popular effective esthetic material in prosthetic dentistry, often with metallic substructure that provides support for restorations. Recently, new indirect composite resins as a substitute of ceramic have been developed. These resins provide good esthetics, with a wide range of hue and chroma. And the flexural strength of those is in the range of 120-150MPa, which is higher than that of feldspathic ceramic, and similar tot hat of Dicor. Although it has many merits, one of the major clinical problems of composite resins is the bond failure between metal and resin due to insufficient interfacial bond strength. The purpose of this study was to evaluate shear bond strength of the reinforced indirect composite resin to dental alloys. Three different composite resin systems(Artglass . Sculpture , Targis ) as test groups and ceramic(VMK 68 ) as control group were bonded to Ni-Cr-Be alloy(Rexillium III ) and gold alloy(Dave 4). All specimens were stored at 37degrees C distilled water for 24 hours and the half of specimens were thermocycled 2000 times at temperature from 5degrees C to 60degrees C. The shear bond strengths of reinforced indirect composite resins to dental alloys were measured by using the universal testing machine, and modes of debonding were observed by stereoscope and scanning electron microscope. The results were as follows : 1. The shear bond strengths of reinforced indirect composit resins to dental alloys were approximately half those of ceramic to dental alloys(P<0.01). 2. There was no significant difference between the shear bond strength of several reinforced indirect composite resins to metal. 3. Alloy type did not affect on the shear bond strengths of resin to metal, but the shear bond strengths of ceramic to gold alloys were higher than those of ceramic to Ni-Cr alloys(P<0.05). 4. The shear bond strenghts of Artglass and Targis to gold alloys were significantly decreased after thermocycling treatment(P<0.01). 5. Sculpture showed cohesive, adhesive, and mixed failure modes, but Artglass and Targis showed adhesive or mixed failures. And ceramic showed cohesive and mixed failures.
Adhesives ; Alloys ; Ceramics ; Composite Resins* ; Dental Alloys* ; Dentistry ; Esthetics ; Gold Alloys ; Sculpture ; Water

PURPOSE: In the orbital floor fracture, sensory impairment due to the damage of the infraorbital nerve is one of the most common symptom and complication. In this report, we have the assumption that tailoring of medpor(R) for decompression may have correlations to the damage and regeneration of the nerve. METHODS: Among patients who had open reduction for pure orbital floor fracture in our hospital from March 2005 to March 2008, we selected 80 cases. In 40 cases, we inserted tailored medpor(R), and in other 40 cases, non-tailored medpor(R) was inserted. Patient's reports were obtained and analyzed, and the pin-prick test and the 2-point discrimination test on the infraorbital nerve regions were done for testing the sensory impairments. RESULTS: The results show that the patients who adopted sculpture of medpor(R) showed higher tendency of recovery of sensory impairments in the patient's subjective report, static touch sensation, static two point discrimination using. And in postoperative 3 months, there are statistically significant recovery of sensory symptoms, signs and the result of sensory tests. CONCLUSION: From these results, tailored medpor(R) in reconstruction of orbital wall fracture may improve recovery of sensory impairments for decreasing of compression of infraorbital nerve.
Decompression ; Discrimination (Psychology) ; Floors and Floorcoverings ; Humans ; Orbit ; Orbital Fractures ; Regeneration ; Sculpture ; Sensation

Varicose vein is one of the ancient diseases, which has its evidence in Greek sculpture. Nowadays varicose vein has become a popular disease because of the media, so that many people want to treat their varicose vein and many medical doctors from a variety of fields seek a varicose clinic, accordingly. Since the introduction of the great saphenous vein stripping, the treatment of varicose vein has not been changed very much for about 100 years. Recently, however, many doctors in the outpatient varicose clinic prefer less invasive treatment and some innovative techniques that have become available recently. Endovascular treatment or transilluminated powered phlebectomy is one of them. Some dermatologists try to treat all kinds of varicose vein with sclerotherapy. But the long-term results of the treatment reveal that the gold standard of the treatment of typical varicose vein is a groin-to-knee inversion stripping of the great saphenous vein with stab avulsion of the varicose cluster. The application of the color Doppler duplex ultrasonogram to the leg vein has made it possible to evaluate the reflux of axial veins and perforator veins more thoroughly and less invasively. Therefore ultrasonography is the method of choice for the diagnosis of varicose vein preoperatively and postoperative follow-up studies for recurrent cases. The recurrence of varicose vein after treatment is mostly from the remnant reflux in the saphenofemoral junction and its tributary. Thus more meticulous treatment of the tributaries of saphenofemoral junction is needed.
Diagnosis ; Follow-Up Studies ; Humans ; Leg* ; Outpatients ; Recurrence ; Saphenous Vein ; Sclerotherapy ; Sculpture ; Ultrasonography ; Varicose Veins* ; Veins

STATEMENT OF PROBLEMS: There are only a few studies available that deal with the clinical behavior of ceromer systems as potential substitutes for metal-ceramic crowns. PURPOSE: This prospective study was initiated to evaluate the clinical performance of 35 Sculpture crowns after 2 years in service. MATERIAL AND METHODS: Thirty five Sculpture crowns were placed for 20 patients (7 men and 13 women). All patients were treated by the same dentist, and all restorations were fabricated by the same dental laboratory. Crown placement involved both the anterior and posterior regions of the dental arches. Patients were evaluated by two examiner at baseline, 12, and 24 months using the CDA quality assessment system in addition to periodontal criteria. RESULTS: Of 34 crowns remaining in the study after 2 years, only one crown had experienced a marginal fracture. The crown was replaced as a result of recurrent caries. All remaining crowns were ranked as either excellent or acceptable for surface and color, anatomic form, and marginal integrity. CONCLUSION: The 2-year clinical observations and ranking with the CDA quality assessment criteria supported the conclusion that Sculpture crowns may be used in substitutes for metal- ceramic crowns.
Ceramics ; Crowns* ; Dental Arch ; Dentists ; Humans ; Laboratories, Dental ; Male ; Prospective Studies ; Sculpture*

BACKGROUND: Bricks have been manufactured in Nepal for hundreds of years and are seen as a component of Nepalese sculpture and architecture. Large quantities of hazardous materials including high concentrations of particulate matter are emitted on a daily basis from brick kilns. Exposure to these hazardous materials can lead to adverse consequences on the environment and human health. This study was conducted to  estimate the prevalence of respiratory symptoms/illnesses and the magnitude of respirable and total dust exposures among Nepalese brick kiln workers. METHODS: Respiratory symptoms/illnesses were evaluated by questionnaire among brickfield workers (n = 400) and a referent group of grocery workers (n = 400) in Kathmandu valley. Work zones (WZs): green brick molding (GBM), green brick stacking/carrying (GBS/C), red brick loading/carrying (RBL/C), coal preparation (CP) and firemen (FM) were the similar exposure groups (SEGs) from where personal air samples and interviews were taken. Among brickfield workers, personal monitoring was conducted across SEGs for total (n = 89) and respirable (n = 72) dust during February–March 2015 and March–April 2016. Applying multi-stage probability proportionate to size sampling technique, 16 kilns and 400 brick workers for interview were selected. Proportions, means, medians and ranges were calculated for the demographics, samples and respiratory symptoms/illnesses. One-way ANOVA was applied to compare the significance differences of the level of particulate matter among SEGs. Bivariate and multivariate logistic regression analysis were performed to evaluate association between respiratory symptoms/illnesses and participants groups, and SEGs among brick kiln workers at 0.05 level. Statistical analyses were performed using IBM SPSS Statistics 21. RESULTS: Chronic cough (14.3%), phlegm (16.6%) and bronchitis (19.0%) were higher (P < 0.05) among brickfield compared with grocery workers (6.8, 5.8 and 10.8%). Mean respirable (5.888 mg/m3) and total (20.657 mg/m3) dust exposures were highest for red brick loading tasks. The prevalence of chronic cough, chronic phlegm, chronic bronchitis, wheezing and asthma were significantly higher for other WZs workers (p < 0.05) compared with CP; for GBM: 22.9, 34.6, 15.0 and 7.5%; for GBS/C: 13.5, 15.8, 10.0, 8.8 and 7.5%; for RBL/C: 11.1, 17.1, 27.4, 19.0 and 11.9%; for FM: 18.4, 12.5, 28.4, 4.9 and 0.0%; and for CP: 4.9, 6.3, 13.3, 9.3 and 4.0% respectively. CONCLUSION: High dust exposures identified in this study may explain the increased prevalence of respiratory symptoms/illnesses among Nepalese brickfield workers, warranting action to reduce exposures.
Asthma ; Bronchitis ; Bronchitis, Chronic ; Coal ; Cough ; Demography ; Dust ; Fungi ; Hazardous Substances ; Humans ; Logistic Models ; Nepal* ; Particulate Matter* ; Prevalence ; Respiratory Sounds ; Sculpture