Purpose: To investigate colour agreement between different shades of Panavia V5 resin cement and their try-in pastes under zirconia-reinforced lithium silicate ceramics. Methods: Forty-four zirconia-reinforced lithium silicate ceramic specimens were prepared at 0.8 AE 0.01 mm thickness. Composite resin tooth-shaded background specimens were obtained in two shades. Resin cement specimens were fabricated at 0.1-mm thickness. Colour difference values (ΔE) between Aquagel and both the try-in paste and resin cement were calculated using the CIE-Lab system. The CIEDE2000 (ΔE00) colour formula was used to determine colour differences. The three-way ANOVA test and a multiple comparisons test were used for statistical analysis (α = 0.05). Results: A statistically significant difference was found between the ΔE00 values obtained from the cement shade colour measurements for all specimens (P < 0.05). According to the three-way ANOVA test, lower ΔE00 values were observed in the try-in paste group compared to the resin cement group. The ΔE00 values were significantly affected by the cement shade and tooth-shaded background (P < 0.05). Conclusions: The colour agreement between the try-in pastes and the corresponding resin cement differed, and the try-in pastes could not mask the dark dental background as much as the corresponding resin cement.

Summary Background/Aim: The aim of this study was to investigate in the esthetic perceptions of 2nd grade dental students before and after training. Material and Methods: A total of 16 photographs which contain golden ratio, buccal corridor, midline deviation, incisal embrasure, lip line, midline diastema, dark triangles and smile arc were shown to 78 dental students (33 male, 45 female). Immediately after the training about the smile esthetics, the same photos were shown again. The effect of gender on esthetic perception was also examined, in addition to assessing the effects of education on esthetic perception. Pearson Chi-square, Fisher’s Exact test and McNemar test were used in the analysis of the results. Results: According to the results of the analysis, it was found that the answers of the smile arc before and after the education were statistically significant (p< 0.05). Accordingly, the rate of correct answers of women is statistically higher than that of men. A statistically significant difference was found between the responses to the gingival appearance in the smile before and after the education (p< 0.05). Conclusions: Based on the limited results of this study, professional dental education may affect the esthetic evaluation of smile. There were differences in the esthetic perception of women and men.

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Objective: This retrospective clinical study aimed to investigate the long-term clinical success of dental implants restored with splinted or non-splinted posterior prostheses with different retention systems. Materials and Methods: Fifty patients who had undergone dental implant surgery and prosthesis treatment and had a follow-up period of at least 2 years were included in this study. Marginal bone loss was measured from the surrounding bone levels on the mesial and distal surfaces of the implants using a millimetre ruler on panoramic radiographs. The plaque index (PI), gingival index (GI) and bleeding on probing (BOP) were also measured. The Mann-Whitney U test and ANOVA test were used for statistical analysis. Results: The mean values of mesial and distal bone loss were 0.72±0.81 and 0.62±0.58, respectively. The correlation coefficient between mesial and distal bone loss was 0.431; thus, a significant difference was found (p<0.05). A significant relationship was found between the GI (p=0.004) and PI (p=0.000) of dental implants with different retention types. No significant relationship was observed between BOP and retention type (p>0.05). Conclusion:Clinically, given the long-term maintenance of soft and hard tissue health, successful results can be achieved with a two-member fixed prosthetic rehabilitation plan on two implants. Amaç: Bu retrospektif klinik çalışma, posterior bölgedeki farklı retansiyon sistemlerine sahip splintli veya tek başına planlanan protetik tedavinin dental implantların uzun vadeli klinik başarısına etkisini değerlendirmektedir. Gereç ve Yöntemler: Çalışmaya, dental implant cerrahisi ve sonrasında protetik tedavi uygulanan ve en az iki yıllık takip süresi olan 50 hasta dahil edildi. Marjinal kemik kaybı, panoramik radyografiler üzerinde milimetrik bir cetvel kullanılarak implantların mezial ve distal yüzeylerini çevreleyen kemik seviyeleri göz önüne

ÖZAmaç: Bu araştırma bir eğitim ve araştırma hastanesinde çalışan hemşirelerin kullandıkları mizah tarzlarının belirlenmesi ve çalıştıkları bölüme göre mizah tarzlarının değişip değişmediğinin incelenmesi amacı ile yapılmıştır.Yöntem: Tanımlayıcı nitelikteki bu araştırma Ankara'da bir eğitim ve araştırma hastanesinde Ocak-Nisan 2014 tarihlerinde yürütülmüştür. Araştırmaya 259 hemşire dahil edilmiştir. Veriler "Tanımlayıcı Form" ve "Mizah Tarzları Ölçeği (MTÖ)" ile toplanmıştır. Tanımlayıcı istatistikler; sayımla belirlenen değişkenler için sayı ve %, ölçümle belirlenen değişkenler için ortalama±standart sapma şeklinde gösterilmiştir. Karşılaştırmalı istatistiklerde, "t testi" ve "tek yönlü varyans analizi (ANO-VA)" testleri kullanılmıştır.Bulgular: Hemşirelerin MTÖ'den aldıkları puanlara göre, uyumluolumlu mizah tarzı puanları uyumsuz-olumsuz mizah tarzı puanlarından istatistiksel olarak anlamlı derecede daha yüksektir. Hemşirelerin en çok kullandıkları mizah tarzı "katılımcı mizah" ve en az kullandıkları mizah tarzı ise "saldırgan mizah"dır. Hemşirelerin kullandıkları mizah tarzları çalışma alanlarına göre anlamlı farklılık göstermemektedir. Sonuç:Hemşirelerin kullandıkları mizah tarzlarının çalıştıkları bölümlere göre istatistiksel olarak farklılık göstermediği görülmüştür. Ileriki araştırmalarda hemşirelerin kullandıkları mizah tarzlarının çalıştıkları bölüme göre değişip değişmediğinin belirlenmesi için hemşirelerin çalıştıkları bölüme ilk başladıkları zaman ve belirli bir süre sonra tekrar mizah tarzlarının değerlendirilmesi önerilmektedir. Ayrıca hemşirelerin çalıştıkları bölümlere göre, çalışma ortamında mizahı nasıl kullandıkları ve mizah kullanımından nasıl etkilendiklerinin değerlendirileceği yeni araştırmaların yapılması önerilmektedir. Anahtar kelimeler: Mizah; hemşirelik; hastane klinikleri. ABSTRACT Aim: To determine the humor styles of nurses who work in a training and research hospital and whether the humor styles of nurses change according to their department.Methods: This descriptive study was conducted in a training and research hospital in Ankara between January and April 2014. The study sample comprised 259 nurses. The data were collected using "nurse information form" and "The Humor Styles Questionnaire (HSQ)". SPSS for Win. Ver. 15.00 (SPSS Inc. Chicago, IL, USA) was used for data analysis. The descriptive statistics were shown as n, %, mean± standard deviation. One-way ANOVA, paired sample t test, and independent t test were conducted to evaluate the data.Results: According to the HSQ score of nurses, the mean score of compatible-positive humor style subscale was statistically higher than the incompatible-negative humor style score. The most humorous style used by the nurse was "participatory humor style" and the least used was "aggressive humor style". There were no significant differences between the nurses' humor styles and work area. Conclusion:It was found that there were no differences in the styles of humor used by nurses according to their departments. To find more precise results ...