Retrospective evaluation of patients admitted to Karadeniz Technical University Pediatric Dentistry clinic due to trauma

Purpose Traumatic dental injuries are among the commonly observed problems in the primary and permanent teeth. The rate of prevalence of dental trauma varies globally. In this study, we investigated the type of dental trauma, related factors, and treatment procedures in children. Subjects and Methods During a 5-year period (January 2011–January 2016), 416 children aged in the range of 1–15 years were admitted to our clinic with dental trauma. The cause and type of the dental trauma in the primary and permanent teeth and their relation with gender and age were evaluated using the chi-square test, and their distribution by age was evaluated using regression analysis. Results Overall, girls and boys comprised 37% and 63% of the study population, respectively. The mean age was 8.5 years. Falls (61.1%) were the most common cause of traumatic dental injuries, and enamel–dentin fracture (26%) was the most common dental trauma type. Conclusions Traumatic dental injuries in children are common. A large proportion of patients without any clinical symptoms (15.8%) did not seek any treatment after the trauma. Teachers, parents, and children should be informed about the action to be taken when dental trauma occurs and about the importance of immediately taking the child to a dentist after the trauma to ensure an accurate diagnosis, an optimal treatment plan, and positive outcome

Schwannoma of the external auditory canal: a case report

BACKGROUND: Schwannomas are uncommon benign tumors of the external auditory canal. The clinical features, the differential diagnosis, and the surgical treatment of these lesions are discussed. CASE PRESENTATION: A 51-year-old patient presented with a mass obliterating the external auditory meatus. Excisional biopsy was performed. Diagnosis was reported to be schwannoma by histopathologic examination. CONCLUSION: Schwannoma, rarely seen in the external auditory canal, can be managed by a precise excision of the tumor via transmeatal approach

Does the Efferent Auditory System Have a Role in Children with Specific Learning Disabilities?

Objective: This study aimed to compare the baseline transient otoacoustic emission (t-OAE) amplitudes and medial olivo-cochlear (MOC) efferent activity in children with specific learning disability (SLD) and children with normal development.Methods: The study was conducted in two groups. The patient group included 30 children aged 6 to 10 years and diagnosed with SLD, and the control group included 30 children in the same age range without SLD. The patient group included eight males and 22 females, and the control group included 14 females and 16 males. t-OAE and contralateral suppression test were performed in both groups.Results: In the first t-OAE measurements, a statistically significant difference was observed between the patient and the control group at frequencies of 1400, 2000, 2800, and 4000 Hz, but no such difference was observed at 1000 Hz frequency. In the control group, significantly better emission amplitudes were observed. No differences were found at any frequency between the patient and the control groups after suppression. When the subjects in the two groups were compared among themselves, there was a statistically significant difference between the before and after suppression scores in the patient group except at 4000 Hz. Likewise, an important difference was also observed in all frequencies in the control group.Conclusion: This study shows that suppression effects of t-OAE on children diagnosed with SLD and children with no SDL are not significantly different

Comparison of cervical vestibular evoked myogenic potentials between late preterm and term infants

Recent investigations have shown that late preterm infants have increased risk for attention deficit hyperactivity disorder, neurosensory impairment, and emotional, behavior and learning problems. Vestibular evoked myogenic potential (VEMP) abnormality may partly contribute to these problems. Our aim was to measure VEMP in late preterm infants and to compare the findings between late preterm and term infants. Seventeen late preterm infants (mean gestational age: 35.11 weeks +/- 0.78) postnatal aged 8 weeks and 17 full-term (mean gestational age: 38.05 weeks +/- 0.96) infants postnatal aged 4 weeks underwent cervical (c)VEMP test without sedation. Mean latencies of p13 were calculated in all study subjects. cVEMPs were elicited in all late preterm and term infants. Mean latencies of p13 in late preterm and term infants were 14.53 and 13.34 ms, respectively. Mean latencies of n23 were determined as 23.18 ms and 19.92 ms for late preterm and term infants, respectively. There were statistically significant differences between late preterm and term infants for latency of p13 (p < 0.001) and latency of n23 (p < 0.000). Abnormal VEMP results might be related to a delay in the maturation of the sacculocollic pathways in late preterm infants

A rare case of sarcoidosis involving the middle turbinates: an incidental diagnosis

BACKGROUND: Sarcoidosis is a chronic, systemic granulomatous disease of unknown etiology that features noncaseating granulomas in many body regions. Sinonasal involvement is rare but is also suspected to be underreported. CASE PRESENTATION: We present the case of a 39-year-old woman who was incidentally diagnosed with isolated sarcoidosis involving the middle turbinates. Histopathologic examination of resected concha bullosa material and an extensive panel of diagnostic tests revealed a diagnosis of isolated sarcoidosis. Since no systemic manifestations were detected, topical corticosteroid (nasal spray) was administered in the postoperative period. Throughout the 12 months after surgery, the patient remained free of symptoms and all nasal endoscopy examinations were normal. CONCLUSION: Although isolated nasal involvement of sarcoidosis is rare, otorhinolaryngologists should consider this condition in a differential diagnosis for sinonasal complaints

The rheological, mechanical and aging properties of AEM/EPDM rubber blends

Rubbers are used in many applications in industries such as chemistry, automotive, agriculture, and aviation. However, different types of rubbers should be used to meet the end-user expectations in all these areas of use. In recent years, the use of the blending method has obtained both superior properties and low-cost rubbers with the synergistic effect of two different rubbers. Ethylene acrylic rubber (AEM) is resistant to heat, chemicals, and ozone, but it is not well resistant to low aniline oil and polar solvents. In addition, AEMs are much more expensive than most standard elastomers. In this study, the upside-down method was applied to preparing the series of AEM and Ethylene propylene diene monomer (EPDM) rubber blends in a Banbury-type internal mixer. Rubber blends were a mixture of AEM and EPDM rubber in 90/10, 20/80, 30/70, and 60/40 phr rubber ratio variation. In addition, each of the blends was tested to determine rheological and mechanical properties such as tensile strength, elongation at break, hardness and compression set as well as thermal and oil (IRM 901 and IRM 903) aging effects. The 10% addition of EPDM rubber causes an increment in the compression set, the tensile strength, and elongation at break. It was observed that the tensile strength values of A100 and A90E10 samples were larger than 8 MPa and the hardness value did not change after aging in IRM 901 oil. A100 and A90E10 samples show satisfying results to the requirements SAEJ200M3EE708 standard

GRAFİT TOZUNUN KAUÇUK KARIŞIMLARIN ÜZERİNE ETKİLERİNİN İNCELENMESİ

Kauçuk ürünler vulkanizasyonun keşfedilmesiyle beraber günümüzde farklı alanlarda sıkça kullanılmaya başlanmıştır. Bu ürünler beyaz eşya, otomotiv, uçak ve roket sanayi, inşaat ve demir yolu gibi sektörlerde değerli yere sahiptirler. Kauçuk ürünlerin fazla kullanımı kauçuk çeşitliliğinin önemini de arttırmaktadır. Her kauçuk tipinin kendine has özellikleri bulunmaktadır ve kullanım yerlerine göre özel katkı malzemeleri ilaveleriyle bu özellikler daha da geliştirilebilmektedirler. Etilen Propilen Dien Monomer (EPDM) kauçuğu kendine has özelliklerinden dolayı tercih edilen kauçuklar arasındadır ve özel katkı malzemeleri kullanılarak yetersiz yönlerinin geliştirilebilmesi mümkün bir kauçuk türüdür. Bu çalışmanın amacı EPDM kauçuğu kullanılarak oluşturulmuş EPDM karışımına toz grafit katkı malzemesinin ilavesi ile mekanik özelliklerine etkisinin incelenmesidir. Bunun için çalışma kapsamında iki farklı türde kauçuk karışımları oluşturulmuştur. Karışım reçetelerine özel katkı malzemesi olarak toz grafit (EPDM GP) 10 phr oranında eklenmiş, saf karışım reçetesiyle (EPDM 0) reolojik ve mekanik değerleri karşılaştırılmıştır. Kauçuk karışımlarının reolojik değerleri, viskoziteleri, sertlikleri, modül değerleri, kopma mukavemetleri, uzama miktarları, yoğunlukları, külleri, yanma davranışları ve çapraz bağ yoğunlukları analiz edilmiştir. Grafit katkısının kauçuğun mekanik değerlerine olumlu etki ettiği belirlenmiştir. Grafitin karışıma katılmasıyla kauçuk karışımın yanma eğiliminin arttırdığı görülmektedir. Bununla birlikte kauçuk karışıma grafitin eklenmesi çapraz bağ yoğunluklarını (CLD) da arttırmaktadır

The assessment of penetration cognitions and sexual functionality of women with sexual pain disorder in a Turkish sample: a comparative study

Amaç: Bu araştırmanın amacı vajinismuslu, disparonili ve sağlıklı kadınlarda vajinal penetrasyon bilişlerini ve genel cinsel işlevselliği karşılaştırmaktır. Yöntem: Toplam 210 kadın (yaşam boyu vajinismuslu 70 kadın, disparonili 70 kadın ve cinsel aktivitede ağrısı olmayan 70 kadın) bir dizi ölçeği tamamladı. Bütün katılımcılara Yapılandırılmış Bilgi Formu, Golombok-Rust Cinsel Doyum Ölçeği ve Vajinal Penetrasyon Biliş Ölçeği (VPBÖ) uygulandı. Bulgular: Disparoni ve kontrol grubuyla karşılaştırıldığında vajinismuslu kadınlarda penetrasyon sırasında VPBÖ kontrolünü kaybetme biliş puanlarının anlamlı olarak yüksek ve cinsel bilgi düzeylerinin daha düşük olduğu bulunmuştur. Ayrıca, vajinismuslu grubun parmaklarını vajinalarına sokamadığı ve tampon kullanmadığı saptanmıştır. Cinsel yakınması olmayan gruba göre hem vajinismuslu, hem de disparonili kadınlar daha fazla olumsuz benlik bilişleri, felaketleştirme/ağrı bilişleri, cinsel (genital) uyumsuzluk bilişlerine sahiptiler. Ek olarak, vajinismuslu ve disparonili kadınlarda orgazm zorluğu, duyusal-dokunma sorunları ve cinsel işlev bozuklukları kontrol grubuna göre daha fazlaydı. Tartışma: Sonuçlarımız, Türkiye'deki cinsel ağrı bozukluğu olan kadınlarda Batılı toplumlarda yaşayan kadınlarla benzer vajinal penetrasyon bilişleri olduğunu göstermiştir. Ayrıca, bulgularımıza göre vajinismus ve disparonili kadınlar arasında kayda değer farklılıklar bulunduğundan hiç cinsel birleşmede bulunamayan kadınların 'cinsel organlarda-pelviste ağrı/penetrasyon bozukluğu' başlığı altında ayrı bir alt grup olarak tanımlanması yararlı olacaktır.Objective: The aim of this investigation is to compare vaginal penetration cognitions and general sexual functionality in women with vaginismus and dyspareunia and healthy controls. Methods: A sample of 210 women (70 women with lifelong vaginismus, 70 women with dyspareunia and 70 women without painful sexual activity) completed a series of validated questionnaires. All participant received Structured Assessment Questionnaire, Golombok-Rust Sexual Satisfaction Scale, and Vaginal Penetration Cognition Questionnaire (VPCQ). Results: It was found that when compared to dyspareunia and control group, women with vaginismus have higher cognitive scores of loss of control during penetration in VPCQ. Moreover, vaginismus group havelower level of sexual knowledge, cannot penetrate their fingers into their vaginas, and do not use tampons. Both women with vaginismus and dyspareunia were reported to have more level of negative self-cognitions, catastrophe/pain and genital incompatibilitycognitions than those women with no sexual complaints. Moreover, women with vaginismus and women with dyspareunia have more anorgasmia, non-sensuality and sexual dysfunctions than the control group. Conclusion: Our results revealed that Turkish women with sexual pain disorder have similar vaginal penetration cognitions with women living in Western societies. In addition, according to our resultsit will be beneficial to define another sub group consisting of women who have never experienced sexual intercourse under the title of genito-pelvic pain/ penetration disorder because there are noteworthy differences between vaginismus and dyspareunia