2021-01-28T00:00:00Z, Soysal, PINAR, Tan, Semen Gokce, SOYSAL, PINAR

2022-03-21T00:00:00Z, Smith, Lee, Shin, Jae Il, Butler, Laurie, Barnett, Yvonne, Oh, Hans, Jacob, Louis, Kostev, Karel, Veronese, Nicola, Soysal, PINAR, Tully, Mark, López Sánchez, Guillermo F, Koyanagi, Ai, SOYSAL, PINAR

2020-12-01T00:00:00Z, DÖNMEZ, NAZMİYE, SARIALİOĞLU GÜNGÖR, AYÇA, SARIALİOĞLU GÜNGÖR, AYÇA, DÖNMEZ, NAZMİYE

The overall consumption of acidic beverages has become more common, making the prevention and treatment of dental erosion an important consideration. The aim of this in vitro study was to evaluate the effect of various plant extracts in preventing dentin erosion. Seven experimental groups (fluoride-free water, fluoride-containing mouthwash [Colgate Plax], green tea, rosehip, clove, pomegranate, and grape seed) were formed, each consisting of 20 bovine dentin samples. The specimens were exposed daily to demineralization and remineralization cycles three times per day over 5 days through a 5-min plant extract application before each erosive episode. Surface roughness, nanohardness values, and morphological changes on dentin surfaces were examined using atomic force microscopy (AFM), nanoindentation, and scanning electron microscopy (SEM). The data were subjected to Kruskal-Wallis and Friedman tests (p .05). Macromolecular deposits were observed both in the SEM and AFM images of the pomegranate, Colgate, and rosehip groups. It can be concluded that the clove extract group is more successful in preventing dentin erosion than the other groups. Green tea is also effective in preventing dentin erosion, similar to clove extract.

2022-04-21T00:00:00Z, Smith, Lee, Shin, Jae Il, Carmichael, Christina, Jacob, Louis, Kostev, Karel, Grabovac, Igor, Barnett, Yvonne, Butler, Laurie, Lindsay, Rosie K, Pizzol, Damiano, Veronese, Nicola, Soysal, PINAR, Koyanagi, Ai, SOYSAL, PINAR

2021-06-25T00:00:00Z, Okudur, Saadet Koc, Soysal, PINAR, SOYSAL, PINAR

2021-08-27T00:00:00Z, Heybeli, Cihan, Soysal, PINAR, Oktan, Mehmet Asi, Smith, Lee, Çelik, Ali, SOYSAL, PINAR, KAZANCIOĞLU, RÜMEYZA

2020-09-01T00:00:00Z, Abdallah, Anas

Objective:Myxopapillary ependymomas (MPEs) in children are rarely reported low-grade glial tumors; however, MPEs sometimes possess malignant characteristics such as spinal seeding/drop metastasis (SSM). We aimed to present 3 pediatric MPE cases that experienced SSM at 2 neurosurgical centers.Materials and Methods:We retrospectively reviewed the medical records of 38 primary spinal MPE cases who underwent surgery at 2 neurosurgical centers spanning 16 years, from 2004 to 2019. All pediatric cases (patient age <18 years) who were diagnosed with MPE and re-presented with SSM were selected as the core sample for this study. Relevant literature was briefly reviewed.Results:Three pediatric MPE cases (2 females and 1 male) experienced SSM. The mean age at first presentation was 12.0 +/- 1.0 years. The mean preoperative course was 2.9 +/- 1.2 months. The predominant location was the lumbar spine in 2 tumors (both originated from terminal filum [TF]). Two tumors were located intradural intramedullary. Gross-total resection was achieved in 2 patients. No patient had neurofibromatosis type 2. No adjuvant treatment was given after the first surgery. The mean period between the first diagnosis and diagnosis of SSM was 44.0 +/- 31.5 months. The location of SSM in all patients was the sacral spine (1 patient experienced distant metastasis in her brain besides her sacral metastasis). The mean follow-up was 68.3 +/- 53.7 months.Conclusions:We found a statistically significant relationship between SSM in pediatric MPEs and the intramedullary location, TF origin, and number of affected segments. Close clinical and radiological follow-up is essential for pediatric MPE patients.

2020-10-01T00:00:00Z, SOYSAL, PINAR, Smith, Lee, SOYSAL, PINAR

2021-10-01T00:00:00Z, Akkemik, Ünal, Genç, Sena, Yılmaz, Osman Yalçın, Selvi, Erşan, Yılmaz, Hatice, Sevgi, Ece, Sevgi, Orhan, Akarsu, Ferdi, SEVGİ, ECE

2022-05-16T00:00:00Z, Soysal, PINAR, Koc Okudur, Saadet, Kilic, Nazli, Ipar, Ozlem, Smith, Lee, SOYSAL, PINAR