Elif Coşkun - Academia.edu (original) (raw)

Papers by Elif Coşkun

The European journal of prosthodontics and restorative dentistry, 2019

OBJECTIVE To evaluate the clinical performance and the marginal adaptation of inlay/ onlay restor... more OBJECTIVE To evaluate the clinical performance and the marginal adaptation of inlay/ onlay restorations made of lithium of a new lithium disilicate strengthened, lithium alumino-silicate glass-ceramic (LAS) material compared with a conventional lithium-disilicate glass-ceramic (LDS) and new-generation polymer-based CAD/CAM resin composite (CS) materials over one year. MATERIALS AND METHODS Seventy-five inlay-onlay restorations were placed in 35 patients. The restorations were assigned and randomized to three groups as LDS, LAS, and CS. Clinical evaluations were performed after one week, six months, and one year after the cementation, according to the modified United States Public Health Services (USPHS) criteria. The marginal quality analyses of 21 samples (n=7) were assessed under a scanning electron microscope. The data were analyzed by using Friedman, Wilcoxon Signed Ranks, Chi-square and Paired t-tests (p⟨0.05). RESULTS No statistically significant difference (p⟩0.05) was found ...

Journal of Esthetic and Restorative Dentistry, 2019

ObjectiveTo evaluate the clinical performance of hybrid ceramic inlay‐onlay restorations over a 2... more ObjectiveTo evaluate the clinical performance of hybrid ceramic inlay‐onlay restorations over a 2‐year period.Clinical ConsiderationsA total of 30 lithium disilicate glass ceramic (LDC; control group) and 30 hybrid ceramic (HC; test group) inlay/onlay restorations were performed in 14 patients. Clinical evaluations were performed after 1 week, 6 months, 1 year, and 2 years of cementation according to the modified United States Public Health Service (USPHS) criteria, gingival index, and plaque index. The Friedman test was used for the significant difference in time and Wilcoxon signed‐rank test was used for the determination of differences. The clinical parameters, gingival and plaque indexes differences in time were analyzed with Chi‐square test. No statistically significant difference (P > .05) was found between the two groups in the modified USPHS, gingival index, and plaque index evaluations, whether statistically significant differences were found within groups. The total sur...

Clinical Oral Implants Research, 2019

Background : Development with CAD-CAM technology and producing new material, ceramic inlay or onl... more Background : Development with CAD-CAM technology and producing new material, ceramic inlay or onlay restorations are widely used to treat posterior tooth decay. Recently a new material based on lithium disilicate strengthened lithium aluminosilicate glass-ceramic (LAS) recently has been introduced. These fully crystallized milling blocks are specially designed for milling crowns (including hybrid abutment crowns), partial crowns, inlays, onlays, and veneers. Aim/Hypothesis : To evaluate the clinical performance and the marginal adaptation of new lithium disilicate strengthened lithium aluminosilicate glass-ceramic (LAS) CAD CAM inlay-onlay restorations compare to a lithium-disilicate glass-ceramic (LDS) and hybrid ceramic (CS) restorations for three years. Material and Methods : A total of 75 inlay-onlay restorations were placed in 35 patients including 75 inlay-onlay restorations (25 each group as LDS; PS e.max® CAD, Ivoclar Vivadent, LAS; n!ce® Blocks, Institut Straumann AG and CS; Cerasmart, GC). The restorations were assigned randomized to three groups according to the materials used. Clinical evaluations were performed after one week, six months, one year, two years and three years after cementation process according to the modified United States Public Health Services (USPHS) criteria. The marginal quality analysis of 21 (7 each group) samples was assessed under scanning electron microscopy (SEM) regarding morphological changes. The data were analyzed by using Friedman, Wilcoxon Signed Ranks, Chi-square, Independent samples and Paired t-tests (P < 0.05). Results : There was no statistically significant differences between all groups for marginal integrity, marginal discoloration, surface texture, and secondary caries after three years. Only one restoration showed the fracture in the LDS group. The survival rates of LAS and CS restorations were 100%, and LDS restorations were 96.3%. In SEM evaluations in all group, continuous margin percentages in both ceramic-cement and enamel-cement interfaces decreased, but these results were not statistically significant (P > 0.05). Conclusion and Clinical Implications : Based on the 3-year clinically data, all-ceramic systems used in this study can be considered reliable treatment options for posterior inlay onlay restorations. According to the results of this study, lithium disilicate strengthened lithium aluminosilicate glass-ceramic CAD CAM blocks should be a good alternative for indirect CAD-CAM posterior restorations. This material can be ground, polished and fitted without the need for additional crystallization firing, saving substantial time and effort

Clinical and Experimental Health Sciences, 2017

Amaç: Tam protez kullanımı sonucu damak bölgesinde eritema olan hastaların tedavisinde rutin olar... more Amaç: Tam protez kullanımı sonucu damak bölgesinde eritema olan hastaların tedavisinde rutin olarak kullanılan klorheksidin glukonat ağız gargarasının ve doku düzenleyicilerin etkisini retrospektif olarak değerlendirmektir. Yöntemler: Kliniğimize başvuran tam protez kullanan ve palatal bölgesinde eritem bulunan hastaların klinik tedavisi süresince palatinal orta hattından alınan fotoğraflar incelendi ve Butz Jorgensen Indeksine göre değerlendiridi. Hastalar 3 gruba ayrıldı (n=8). Birinci gruba doku düzenleyici, ikinci gruba sadece % 0,2'lik klorheksidin glukonat ağız gargarası verildi üçüncü gruba her iki yöntem birlikte uygulandı. Tüm gruplar için değerlendirme süresi iki hafta olarak belirlendi. Hastaların palatal orta hat bölgesinden başlangıç, tedaviden 1. hafta ve 2. hafta sonrasında ağız içi fotoğraflar çekildi. Niteliksel verilerin karşılaştırılmasında Ki-Kare testi, parametrelerin grup içi karşılaştırmalarında ise Wilcoxon işaret testi kullanıldı. Anlamlılık p<0,05 düzeyinde değerlendirildi. Bulgular: Başlangıçta tüm grupların enflamasyon seviyeleri arasında istatistiksel olarak anlamlı bir farklılık bulunmadı. Tüm enflamasyon seviyeleri ciddi olarak skorlandı (p>0,05).Doku düzenleyici ve %0,2'lik klorheksidin glukonat ağız gargarasının birlikte kullanımının palatal enflamasyonun azalmasında etkili olduğu görüldü. Sonuç: Tam protez kullanımı sonucu meydana gelen palatal enflamasyon tedavisinde 2 haftalık doku düzenleyici ve %0,2'lik klorheksidin glukonat ağız gargarasının kullanımı etkilidir.

The European journal of prosthodontics and restorative dentistry, 2019

OBJECTIVE To evaluate the clinical performance and the marginal adaptation of inlay/ onlay restor... more OBJECTIVE To evaluate the clinical performance and the marginal adaptation of inlay/ onlay restorations made of lithium of a new lithium disilicate strengthened, lithium alumino-silicate glass-ceramic (LAS) material compared with a conventional lithium-disilicate glass-ceramic (LDS) and new-generation polymer-based CAD/CAM resin composite (CS) materials over one year. MATERIALS AND METHODS Seventy-five inlay-onlay restorations were placed in 35 patients. The restorations were assigned and randomized to three groups as LDS, LAS, and CS. Clinical evaluations were performed after one week, six months, and one year after the cementation, according to the modified United States Public Health Services (USPHS) criteria. The marginal quality analyses of 21 samples (n=7) were assessed under a scanning electron microscope. The data were analyzed by using Friedman, Wilcoxon Signed Ranks, Chi-square and Paired t-tests (p⟨0.05). RESULTS No statistically significant difference (p⟩0.05) was found ...

Journal of Esthetic and Restorative Dentistry, 2019

ObjectiveTo evaluate the clinical performance of hybrid ceramic inlay‐onlay restorations over a 2... more ObjectiveTo evaluate the clinical performance of hybrid ceramic inlay‐onlay restorations over a 2‐year period.Clinical ConsiderationsA total of 30 lithium disilicate glass ceramic (LDC; control group) and 30 hybrid ceramic (HC; test group) inlay/onlay restorations were performed in 14 patients. Clinical evaluations were performed after 1 week, 6 months, 1 year, and 2 years of cementation according to the modified United States Public Health Service (USPHS) criteria, gingival index, and plaque index. The Friedman test was used for the significant difference in time and Wilcoxon signed‐rank test was used for the determination of differences. The clinical parameters, gingival and plaque indexes differences in time were analyzed with Chi‐square test. No statistically significant difference (P > .05) was found between the two groups in the modified USPHS, gingival index, and plaque index evaluations, whether statistically significant differences were found within groups. The total sur...

Clinical Oral Implants Research, 2019

Background : Development with CAD-CAM technology and producing new material, ceramic inlay or onl... more Background : Development with CAD-CAM technology and producing new material, ceramic inlay or onlay restorations are widely used to treat posterior tooth decay. Recently a new material based on lithium disilicate strengthened lithium aluminosilicate glass-ceramic (LAS) recently has been introduced. These fully crystallized milling blocks are specially designed for milling crowns (including hybrid abutment crowns), partial crowns, inlays, onlays, and veneers. Aim/Hypothesis : To evaluate the clinical performance and the marginal adaptation of new lithium disilicate strengthened lithium aluminosilicate glass-ceramic (LAS) CAD CAM inlay-onlay restorations compare to a lithium-disilicate glass-ceramic (LDS) and hybrid ceramic (CS) restorations for three years. Material and Methods : A total of 75 inlay-onlay restorations were placed in 35 patients including 75 inlay-onlay restorations (25 each group as LDS; PS e.max® CAD, Ivoclar Vivadent, LAS; n!ce® Blocks, Institut Straumann AG and CS; Cerasmart, GC). The restorations were assigned randomized to three groups according to the materials used. Clinical evaluations were performed after one week, six months, one year, two years and three years after cementation process according to the modified United States Public Health Services (USPHS) criteria. The marginal quality analysis of 21 (7 each group) samples was assessed under scanning electron microscopy (SEM) regarding morphological changes. The data were analyzed by using Friedman, Wilcoxon Signed Ranks, Chi-square, Independent samples and Paired t-tests (P < 0.05). Results : There was no statistically significant differences between all groups for marginal integrity, marginal discoloration, surface texture, and secondary caries after three years. Only one restoration showed the fracture in the LDS group. The survival rates of LAS and CS restorations were 100%, and LDS restorations were 96.3%. In SEM evaluations in all group, continuous margin percentages in both ceramic-cement and enamel-cement interfaces decreased, but these results were not statistically significant (P > 0.05). Conclusion and Clinical Implications : Based on the 3-year clinically data, all-ceramic systems used in this study can be considered reliable treatment options for posterior inlay onlay restorations. According to the results of this study, lithium disilicate strengthened lithium aluminosilicate glass-ceramic CAD CAM blocks should be a good alternative for indirect CAD-CAM posterior restorations. This material can be ground, polished and fitted without the need for additional crystallization firing, saving substantial time and effort

Clinical and Experimental Health Sciences, 2017

Amaç: Tam protez kullanımı sonucu damak bölgesinde eritema olan hastaların tedavisinde rutin olar... more Amaç: Tam protez kullanımı sonucu damak bölgesinde eritema olan hastaların tedavisinde rutin olarak kullanılan klorheksidin glukonat ağız gargarasının ve doku düzenleyicilerin etkisini retrospektif olarak değerlendirmektir. Yöntemler: Kliniğimize başvuran tam protez kullanan ve palatal bölgesinde eritem bulunan hastaların klinik tedavisi süresince palatinal orta hattından alınan fotoğraflar incelendi ve Butz Jorgensen Indeksine göre değerlendiridi. Hastalar 3 gruba ayrıldı (n=8). Birinci gruba doku düzenleyici, ikinci gruba sadece % 0,2'lik klorheksidin glukonat ağız gargarası verildi üçüncü gruba her iki yöntem birlikte uygulandı. Tüm gruplar için değerlendirme süresi iki hafta olarak belirlendi. Hastaların palatal orta hat bölgesinden başlangıç, tedaviden 1. hafta ve 2. hafta sonrasında ağız içi fotoğraflar çekildi. Niteliksel verilerin karşılaştırılmasında Ki-Kare testi, parametrelerin grup içi karşılaştırmalarında ise Wilcoxon işaret testi kullanıldı. Anlamlılık p<0,05 düzeyinde değerlendirildi. Bulgular: Başlangıçta tüm grupların enflamasyon seviyeleri arasında istatistiksel olarak anlamlı bir farklılık bulunmadı. Tüm enflamasyon seviyeleri ciddi olarak skorlandı (p>0,05).Doku düzenleyici ve %0,2'lik klorheksidin glukonat ağız gargarasının birlikte kullanımının palatal enflamasyonun azalmasında etkili olduğu görüldü. Sonuç: Tam protez kullanımı sonucu meydana gelen palatal enflamasyon tedavisinde 2 haftalık doku düzenleyici ve %0,2'lik klorheksidin glukonat ağız gargarasının kullanımı etkilidir.