Browsing by Author "Deniz, K."

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    Evaluation of Benign Paroxysmal Positional Vertigo Following Le Fort I Osteotomy
    (2017) Deniz, K.; Akdeniz, S. S.; Koc, A. O.; Uckan, S.; Ozluoglu, L. N.; 0000-0002-2150-0237; 0000-0002-3798-7326; 27856148; AAI-8020-2021
    The Le Fort I osteotomy is widely used to correct dentofacial deformities. Benign paroxysmal positional vertigo (BPPV) is a common vestibular end organ disorder characterized by short, often recurrent episodes of vertigo. Head trauma is one of the known causes of BPPV. During pterygoid osteotomy, the surgical trauma induced by percussion with the surgical mallet and osteotomes can displace otoliths into the semicircular canal, resulting in BPPV. The aim of this study was to evaluate the potential risk of occurrence of BPPV in individuals undergoing Le Fort I osteotomy. Twenty-three patients were included in this study. The Dix-Hallpike manoeuvre, positional tests using electronystagmography, and vestibular evoked myogenic potential (VEMP) tests were performed 1 week before surgery (TO), 1 week after surgery (T1), and 1 month after surgery (T2). The results were compared statistically. BPPV was observed in three patients. Eleven patients had nystagmus at the T1 evaluation and seven at the T2 evaluation. The difference between the TO and T1 time points was statistically significant (P = 0.001). BPPV is a possible complication of Le Fort I osteotomy. Surgeons should be aware of this complication, and the diagnosis of BPPV should be considered in patients who have undergone Le Fort I osteotomy.
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    Preliminary Data on Clinical Performance of Bulk-fill Restorations in Primary Molars
    (2018) Oter, B.; Deniz, K.; Cehreli, S. B.; 30417848; AAD-6138-2021
    Context: In pediatric clinic practice, bulk fill composite is gaining importance for shortened clinical time with a limited shrinkage. Aims: The present study evaluated the 1 year clinical performance of bulk fill composite and conventional composite material in occlusal caries of primary molars. Settings and Design: The study was designed as randomized single blind clinical trial and a total of 160 restorations were placed in the cavities of the 80 patients. Materials and Methods: Each patient received two restorations: one with Filtek Z250 (3M ESPE, St Paul, MN 55144, USA); the other restored with Filtek Bulk-Fill Restorative (FBF) (3M ESPE, St Paul, MN, USA). All restorations were clinically evaluated after baseline, 6 months, and 1 year in terms of retention, color matching, marginal discoloration, marginal adaptation, secondary caries, surface texture, anatomic form, and postoperative sensitivity. Statistical Analysis Used: Besides the descriptive statistical methods, the Friedman test and the Wilcoxon Signed Ranks were used. Results: Bulk fill was found to be worse compared to control with regard to postoperative sensitivity at baseline without statistical significance (P > 0.05). All of the evaluated restorations were retained and were still in function after 1 year (P > 0.05). With respect to marginal discoloration and marginal integrity, there were no significant differences between bulk fill and composite restorations at all intervals (P > 0.05). Conclusions: Based on this short term data, restoration of Class I cavities with both bulk fill and conventional composite restorations can be performed successfully. Postoperative sensitivity can be an issue with the restorations completed with Bulk fill restorative.