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Sarı M, Yılmaz K. The Effect of Different Obturation Techniques Using Different Root Canal Sealers on the Residual Filling Material After Retreatment Procedures. Niger J Clin Pract 2024; 27:174-179. [PMID: 38409144 DOI: 10.4103/njcp.njcp_33_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 01/08/2024] [Indexed: 02/28/2024]
Abstract
BACKGROUND This study aimed to compare the effect of different obturation techniques with root canal sealers on the residual filling material after retreatment using SEM. MATERIAL AND METHOD Sixty (60) single rooted mandibular premolars were selected and instrumented with rotary files using the Mtwo system up to file size 30/.05 taper. The samples were randomly divided to two groups based on the type of sealer and three sub-groups (n=10) based on the obturating technique used. The root fillings were removed using the PTUR system files and the specimens were longitudinally sectioned while digital images were obtained from the root canals with SEM. The time required to reach working lenght were recorded. RESULTS There was no difference in terms of the smear score when comparing both sealer and obturation technique groups in the apical third. Smear scores were significantly affected by the type of sealer and obturation technique in the medium and coronal thirds of root canals (p<0.05). Higher smear scores were obtained with GFB than AH Plus (p<0.05). The time required to reach working length with GFB was longer than AH Plus (p<0.05). CONCLUSION Residual filling material was observed in all samples, regardless of the root canal sealer or the obturation technique used. There was a significantly lower smear scores in the AH Plus groups as compared to the GFB.
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Affiliation(s)
- M Sarı
- Department of Endodontics, Faculty of Dentistry, Hatay Mustafa Kemal University, Hatay, Turkey
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Işıkay S, Yılmaz K. Oxcarbazepine May Be Useful in Sydenham Chorea. Turk Arch Pediatr 2022; 56:648-649. [PMID: 35110067 PMCID: PMC8849629 DOI: 10.5152/turkarchpediatr.2021.21179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Sedat Işıkay
- Division of Pediatric Neurology, Department of Pediatrics, Gaziantep University School of Medicine, Gaziantep, Turkey
| | - Kutluhan Yılmaz
- Division of Pediatric Neurology, Department of Pediatrics, Ordu University School of Medicine, Ordu, Turkey
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Yılmaz K, Işıkay S. Eating-induced electroclinical and electrographical seizures in a child. Acta Neurol Belg 2021; 122:1607-1609. [PMID: 33683635 DOI: 10.1007/s13760-021-01642-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 02/26/2021] [Indexed: 11/24/2022]
Affiliation(s)
- Kutluhan Yılmaz
- Division of Pediatric Neurology, Department of Pediatrics, Faculty of Medicine, Ordu University, Altınordu, Ordu, Turkey
| | - Sedat Işıkay
- Division of Pediatric Neurology, Department of Pediatrics, Faculty of Medicine, Gaziantep University, Şahinbey, Gaziantep, Turkey.
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Özyürek T, Uslu G, Gündoğar M, Yılmaz K, Grande NM, Plotino G. Comparison of cyclic fatigue resistance and bending properties of two reciprocating nickel-titanium glide path files. Int Endod J 2018; 51:1047-1052. [DOI: 10.1111/iej.12911] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 02/19/2018] [Indexed: 11/30/2022]
Affiliation(s)
- T. Özyürek
- Department of Endodontics; Faculty of Dentistry; Ondokuz Mayıs University; Samsun Turkey
| | - G. Uslu
- Private Practice, Dental Clinic; Çanakkale Turkey
| | - M. Gündoğar
- Department of Endodontics; Faculty of Dentistry; Medipol University; İstanbul Turkey
| | - K. Yılmaz
- Çorum Oral and Dental Health Centre; Çorum Turkey
| | - N. M. Grande
- Department of Endodontics; Catholic University of Sacred Heart; Rome Italy
| | - G. Plotino
- Private Practice, Grande Plotino & Torsello - Studio di Odontoiatria; Rome Italy
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Yılmaz K, Uslu G, Gündoğar M, Özyürek T, Grande NM, Plotino G. Cyclic fatigue resistances of several nickel-titanium glide path rotary and reciprocating instruments at body temperature. Int Endod J 2018; 51:924-930. [DOI: 10.1111/iej.12901] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 01/25/2018] [Indexed: 11/28/2022]
Affiliation(s)
- K. Yılmaz
- Çorum Oral and Dental Centre; Çorum Turkey
| | - G. Uslu
- Private Practice; Dental Clinic; Çanakkale Turkey
| | - M. Gündoğar
- Department of Endodontics; Faculty of Dentistry; Medipol University; İstanbul Turkey
| | - T. Özyürek
- Department of Endodontics; Faculty of Dentistry; Ondokuz Mayıs University; Samsun Turkey
| | - N. M. Grande
- Department of Endodontics; Catholic University of Sacred Heart; Rome Italy
| | - G. Plotino
- Grande Plotino & Torsello - Dental Clinic; Rome Italy
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Yılmaz K, Uslu G, Özyürek T. Effect of multiple autoclave cycles on the surface roughness of HyFlex CM and HyFlex EDM files: an atomic force microscopy study. Clin Oral Investig 2018; 22:2975-2980. [PMID: 29442187 DOI: 10.1007/s00784-018-2382-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 02/06/2018] [Indexed: 11/28/2022]
Abstract
AIM To compare the effect of autoclave cycles on the surface topography and roughness of HyFlex CM and HyFlex EDM instruments using atomic force microscopy (AFM) analysis. METHODOLOGY Eight new files of each brand were subdivided into four subgroups (n = 2/each subgroup). One group was allocated as the control group and not subjected to autoclave sterilization. The other three groups were subjected to different numbers (1, 5, and 10) of autoclave sterilization cycles. After the cycle instruments were subjected to AFM analysis. Roughness average (Ra) and the root mean square (RMS) values were chosen to investigate the surface features of endodontic files. The data was analyzed using one-way ANOVA and post hoc Tamhane tests at 5% significant level. RESULTS The lowest Ra and RMS values were observed in the HyFlex EDM files that served as the control and in those subjected to a single cycle of autoclave sterilization (P < 0.05). The highest Ra and RMS values were observed in the HyFlex CM and HyFlex EDM files that were subjected to 10 cycles of autoclave sterilization (P < 0.05). The surface roughness values of the HyFlex CM group showed a significant increase after ten autoclave cycles, whereas those of the HyFlex EDM group exhibited a significant change after five autoclave cycles (P < 0.05). CONCLUSIONS Although the initial surface roughness values of the HyFlex EDM files were lower than those of the HyFlex CM files, the surface roughness values of the EDM files showed a statistically significant increase after 5 cycles of autoclave sterilization. In contrast, the surface roughness values of the HyFlex CM files did not increase until 10 cycles of autoclave sterilization. CLINICAL RELEVANCE Present study indicated that autoclave sterilization negatively affected the surface roughness of the tested NiTi files.
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Affiliation(s)
- K Yılmaz
- Çorum Oral and Dental Centre, Çorum, Turkey
| | - G Uslu
- Special Dental Clinic, Çanakkale, Turkey.
| | - T Özyürek
- Department of Endodontics, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkey
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Uslu G, Özyürek T, Yılmaz K, Gündoğar M. Cyclic fatigue resistance of R-Pilot, HyFlex EDM and PathFile nickel-titanium glide path files in artificial canals with double (S-shaped) curvature. Int Endod J 2017; 51:584-589. [PMID: 28856692 DOI: 10.1111/iej.12846] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 08/23/2017] [Indexed: 11/30/2022]
Abstract
AIM To examine the cyclic fatigue resistances of R-Pilot, HyFlex EDM and PathFile NiTi glide path files in S-shaped artificial canals. METHODOLOGY Twenty R-Pilot (12.5/.04), 20 HyFlex EDM (10/.05) and 20 PathFile (19/.02) single-file glide path files were included. Sixty files (n: 20/each) were subjected to static cyclic fatigue testing using double-curved canals until fracture occurred (TF). The number of cycles to fracture (NCF) was calculated by multiplying the rpm value by the TF. The length of the fractured fragment (FL) was determined by a digital microcaliper. Six samples of fractured files (n: 2/each) were examined by SEM to determine the fracture mode. The NCF and the FL data were analysed using one-way anova, post hoc Tamhane and Kruskal-Wallis tests using SPPS 21 software. The significance level was set at 5%. RESULTS In the double-curved canal, all the files fractured first in the apical curvature and then in the coronal curvature. The NCF values revealed that the R-Pilot had the greatest cyclic fatigue resistance, followed by the HyFlex EDM and PathFile in both the apical and coronal curvatures (P < 0.05). CONCLUSIONS R-Pilot NiTi glide path files, used in a reciprocating motion, had the greatest cyclic fatigue resistance amongst the tested NiTi glide path files in an artificial S-shaped canal.
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Affiliation(s)
- G Uslu
- Department of Endodontics, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkey
| | - T Özyürek
- Department of Endodontics, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkey
| | - K Yılmaz
- Çorum Oral and Dental Health Centre, Çorum, Turkey
| | - M Gündoğar
- Department of Endodontics, Faculty of Dentistry, Medipol University, İstanbul, Turkey
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Ünver O, Hacıfazlıoğlu NE, Karatoprak E, Güneş AS, Sağer G, Kutlubay B, Sözen G, Saltık S, Yılmaz K, Kara B, Türkdoğan D. The frequency of late-onset Pompe disease in pediatric patients with limb-girdle muscle weakness and nonspecific hyperCKemia: A multicenter study. Neuromuscul Disord 2016; 26:796-800. [DOI: 10.1016/j.nmd.2016.09.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 07/31/2016] [Accepted: 09/01/2016] [Indexed: 11/15/2022]
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Işıkay S, Yılmaz K, Yiğiter R, Balat A, Büyükçelik M. Colchicine treatment in children with familial Mediterranean fever: is it a risk factor for neuromyopathy? Pediatr Neurol 2013; 49:417-9. [PMID: 24084143 DOI: 10.1016/j.pediatrneurol.2013.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 07/09/2013] [Accepted: 07/13/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND We cared for a 17-year-old adolescent with familial Mediterranean fever under colchicine treatment. Because of the increased creatinine kinase level (3937 U/L) observed in this individual, we planned to assess all pediatric patients with familial Mediterranean fever under colchicine treatment to detect any resultant neuromyopathy. METHODS The study included 88 children with familial Mediterranean fever who were receiving colchicine. The patient with myopathy was not included in the study. Serum creatinine kinase levels were measured and nerve conduction studies were carried out in all patients. RESULTS The study included 88 patients (47 female, 53.4%) with an average age of 10.1 ± 3.35 years. The average period of colchicine use was 28.25 ± 17.66 months. Side effects of colchicine were detected in 10 patients (11%)--as diarrhea in eight patients, leukopenia in one patient, and hair loss in one patient. Nerve conduction studies determined incidental carpal tunnel syndrome in only one patient. CONCLUSIONS Our study did not suggest an elevated risk of neuromyopathy associated with the use of colchicine for familial Mediterranean fever.
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Affiliation(s)
- Sedat Işıkay
- Department of Pediatric Neurology, Gaziantep Children's Hospital, Gaziantep, Turkey.
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Işıkay S, Balcı O, Yılmaz K, Özarslan K. Brucellosis in a Child with Febrile Convulsion: A Case Report. J Pediatr Inf 2013. [DOI: 10.5152/ced.2013.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Işıkay S, Kılınç A, Yılmaz K. Intracranial Calcification in an Infant with Microcephaly. J Pediatr Inf 2012. [DOI: 10.5152/ced.2012.34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Işıkay S, Yılmaz K, Ölmez A. [Two cases of rare cerebral hydatid cyst]. Turkiye Parazitol Derg 2012; 36:41-4. [PMID: 22450921 DOI: 10.5152/tpd.2012.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Hydatid cyst disease (Echinococcosis) is a parasitic illness that is rarely located in the brain. Primary cerebral hydatid cyst disease is rarely seen. We report here rare two cases presenting with sixth cranial nerve palsy with increased intracranial pressure syndrome due to primary cerebral hydatid cyst. A 5-year-old female and a 13-year-old boy complained of headache, strabismus, nausea, and vomiting. Neurological examination revealed sixth nerve palsy and papilloedema. The diagnosis was cerebral hydatid cyst disease and was confirmed with radiological and pathological investigations. Both cases were operated on. The cysts were removed without rupture, and therapy was completed with albendazole for a period of six months. They were symptom-free during the follow-up period. In conclusion, cerebral hydatid cyst disease should be kept in mind in the differential diagnosis of increased intracranial pressure syndrome.
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Affiliation(s)
- Sedat Işıkay
- Gaziantep Üniversitesi Tıp Fakültesi, Çocuk Sağlığı ve Hastalıkları Anabilim Dalı, Gaziantep, Türkiye, Turkey.
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Abstract
Pseudohypoparathyroidism (PHP) is a rare disorder characterized by varying degrees of unresponsiveness to parathyroid hormone. Patients usually present with hypocalcemia-induced seizures or tetany, whereas no case of hypocalcemia-induced cardiac arrhythmia in PHP has been described to date. In this paper, we report the case of a male adolescent with PHP type 1a who presented with hypocalcemia-induced ventricular extrasystoles (bigeminy, trigeminy) and mild corrected QT interval prolongation. The patient had brachydactyly and his second fingers and toes were longer than the others, a finding consistent with PHP. Laboratory tests detected hypomagnesemia, as well as elevated levels of creatine kinase and lactate dehydrogenase. Ventricular arrhythmia and abnormal laboratory tests improved with calcium supplementation and vitamin D treatment. The findings in this patient suggest that hypomagnesemia may make patients with PHP more susceptible to hypocalcemia and may thus prompt a state of hypocalcemia-induced arrhythmia or other cardiac complications.
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Affiliation(s)
- Sedat Işıkay
- Gaziantep University Faculty of Medicine, Department of Pediatrics, Gaziantep, Turkey.
| | | | - Kutluhan Yılmaz
- Gaziantep University Faculty of Medicine, Department of Pediatrics, Gaziantep, Turkey
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Tatlı B, Aydınlı N, Calışkan M, Ozmen M, Kara B, Yaramış A, Dilber C, Yılmaz K, Küçükuğurluoğlu Y, Ekici B. Clinical features of nine patients with alternating hemiplegia of childhood. J Paediatr Child Health 2011; 47:734-6. [PMID: 21449903 DOI: 10.1111/j.1440-1754.2011.02042.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM To define clinical features of patients with alternating hemiplegia of childhood. METHODS We retrospectively reviewed the clinical presentation and course of the disease in patients diagnosed between January 2003 and December 2008 at the Pediatric Neurology Department of the Istanbul Medical Faculty. RESULTS The nine patients had a mean age of 6.6 months (2-15 months) at the onset of symptoms. Paroxysmal eye movements were the early symptom of five patients. All patients had recurrent alternating hemiplegic episodes and relief of symptoms while sleeping. Duration of events varied widely from few minutes to several days and was associated with slowly progressive neurological deterioration. Flunarizine might decrease frequency of events but is not effective to neurological deterioration. Amantadine as an alternative agent is used in add-on therapy, but epileptogenic side effect prevented the evaluation of long-term efficacy. CONCLUSION Trials on new agents like amantadine are necessary for more effective control of the disease.
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Affiliation(s)
- Burak Tatlı
- Department of Pediatric Neurology, Istanbul Medical Faculty, Fatih, Istanbul, Turkey
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Işıkay S, Yılmaz K. Recurrent Meningitis in a Child with Transethmoidal Meningoencephalocele. J Pediatr Inf 2011. [DOI: 10.5152/ced.2011.38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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