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Featured researches published by Orçun Toptaş.


Nigerian Journal of Clinical Practice | 2014

Effects of the topical hemostatic agent Ankaferd Blood Stopper on the incidence of alveolar osteitis after surgical removal of an impacted mandibular third molar.

M Tek; İsmail Akkaş; Orçun Toptaş; F Ozan; I Sener; C Bereket

BACKGROUND Alveolar osteitis (AO) is a commonly seen post-operative complication during the wound-healing period after permanent tooth extraction or surgical removal of impacted third molar teeth. OBJECTIVES The aim of this clinical study was to evaluate the effects of administration of the topical hemostatic agent Ankaferd Blood Stopper (ABS) into the socket on AO formation after impacted mandibular third molar extraction. PATIENTS AND METHODS Bilaterally, 100 half-impacted mandibular third molars were extracted in 50 patients. Then, 1.0 mL ABS was administered to achieve hemostasis in one half of the sockets and as a control, the other half was irrigated with 1.0 mL physiological serum after surgery. RESULTS There was no statistically significant difference in terms of AO formation ( P > 0.05) between the extraction sites. However, the postoperative pain in ABS administration sites was higher than in the other sites for the first 2 days after surgery ( P < 0.05). CONCLUSIONS The results showed that ABS administration did not increase the incidence of AO formation. Thus, ABS can be used safely for hemostasis after impacted mandibular third molar surgery.


Archives of Oral Biology | 2016

Does stinging nettle (Urtica dioica) have an effect on bone formation in the expanded inter-premaxillary suture?

Celal Irgin; Bayram Çörekçi; Fatih Özan; Koray Halicioglu; Orçun Toptaş; Arzu Birinci Yildirim; Arzu Ucar Turker; Fahri Yilmaz

OBJECTIVE To determine whether systemically given stinging nettle (SN) has an effect on bone formation in response to expansion of the rat inter-premaxillary suture. MATERIALS AND METHODS A total of 28 male Wistar albino rats were randomly divided into 4 equal groups: control (C), only expansion (OE), SN extract given only during the expansion and retention periods (SN group; a total of 17days), and SN extract given during the nursery phase before expansion (a period of 40days) and during the expansion and retention periods (N+SN group; a total of 57days). After the 5-day expansion period was completed, the rats in the OE, SN, and N+SN groups underwent 12days of mechanical retention, after which they were sacrificed, and their premaxilla were dissected and fixed. A histologic evaluation was done to determine the number of osteoblasts, osteoclasts, and capillaries, as well as the number and intensity of inflammatory cells and new bone formation. RESULTS Statistically significant differences were found between the groups in all histologic parameters except the ratio of intensities of inflammatory cells. New bone formation and the number of capillaries were significantly higher in the SN groups than in the other groups. The statistical analysis also showed that the numbers of osteoblasts, osteoclasts, and capillaries were highest in the N+SN group. CONCLUSION Systemic administration of SN may be effective in accelerating new bone formation and reducing inflammation in the maxillary expansion procedure. It may also be beneficial in preventing relapse after the expansion procedure.


Medicina Oral Patologia Oral Y Cirugia Bucal | 2015

Effect of Royal Jelly on new bone formation in rapid maxillary expansion in rats

Fatih Özan; Bayram Çörekçi; Orçun Toptaş; Koray Halicioglu; Celal Irgin; Fahri Yilmaz; Yasin Hezenci

Background The aim of this study was to evaluate the effects of long and short term systemic usage of royal jelly on bone formation in the expanded maxillary suture in a rat model. Material and Methods Twenty eight Wistar albino rats were randomly divided into 4 equal groups: Control (C); Only Expansion (OE), Royal Jelly (RJ) group, Royal Jelly was given to rats by oral gavage only during the expansion and retention period; Royal Jelly plus Nursery (RJN) group, Royal Jelly was given to rats by oral gavage during their nursery phase of 40 days and during the retention period. After the 5 day expansion period was completed, the rats underwent 12 days of mechanical retention. All rats were sacrificed in same time. Histological examination was performed to determine the number of osteoclasts, number of osteoblasts, number of capillaries, inflammatory cell infiltration, and new bone formation. Results New bone formation, number of osteoclasts, number of osteoblasts, and the number of capillaries in the expanded maxillary sutures were higher in the RJ and RJN groups than in the other groups. Statistical analysis also demonstrated that new bone formation and the number of osteoblasts was also highest in the RJN group. Conclusions The systemic administration of Royal Jelly in conjunction with rapid maxillary expansion may increase the quality of regenerated bone. Key words:Bone formation, rapid maxillary expansion, Royal jelly.


Journal of Maxillofacial and Oral Surgery | 2015

Bilateral Glandular Odontogenic Cyst of Mandible: A Rare Occurrence

İsmail Akkaş; Orçun Toptaş; Fatih Özan; Fahri Yilmaz

Glandular odontogenic cysts (GOCs) of the jaw are rare with well-defined limits radiologically, unusual histopathological features and a high recurrence rate. The radiographic appearance of GOCs vary and are not pathognomonic. Definitive diagnosis of the GOC is established only by histopathological examinations. Histologically, GOC is characterized by a thin nonkeratinized squamous epithelial lining, with papillary projections, nodular thickenings, mucous (goblet) cells with intraepithelial mucous pools and intraepithelial glandular, microcystic or duct-like structures. We present an unusual case of a bilateral GOC in the mandible. This case report is also the first documented case of bilateral GOC in the mandible.


Journal of clinical and diagnostic research : JCDR | 2014

Intraosseous epidermoid cyst associated with impacted mandibular wisdom teeth: an uncommon entity.

Orçun Toptaş; İsmail Akkaş; Mustafa Tek; Fatih Özan; Cetin Boran

Epidermoid and dermoid cysts of the jaws are seen rarely. The formation theories of the intraosseous epidermoid cyst (IEC) are not clear. The radiographic appearance is similar with unilocular cysts. Surgical enucleation is the suggested treatment method for epidermoid cysts. This case report presents bilateral mandibular intraosseous epidermoid cysts with impacted wisdom teeth which is the first documented case in the literature.


European Journal of Dentistry | 2013

Isolated oligodontia in monozygotic twins.

Koray Halicioglu; Hakan Sahin; Bayram Çörekçi; Celal Irgin; Orçun Toptaş

This case report defines a case of isolated oligodontia of 9 and 10 permanent teeth in 9-year-old monozygotic twin sisters and gives information about the possible genetic and environmental etiology, related dental anomalies and treatment options. The twins have a negative family history of hypodontia and oligodontia in their parents, as well as their paternal and maternal grandmothers and first cousins. No other dental anomalies could be detected in either of the twins. With the occurrence of similarly located tooth agenesis, except for one tooth, in monozygotic twins, one may consider the influence of genetic and/or environmental factors in their etiology. Hereditary relationships associated with oligodontia could help the clinicians to predict the possibility of its occurrence in other family members and in the next generations. However, clinicians should consider oligodontia when it is not hereditary.


Medicina Oral Patologia Oral Y Cirugia Bucal | 2016

Association of Toll-like receptors 2, 3, and 4 genes polymorphisms with periapical pathosis risk

Ülkü Özan; Zeynep Ocak; Fatih Özan; Elif-Aybala Oktay; Orçun Toptaş; Halil Sahman; İhsan Yikilgan; Hasan Orucoglu; Kürşat Er

Background The aim of this study was to investigate the role of gene variations of Toll-like receptors (TLR) 2, 3, and 4 on genetic susceptibility to periapical pathosis. Material and Methods One hundred patients were included in the study and divided into two groups as follows; Control Group (n=50) that have root canal treatment and no periapical lesion, Patient Group (n=50) that have root canal treatment and periapical lesion. TLR2 Arg753Gln, TLR3 (c.1377C/T) and TLR4 Asp299Gly and Thr399Ile polymorphisms were genotyped by using PCR-RFLP. Genotypical analysis of control and patient groups were investigated to disclose whether there is any association between periapical lesions and gene variations. Results There are no significant statistical differences between control and patient groups according to TLR 2 and 4 gene sequence. On the contrary, CC allele detected 74% for TLR 3 in patient group, and this difference was found to be statistically significant (p < 0.005). Conclusions According to these results, it can be suggested that patients with Toll-like receptor 3 gene polymorphisms could be susceptible to periapical pathosis. Key words:Toll-like receptors, periapical pathosis, endodontics.


Nigerian Journal of Clinical Practice | 2015

Dynamic assessment of Capparis spinosa buds on survival of periodontal ligament cells using a real‑time cell analysis method

F Ozan; Ü Özan; Ea Oktay; Orçun Toptaş; H Özdemir; Er Kürþat

BACKGROUND Tooth avulsion is the most severe type of traumatic dental injuries and it results in the complete displacement of the tooth out of its socket in alveolar bone. Reimplantation of the tooth is considered to be a best treatment modality due to its biological and psychological advantages. Its prognosis depends on the extra alveolar time, the storage medium, and the patients general health. OBJECTIVE The aim of this study was to evaluate the effect of Capparis spinosa (C. spinosa) in maintaining the viability of human periodontal ligament (PDL) cells using a real-time cell analysis method. MATERIALS AND METHODS Periodontal ligament cells were obtained from healthy human third molars extracted for orthodontic purposes. The storage media tested were: Dulbeccos Modified Eagle Medium (DMEM), C. spinosa, Hanks Balanced Salt Solution (HBSS), and light milk. A real-time cell analyzer system was used to evaluate cell viability. After seeding cell suspensions into the wells of the E-plate 96, PDL cells were treated with each of tested media and monitored for every 5 min for 26 h. Statistical analysis of the data was accomplished using one-way analysis of variance complemented by the Tukey test. The level of significance was set at P < 0.05. RESULTS Dulbeccos Modified Eagle Medium (control) and C. spinosa groups had significantly higher cell index values compared with the HBSS and light milk (P < 0.05). Although, C. spinosa showed better results than DMEM (control), but this difference was not found statistically significant. CONCLUSION Capparis spinosa can be a suitable, alternative storage medium for avulsed teeth.


Journal of Craniofacial Surgery | 2014

Effects of energy drinks on soft tissue healing.

Mustafa Tek; Orçun Toptaş; İsmail Akkaş; Hakki Oguz Kazancioglu; Tulin Firat; Seref Ezirganli; Fatih Özan

Abstract The aim of the present study was to investigate the effects of an energy drink (ED) on soft tissue wound healing in the rat model. Thirty-six male Wistar albino rats were randomly divided into 2 groups. A full-thickness paravertebral linear incision wound model was created. The experimental group (EG) received an ED (Red Bull), and the control group (CG) received water. Red Bull (3.57 mL/kg/d) was administered to the rats by the oral gavage method on the day before the skin incision and continued for 14 days. The rats were sacrificed (n = 6 in each group) on the 3rd, 7th, and 14th day of the study. Sections were obtained from excised linear wound healing site and stained with hematoxylin-eosin and Masson trichrome for morphological analysis. To assess angiogenesis on the sections, immunohistochemical studies were carried out using vascular endothelial growth factor antibody and alpha smooth muscle actin Ab-1. The breaking strength of the wound healing site was measured in Newtons using a tensiometer. Morphological analysis showed that collagen deposition in the wound areas was statistically higher in the EG compared with that of the CG at both the third and seventh days (P < 0.05). Re-epithelialization on healing sites in the EG was statistically higher than in the CG on the seventh day (P < 0.05). The results of the immunohistochemical studies indicated that the numbers of new blood vessels in the wound healing sites of the EG were significantly higher at the 7th and 14th days when compared with the CG (P < 0.05). The breaking strength of the wound healing sites was also significantly higher on the 7th and 14th days in the EG (P < 0.05). The results demonstrate that ED accelerates soft tissue wound healing and that its effect may be due to increased collagen deposition, re-epithelialization, and new blood vessel formation in the wound.


SDÜ Sağlık Bilimleri Dergisi | 2011

MANDİBULER RAMUS LEZYONLARININ CERRAHİ ZORLUKLARI

Orçun Toptaş; Timuçin Baykul; Müge Çina Aksoy; Gülperi Koçer; Yavuz Findik

The mandible ramus lesions are more difficult to access in surgical procedures than mandible corpus lesions because of surrounding vital tissues of the mandible ramus. In our study, 22 patients with cysts and tumors who were treated between the years 2000-2011 at Suleyman Demirel University, Faculty of Dentistry, Oral and Maxillofacial Surgery Department, were examined prospectively in terms of transportation difficulties mandible ramus . 19 patients were treated with enucleation and curettage, enucleation was applied after the marsupialization and decompression treatment to the two patient. One patient was treated with partial resection because of the Ameloblastoma . Nerve damage after the surgery was identified as the most common complication in patients. In located ramus of lesions, utilization of the tomographic imaging methods and very good knowledge of the anatomical structure of the region or at least used a hand tool, make the process more convenient .

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Fatih Özan

Abant Izzet Baysal University

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İsmail Akkaş

Abant Izzet Baysal University

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Koray Halicioglu

Abant Izzet Baysal University

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Timuçin Baykul

Süleyman Demirel University

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Bayram Çörekçi

Abant Izzet Baysal University

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Celal Irgin

Abant Izzet Baysal University

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Fahri Yilmaz

Abant Izzet Baysal University

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Cetin Boran

Abant Izzet Baysal University

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F Ozan

Abant Izzet Baysal University

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Mustafa Tek

Ondokuz Mayıs University

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