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Öğe Assessment of the mandibular incisive canal by panoramic radiograph and cone-beam computed tomography(Selçuk Üniversitesi, 2017) Işık, Bozkurt Kubilay; Taşsöker, Melek; Menziletoğlu, Dilek; Şener, Sevgi; Esen, AlparslanBackground: This study aimed to evaluate the location and characteristics of mental foramen, anterior loop and mandibular incisive canal using cone beam computed tomography (CBCT) and digital panoramic radiograph (DPR). Methods: 430 patients both DPRs and CBCTs scans for the location of mental foramen, anterior loop and mandibular incisive canal visibility were included in this retrospective study. All CBCTs were generated with a cone-beam volumetric tomography device. Results: The mandibular incisive canal (MIC) at least one side in the interforaminal region was detected in 17.7% of panoramic images and 89.1% of CBCT images. There was statistically significant difference between two methods (p=.000) in terms of MICs detection. Conclusion: When planning a surgical operation between the mental foraminas, possibility of the presence of MIC should be taken into consideration. Besides, DPR is not a reliable technique in detecting MIC. In critical situations, use of CBCT is recommended.Öğe Biomechanical evaluation of different fixation systems after Le Fort I osteotomy in polyurethane models of unilateral clefts(CHURCHILL LIVINGSTONE, 2016) Esen, Alparslan; Isik, Kubilay; Saglam, Haci; Ozdemir, Yusuf Bugra; Dolanmaz, DoganWe compared the stability of three different titanium plate-and-screw fixation systems after Le Fort I osteotomy in polyurethane models of unilateral clefts. Thirty-six models were divided into 3 groups. In the first group, we adapted standard Plates 1 mm thick with 2.0 mm screws and placed them bilaterally on the zygomatic buttress and the piriform rim. In the second group, we did the same and added Plates 0.6 mm thick with 1.6 mm screws between the standard 2 mm miniplates on both sides. In the last group, we placed Plates 1.4 mm thick with 2.0 mm screws bilaterally on the maxillary zygomatic buttress and piriform rim. Each group was tested in the inferosuperior (IS) and anteroposterior (AP) directions with a servo-hydraulic testing unit. In the IS direction, displacement values were not significantly different up to 80 N, but between 80 and 210 N, those in the 2 x 1.4 mm group were better. In the AP direction, displacement values were not significantly different up to 40 N, but between 40 and 180 N, they were better in the standard with 1.6 x 0.6 mm group and the 2 x 1.4 mm group. When normal biting forces (90- 260 N) in the postoperative period are considered, the greatest resistance to occlusal loads was seen in the 2 x 1.4 mm group. In the others, the biomechanical properties were better in the AP direction. (C) 2016 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.Öğe Biomechanical evaluation of malleable noncompression miniplates in mandibular angle fractures: an experimental study(CHURCHILL LIVINGSTONE, 2012) Esen, Alparslan; Dolanmaz, Dogan; Tuz, Hakan HifziThe purpose of this experimental study was to test the reliability of a single malleable titanium miniplate using Champy's method of fixing fractures of the mandibular angle. Eighteen sheep hemimandibles were used to evaluate 2 plating techniques. The groups were tested with either a single non-compression titanium miniplate or a single malleable titanium miniplate. A cantilever bending biomechanical test model was used for the samples. Each group was tested with vertical forces using a servohydraulic testing unit. The displacement values in each group at each 10 N stage up to 90 N were compared using 2-way analysis of variance (ANOVA). The displacement values for the 2 groups differed significantly (p < 0.01). The variance analyses showed that the biomechanical behaviour of a single non-compression miniplate was better than that of a single malleable miniplate. The non-compression miniplate fixed by screws had greater resistance to occlusal loads than the malleable plate fixed by screws, and the malleable plate alone was not sufficient to withstand the early postoperative bite force. (C) 2011 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.Öğe Comparison of stability of titanium and absorbable plate and screw fixation for mandibular angle fractures(MOSBY-ELSEVIER, 2008) Esen, Alparslan; Ataoglu, Hanife; Gemi, LokmanObjective. The purpose of this experimental study was to compare the stability of titanium and absorbable plate and screw fixation systems for mandibular angle fractures. Study design. Twenty-one sheep hemimandibles were used to evaluate 3 different plating techniques. The groups were fixated with a single titanium plate, a single absorbable plate and double absorbable plates. A cantilever bending biomechanical test model was used for the samples. Each group was tested with vertical forces by a servohydraulic testing unit. The displacement values in each group at each 10 N stage up to 100 N were compared using the 2-way analysis of variance test. Results. The displacement values for the 3 groups differed significantly (P < .05). The variance analyses showed that titanium plate placement had more favorable biomechanical behavior than others. In addition, the 2 absorbable plates group had more favorable biomechanical behavior than a single absorbable plate group but it was not significantly different at 10 to 40 N. Conclusion. The study demonstrated that titanium plate and screw fixation system had greater resistance to occlusal loads than absorbable plate and screw systems. In addition, a second absorbable plate orientation provides a more favorable biomechanical behavior than a single absorbable plate placement. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2008; 106: 806-811)Öğe Comparison of two different approches to the pterygomaxillary junction in Le Fort I osteotomy(MOSBY-ELSEVIER, 2008) Dolanmaz, Dogan; Esen, Alparslan; Emlik, Dilek; Candirli, Celal; Kalayci, Abdullah; Cicekcibasi, AynurObjective. The purpose of this study was to compare the damage before and after down fracture in Le Fort I osteotomies performed with and without the separation of pterygomaxillary junction using curved osteotomes in a cadaver model. Study design. The study sample comprised 6 cadavers aged between 55 and 70 years (mean age: 63.8 years). Three cadavers were partially edentulous, 2 cadavers still maintained a full complement of teeth and 1 cadaver was edentulous. Le Fort I osteotomy was performed on all cadavers. Pterygomaxillary osteotomies were only performed on the right sides whereas the left sides were left intact. Subsequently, the maxilla was mobilized by applying digital pressure on the anterior maxillary segment. Computed tomography scans of each specimen were obtained before surgery, after surgery-before down fracture and after down fracture to document secondary fractures. Results. Before the down fracture, secondary fractures were found in only 1 specimen (right side), whereas after the down fracture, secondary fractures were found in 5 specimens by CT. After the down fracture, the rate of occurrence of secondary fractures was 62% in the right side and 38% in the left side. Conclusion. With respect to the results of the present study, the use of osteotomes for pterygomaxillary dysjunction increases the incidence of fractures in maxillary osteotomy. However, the occurrence of almost all fractures subsequent to down fracture suggests the presence of possible bony splits that could not be diagnosed by radiographic examination immediately after maxillary osteotomy may have become apparent or transformed into fractures following down fracture.Öğe Diş Hekimliği Fakültesinde Mavi Kod Uygulama Sonuçlarının Değerlendirilmesi(2023 Ağustos) Menziletoğlu, Dilek; Esen, AlparslanAmaç: Mavi kod; hastanelerde acil tıbbi müdahaleye ihtiyaç duyan hastalara, hasta yakınlarına ve tüm hastane personeline en kısa sürede profesyonel ekiple müdahale edilmesini sağlayan acil durum yönetimidir. Uluslararası renkli kod uygulamalarında mavi rengin ortak kullanıldığı tek koddur. Tüm dünyada tek ve aynı renk kullanılmaktadır. Bu çalışmanın amacı; diş hekimliği fakültesinde mavi kod uygulamalarının önemini, etkinliğini ve uygulama sonuçlarını değerlendirmektir. Gereç ve Yöntemler: Necmettin Erbakan Üniversitesi Diş Hekimliği Fakültesi’nde Ocak 2020- Haziran 2022 tarihleri arasında Mavi Kod çağrısı verilen 83 hastanın verileri etik kurul onayı alındıktan sonra retrospektif olarak analiz edildi. Yaş, cinsiyet, çağrının hangi bölümden yapıldığı, ekibin hastaya ulaşma süresi, çağrı sebebi, yapılan müdahalenin sonuçları araştırıldı. Bulgular: Çalışmada 83 hastanın Mavi Kod Bildiri Formu değerlendirildi. Hastaların 53’ü kadın (%63.85) ve 30’u (%36.15) ise erkekti. Yaş ortalaması 32.15 ± 19.53 idi. Çağrıların %25.30’unun pedodonti bölümünden verildiği ve Mavi Kod Ekibinin ortalama 2.38 ± 1.52 dakikada (min/mak: 0.25 / 5.78 dakika) olay yerine ulaştığı ve yapılan müdahale sonucunda 14 hastanın acil servise yönlendirildiği tespit edildi Sonuç: Bu zaman aralığında herhangi bir arrest ya da pre-arrest vakası olmadığı görüldü. Mavi Kod Ekibin her çağrıyı ciddiye alarak olay yerine gittiği, gerekli müdahaleyi yaptıkları ve doğru yönlendirmeler ile istenmeyen hayati risk olasılığını ortadan kaldırdığı sonucuna varıldı.Öğe Effect of 2 flap designs on postoperative pain and swelling after impacted third molar surgery(ELSEVIER SCIENCE INC, 2013) Dolanmaz, Dogan; Esen, Alparslan; Isik, Kubilay; Candirli, CelalObjective. The aim of this study was to evaluate 2 flap designs (envelope and modified triangular flap) for postoperative pain and swelling after mandibular impacted third molar surgery. Study Design. Thirty patients who had symmetric bilateral fully impacted mandibular third molars were selected. Left teeth were approached with an envelope flap, and right teeth were removed using a modified triangular flap. Postoperative pain and swelling were evaluated until the seventh day by using 2 verbal rating scales. Results. Statistical analyses showed that there were no significant differences between the 2 incision techniques regarding postoperative pain and swelling (P > .05). Conclusions. There is no significant difference between the envelope and modified triangular flap regarding postoperative pain and swelling after impacted third molar surgery.Öğe The Effects of Orthognathic Surgery on Periodontal Status(Selçuk Üniversitesi, 2022) Esen, Çağrı; Esen, Alparslan; Soğancı, Ahmet Ertan; Erdur, Emire AybükeBackground: The aim of this study was to investigate the effects of orthognathic surgery on periodontium in the 3rd and 6th months after the operation. Methods: In a total of 10 orthognathic surgery patients (7 females, 3 males, mean age 23.2 ± 4.83), full mouth clinical periodontal measurements such as plaque index (PI), gingival index (GI), probing depth (PD), bleeding on probing (BOP), clinical attachment level (CAL), and mobility (M) were performed before the surgical procedure (T0) at all teeth except the third molars. Six of these patients underwent double jaw orthognathic surgery, 2 patients sagittal split ramus osteotomy, and 2 patients Le Fort I osteotomy. The same full mouth clinical periodontal measurements were repeated in the 3rd (T1) and 6th (T2) months after surgery. Results: There was no statistically significant difference between the T0 and T1 and T2 values in any of the parameters (PI, GI, PD, BOP, CAL, and M) at any of the regions measured (maxillary teeth, mandibular teeth, or full mouth). Conclusion: Within the limits of this study, it has been observed that orthognathic surgical treatments do not have a significant effect on periodontal status. However, further studies are needed before final conclusions can be provided.Öğe Evaluation of strain values of critical anatomic regions for two different pterygomaxillary approaches in Le Fort I osteotomy: An experimental study(MEDICINA ORAL S L, 2017) Ozdemir, Yusuf-Bugra; Dolanmaz, Dogan; Esen, Alparslan; Terzioglu, Hakan; Saglam, HaciBackground: The purpose of this experimental study was to measure stresses both on the pterygoid plates and the skull base following two different pterygomaxillary approaches in Le Fort I osteotomy. Material and Methods: The prepared skull models were randomly divided into 2 groups of 7. In the first group (A), the pterygomaxillary area was left intact. In the second group (B), pterygomaxillary separation was performed with a fine bur. The stresses were measured by using strain gauges. These strain gauges were attached to 6 different anatomical sites. The skull models were mounted on a servo-hydraulic testing unit. Each model was then subjected to a continuous linear tension until a plastic deformation was seen. Results: The statistical analyses showed that there were no significant differences (p>.05) between the 2 groups regarding the strain values. Moreover, no statistical differences (p>.05) were found between the two groups in terms of maximum applied forces. Conclusions: Considering the clinical conditions, the present study shows that when Le Fort I osteotomy performed without pterygomaxillary separation, there is no significant stress on the skull base during the downfracture. Moreover, it is considered that there is no need for an excessive force applied to perform downfracture in Le Fort osteotomies without pterygomaxillary separation.Öğe Histological evaluation of effectiveness of platelet-rich fibrin on healing of sinus membrane perforations: A preclinical animal study(CHURCHILL LIVINGSTONE, 2017) Aricioglu, Ceyhun; Dolanmaz, Dogan; Esen, Alparslan; Isik, Kubilay; Avunduk, Mustafa CihatThe aim of this study was to evaluate the effectiveness of platelet-rich fibrin (PRF) in repairing of Schneiderian membrane perforations in rabbit maxillary sinus. A total of 42 female New Zealand rabbits were randomly divided into two groups. Symmetrical bony defects were created 1 cm in diameter and the sinus membranes were exposed. The Schneiderian membranes were elevated in both sinuses and each membrane was perforated with a 1 cm incision. No treatment was applied to the right perforations in both groups. Left-sided perforations were closed with collagen membrane in the first group and PRF membrane in the other group. Seven animals randomly selected from each group were sacrificed at weeks 1, 2 and 4 in order to be able to examine the amounts of lymphocytes, fibroblasts, veins, and collagen fibers in the area where the membranes were applied. Histological analyses showed that there were no statistically significant differences between the collagen membrane and the PRF membrane in the healing of sinus perforation area. PRF may be considered as an alternative application to collagen membrane in sinus membrane perforations. (C) 2017 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.Öğe İki farklı laterognati vakasında sabit ortodontik tedaviyle birlikte tek çene cerrahi yaklaşımı: Vaka raporu(Selçuk Üniversitesi, 2019) Soğancı, Ahmet Ertan; Esen, Alparslan; Lale, Bekir; Dolanmaz, DoğanAmaç: Bu vaka raporunun amacı; iki farklı laterognati vakasının, sabit ortodontik tedavi ve sadece alt çeneyi içeren cerrahi yaklaşım sonrası meydana gelen değişimlerini sunmaktır. Olgu 1: 20 yaş 2 aylık kadın hasta alt çenesindeki asimetri sebebiyle kliniğimize başvurmuştur. Yapılan ağız dışı fasiyal cephe değerlendirmesinde alt çene ucunun yaklaşık 4 mm kadar sola deviye olduğu laterognati görüntüsü mevcuttu. Hastada underjet ve sol bölgede posterior çapraz kapanış mevcuttu. Olgu 2: 20 yaş 3 aylık kadın hasta alt çenesindeki asimetri sebebiyle kliniğimize başvurmuştur. Yapılan ağız dışı fasiyal cephe değerlendirmesinde alt çene ucunun 6 mm sağa deviye olduğu laterognati görüntüsü mevcuttu. Sağ bölgede posterior çapraz kapanış mevcuttu. İlk olgu için 15 aylık, ikinci olguda ise 17 aylık sabit ortodontik tedaviden sonra bilateral sagittal split osteotomisi, uygulanmıştır. Sonuç: Tedavi edilen iki farklı laterognati olgusunda; sabit ortodontik tedaviyle birlikte sadece alt çeneye uygulanan cerrahi yaklaşım; ciddi asimetriye sahip hastaların fasiyal ve dental laterognati anomalisinin düzeltilmesini gerçekleştirerek, tatmin edici sonuçlar alınmasını sağlamıştır.Öğe Maksiller sinüste ektopik üçüncü molar diş: Bir olgu sunumu(Selçuk Üniversitesi, 2014) Küçükkolbaşı, Hasan; Esen, AlparslanEktopik dişler alveolar ark dışında sürmüş veya farklı bir bölgede gömülü olarak kalmış dişler olarak tanımlanmaktadır. Ektopik dişlerin görülme sıklığı %0,1-1 arasında değişmektedir. Etiyolojisinde gelişimsel düzensizlikler, enfeksiyon, travma ve idiyopatik nedenler gösterilmektedir. Mandibular kondil, koronoid çıkıntı, nazal kavite, sert damak ve maksiler sinüs en sık görüldüğü anatomik bölgelerdir. Bu olguda rutin alınan radyografiler sonucu teşhis edilmiş, 24 yaşında bir kadın hastanın sol maksiller sinüsünün posterior duvarında lokalize olmuş ektopik üçüncü molar dişin Caldwell-Luc yöntemiyle çekimi sunulmaktadır.Öğe Management of central giant cell granuloma of the jaws with intralesional steroid injection and review of the literature(SPRINGER HEIDELBERG, 2016) Dolanmaz, Dogan; Esen, Alparslan; Mihmanli, Ahmet; Isik, KubilayWe report the results of the intralesional steroid injections for the management of central giant cell granuloma (CGCG) of the jaws. Seven CGCGs were treated with intralesional injection of corticosteroids. To accomplish this, 3.5 mL of triamcinolone and 3.5 mL of 0.5 % marcaine with 1/200,000 epinephrine (total 7 mL) were mixed. An adequate amount of steroid was injected into different areas of the lesion. This procedure was repeated on a weekly basis for 6 weeks. Clinical and radiological examination showed complete resolution and ossification of the lesions in four patients. Partial recovery was achieved in two patients. One patient did not respond to the treatment and underwent surgical curettage. We suggest that intralesional steroid injection is safe and effective for the treatment of CGCG, especially in non-aggressive lesions.Öğe Mandibula angulus fraktürlerinde titanyum ve rezorbe olabilen plak ve vida fiksasyonlarının stabilitelerinin karşılaştırılması(Selçuk Üniversitesi Sağlık Bilimleri Enstitüsü, 2008) Esen, Alparslan; Ataoğlu, HanifeGünümüze kadar yapılan çalışmalar değerlendirildiğinde, mandibula fraktürlerinin tedavisinde titanyum plak ve vida sistemlerinin kullanıldığı görülmektedir. Ancak metal plak ve vida sistemlerinin ikinci bir cerrahi işlemle çıkarılmalarının gerekliliği ve metallerin bilinen diğer dezavantajları rezorbe olabilen fiksasyon sistemlerinin gelişmesine yol açmıştır. Bu çalışmada mandibula angulus fraktürlerinde titanyum ve rezorbe olabilen fiksasyon sistemlerinin stabilitelerini karşılaştırmak amaçlandı. Çalışmada angulus bölgesinde fraktür oluşturulan 21 adet koyun hemimandibulası kullanıldı ve bunlar üç gruba ayrıldı. Birinci gruba fiksasyon için eksternal oblik kenara 2.0 mm çapında, 5 mm uzunluğunda vidalar kullanılarak, 4 delikli bir adet nonkompresif titanyum miniplak, ikinci gruba yine ekstarnal oblik kenara rezorbe olabilen 2.5 mm çapında, 6 mm uzunluğunda vidalar kullanılarak, 4 delikli bir adet rezorbe olabilen plak, üçüncü gruba ise rezorbe olabilen 2.0 mm çapında, 5 mm uzunluğunda vidalar kullanılarak, biplanar pozisyonda iki adet 4 delikli rezorbe olabilen plaklar uygulandı. Daha sonra tüm modeller hazırlanan bir fiksasyon aygıtı ile basma testi uygulayabilen bir servohidrolik test cihazına yerleştirildi ve her bir modele 100 N' a kadar sürekli doğrusal kuvvet uygulandı. 0-100 N arasında her 10 N artışta modellerde meydana gelen deplasman değerleri kaydedildi. Oluşan yer değiştirme miktarları istatistiksel değerlendirme ile kıyaslandı ve gruplar arasında fark bulundu. Çalışma, titanyum miniplak ve vida sistemlerinin fiksasyon açısından rezorbe olabilen sistemlerden daha güvenilir olduğunu göstermektedir.Öğe Treatment of localized langerhans' cell histiocytosis of the mandible with intralesional steroid injection: report of a case(MOSBY-ELSEVIER, 2010) Esen, Alparslan; Dolanmaz, Dogan; Kalayci, Abdullah; Gunhan, Oemer; Avunduk, Mustafa CihatLocalized Langerhans cell histiocytosis (LLCH), formerly known as eosinophilic granuloma, mainly affects the skull, mandible, vertebrae, and ribs in children and the long bones of adults. Symptoms range from none to pain, swelling, and tenderness over the site of the lesion. General malaise and fever occasionally are present. Radiographically, lesions appear as radiolucent areas with well demarcated borders. LLCH may resolve spontaneously after biopsy in a period of months to years. However, if features include continuous pain, decrease of function, pathologic fractures, migration and resorption of teeth, or rapid progression, then active treatment needs to be considered. Treatment approaches include surgery, radiotherapy, chemotherapy, and intralesional injection of corticosteroids. In children with mandibular LLCH, 1 dose of methyprednisolone succinate injection has proven to be adequate. However, injections have not been performed in cases involving pathologic fracture. We report a new case of LLCH of the mandible that caused a pathologic fracture in an adult patient. Repeated intralesional corticosteroid injections resulted in fracture line disappearance within 14 months and lesion healing by the end of the 36-month follow-up. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2010; 109: e53-e58)
