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Güney Z, Kurgan Ş, Önder C, Serdar MA, Günhan Ö, Günhan M. Expression of tight junction proteins in smokers and non-smokers with generalized Stage III periodontitis. J Periodontal Res 2023; 58:1281-1289. [PMID: 37697913 DOI: 10.1111/jre.13184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 08/22/2023] [Accepted: 09/01/2023] [Indexed: 09/13/2023]
Abstract
OBJECTIVE This study aims to evaluate the gingival crevicular fluid (GCF) levels of tumor necrosis factor-α (TNF-α), zonula occludens-1 (ZO-1), occludin (Occ), and tricellulin (Tric) in periodontitis, as well as their alterations due to smoking. BACKGROUND Tight junctions (TJ), which consist of transmembrane and cytoplasmic scaffolding proteins, connect the epithelial cells of the periodontium. Occ, claudins, junctional adhesion molecules, and Tric are transmembrane TJ proteins found at the cell membrane. The transmembrane TJ proteins and the intracellular cytoskeleton are directly linked by cytoplasmic scaffolding proteins such as ZO-1. Although the functions and locations of these molecules have been defined, their behavior in periodontal inflammation is unknown. METHODS The study included four groups: individuals with periodontal health without smoking (C; n = 31), individuals with generalized Stage III periodontitis without smoking (P; n = 28), individuals with periodontal health while smoking (CS; n = 22), and individuals with generalized Stage III periodontitis while smoking (PS; n = 18). Clinical periodontal parameters were recorded, and enzyme-linked immunosorbent assay (ELISA) was used to examine ZO-1, Occ, Tric, and TNF-α levels in GCF. RESULTS In the periodontitis groups, clinical parameters were significantly higher (p < .001). The site-specific levels of TNF-α, ZO-1, Tric, and Occ in the P group were statistically higher than those in the other groups (p < .05). TNF-α, probing pocket depth (PPD), and bleeding on probing (BOP) exhibited positive correlations with all TJ proteins (p < .005). CONCLUSIONS Smoking could potentially affect the levels of epithelial TJ proteins in the GCF, thereby potentially playing a significant role in the pathogenesis of the periodontal disease.
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Affiliation(s)
- Zeliha Güney
- Department of Periodontology, Faculty of Dentistry, Ankara University, Ankara, Turkey
- Department of Periodontology, Faculty of Dentistry, Ankara Medipol University, Ankara, Turkey
| | - Şivge Kurgan
- Department of Periodontology, Faculty of Dentistry, Ankara University, Ankara, Turkey
| | - Canan Önder
- Department of Periodontology, Faculty of Dentistry, Ankara University, Ankara, Turkey
| | - Muhittin A Serdar
- Department of Medical Biochemistry, School of Medicine, Acibadem University, İstanbul, Turkey
| | - Ömer Günhan
- Department of Pathology, School of Medicine, TOBB ETÜ University, Ankara, Turkey
| | - Meral Günhan
- Department of Periodontology, Faculty of Dentistry, Ankara University, Ankara, Turkey
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Güney Z, Kurgan Ş, Önder C, Tayman MA, Günhan Ö, Kantarci A, Serdar MA, Günhan M. Wnt signaling in periodontitis. Clin Oral Investig 2023; 27:6801-6812. [PMID: 37814163 DOI: 10.1007/s00784-023-05294-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 09/27/2023] [Indexed: 10/11/2023]
Abstract
OBJECTIVE This study aimed to evaluate the Wnt/β-catenin signaling pathway activity in gingival samples obtained from patients with periodontitis. MATERIALS AND METHODS Fifteen patients with stage III grade B (SIIIGB) and eleven with stage III grade C (SIIIGC) periodontitis were included and compared to 15 control subjects. β-Catenin, Wnt 3a, Wnt 5a, and Wnt 10b expressions were evaluated by Q-PCR. Topographic localization of tissue β-catenin, Wnt 5a, and Wnt 10b was measured by immunohistochemical analysis. TNF-α was used to assess the inflammatory state of the tissues, while Runx2 was used as a mediator of active destruction. RESULTS Wnt 3a, Wnt 5a, and Wnt 10b were significantly higher in gingival tissues in both grades of stage 3 periodontitis compared to the control group (p < 0.05). β-Catenin showed intranuclear staining in connective tissue in periodontitis, while it was confined to intracytoplasmic staining in epithelial tissue and the cell walls in the control group. Wnt5a protein expression was elevated in periodontitis, with the most intense staining observed in the connective tissue of SIIIGC samples. Wnt10b showed the highest density in the connective tissue of patients with periodontitis. CONCLUSIONS Our findings suggested that periodontal inflammation disrupts the Wnt/β-catenin signaling pathway. CLINICAL RELEVANCE Periodontitis disrupts Wnt signaling in periodontal tissues in parallel with tissue inflammation and changes in morphology. This change in Wnt-related signaling pathways that regulate tissue homeostasis in the immunoinflammatory response may shed light on host-induced tissue destruction in the pathogenesis of the periodontal disease.
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Affiliation(s)
- Zeliha Güney
- Faculty of Dentistry Department of Periodontology, Ankara University, 06500-Cankaya, Ankara, Turkey
- Faculty of Dentistry Department of Periodontology, Ankara Medipol University, Ankara, Turkey
| | - Şivge Kurgan
- Faculty of Dentistry Department of Periodontology, Ankara University, 06500-Cankaya, Ankara, Turkey.
| | - Canan Önder
- Faculty of Dentistry Department of Periodontology, Ankara University, 06500-Cankaya, Ankara, Turkey
| | - Mahmure Ayşe Tayman
- Faculty of Dentistry Department of Periodontology, Yildirim Beyazit University, Ankara, Turkey
| | - Ömer Günhan
- Faculty of Medicine Department of Pathology, TOBB University, Ankara, Turkey
| | | | | | - Meral Günhan
- Faculty of Dentistry Department of Periodontology, Ankara University, 06500-Cankaya, Ankara, Turkey
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Celepli P, Taşcioğlu T, Ciman Y, Erdem Y, Çelik H, Günhan Ö. Mucosa-Associated Lymphoid Tissue Lymphoma With Lymphomeningothelial Lesion of the Dura. Int J Surg Pathol 2022:10668969221137526. [PMID: 36514290 DOI: 10.1177/10668969221137526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Mucosa-associated lymphoid tissue (MALT) was first described as low-grade lymphoma associated with the stomach mucosa. Although the stomach and ocular adnexa are the most common localizations of MALT lymphoma, it has also been described in many other organs, including the head and neck, lungs, thyroid, breast, bladder, saliva glands, conjunctiva, and tear glands. MALT lymphoma originating from the dura is rare. The case is here presented of an 83-year-old female operated on with an initial diagnosis of acute subdural hematoma. In the histopathological examination, there was seen to be lymphoplasmacytic infiltration of the dura and a lymphomeningothelial lesion. Immunohistochemically, low-grade MALT lymphoma showing B-cell phenotype was considered. This is the first reported case of lymphomeningothelial lesion in MALT lymphoma originating from the dura.
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Affiliation(s)
- Pınar Celepli
- Department of Pathology, Ankara Training and Research Hospital, Turkey
| | - Tuncer Taşcioğlu
- Department of Neurosurgery, Ankara Training and Research Hospital, Turkey
| | - Yağmur Ciman
- Department of Pathology, Ankara Training and Research Hospital, Turkey
| | - Yavuz Erdem
- Department of Neurosurgery, Ankara Training and Research Hospital, Turkey
| | - Haydar Çelik
- Department of Neurosurgery, Ankara Training and Research Hospital, Turkey
| | - Ömer Günhan
- Department of Pathology, TOBB ETU School of Medicine, Turkey
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Demir E, Günhan Ö. Treatment Results of Dentigerous Cysts Managed by Marsupialisation, Enucleation or Enucleation with Platelet Rich Plasma-a Retrospective Study. meandros 2021. [DOI: 10.4274/meandros.galenos.2021.86094] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Günhan Ö, Kahraman D, Yalçın ÜK. The possible pathogenesis of cemento-osseous dysplasia: A case series and discussion. Advances in Oral and Maxillofacial Surgery 2021. [DOI: 10.1016/j.adoms.2021.100105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Rodrigues-Fernandes CI, de Cáceres CBL, Sant'Ana MSP, Soares CD, de Carvalho MGF, van Heerden WFP, Robinson L, Radhakrishnan R, Hunter KD, Gomez RS, de Almeida OP, Vargas PA, Günhan Ö, Tomasi RA, Alawi F, Pontes HAR, Fonseca FP. Oral lesions containing amyloid-like material. Oral Surg Oral Med Oral Pathol Oral Radiol 2021; 132:190-201. [PMID: 33737015 DOI: 10.1016/j.oooo.2021.01.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 01/13/2021] [Indexed: 02/07/2023]
Abstract
During oral pathology daily practice, true amyloid may be identified in oral amyloidosis and several odontogenic tumors. However, histologic examination often reveals other oral and perioral diseases with similar eosinophilic, acellular, amorphous substances. These include extensive areas of collagenous sclerosis, fibrin deposition, elastic fiber degeneration, and dentinoid material, which may resemble amyloid under light microscopic examination. These materials are often termed "amyloid-like" due to their close histologic resemblance to true amyloid. The rarity of most of these conditions and their strong histologic similarity may hamper an accurate diagnosis. Definitive diagnosis of these lesions may require clinical correlation; laboratory evaluation; histochemical or immunohistochemical reactions; and, in some cases, genetic investigation. In this review, we describe the main clinicopathologic features of this group of diseases that may manifest in the oral and/or perioral regions and that have in common the presence of amyloid-like material deposition.
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Affiliation(s)
| | | | - Maria Sissa Pereira Sant'Ana
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ciro Dantas Soares
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas
| | | | - Willie F P van Heerden
- Department of Oral Pathology and Oral Biology, School of Dentistry, University of Pretoria, Pretoria, South Africa
| | - Liam Robinson
- Department of Oral Pathology and Oral Biology, School of Dentistry, University of Pretoria, Pretoria, South Africa
| | - Raghu Radhakrishnan
- Department of Oral Pathology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Keith D Hunter
- Department of Oral Pathology and Oral Biology, School of Dentistry, University of Pretoria, Pretoria, South Africa; Academic Unit of Oral and Maxillofacial Pathology, School of Clinical Dentistry, The University of Sheffield, Sheffield, UK
| | - Ricardo Santiago Gomez
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Pablo Agustin Vargas
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas; Department of Oral Pathology and Oral Biology, School of Dentistry, University of Pretoria, Pretoria, South Africa
| | - Ömer Günhan
- Department of Pathology, TOBB ETU Medical School, Ankara, Turkey
| | - Ramiro Alejandro Tomasi
- Department of Pathology, School of Dentistry, National University of Córdoba, Córdoba, Argentina
| | - Faizan Alawi
- Division of Dermatopathology, Department of Dermatology, University of Pennsylvania, Philadelphia, PA
| | | | - Felipe Paiva Fonseca
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Department of Oral Pathology and Oral Biology, School of Dentistry, University of Pretoria, Pretoria, South Africa.
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Kahraman D, Yalavac P, Akar E, Özen Ö, Günhan Ö. Coexistence of sclerosing polycystic adenosis and dysgenetic polycystic disease of parotid, Report of a case. INDIAN J PATHOL MICR 2020; 63:109-111. [PMID: 32031136 DOI: 10.4103/ijpm.ijpm_502_18] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Sclerosing polycystic adenosis (SPA) is a rare benign salivary gland lesion. Dysgenetic polycystic disease (DPD), which is a histologically similar lesion, may cause a lattice-like gross appearance with bilateral enlargement of the entire salivary glands. In this report, we present a case of SPA in the right parotid and coexistent DPD involving the both parotid.
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Affiliation(s)
- Devrim Kahraman
- Department of Pathology, TOBB ETU School of Medicine, Ankara, Turkey
| | - Pýnar Yalavac
- Department of Pathology, TOBB ETU School of Medicine, Ankara, Turkey
| | - Eylem Akar
- Department of Pathology, Acibadem Hospital, İstanbul, Turkey
| | - Özgür Özen
- Department of Radiology, Memorial Ankara Hospital, Ankara, Turkey
| | - Ömer Günhan
- Department of Pathology, TOBB ETU School of Medicine, Ankara, Turkey
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Başak K, Günhan Ö, Akbulut S, Aydin S. Salivary gland anlage tumour of the nasopharynx: A case report and review for histopathological characteristics. Malays J Pathol 2019; 41:345-350. [PMID: 31901920] [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] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
INTRODUCTION Congenital salivary gland anlage tumour of the nasopharynx is a lesion which usually presents with nasal and upper respiratory tract obstruction in the neonatal period. Timely diagnosis is essential to prevent the occurrence of respiratory complications in later childhood. CASE REPORT We present a 8-year-old boy complaining from difficulty in breathing and breastfeeding in the neonatal period due to an adenoid-like nasopharyngeal mass. Histological examination revealed solid and cystic squamous nests and numerous duct-like structures within collagenised stroma. Both epithelial and myoepithelial differentiation were noted in the tubular component. DISCUSSION A review of the clinical and histopathological features of published cases revealed that ancient lesions showed more prominent and complex epithelial component and more collagen rich stroma. We would like to suggest the possibility of salivary gland anlage tumour to be considered in the differential diagnosis of neonatal respiratory distress cases.
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Affiliation(s)
- K Başak
- University of Health Science, Kartal Dr.Lütfi Kırdar Education and Research Hospital, Department of Pathology, İstanbul, Turkey.
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Dereci Ö, Akgün Ş, Celasun B, Öztürk A, Günhan Ö. Histological evaluation of the possible transformation of peripheral giant cell granuloma and peripheral ossifying fibroma: A preliminary study. INDIAN J PATHOL MICR 2017; 60:15-20. [PMID: 28195085 DOI: 10.4103/0377-4929.200032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
AIMS The objective of this study is to describe shared morphological features of peripheral giant cell granuloma (PGCG) and peripheral ossifying fibroma (POF) in detail and discuss the possible relationship between them. MATERIALS AND METHODS Ten intermediate cases with features resembling to both POF and PGCG were selected and type 3 and 1 collagen immunostainings were performed for evaluation of the connective tissue maturation. Immunohistochemical staining percentage (SP) for stromal cells in the slides of POF and PGCG counterparts of intermediate lesions was scored as 1 when the SP was above 10%, 2 when the SP was above 25%, 3 when the SP was above 50% and 4 when the SP was above 75%. Staining intensity (SI) of immunuhistochemical staining was graded and scored as 1 - mild, 2 - moderate, and 3 - severe. An immunoreactivity score was calculated by multiplying SP and SI. RESULTS All intermediate lesions comprised osteoclast type multinucleated giant cells and partly mineralized hard tissue component. Parts of intermediate lesions resembling POF showed higher type 1 collagen immunoreactivity compared to the PGCG counterparts of intermediate lesions (P < 0.05). PGCG counterparts showed higher type 3 collagen immunoreactivity compared to the POF counterparts of the intermediate lesions (P < 0.05). CONCLUSION POF may be a later stage lesion with morphologically more mature components. A possible transformation may be considered for these two lesions.
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Affiliation(s)
- Ömür Dereci
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Eskişehir Osmangazi University, Eskişehir, Turkey
| | - Şivge Akgün
- Department of Periodontology, Faculty of Dentistry, Ankara University, Ankara, Turkey
| | - Bülent Celasun
- Gören Private Pathology Labratory, Private Gören Pathology Institution, Ankara, Turkey
| | - Adnan Öztürk
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Ankara University, Ankara, Turkey
| | - Ömer Günhan
- Department of Pathology, Gülhane Military Medical Academy, Ankara, Turkey
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Bozkurt P, Kolsuz ME, Günhan Ö, Erdem E, Orhan K. Preauricular pilomatricoma: An uncommon entity in a dental pediatric patient. Int J Surg Case Rep 2016; 30:62-65. [PMID: 27907820 PMCID: PMC5134083 DOI: 10.1016/j.ijscr.2016.11.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 11/11/2016] [Accepted: 11/11/2016] [Indexed: 11/27/2022] Open
Abstract
Pilomatricomas are common lesions although rarely encountered in dental practice. Dental professionals especially oral surgeons and pediatric dentists should be aware of the condition during their practice. Common differential diagnosis of preauricular pilomatricoma does not involve temporomandibular joint disease. This condition should be added to differential diagnosis. Meticulous examinations should be made and misdiagnosis with temporomandibular joint disease should be eliminated.
Introduction Pilomatricomas are benign follicular skin appendage tumors, commonly occurring in children and young adults. Most patients admit to dermatologists to seek treatment and are well known by them; however, dental professionals, especially pediatric dentists are not familiar with these tumors. Presentation of case This report presents a 16-year-old female with preauricular pilomatricoma, located beneath the overlying skin of the temporomandibular region. Clinical examination revealed an asymptomatic lump, the overlying skin revealed no abnormalities. Patient was unaware of the lesion. Discussion Pilomatricomas are commonly encountered in the maxillofacial region, although not considered in differential diagnosis by dental professionals. They usually present as, asymptomatic, subcutaneous masses; although symptomatic cases have been reported. In literature, common differential diagnosis for head and neck pilomatricoma includes sebaceous cyst, ossifying hematoma, giant cell tumor, chondroma, dermoid cyst, foreign body reaction, degenerating fibroxanthoma, metastatic bone formation, and osteoma cutis. We are of the opinion that temporomandibular joint disease should also be considered in differential diagnosis for preauricular pilomatricoma. Conclusion Pediatric dentists should be aware of the condition and consider it in the differential diagnosis of pediatric conditions involving the temporomandibular joint.
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Affiliation(s)
- Poyzan Bozkurt
- Ankara University, Faculty of Dentistry, Oral and Maxillofacial Surgery Department, Emniyet Mahallesi, İncitaş Sokak Yenimahalle, Ankara, Turkey.
| | - Mehmet Eray Kolsuz
- Ankara University, Faculty of Dentistry, Maxillofacial Radiology Department, Emniyet Mahallesi, İncitaş Sokak Yenimahalle, Ankara, Turkey.
| | - Ömer Günhan
- Oral Pathology, Private Practice, Ankara, Turkey.
| | - Erdal Erdem
- Head of Department, Ankara University, Faculty of Dentistry, Oral and Maxillofacial Surgery Department, Emniyet Mahallesi, İncitaş Sokak Yenimahalle, Ankara, Turkey.
| | - Kaan Orhan
- Ankara University, Faculty of Dentistry, Maxillofacial Radiology Department, Emniyet Mahallesi, İncitaş Sokak Yenimahalle, Ankara, Turkey.
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Yeta N, Yeta EN, Önder C, Akkaya M, Günhan Ö. Graphite Tattoo on the Gingiva: A Case Report. Clin Adv Periodontics 2016; 6:140-145. [PMID: 31535469 DOI: 10.1902/cap.2016.150080] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 01/21/2016] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Graphite tattoos may easily be confused with amalgam tattoos and have been reported on infrequently in relevant literature. To the best of the authors' knowledge, this is the first case report in which the incineration method was used for the histopathologic diagnosis of a graphite tattoo on the gingiva. CASE PRESENTATION A 24-year-old female patient was referred to the periodontology department of Ankara University, Ankara, Turkey, for evaluation of an asymptomatic pigmented lesion on the maxillary anterior gingiva. A gray-blackish, irregularly shaped macule was observed on the maxillary anterior attached gingiva between the left central and lateral incisors. Radiographs showed no radiopaque foreign particles or pathologic changes in alveolar bone and related teeth. The pigmented area was removed using an excisional incision. The incineration method was used as a differential diagnosis for the histopathologic examination. There was no additional recurrence of the problem by the end of a 1-year follow-up examination. CONCLUSIONS The diagnosis of pigmented lesions of the oral cavity and gingiva shows different variations. It is not always possible to distinguish a benign pigmented lesion from an early melanoma on the basis of clinical features alone. A biopsy is usually recommended for focal oral pigmented lesions that cannot be explained by local factors. The incineration method can be used for differential diagnosis between melanin and graphite tattoo accumulation because carbon can be eradicated with this method. However, the same cannot be said for melanin.
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Affiliation(s)
- Necmettin Yeta
- Department of Periodontology, Faculty of Dentistry, Ankara University, Ankara, Turkey
| | - Elif Naz Yeta
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Ankara University
| | - Canan Önder
- Department of Periodontology, Faculty of Dentistry, Ankara University, Ankara, Turkey
| | - Murat Akkaya
- Department of Periodontology, Faculty of Dentistry, Ankara University, Ankara, Turkey
| | - Ömer Günhan
- Department of Pathology, Gülhane Military Medical Academy, Ankara, Turkey
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Abstract
Calcifying fibrous tumors are rarely seen and affect mostly children and young adults. A 21-year-old man presented with multiple palpable masses in the area from the right inguinal region to the anteromedial thigh. We performed a diagnostic excisional biopsy. Histopathologically, it was composed of fibroblasts, psammoma bodies, dystrophic calcifications and foci of mononuclear inflammatory cell infiltration in a collagenous dense stroma. We herein reported a case of calcifying fibrous tumor and discussed its clinical and morphological features with regard to the literature.
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Affiliation(s)
- Mehmet Gamsizkan
- Department of Pathology, Gülhane Military Medical Academy, Faculty of Medicine, ANKARA, TURKEY
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Deliorman Orhan D, Hartevioğlu A, Orhan N, Berkkan A, Gökbulut A, Günhan Ö, Pekcan M. Subacute Effects of Standardized F
umaria Vaillantii
Lois. Ethanol Extract on Trace Element Levels, Biochemical and Histopathological Parameters in Experimental Liver Toxicity. J Food Biochem 2015. [DOI: 10.1111/jfbc.12208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Didem Deliorman Orhan
- Department of Pharmacognosy; Faculty of Pharmacy; Gazi University; Etiler Ankara 06330 Turkey
| | - Ali Hartevioğlu
- Department of Pharmacognosy; Faculty of Pharmacy; Gazi University; Etiler Ankara 06330 Turkey
| | - Nilüfer Orhan
- Department of Pharmacognosy; Faculty of Pharmacy; Gazi University; Etiler Ankara 06330 Turkey
| | - Aysel Berkkan
- Department of Analytical Chemistry; Faculty of Pharmacy; Gazi University; Etiler Ankara 06330 Turkey
| | - Alper Gökbulut
- Department of Pharmacognosy; Faculty of Pharmacy; Ankara University; Ankara Turkey
| | - Ömer Günhan
- Department of Pathology; Gülhane Military Medical Academy; Ankara Turkey
| | - Mert Pekcan
- Department of Biochemistry; Faculty of Veterinary Medicine; Ankara University; Ankara Turkey
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Özen T, Kurt MH, Öztürk HP, Özgedik S, Şenel B, Günhan Ö. A Diffuse Leukoplasia Combined with Oral Lichen Planus: A Case Report. Oral Surg Oral Med Oral Pathol Oral Radiol 2015. [DOI: 10.1016/j.oooo.2014.07.436] [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: 10/24/2022]
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Canger EM, Bulut DG, Kütük N, Günhan Ö. Keratocystic Odontogenic Tumor: A Case Report. Oral Surg Oral Med Oral Pathol Oral Radiol 2015. [DOI: 10.1016/j.oooo.2014.07.118] [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: 10/24/2022]
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Coşkun E, Adiloğlu S, Aktaş A, Topaloğlu G, Günhan Ö, Dere A. An Unsual Location of Intraoral Hemangioma: A Case Report. Oral Surg Oral Med Oral Pathol Oral Radiol 2015. [DOI: 10.1016/j.oooo.2014.07.222] [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: 10/24/2022]
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Çiçek AF, Yücel ÖÖ, Aydın Ü, Karakoç Ö, Günhan Ö. Cementoblastoma or Osteosarcoma? A Case Report. Oral Surg Oral Med Oral Pathol Oral Radiol 2015. [DOI: 10.1016/j.oooo.2014.07.431] [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: 11/26/2022]
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Özcan A, Yavan I, Günhan Ö. Expressions of Survivin, E-Cadherin, CD138, and CD38 in Cystic Odontogenic Lesions: A Comparative Study. Oral Surg Oral Med Oral Pathol Oral Radiol 2015. [DOI: 10.1016/j.oooo.2014.07.435] [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: 11/26/2022]
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Sengüven B, Tükel C, Yücel ÖÖ, Günhan Ö. Primary Multinodular Oral Kaposi's Sarcoma: HIV Seronegative Young Patient: Case Report. Oral Surg Oral Med Oral Pathol Oral Radiol 2015. [DOI: 10.1016/j.oooo.2014.07.323] [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: 11/26/2022]
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Sengüven B, Barış E, Ekinci Ö, Korkmaz Y, Günhan Ö, Gültekin SE. PTEN, p53, and Ki67 Expressions in Keratocystic Odontogenic Tumor and Ameloblastoma. Oral Surg Oral Med Oral Pathol Oral Radiol 2015. [DOI: 10.1016/j.oooo.2014.07.416] [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: 10/24/2022]
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Günhan Ö, Dereci Ö. Is Odontoameloblastoma a Real Entity? A Literature Analyis. Oral Surg Oral Med Oral Pathol Oral Radiol 2015. [DOI: 10.1016/j.oooo.2014.07.060] [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: 11/28/2022]
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Yücel ÖÖ, Günhan Ö. Rod-Like Calcifications in Oral Tissues: A Clue for Diagnosis of Specific Entities? Oral Surg Oral Med Oral Pathol Oral Radiol 2015. [DOI: 10.1016/j.oooo.2014.07.434] [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: 11/26/2022]
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Öztürk HP, Kurt MH, Şenel B, Avsever İH, Günhan Ö. Giant Melanocytic Nevus of Oral Mucosa With Gingival Fibramatosis: Case Report. Oral Surg Oral Med Oral Pathol Oral Radiol 2015. [DOI: 10.1016/j.oooo.2014.07.172] [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: 11/25/2022]
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Abstract
OBJECTIVE Cystic ameloblastoma, keratocystic odontogenic tumor, dentigerous cyst, and radicular cyst are the most commonly encountered cystic odontogenic lesions. The aim of this study was to investigate the expressions of survivin, E-cadherin, CD138, and CD38 in these lesions and their potential diagnostic usage. MATERIAL AND METHOD A total of 20 cases, consisting 5 radicular cysts, 5 dentigerous cysts, 5 keratocystic odontogenic tumors and 5 cystic ameloblastomas were included in our series. For all cases, sections from the selected blocks were stained against the antibodies for survivin, E-cadherin, CD138, and CD38 on an automated device. RESULTS All cystic ameloblastomas and keratocystic odontogenic tumors showed diffuse and strong nuclear survivin expression. No specific survivin immunoreactivity was observed in the dentigerous and radicular cysts. E-cadherin expression was stronger in all dentigerous cysts and radicular cysts when compared to others. CD138 expression in stromal cells was prominent in cystic ameloblastomas, but gradually decreased in the other three lesions. All cases were negative for CD38. CONCLUSION In the present study, loss of E-cadherin expression in epithelial cells, strong CD138 expression in stromal cells and strong nuclear survivin expression both in epithelial and stromal cells in cystic ameloblastomas and keratocystic odontogenic tumors were the most remarkable findings. These findings are also reinforced by the studies suggesting their role in the aggressiveness and pathogenesis of these tumors.
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Affiliation(s)
- Ayhan Özcan
- Department of Pathology, Gülhane Military Medical Academy, School of Medicine, ANKARA, TURKEY
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Günhan Ö, Günal A, Avcı A, Kurgan Ş, Dereci Ö, Kurt B, Celasun B. Oral epithelial barrier function and the role of nuclear factor kappa-β pathway in the pathogenesis of aphthous ulceration. Turk J Gastroenterol 2015; 24:508-14. [PMID: 24623290 DOI: 10.4318/tjg.2013.0334] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND/AIMS The normal oral mucosa is usually tolerant to its special microenvironment. Epithelial integrity and a wellmanaged immune system are important in sustaining harmony. A close look at the role played by adaptive immunity during recurrent aphthous ulcerations may throw some light into the pathogenesis. MATERIALS AND METHODS In this report, we provide a concise review of oral epithelial barrier function and present data on the possible pathogenetic mechanism of aphthous ulceration using immunohistocemical signs of nuclear factor kappa beta pathway activation on fourteen cases of mucosal aphthous ulcerations. RESULTS We strongly support the hypothesis that oral aphthous ulcerations develop as a result of loss of epithelial barrier function and that nuclear factor kappa beta signaling pathway seems to be involved in this type of injury. CONCLUSION Interventions that strengthen the mucosal barrier function or modulate inappropriate activation of nuclear factor kappa beta signaling pathway can be considered in the treatment of oral aphthous ulcerations.
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Affiliation(s)
- Ömer Günhan
- Gülhane Military Medical Academy, Department of Pathology, Ankara, Turkey
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Abstract
AIM To report a small intaalveolar ameloblastoma which resembled cystic lesion, and to emphasize the value of Computed tomography (CT) in radiographic examination. BACKGROUND Ameloblastoma is a slow-growing, locally invasive odontogenic neoplasm that accounts for approximately 10% of all tumors detected in the jaws. Radiographically, those tumors are usually well-defined. Computerized tomography is highly recommended to confirm the diagnosis. CASE DESCRIPTION A 48-year-old female attended with a chief complaint of painless swelling in the left anterior of mandible, 1 month duration. In intraoral examination, non-fluctuant, immobile, approximately 1 × 1 cm in dimension, painless, swelling which had a bone-like hardness and located in the mandibular canine region was detected. Panoramic radiography revealed a well circumscribed unilocular radiolucent lesion located in the inter-radicular area of left mandibular lateral and canine teeth. In CT examination it was realized that the lesion was multilocular. Histopathological examination of the biopsy specimen was reported as ameloblastoma. CLINICAL SIGNIFICANCE It is extremely difficult to find such an ameloblastoma in small dimension in alvolar bone.
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Affiliation(s)
- Emin Murat Canger
- Assistant Professor, Department of Oral and Maxillofacial Radiology Faculty of Dentistry, Erciyes University, Kayseri-38039, Turkey Phone: +90 0352 2076666/29228, e-mail:
| | - Peruze Çelenk
- Professor, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Ondokuz Mayis University, Samsun, Turkey
| | - Emel Bulut
- Associate Professor, Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Ondokuz Mayis University, Samsun, Turkey
| | - Ömer Günhan
- Professor, Department of Pathology, Gülhane Military Medical Academy Ankara, Turkey
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Fentoğlu Ö, Günhan M, Kürkçüoğlu I, Gürgan CA, Sezer MT, Günhan Ö. Generalized Aggressive Periodontitis in a Patient With Nephrotic Syndrome Associated With Primary Renal Amyloidosis: A Case Report. Clin Adv Periodontics 2014; 4:226-233. [DOI: 10.1902/cap.2013.110086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Accepted: 03/12/2013] [Indexed: 11/13/2022]
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29
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Erdogan Ö, Keceli O, Öztunc H, Evlice B, Altug HA, Günhan Ö. Compound odontoma involving the four quadrants of the jaws: a case report and review of the literature. Quintessence Int 2014; 45:341-4. [PMID: 24459676 DOI: 10.3290/j.qi.a31331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Odontomas are the most common odontogenic tumors, representing 70% of all odontogenic tumors. They may present in two specific forms; compound odontoma forms multiple small tooth-like structures, while complex odontoma forms an amorphous calcified mass. In this report, we present a 27-year-old male patient with multiple compound odontoma occupied regions at his jaws. The odontomas involve both alveolar and basal processes of the maxilla and mandible as well as both maxillary sinuses. Converse to conventional recommended treatment, which is surgical excision of the lesion, the management was removal of the lesion and clinical-radiologic followup. The first year's follow-up findings are presented in this case report.
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Yücel Ö, Yildirim G, Tosun G, Müge Baka Z, Bedii Göyenç Y, Günhan Ö. Eruption of impacted permanent teeth after treatment of a dentigerous cyst: a case report. J Dent Child (Chic) 2013; 80:92-96. [PMID: 24011298] [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] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Dentigerous cysts are the most common developmental odontogenic cysts. It is a benign and asymptomatic intraosseous lesion that affects the bones of the maxillofacial complex, interfering with tooth eruption. Although enucleation is the treatment of choice, marsupialization is the better option for large cysts involving unerupted permanent teeth. The purpose of this article is to report the eruption of impacted permanent mandibular right canine and first and second premolars after marsupialization of an infected dentigerous cyst. Two years after marsupialization and orthodontic treatment, the cyst disappeared and the canine and premolars erupted uneventfully.
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Tekin U, Tüz HH, Günhan Ö. Reconstruction of a Patient With Rosai-Dorfman Disease Using Ramus Graft and Osseointegrated Implants: A Case Report. J ORAL IMPLANTOL 2012; 38:79-83. [DOI: 10.1563/aaid-joi-d-10-00056.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Umut Tekin
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Kirikkale, Kirikkale, Turkey
| | - Hakan H. Tüz
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Kirikkale, Kirikkale, Turkey
| | - Ömer Günhan
- Department of Pathology, Gulhane Military Medical Academy, Ankara, Turkey
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Etöz OA, Soylu E, Kiliç K, Günhan Ö, Akcay H, Alkan A. A reactive lesion (pyogenic granuloma) associated with dental implant: a case report. J ORAL IMPLANTOL 2012; 39:733-6. [PMID: 22214438 DOI: 10.1563/aaid-joi-d-11-00166] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Osman A Etöz
- 1 Department of Oral and Maxillofacial Surgery, Erciyes University, Melikgazi, Kayseri, Turkey
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Saygun I, Şahin S, Muşabak U, Enhoş Ş, Kubar A, Günhan Ö, Slots J. Human cytomegalovirus in peripheral giant cell granuloma. ACTA ACUST UNITED AC 2009; 24:408-10. [PMID: 19702955 DOI: 10.1111/j.1399-302x.2009.00535.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Keskin A, Genç F, Günhan Ö. Rosai-Dorfman Disease Involving Maxilla: A Case Report. J Oral Maxillofac Surg 2007; 65:2563-8. [DOI: 10.1016/j.joms.2006.10.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2005] [Revised: 03/13/2006] [Accepted: 10/03/2006] [Indexed: 11/24/2022]
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Üçok Ö, Yaman Z, Günhan Ö, Üçok C, Doğan N, Baykul T. Botryoid odontogenic cyst: report of a case with extensive epithelial proliferation. Int J Oral Maxillofac Surg 2006. [DOI: 10.1016/j.ijom.2006.03.002] [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: 11/24/2022]
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36
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Sençimen M, Aydintug Y, Ortakoglu K, Günhan Ö, Günaydin Y. Histomorphometrically analysis of new bones obtained by distraction osteogenesis and periosteal distraction osteogenesis in rabbits. Int J Oral Maxillofac Surg 2005. [DOI: 10.1016/s0901-5027(05)81302-5] [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: 10/24/2022]
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37
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Üçok Ö, Yaman Z, Günhan Ö, Üçok C, Doan N, Baykul T. Botryoid odontogenic cyst: Report of a case with extensive epithelial proliferation. Int J Oral Maxillofac Surg 2005. [DOI: 10.1016/s0901-5027(05)81419-5] [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: 11/24/2022]
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38
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Kaya A, Günhan Ö, Karaçayli Ü, Köymen R, Aydintug Y. DNA ploidy and nuclear morphometry in ameloblastomas. Int J Oral Maxillofac Surg 2005. [DOI: 10.1016/s0901-5027(05)81413-4] [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: 10/24/2022]
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