Firat Selvi

Istanbul University · Department of Oral and Maxillofacial Surgery

Purpose The purpose of our study is to analyze what factors influence the cost of orthognathic surgery performed within the US. Study Design This retrospective cohort study was completed using the Kids’ Inpatient Database (KID) from 2000 to 2012 on all patients aged 14-20 years who had undergone orthognathic surgery. There predictor variables incl...

The pathogenesis of hereditary gingival fibromatosis (HGF) is largely unknown; however, the removal of excess tissue may often be necessary as it often causes aesthetic and functional problems. Gingivectomy is usually a treatment option that can be performed using a scalpel, cryotherapy, electrosurgery, or laser. This paper aims to evaluate the res...

Study Design The authors designed a 20-year cross-sectional study using the National Electronic Injury Surveillance System (NEISS) database. Objective The purpose of the study is to determine the risk factors for hospital admission among individuals who suffer head and neck injuries secondary to trampoline use. Methods The primary predictor varia...

Background/aim: The head and face are prone to injury in bicycle accidents and helmets are proven to be helpful in decreasing injuries to some extent. The aim of this study was to determine whether certain craniomaxillofacial regions are at increased risk of injury (fracture) during bicycle accidents among helmeted cyclists. Materials and methods...

Study Design A retrospective cohort study was conducted using the Kids’ Inpatient Database from 2000 to 2014. Subjects were included if they were 18 years and younger and suffered any type of facial fracture. Objective The purpose this study was to determine the risk factors for incurring panfacial fractures among the pediatric population. Method...

Purpose Le Fort III fractures are the most severe subtype of the Le Fort fractures and is associated with adverse clinical outcomes. The purpose of this study was to identify risk factors for mortality among patients who suffer Le Fort III fractures. Materials and methods A retrospective cohort study was completed using the 2016-2018 National Inpa...

Background/aim: It is not known whether the mechanism of facial trauma influences the associated length of hospitalization. The aim of this study was to determine whether the mechanism of injury influenced the length of hospital stay (LOS) among pediatric patients who sustained facial fractures. Materials and methods: This retrospective cohort s...

Purpose: The purpose of the present study is to compare the characteristics of dog bite wounds to the face and that of the rest of the body in the United States among the pediatric population and determine independent risk factors for dog bite wounds to the face. Methods: A retrospective cohort study was conducted using the Kids' Inpatient Datab...

Purpose The purpose of this study was to determine which factors are associated with increased hospital charges and length of stay among pediatric patients who incurred dog bites to the face. Materials and methods The following 12-year retrospective study was conducted using the Kids’ Inpatient Database (KID). We selected all cases of dog bites to...

This study aimed to investigate the effects of the different dental implant neck designs, diameters, and inclinations, on the stress distributions at the mandibular crestal bone and implant-abutment complex, using three-dimensional (3D) finite element stress analysis (FEA) method. Finite element models of three-unit fixed partial dentures supported...

Purpose Benign fibro-osseous lesions (BFOLs) are heterogeneous intraosseous dis- ease processes sharing overlapping histopathologic features and demonstrate a wide range of biological behavior. The aim of this study is to highlight the importance of clinical and radiological findings for the definitive histopathologic diagnosis of benign fibro-osse...

Objective: To characterize the presentation and symptomatology of individuals presenting with pain in head and neck regions. Methods: A retrospective chart-review was performed on patients with pain in the HFN presenting to a tertiary pain center in Turkey between January 2016 and January 2017. Information regarding the characteristics of pain and...

The purpose of this study was to provide a United States perspective on alloplastic total joint replacement. We sought to estimate the inpatient burden and report the most common adverse events using two administrative datasets. The National Inpatient Sample was queried from October 2015 to December 2016 for total joint replacement admissions using...

Purpose: The aim of this retrospective study was to investigate the characteristics of cemento-osseous dysplasia (COD) lesions for devising a clinical algorithm to help management decisions, specifically discussing the need for a possible surgical intervention versus solely follow-up. Materials and Methods: One hundred thirty five subjects were thu...

Objective The aim of this study was to answer the following clinical question: “In patients admitted to a tertiary care hospital with a diagnosis of brain abscess, how common is odontogenic etiology?” Study Design We designed a retrospective study of patients with brain abscesses diagnosed at the Massachusetts General Hospital between 1980 and 201...

Aim: The aim of the present study was to analyze the comparative effectiveness of the diode lasers having 3 different wave-lengths (810nm, 940nm, 980nm) and also the different application modes on the cellular basis in animal models.Many surgical instruments like scalpel, electrosurgery, and different laser types can be used for surgical incisions....

Objectives The role of oral bacteria in the etiopathogenesis of odontogenic cysts (OC) is controversial. Immune response is regulated by the cytokines secreted during infection. This study aims to describe the association in between bacteria and levels of cytokines in OC. Methods Infected OC fluid samples were obtained from 25 odontogenic keratocy...

To find out whether the angulation of mandibular third molars is associated with the thickness of the bone at the site of impaction, and if so, which particular angulation affects the protective mechanism of the nerve, we retrospectively studied the thickness of lingual bone at the sites of impaction of 200 mandibular third molars in 149 patients u...

Relapsing polychondritis (RP) is a rare, multisystem autoimmune disease characterized by inflammation, structural damage, and impaired function of cartilaginous tissues throughout the body. In the craniofacial region, this rare disease has been reported to affect structures of the ear and nose; however, reports of temporomandibular joint (TMJ) invo...

Oral cavity metastasis of malignant tumors is extremely rare and accounts for only 1% of all malignant oral tumors. Renal cell carcinoma (RCC) can metastasize to any part of the body, with a 15% risk of metastasis to the head and neck region when the disease is disseminated and a 1% risk when it is not. RCC is also the third most common infraclavic...

Purpose: The purpose of this study was to investigate the healing differences in between four different widely used suture materials in the oral surgery practice, including silk (Perma- Hand; Ethicon, INC., Somerville, NJ, USA), polypropylene (Prolene; Ethicon, INC., Somerville, NJ, USA), coated polyglactin 910 (Ethicon, INC., Somerville, NJ, USA)....

A retrospective cohort study was performed to evaluate the use of panoramic radiographs as a screening tool for low bone mass in postmenopausal women. Female subjects aged ≥50 years were included. The predictor variables were gonial angle, antegonial angle, mandibular cortical bone integrity, periodontal disease status, and number of remaining teet...

Purpose: Odontogenic cysts (OCs) are pathological lesions that include liquid or semi-liquid surrounded with epithelium. Radicular cysts’ (RCs) and odontogenic keratocysts’ (OKCs) are common odontogenic cysts of jaws, and may reach to a substantial size without symptoms for a long time. It is known that cytokines secreted during infection and infla...

The propose of this article was to evaluate the risk factors associated with the survival rate of the dental implants. This retrospective study evaluated the survival rate of 940 implants placed at the Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Istanbul University, from January 2003 to January 2011. The potential risk facto...

Our aim was to answer the question: "Among patients at high risk of injury to the inferior alveolar nerve (IAN) after removal of 3rd molars, what factors are associated with postoperative neurosensory deficits?" We organized a retrospective, two-center study and enrolled a group of subjects who were at increased risk of injury to the IAN after remo...

The diagnosis metal foreign bodies of maxillary sinus cannot be usually made in an acute setting and patients may present with chronic symptoms due to drainage and chronic irritation of the mucosa years later. Metal foreign bodies can be generally displaced to the maxillary sinus at the time of dental intervention. In this article, we report a very...

The purpose of the present study was to investigate the possible role of Ki-67 and argyrophilic nucleolar organizing regions (AgNOR) between the recurrent and nonrecurrent keratocystic odontogenic tumors (KCOTs). Another aim was to compare the correlation between these two markers. 22 KCOTs were evaluated retrospectively. The actual proliferative a...

Osteotomies, performed by rotational instruments, can cause temperature rise on the bone and elevated temperature can disrupt the bone healing. When the osteotomies are performed for the insertion of miniscrews, the bone healing disruption may cause stability loosening or failures. Saline irrigation is mostly used for the prevention of the heat gen...

Odontogenic cysts are slow growing lesions which are formed by epithelium. They may reach to a substantial size without symptoms for a long time. Radicular cysts' (RCs) and odontogenic keratocysts' (OKCs) are common odontogenic cysts of jaws. The main purpose of this study is to evaluate if anaerobic bacteria play a role in the pathogenesis of the...

The removal of an impacted maxillary third molar is an easy procedure for an oral and maxillofacial surgeon. The most commonly seen complications associated with this type of surgery are excessive hemorrhage, infection, pain, swelling, trismus, and root fractures. Although rarely encountered, unexpected complications may also arise during this proc...

ABOUT DENTAL IMPLANTS THAT THE PATIENT WHO USE / HAVE USED / USING BISPHOSPHONATES

Facial-nerve paralysis is seldom seen and may occur because of a broad spectrum of causes. The most commonly seen cause of facial paralysis is the Bell palsy; iatrogenic causes and tumors are relatively rare. Facial asymmetry, drooling, garbled speech, and difficulty in feeding: all adversely affect the psychosocial conditions of the patients. Fasc...

The dentigerous cyst is a developmental odontogenic cyst, accounting for 10% of all cysts of the jaws. The treatment options are decompression, marsupialization, or enucleation regarding the features of the lesions. In this article, a case of a 17-year-old adolescent girl having a large mandibular dentigerous cyst associated with an unerupted third...

Polymethylmethacrylate bone cements have been widely used in orthopedic surgery as well as in maxillofacial area. Despite the advantages, it is well known that acrylic bone cements may cause bone or soft tissue necrosis because of the properties of its components and polymerization. This clinical report presents an extensive necrosis of the mandibl...

Intraosseous lipoma is a benign tumor of the bone. It is mostly seen in the metaphyses of the long bones and calcaneus. There are few documented cases of intraosseous lipomas in the jaw. Clinically, the lesion is usually silent and radiologically it appears as a radiolucent area rarely including some radio-opacities. Diagnosis is based on clinical,...

Hyperparathyroidism is nowadays diagnosed early and asymptomatically with the improvements in routine biochemical tests and radiological procedures. The late bony complications of the disease have therefore started to decline rapidly. Brown tumours are one of the bony complications of hyperparathyroidism. The mandible is the predominantly affected...

Foreign bodies may be displaced into the maxillary sinus as a result of trauma or during dental interventions. They commonly cause chronic sinusitis and/or fungal infections. This paper presents the case of a foreign body lodged in the right maxillary sinus ostium of a 31-year-old female patient. The foreign body was observed incidentally during ra...

The authors surveyed dentists in Istanbul, Turkey to determine the modes they were using to access current professional information. A questionnaire was sent to 379 privately practicing dentists. The response rate was 35 percent. Privately practicing dentists frequently preferred to use traditional methods, such as discussions with colleagues, text...