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Dental Research Journal

Jahanshah Salehinejad, Mahdi Gholami, Majid Eshghpour, Tahere Mehri
Adenoid ameloblastoma with dentinoid is a rare odontogenic tumor. Granular cell ameloblastoma also is a less common histological subtype of ameloblastoma. In this report, the patient was a 31-year-old male. The lesion was located in the right mandible and was unicystic with well-defined borders. The tumor tissue was showing a combination of follicular, plexiform, and desmoplastic patterns of ameloblastoma with wide areas of granular cells, fibrous stroma, glandular pattern, and dentinoid calcified. Very few cases of distinct forms of ameloblastoma that show the formation of dentinoid has been reported...
July 2016: Dental Research Journal
Korosh Roshanghias, Andre Peisker, Jörg Olaf Zieron
Wisdom tooth operations are sometimes accompanied by complications. This case report shows complications during upper jaw third molar removal. Expectable problems during oral surgery should be planned to be solved in advance. Displacement of the third molar during oral surgeries as a considerable complication is rarely discussed scientifically. A good design of flap, adequate power for extraction, and clear view on the surgical field are crucial. Three-dimensional radiographic diagnostics in terms of cone beam computed tomography is helpful after tooth displacement into the infratemporal fossa...
July 2016: Dental Research Journal
Mostafa Abtahi, Neda Eslami, Reza Zare Mahmoud Abadi, Saber Pooria Rezaei
BACKGROUND: There is no conclusive evidence on the effect of orthodontic force application on dental pulp tissue. The aim of this study was to compare early and delayed histological effects of intrusive forces on dental pulp of adolescents and adults. MATERIALS AND METHODS: Patients referred to the Department of Orthodontics of Mashhad University of Medical Sciences participated in this study. They were assigned to adult (25-32-year-old) and adolescent (13-18-year-old) Groups...
July 2016: Dental Research Journal
Nahid M Akhlaghi, Fatemeh Mashadi Abbas, Mostafa Mohammadi, Mohammad Reza Karami Shamloo, Orkideh Radmehr, Ramin Kaviani, Vahid Rakhshan
BACKGROUND: Root morphology is of utmost importance to endodontic sciences. Since there are a few studies on the morphology of mandibular second molars' roots, and some anatomical variables are not evaluated before, the aim of this study was to investigate thoroughly radicular anatomy of this tooth. MATERIALS AND METHODS: This ex vivo study was performed on 150 intact mandibular second molars. After access cavity preparation and ensuring canal patency, Indian ink was injected into root canals from the orifices...
July 2016: Dental Research Journal
Bahareh Nazemi Salman, Surena Vahabi, Alireza Biglari, Simindokht Salavitabar, Maryam Hassani Doabsari
BACKGROUND: Periodontal disease has a multifactorial etiology. A combination of microbial agents and environmental, habitual, systemic, and genetic risk factors is responsible for the development of periodontal disease. Host immune response causes the destruction of tooth-supporting structure and eventual tooth loss. This study aimed to assess the correlation of interleukin 6 (IL-6) -174-GC and IL-6-572-GC gene polymorphisms with periodontal disease in an Iranian population. MATERIALS AND METHODS: This case-control analytical study was conducted on 129 subjects presenting to the laboratory of Taleghani Hospital...
July 2016: Dental Research Journal
Mohammed Sultan Al-Darwish
BACKGROUND: The aim of this study was to assess the oral health knowledge behaviour and practices among school children in Qatar. MATERIALS AND METHODS: A cross-sectional study was carried out in Qatar from October 2011 to April 2012. A total of 2200 school children aged 12-14 years were approached from 16 schools of different areas. The information about oral health knowledge and sources of information was obtained through a self-administrated questionnaire. Data analyses were performed...
July 2016: Dental Research Journal
A R Senthil Eagappan, V Arun Prasad Rao, S Sujatha, D Senthil, J Sathiyajeeva, G Rajaraman
BACKGROUND: Nitric oxide (NO), a highly reactive radical, participates in the nonspecific natural defense mechanism of the oral cavity. The present study was attempted to evaluate the salivary NO levels in 4-5 year-old children with early childhood caries (ECC). The objective of the present study was to assess the salivary NO concentration in children with different caries activity. MATERIALS AND METHODS: The study included 120 healthy 4.5 year-old children and they were equally divided into three groups based on decayed, missing, filled surfaces (dmfs) score; forty caries-free children (control group), forty children with dmfs 1...
July 2016: Dental Research Journal
Mohammad Tavakoli, Mozhgan Izadi, Jaber Yaghini, Abdolah Rastegari, Ahmad Moghareh Abed
BACKGROUND: The metabolic syndrome and periodontitis coincide with systemic inflammation and glucose tolerance disorder, which indicate the common pathophysiologic pathway of these diseases. The main goal of this study was to determine the effects of the metabolic syndrome on the periodontal indices of hemodialysis (HD) patient. MATERIALS AND METHODS: In this descriptive-analytical study, 75 persons were selected by the simple method, 50 of them were HD patients, and 25 of them were healthy people...
July 2016: Dental Research Journal
Ava Vali Sichani, Shahrzad Javadinejad, Roshanak Ghafari
BACKGROUND: Direct observation cannot detect caries under restorations; therefore, the aim of this study was to compare the accuracy of radiographs and DIAGNOdent in detecting caries under restorations in primary teeth using histologic evaluation. MATERIALS AND METHODS: A total of 74 previously extracted primary molars (37 with occlusal caries and 37 without caries) were used. Class 1 cavity preparations were made on each tooth by a single clinician and then the preparations were filled with composite resin...
July 2016: Dental Research Journal
Farrokh Farhadi, Mohammad Razavi Ruhani, Ali Zarandi
BACKGROUND: The purpose of this study was to investigate of radiographic pattern and relative frequency of idiopathic osteosclerosis (IO) and condensing osteitis (CO) in panoramic radiographs. MATERIALS AND METHODS: Totally 411 panoramic radiographies were randomly selected from patients referred to Radiology Department of Faculty of Dentistry, Tabriz University of Medical Sciences. Descriptive characteristics of radiopacities, including shape, border, localization, and dental relationship, were recorded...
July 2016: Dental Research Journal
Zahra Dalili Kajan, Ali Khalighi Sigaroudi, Majedeh Mohebbi
BACKGROUND: Tonsilloliths are calcified concretions that develop in tonsillar crypts. They are usually small and asymptomatic, so they are found accidentally during routine dental radiogrphy procedure. Large tonsilloliths can occur with clinical signs and symptoms. The purpose of this study was to evaluate the prevalence and patterns of palatine and adenoid tonsilloliths in cone-beam computed tomography (CBCT) images. MATERIALS AND METHODS: In this cross-sectional study, 0...
July 2016: Dental Research Journal
Chandresh Shukla, Raj Kumar Maurya, Vinod Singh, Manisha Tijare
BACKGROUND: Orthodontic therapy has oral ecological changes causing increased numbers of mutans streptococci in saliva and plaque. The purpose of this study was to estimate counts and colonization pattern of Streptococcus mutans after application of fixed orthodontic appliances. MATERIALS AND METHODS: Plaque samples of randomly selected sixty patients were collected before placement of orthodontic appliances from buccal and labial aspects of the anterior teeth and four first molars and readings were recorded as T0...
July 2016: Dental Research Journal
Mohammad Reza Jahanbakhshi, Ali Mohammad Kalantar Motamedi, Masoud Feizbakhsh, Ahmad Mogharehabed
BACKGROUND: Selective alveolar corticotomy is defined as an intentional injury to cortical bone. This technique is an effective means of accelerating orthodontic tooth movement. The aim of this study is to evaluate the effect of buccal corticotomy in accelerating maxillary canine retraction. MATERIALS AND METHODS: The sample in this clinical trial study consisted of 15 adult female patients with therapeutic need for extraction of maxillary first premolars and maximum canine retraction...
July 2016: Dental Research Journal
Udaya Kumar Palaniswamy, Neha Prashar, Mamta Kaushik, Surender Ram Lakkam, Shikha Arya, Swetha Pebbeti
BACKGROUND: This study was done to evaluate remineralizing potential of bioactive glasses (BAGs) and amorphous calcium phosphate-casein phosphopeptide (ACP-CPP) on early enamel lesion. MATERIALS AND METHODS: Twenty freshly extracted mandibular premolars were sectioned sagittally. The buccal half was impregnated in acrylic resin blocks and treated with 37% phosphoric acid in liquid form, to demineralize enamel surface to simulate early enamel lesion. The samples were divided into two groups...
July 2016: Dental Research Journal
Sumanth Babu, Shaurya Manjunath, Mayuri Vajawat
Mandibular discontinuity defects following a segmental mandibulectomy defects present a major challenge to the rehabilitation team. With no immediate intervention to rehabilitate the patient, definitive mandibular guidance prostheses with a metal guiding flange and acrylic teeth on the resected side can be used successfully to stabilize the occlusion and correct the deviation. The present case report describes the prosthodontic rehabilitation of a patient with a segmental mandibulectomy using a mandibular prosthesis with a metal guide flange and a maxillary stabilizing metal framework...
May 2016: Dental Research Journal
S G Damle, Hiteshwar Bhattal, Dhanashree Damle, Abhishek Dhindsa, Ashish Loomba, Sumit Singla
BACKGROUND: To evaluate and compare the efficacy of mineral trioxide aggregate (MTA) and traditionally used calcium hydroxide (Ca(OH)2) in inducing root end formation of immature roots of traumatized young permanent anterior teeth. MATERIALS AND METHODS: The study was carried out on 22 nonvital, immature permanent maxillary incisors. Samples were allotted into two groups - Group I MTA and Group II Ca(OH)2 Success rate was determined based upon the time duration required for apical barrier formation...
May 2016: Dental Research Journal
Saeed Soheilipour, Fatemeh Soheilipour, Fatemeh Derakhshandeh, Hedieh Hashemi, Mehrdad Memarzadeh, Hamid Salehiniya, Fahimeh Soheilipour
BACKGROUND: Due to numerous difficulties in patients suffering from varieties of cleft lip and palate, their therapeutic management involves interdisciplinary teamwork. This study was conducted to compare the age of commencing treatments such as speech therapy, secondary palate and alveolar bone grafting and orthodontics between those who sought treatment early and late. MATERIALS AND METHODS: In this retrospective study, 260 files of patients with cleft lip and palate based on their age at the time of admission to a cleft care team were divided into two groups: The early admission and late admission...
May 2016: Dental Research Journal
Ali Bagherian, Mahmood Sheikhfathollahi
BACKGROUND: Topical anesthesia has been widely advocated as an important component of atraumatic administration of intraoral local anesthesia. The aim of this study was to use direct observation of children's behavioral pain reactions during local anesthetic injection using cotton-roll vibration method compared with routine topical anesthesia. MATERIALS AND METHODS: Forty-eight children participated in this randomized controlled clinical trial. They received two separate inferior alveolar nerve block or primary maxillary molar infiltration injections on contralateral sides of the jaws by both cotton-roll vibration (a combination of topical anesthesia gel, cotton roll, and vibration for physical distraction) and control (routine topical anesthesia) methods...
May 2016: Dental Research Journal
Hamid Kermanshah, Esmail Yasini, Razieh Hoseinifar
BACKGROUND: There are many concerns regarding the marginal seal of composite restorations, especially when composite restorations are subjected to cyclic loading. The aim of this study was to evaluate the effect of cyclic loading on the microleakage of silorane based composite compared with low shrinkage methacrylate-based composites in class V cavities. MATERIALS AND METHODS: In this in vitro study, class V cavities were prepared on the facial and lingual surfaces of 48 human premolars (96 cavities)...
May 2016: Dental Research Journal
Bhavana Gupta, Shaleen Chandra, Anil Singh, Kunal Sah, Vineet Raj, Vivek Gupta
BACKGROUND: Vascular endothelial growth factor (VEGF) is capable of initiating angiogenesis in blood vessels and may act as mitogenic agent for epithelium of odontogenic cysts and tumors. This study was conducted to evaluate the role of epithelial VEGF expression in odontogenic cysts and ameloblastoma and its correlation with argyrophilic nucleolar organizer region counts to assess its role in their biological behavior. MATERIALS AND METHODS: In this retrospective cross-sectional study, 45 histologically confirmed cases, 15 cases of each of keratocystic odontogenic tumors (KCOTs), dentigerous cysts, and ameloblastomas were examined for immunohistochemical expression for epithelial VEGF, and argyrophilic nucleolar organizer regions (AgNORs) (used as secondary marker in this study) staining was done for comparing the proliferative capacity with VEGF...
May 2016: Dental Research Journal
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