7 research outputs found

    Florid Cemento-Osseous Dysplasia at the Site of Previous Teeth Extraction: Report of a Case

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    Objective: Florid cemento-osseous dysplasia (FCOD) is a rare bone lesion that predominantly involves the women’s jaws in middle age. This condition is usually asymptomatic and has a benign course.Case: This paper presents a rare case of FCOD in a white middle aged woman, which had affected mandible bilaterally and was diagnosed after tooth extraction and treated conservatively.We believed tooth extraction was a contributing factor for outbreak of such a lesion in this susceptible patient.Conclusion: For the asymptomatic patients, the best management consists of regular recall examinations with prophylaxis and reinforcement of oral hygiene to prevent periodontal diseases and tooth loss, but with accession of clinical signs and symptoms, surgical intervention is inevitable

    Biomechanical Stability of Two Different Maxillofacial Screws in a Rabbit Model

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    Introduction: Internal rigid fixation techniques are commonly used to treat maxillofacial fractures by stabilizing bone segments using titanium plates and screws. The current study aimed to compare the biomechanical stability of two maxillofacial screws with different tip designs in vivo. Materials and Methods: Six male rabbits were randomly divided into two experimental periods of 0 and 4 weeks. Under general anesthesia, the screws were randomly placed in the tibia bone on both sides of each animal. The pullout test was conducted using a Sentam test device. Data were statistically analyzed using ANOVA. Results: The average insertion torque for non-self-tapping and self-tapping screws amounted to 4.2±1.7 and 4.8±1.4 Newton/centimeter, respectively (P-value >0.05). The calculated measures for the pullout test demonstrated a significant increase of secondary stability after 4 weeks in comparison to 0 week (P-value<0.001). However, the results among the two screws showed no statistically significant difference in each time point (P-value >0.05). Conclusion: No significant differences were demonstrated among self-tapping or non-self-tapping maxillofacial screws

    Maxillary Sinusitis due to Dental Infection: A Case Series Study: Odontogenic maxillary sinusitis

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    Introduction: Odontogenic infection is one of the most common causes of maxillary sinusitis which can lead to severe complications like cerebral abscess and orbital cellulitis. This study aims to evaluate the frequency of acute and chronic maxillary sinusitis by odontogenic source in 120 patients. Materials and Methods: One hundred and twenty patients (240 sinuses) were examined by clinical examinations and their sinuses were assessed for the extent of fluid or mucosal thickening in computed tomography (CT) images and water's views. A dental examination has been performed to detect dental involvement and priapical radiography has been obtained to confirm the findings. Combination treatments were performed on five patients with refractory odontogenic sinusitis. Chi-square analysis has been used to identify the correlation between the prevalence of odontogenic sinusitis, age, and gender. Results: Sinus involvement caused by dental origin has been found in 11.2% of the cases. Periapical involvement of maxillary first molar has been the most common cause of sinusitis with dental source (68%). The incidence of chronic apical periodontitis has been significantly higher than the other periapical infections (75% versus 25%). The signs and symptoms of sinusitis in all five cases were eliminated after the combination treatment after four months. Conclusions: Odontogenic sources especially chronic apical periodontitis may lead to inflammation of the maxillary sinus membrane which usually is ignored because of its silent progression

    Evaluation of neo-adjuvant, concurrent and adjuvant chemotherapy in the treatment of head and neck squamous cell carcinoma: a meta-analysis.

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    Squamous cell carcinoma (SCC) is the most common malignancy of the oral cavity. This study aims to evaluate different treatment procedures including neo-adjuvant, concurrent and adjuvant therapy in treating squamous cell carcinoma of the head and neck by a meta-analysis.The authors searched all electronic databases (Medline, Embase and Cochrane) for all the articles published from 1970 to January 2011. Data of the evaluated treatment procedures (chemotherapy or radiotherapy), number of patients, publishing date and the authors' names have all been extracted from the articles and have been categorized in a table.Forty-six researches are included in this study. All three ways show that using chemotherapy after or with radiotherapy improves the vitality rate significantly (p-value< 0.01).It is concluded that after deciding not to perform a surgery for treating SCC, the recommended treatment plan is chemotherapy and radiotherapy simultaneously
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