Libyan Journal of Dentistry <p>The journal was founded in 2017 and its current location is the Faculty of Dentistry, University of Benghazi. The journal publishes the scientific papers biannually and all received papers are sent anonymously(double-blind peer review) to two different reviewers to assure that the material is scientific and qualified for publishing. The Libyan Journal of Dentistry retains the copyright to all materials published in the journal. As an open access journal, we do not charge readers or their institutions for access.</p> en-US Sun, 18 Sep 2022 10:14:25 +0000 OJS 60 Comparative Evaluation of Polarization Colors of Collagen Fibers in Odontogenic Keratocyst and Ameloblastoma Using Picrosirius Red Stain (Histochemical Study) <p><strong>Aims</strong>: studying the quality and quantity of collagen fibers may help to delineate their influence on the aggressiveness and growth potential of the OKC and ameloblastoma. The aims of this study were to evaluate and compare the polarization colors, orientation, and organization of collagen fibers in the connective tissues of the odontogenic keratocyst (OKC), and ameloblastoma (AB) using picrosirius red (PSR) stain under a polarizing microscope with correlation to their biologic behavior.</p> <p><strong>Materials and method: </strong>polarization colors, orientation, and organization of collagen fibers in pre-diagnosed cases of OKC and AB, twenty each, and two control cases of dentigerous cyst (DC) were histochemically analyzed using PSR stain and a polarized light microscope.</p> <p><strong>Results</strong>: comparing the collagen fibers in the two lesions, there was no significant difference with respect to the polarization colors, orientation, and organization.</p> <p><strong>Conclusion</strong>: PSR staining and polarizing microscopy is a powerful tool to appraise the nature and arrangement of collagen fibers in odontogenic lesions. The connective tissue of OKC showed a predominance of green-yellow birefringence, and loosely packed fibers, this can be correlated to the aggressive nature of this lesion.</p> Hawaida M.O Bin Hussain, Azzam A. Sultan Copyright (c) 2022 Libyan Journal of Dentistry Sun, 18 Sep 2022 00:00:00 +0000 Oral Cancer Awareness Among Dental Patients in Benghazi, Libya : A cross- sectional Study <p><strong>Background: </strong>Oral cancer is considered as one of the major public health problems in the coming decades. It is one of the most life-threatening conditions, and it is ranked as the 15<sup>th</sup> most common cancer in the world. Lack of awareness about the etiology, signs and symptoms of oral cancer might be the main causes of its delayed detection. Therefore, evaluation of patient’s awareness towards oral cancer can play an important role in early detection and will lead to better prognosis. The aim of this study is to assess the level of dental patients’ awareness towards oral cancer at Faculty of Dentistry, University of Benghazi.</p> <p><strong>Materials and Methods: </strong>A cross sectional study was conducted on dental patients during the academic year 2018-2019 at Faculty of Dentistry, University of Benghazi. Patients were surveyed for oral cancer awareness by using a pre-tested, self-administered questionnaire. The data was entered and tabulated into a computer using the Statistical Package for Social Science (SPSS Version 20 for Windows, SPSS Inc. Chicago, IL). Data analysis included descriptive&nbsp; statistics.</p> <p><strong>Results:</strong> The response rate was 87.4%. The study popula­tion comprised of 39.3% females and 60.7% males. Low educated patients represented 23.2% of participants. The majority of them (77.1%) have heard about the term of oral cancer with the mass media constitute 38.3% of their information sources. Less than half of patients had the idea that growth of abnormal tissue and continuous pain in jaw are considered as early symptoms of the cancer. Only 23.9% of participates believed that smoking is considered as a risk factor of oral cancer.</p> <p><strong>Conclusion and Recommendation:</strong> There is a lack in the awareness of early signs, symptoms, and etiology of oral cancer. Therefore, an intensive public education program to recognize the early warning signs, symptoms and etiologies of the cancer is recommended. In additions, individuals should be encouraged for self-oral examination and regularly visit the dental clinics. This would play an important role in early recognition of the cancer and better prognosis would be expected.</p> Tufaha F. Awad, Hawwa S. Beaayou, Roba I. EL-Refadi, Ali M. Elmurtadi Copyright (c) 2022 Libyan Journal of Dentistry Sun, 18 Sep 2022 00:00:00 +0000 The Effect of Training Programs on the Performance of Healthcare Workers at Benghazi Medical Center (BMC) <p><strong>Background: </strong>Healthcare workers (HCWs) are considered as one of the cornerstones and play an important role inside the healthcare sector. However, health care workers (HCWs) in developing countries frequently work in challenging environments, mainly dealing with sciences and technology development. Thus, attention to involve the HCWs into training programs to meet their needs and to achieve a better level of work performance and to provide better health services in their institutions.</p> <p><strong>Methods: </strong>A descriptive cross-sectional study, aimed to explore the effects of training programs on healthcare workers performance at Benghazi Medical Center (BMC) in Benghazi city, Libya. 51 questionnaires were collected from March 2019 and end in June 2019 by using the impact of training on workers performance. Data were fed to statistical software package version 20.0 SPSS. Approval of the Ethical Committee of faculty of public health was obtained.</p> <p><strong>Results: </strong>High percentage (72.5%) of the study respondents had undergone training programs with healthcare institutions. The results also show that the majority of these respondents (59.5%) participated in training on the purpose of performance consideration and 75% associate training to their enhanced performance at work.</p> <p><strong>Conclusion: </strong>It may be indicated that training to a big extent can lead to an improved worker's performance but still it is not the only factor that can enhance worker's performance rather it is a combination of factors. Thus, further researches can be done on different factors in the healthcare sector, specifically concerning workers' performance factors such as training needs assessment, training programs design, development, are significant to study for exploring their effects on the workers' performance in the healthcare sector.</p> Randa Mahmoud Gadalla, Amal Ali Mukhtad Copyright (c) 2022 Libyan Journal of Dentistry Sun, 18 Sep 2022 00:00:00 +0000 Prevalence of Impaired Dental Function Among Libyan Elderly Dental Patients: Secondary Data Analysis <p><strong>Background</strong> <strong>and Aim: </strong>This study was aimed to assess the prevalence of partial impairment of dental function among Libyan elderly population.</p> <p><strong>Methods:</strong> Secondary data analysis of previously collected data for a national survey of reasons of tooth extraction among Libyan adults. The data was extracted according to age of the participants (65 years of age or more). Having 20 or less functional teeth was considered as partial impairment of dental functions. Data was analyzed by SPSS version 25 to obtain frequencies and conduct bivariate analysis at p≤0.05.</p> <p><strong>Results: </strong>Of 165 elderly dental patients, the majority of them were males and from urban areas, 19% had 20 functioning teeth or less. The impaired dental function was higher among patients from rural areas and females (p≤0.05). Periodontal diseases and caries were the most common reasons for tooth loss in this group. Small number of participants had restorative treatment for tooth decay.</p> <p><strong>Conclusions:&nbsp; </strong>Partial impairment of dental function was observed in nearly the fifth of study group and appeared to be associated with social and gender differences. More efforts are required to understand this phenomenon and to offer dental care to those in need.</p> R Elmaddani, Muna Farag, Ayman Elatrash, Shkre Agkhre, Warda Magrahi, Hend Elkawash Copyright (c) 2022 Libyan Journal of Dentistry Sun, 18 Sep 2022 00:00:00 +0000 Influence of Different Placement Techniques of Bulk-fill Resin Composite on Microleakage of Class II Cavity Preparation <p><strong>Aim: </strong>To evaluate the microleakage at the gingival seat of the class II cavity restored with bulk-fill resin composite using different placement techniques.</p> <p><strong>Materials and Methods: </strong>Two standardized class II cavities (MO and DO) were prepared in forty sound extracted human premolars. The cervical margin of the proximal box is located at 1 mm occlusal to the cementoenamel junction (CEJ). The prepared teeth were divided into four groups of 10 teeth each (n=20 cavities) and restored with Tetric N-Bond total-etch adhesive, followed by resin composite, Tetric N-Ceram Bulk-fill placed in four different techniques: GpI; as bulk-fill in a single increment, GpII; horizontal layering, GpIII; oblique (wedge-shaped) layering, GpIV; vertical layering. All restored teeth were stored in distilled water for 24h at 37ºC, thermocycled, and then soaked in 2% methylene blue dye for 24h. Teeth were then sectioned for microleakage evaluation using a stereomicroscope. Data were collected and statistically analyzed. Two specimens from each group were selected at random and examined under a scanning electron microscope (SEM) for marginal adaptation of restoration.</p> <p><strong>Results</strong>: No statistically significant differences in the microleakage score were observed between the four placement techniques (P=0.610). However, bulk placement had the highest mean and median score (3.0 ±1.45&amp;4). The horizontal, oblique, and vertical techniques had lower scores than bulk placement (2.30±1.81, 2.6±1.66, 2.45±1.61) respectively.</p> <p><strong>Conclusions: </strong>Microleakage could not be eliminated by any of the tested placement techniques. Incremental placement techniques showed a lower score of microleakage compared with the bulk placement. The horizontal layering of bulk-fill composite showed the best results in terms of the marginal seal with tooth structure.</p> Nagat Bubteina, Manal I. Faraj, Naeima M. Betamar Copyright (c) 2022 Libyan Journal of Dentistry Sun, 18 Sep 2022 00:00:00 +0000 Primary Malignant Tumors of Oral and Maxillofacial Region in Libyan Population: A single institution experience of 171 cases <p><strong>background</strong>: Globally, a significantly high rate of mortality was caused by oral cancer; however, epidemiological data of oral cancer is still scanty, particularly in Arab countries. This retrospective study was designed to provide a systematic analysis of the histological subtypes of oral and maxillofacial malignant neoplasms in Libyan population during two decades, and to compare the results with previous reports from Libya and other countries.</p> <p><strong>Method: </strong>data were gathered using patients medical record and biopsy files, and the histological slides were revaluated. The tumors were classified according WHO criteria (2017).&nbsp;</p> <p><strong>Results: </strong>Carcinoma was found in 145 patients, forming (84.7%) of all the malignant oral and maxillofacial neoplasms, followed by lymphoma and sarcoma (6.4%), and neural crest cell tumours (2.3%). Males were more affected than females at a ratio of 1.3:1. Most of the patients (70.8%) were above the age of 40 with a mean age of 51.7years old at the time of the diagnosis. Only 1% of the malignant neoplasms were odontogenic in origin. Squamous cell carcinoma (67.5%) was the most common epithelial neoplasm, followed by mucoepidermoid carcinoma (9.7%) and adenoid cystic carcinoma (4.1%). The tongue was the most common site for squamous cell carcinoma (41.1%), followed by buccal mucosa (16.8%).</p> <p><strong>Conclusion: </strong>compared to previous reports from eastern and some western countries; the prevalence of malignant neoplasms of oral and maxillofacial region in Libyan populations is considerably low.</p> Ghada H Haroun, Asma M Ali Mussa, Hend M Salama, Amna S Elgehani Copyright (c) 2022 Libyan Journal of Dentistry Sun, 18 Sep 2022 00:00:00 +0000