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Abstract : Cross-infection in dentistry is a problem that unfortunately occurs in many ways, and mobile phones have rightly been cited as the cause of several cross-infections. This study aimed to assess the effec-tiveness of CaviWipes™ in disinfecting contaminated mobile phones among dental students during their clinical training, at Tishreen University, Syria. Samples were taken from 150 students' mobile phones with sterile cotton swabs. Two swabs were taken, the first one before and the second after wiping the devices with CaviWipes™. All samples were cultured directly on Nutrient agar (Merck, Germany), Blood agar (Merck, Germany), Eosin Methylene Blue (EMB) (Merck, Germany). Gram staining, morphology of bacteria, catalase reaction and oxidase reaction were used to identify the collected microorganisms. Data were statistically analyzed using Paired t-test. The study showed that microbial growth was 100% in all samples from cellular phones, and a significant difference was found between Colony Forming Units (CFU) before and after wiping the devices with CaviWipes™ (P<0.05). CaviWipes™ were 96.5% effective in reducing bacterial growth. Among the detected bac-teria, only gram-spore forming bacilli were resistant to CaviWipes™. Within the limitations of the present study, it appears that the use of CaviWipes™ as a disinfectant could reduce bacterial growth on dental students' phones significantly.

Abstract : There has been an increase in the occurrence of cavities in preschoolers and a rise in therapeutic rather than preventive dental procedures in children. More than the child, it is the influence of the parents that will determine the future of their children's oral health. Therefore, this study aimed to evaluate oral hygiene awareness among parents. A structured questionnaire was given out to 1000 randomly selected parents of children aged between 1-6 years old, visiting the Department of Pediatric Dentistry, College Dentistry, Damascus University, Damascus, Syria between September 2021 and January 2023. Their responses were recorded manually. The questionnaire had questions regarding brushing, rinsing, toothpaste, visiting the dentist, etc. After surveying the parents, it could be analyzed that toothbrush is the most method used for oral hygiene maintenance (83.5%), and 9.8% of the parents believe that the time that oral hygiene maintenance start with the eruption of the first primary tooth. From the study, it was concluded that 32% of the parents supervise the brushing of their child's teeth until the age of 4 Years, but 55.6% of them brush their children's teeth once a day, and the largest percentage brush for 1-2 minutes (52.9%). According to the survey, the parents of children aged between 1-6 years old had no adequate knowledge regarding the oral hygiene of their children.

Abstract : This study aimed to evaluate changes of dental arch dimensions resulted by maxillary total arch distalization using the casted palatal plate versus buccal miniscrews. In course of an evaluating of skeletal and dentoalveolar changes after maxillary total arch distalization, cast models of 40 adult patients (7 males and 33 females; average age 20 ± 3.1 years) with class II occlusal relationships were analyzed. Patients were divided according to the anchorage appliance into two equal groups; in the first group (n=20), patients received the newly developed casted palatal plate, while in the second group (n =20), buccal miniscrews were applied. Occlusal changes (overjet, overbite and severity of class II molar and canine relationships), anterior upper arch length, arch widths and palatal height, in addition to molars rotation were measured. Total arch distalization resulted in a significant correction of class II relationships and reduction of overjet in both groups. The interpremolar and intermolar widths increased significantly (3.03 and 4.23 mm, respectively in the miniscrews group, 1.73 and 1.63 mm, respectively in the plate group). The intercanine width increased in the miniscrews group (by 1.70 mm), while it did not change in the plate group. The mesial buccal cusps of molars showed a significant distobuccal rotation. Total arch distalization using each of the casted plate and buccal miniscrews as skeletal anchorage appliances can be an effective non-extraction treatment modality for the correction of class II malocclusion. However, larger amount of upper arch expansion can be associated with the application of buccal miniscrews.

Abstract : Many diseases and syndromes are associated with oral manifestations, as in the case of lymphoma. This study aimed to investigate the oral manifestations of Hodgkin's lymphoma patients at Tishreen University Hospital. This study included 230 patients with Hodgkin’s lymphoma attending Tishreen University Hospital in Lattakia from September 2019 to September 2022 and 230 healthy patients. The patients were selected based on clinical findings and study conditions. The study objectives and work procedures were explained, and written informed consent was obtained from all patients who participated in the study. The swelling within the oral cavity, taste changes, and opportunistic infections were recorded. Data were analyzed with the chi-square test. The incidence of swelling inside the oral cavity was 15.2%, and 0% in the experimental and control group respectively with a statistically significant difference (p=0.002). The incidence of changes in taste was 17.8%, and 7.4% in the experimental and control group respectively with a statistically significant difference (p=0.002). The incidence of opportunistic infections was 38.7%, and 17.8% in the experimental and control group respectively with a statistically significant difference (p=0.000). Swelling inside the oral cavity, changes in taste, and opportunistic infections can be considered oral manifestations associated with Hodgkin's lymphoma.

Abstract : This randomized controlled clinical trial is aimed to evaluate the clinical performance of high viscosity bulk fill resin composite and compomer in the restoration of second mandibular primary molars compared to conventional incremental resin composite. The studied sample consisted of 60 second mandibular primary molars in 59 children aged between 5-8 years, these cases were allocated randomly into three groups: Group 1 (experimental, n=20): High Viscosity Bulk Fill Resin composite (HVBFC), Group 1 (experimental, n=20): Compomer, and Group 2 (control n=20): Conventional Incremental Resin composite (CIC). Post-treatment clinical follow-ups were conducted during 3, 6, and 12 months using Modified United States Primary Healthcare Service (USPHS) criteria. Data were analyzed using Kruskal- Wallis test. The clinical success rate reached 100%, 95%, and 95% in HVBFC, Compomer, and TIC groups respectively. Statistical analysis revealed no statistically significant differences among HVBFC, Compomer, and TIC groups in overall clinical evaluation (P-value= 0.375). Bulk fill resin composite, compomer, and conventional resin composite restorations showed satisfactory clinical performance in primary molars during the 12-month follow-up period.