Background It is necessary for dental students and freshly graduated dentists to apply their education and practice to different clinical and preclinical procedures. The implant success rate and durability are high. Therefore, this study was designed to assess the level of knowledge, awareness and perception of dental students, interns and freshly graduated students regarding dental implant complications in Saudi Arabia. Methods A cross-sectional study design using a web-based method was conducted at different dental institutions in Saudi Arabia from December 2019 to March 2020. Data were collected from all (n = 288) undergraduate students, interns and freshly graduated dentists using a pretested standardized self-administered web-based questionnaire that was prepared and circulated using a template provided by Google Forms (Google, Inc., USA). Descriptive statistics and chi-square tests were performed to analyse the data using SPSS (version 20). Results A total of 288 participants completed the questionnaire, with a response rate of 83.4%. Of the total participants, 37.5% showed a good level of knowledge regarding dental implant procedures, and 38.9% showed the same level of knowledge regarding implant complications. The most important cause of complications associated with dental implants was case selection, which accounted for 54.17%. Most participants (58.33%) chose massive bone loss related to implant failure as the most common late dental complication, while 26.39% chose postoperative infection as the most common early dental complication. In addition, 30.56% of the participants selected screw loosening as the most frequent mechanical complication. However, lack of implant primary stability was the most common hard-tissue implant complication. Based on aesthetic and reversible complications, restorations that were too buccal or too palatal and prosthetic-related, respectively, were the least common dental implant complications. Conclusions The level of knowledge among participants regarding dental implant complications differed among the institutions participating in this study. This difference reflects a significant variation that necessitates reviewing and standardizing dental implant curricula among these institutions.

Aim:The photobiomodulation (PBM) effect of 660 nm diode laser in reducing pain, edema, trismus and promote healing subsequently to the transalveolar extraction of mandibular third molars in female patients taking contraceptive pills were evaluated. Materials and methods: Fifty female patients participated in our study. The 660 nm diode laser was applied immediately on randomly selected patients of the study group (n = 25) over the surgical site for 1 minute with continuous laser beam application. For the control group (n = 25), the same extraction procedure was performed without the application of 660 nm diode laser. Pain intensity, swelling, trismus, and healing was evaluated before extraction and during recall visits 24 hours, 48 hours, and 7 days postoperatively. Results: The values of pain, swelling, and trismus were significantly inferior in the study group compared to the control group (p < 0.05) at T2 and T3; while the values of the healing index were significantly superior in the study group compared to the control group (p < 0.001) at T1, T2, and T3. Conclusion: Using 660 nm diode laser reduced the postsurgical discomforts (pain, edema, and trismus) and promote healing associated following transalveolar extraction of the lower third molar. Clinical significance: To develop a framework based on the results regarding the PBM effect of 660 nm diode laser following transalveolar extraction of lower third molar in a female patient taking oral contraceptive pills, which may help to improve the treatment services provided to the community.

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This work was carried out in collaboration between both authors. Author SS designed the study, performed the statistical analysis, wrote the protocol and wrote the first draft of the manuscript. Author IS corrected the minor change in the second draft. Both authors read and approved the final manuscript.

A 28-year-old female patient came to the outpatient dental clinic for multiple teeth extractions and full mouth rehabilitation suffer from myasthenia gravis (MG) primary presentation as tongue atrophy and facial muscles weakness and the symptoms became worries, the patient unable to speak as well and change her voice and complaining of dysphagia and dysarthria. Oral symptoms, treatment schedule and protocol, the selection, prescription and impacts of medications, and prevention of myasthenic crisis are all important; aspects should be considered by dentists and oral health care providers. Weakness of facial and oropharyngeal muscle is considered very popular at disease onset and therefore oral health providers are often the first medical professionals to observe these patients. Myasthenic patients seek particular approach and consultation in order to ensure ideal and proper dental management.

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Aim:The current study will attempt to throw light on the role of desmoglein 1 and desmoglein 3 in the pathogenesis of erosive lichen planus and their response to topical application of tacrolimus.Materials and methods: Twenty patients with erosive oral lichen planus received tacrolimus ointment three times daily for eight weeks. Assessments using the clinical score and a visual analog scale were recorded at each visit. Serum concentrations of circulating autoantibodies to desmoglein 1 and desmoglein 3 will be determined by enzyme-linked immunosorbent assay (ELISA) at baseline, four weeks and eight weeks after treatment. Statistical software SPSS v.17.0 was used for statistical analysis.Results: All patients showed significant improvement in all outcomes within the follow-up periods when compared with the baseline (p < 0.05). The mean value of the visual analog scale were 8.30 ± 1.49, 4.15 ± 1.14, 2.10 ± 0.91, 0.90 ± 0.79, and 0.0 ± 0.0 starting from baseline to the end of follow up period. The mean value of the clinical score were 4.7 ± 0.48, 2.9 ± 1.29, 1.8 ± 1.32, 1.31 ± 0.69, and 0.69 ± 0.09 starting from baseline to the end of follow-up period. There was a significant decrease in the levels of anti-Dsg1 and anti-Dsg3, during the follow-up period (p ≤ 0.05). Conclusion:The concluded data suggest that antibodies against desmoglein 1 and desmoglein 3 seem to play a key role in the pathogenesis of oral lichen planus. Also, there is a significant decrease in the level of anti-Dsg1 and anti-Dsg3 autoantibodies with topical tacrolimus 0.1% ointment. Clinical significance:Monitoring the serum level of antibodies against keratinocyte cadherins Dsg 1 and Dsg 3 can be used to evaluate the effect of topical application of tacrolimus on Erosive Oral lichen planus.

Background: The squamous odontogenic tumor is characterized as an extremely uncommon amiable neoplasm, beginning from the rests of Malassez, gingival surface epithelium or from remainders of the dental lamina. The squamous odontogenic tumor was first described by Pullon et al. (1975), since that time only 50 cases in the English-language literature in which the microscopic characteristics are frequently very well demonstrated. The characteristic radiographic appearance is that of a triangular shaped unilocular radiolucency associated with the roots of erupted teeth and has a predilection for the anterior maxilla and the posterior mandible. Methods: We reported a case of squamous odontogenic tumor occurring in a 40-year-old female in the premolar are of mandible with common localization and appearance. The tumor underwent surgical excision for histopathological examination and confirming diagnosis, followed by total resection of the tumor and using demineralized freeze-dried bone allograft and collagen membrane to fill defect. Results: Histological examination revealed a proliferation of mature stratified squamous epithelial islands in a dense fibrous connective stroma and the diagnosis of squamous odontogenic tumor was confirmed. Conclusions: Although squamous odontogenic tumor is a rare tuomr which arise from the rest of Malassez, but it should be listed as a differential diagnosis and confirmed with histopathological examination, it should be treated first conservatively, but upon recurrence a more aggressive line of treatment is to be followed.