Cairo University, Faculty of DentistryAdvanced Dental Journal2636-302X2220200401Prevalence of Burning Mouth Syndrome in A sample of Egyptian Patients with Diabetic Neuropathy: A Cross Sectional Hospital-Based Study34427236210.21608/adjc.2020.23213.1050ENAlaaNadaDepartment of Oral Medicine and Periodontology, Faculty of Dentistry, Cairo University, Egypt.WesamAbdel MoneimDepartment of Oral Medicine and Periodontology, Faculty of Dentistry, Cairo University, Egypt.MariumFakhrDepartment of Oral Medicine and Periodontology, Faculty of Dentistry, Cairo University, Egypt.ShereenEl SawyDepartment of Internal Medicine and Endocrinology Faculty of Medicine, Cairo UniversityJournal Article20200130<strong>Background:</strong> Diabetes Mellitus is one of the systemic causes of secondary burning mouth syndrome. Burning sensation in diabetic patients has been attributed to poor glycemic control and regional neuropathy. Diabetic peripheral neuropathy is the most common microvascular chronic complication of diabetes, affecting almost half of the diabetic population<strong>. </strong><br /> <strong>Aim:</strong> To assess the frequency of burning mouth syndrome in type 2 diabetic patients with peripheral neuropathy.<br /> <strong>Methods:</strong> A total number of 250 patients with type 2 diabetes mellitus diagnosed clinically with peripheral neuropathy were recruited. Clinical examination was done to exclude any oral lesions. Oral complaints related to burning mouth syndrome including burning sensation, altered taste sensation, and xerostomia were recorded using dichotomous method.<br /> <strong>Results:</strong> The prevalence of burning mouth syndrome in type 2 diabetic patients with peripheral neuropathy was 18.8%. About half of the of the participants (53.2%) had contributing local factors as fissured tongue, oral lichen planus and chronic candidiasis. There is a positive correlation between local factors and burning mouth syndrome, also there is a positive correlation between local factors and metabolic control (p.value<0.05).<br /> <strong>Conclusion:</strong> Burning mouth syndrome in patients with diabetic neuropathy is complicated. The contributing oral factors are associated with poor metabolic control. Good metabolic control should be achieved to prevent effects of hyperglycemia on oral mucosa, also to prevent further deterioration in neuropathic mechanism. https://adjc.journals.ekb.eg/article_72362_274888386a8f7c4bd2a88bc877bca7c3.pdfCairo University, Faculty of DentistryAdvanced Dental Journal2636-302X2220200401Vertical Marginal Gap Distance of CAD/CAM Milled BioHPP PEEK Coping Veneered by HIPC Compared to Zirconia Coping Veneered by CAD-On lithium disilicate “In-Vitro Study”43507271110.21608/adjc.2020.21032.1043ENMichaelMeshrekyFixed Prosthodontics, Faculty of Dentistry, Cairo UniversityCarlHalimFixed Prosthodontics, Faculty of Dentistry, Cairo UniversityHeshamKatamishFixed Prosthodontics, Faculty of Dentistry, Cairo UniversityJournal Article20191228<strong>Statement of problem:</strong> marginal inaccuracy causes a space between restoration and prepared tooth, which accelerates cement dissolution, leading to secondary caries, pulpal lesions, postoperative sensitivity, periodontal disease and marginal discoloration. Marginal gap should be less than 120µm. <br /> <strong>Aim:</strong> to evaluate vertical marginal gap of PEEK (Bio-HPP) veneered with CAD/CAM composite veneer (HIPC) as compared to zirconia veneered with CAD-On lithium disilicate glass ceramic. And the effect of ageing on the gap of both restorations.<br /> Material and methods: 40 extracted molars were prepared, divided into two groups, control group (ZR) (n=20), teeth restored with IPS e.max ZirCAD copings veneered with IPS e.max CAD and intervention group (PEEK) (n=20), teeth restored with breCAM BioHPP copings veneered with BreCAM.HIPC. Each specimen was photographed using Leica S8 APO stereomicroscope under magnification 32X and image analysis was done. Measurements were taken twice before and after thermo-mechanical cycling.<br /> <strong>Results:</strong> PEEK group recorded higher gap mean values (49.88±7.97um) than zirconia (18.39±3.1um). This was significantly (p < 0.05) as confirmed by Mann-Whitney test, but all measurements were clinically acceptable. And Thermo-mechanical cycling had no effect of on both groups. <br /> <strong>Conclusion:</strong> PEEK veneered with composite can be used intra orally for single crown restorations.https://adjc.journals.ekb.eg/article_72711_d6eba49dbdc34a706a4d1a43859c97ab.pdfCairo University, Faculty of DentistryAdvanced Dental Journal2636-302X2220200401Melatonin Effect on Short Implant Supporting Kennedy Class I Removable Partial Denture in Atrophied Posterior Mandibular Alveolar Ridge51608149010.21608/adjc.2020.16121.1029ENDoaaRostomProsthodontics department,Faculty of Dentistry,Cairo UniversityMohamedFaroukabdullaprosthodontics department,faculty of dentistry,cairo universityJournal Article20190822<strong>Background:</strong>The lack of posterior abutments is the major problem in Kennedy class I removable prosthesis because of lack of partial denture retention and stability .Short implants can be used in case of alveolar bone heights less than 10mm, the focused question is In partially edentulous patients presenting severe resorption of the posterior region of the jaws, can topical application of melatonin improve short implant success rate? <strong>Methodology:</strong> Eight partially edentulous patients with mandibular posterior bilaterally free end saddle (Kennedy class I) were recruited to participate in this study, The study was a split-mouth study. Each patient served as his own control (served into 2 groups), the study side (topical application of melatonin in the molar area implant side), and the control side (no melatonin in the other implant side of the same patients at the molar area). Direct digital periapical sensors were used for assessing bone volumetric changes (bone height and bone density), this record were done 3 months, 6 months and 1 year from the baseline. <strong>Result:</strong> result revealed that there was insignificant difference between Group I & II regarding bone density & height in all follow up periods as (P-value > 0.05) <strong>Conclusion:</strong> According this clinical study, Melatonin effect on increasing bone implant contact and bone density and bone height is unclear. further clinical study on human is necessary to know the effect of melatonin on the bone volumetric changeshttps://adjc.journals.ekb.eg/article_81490_a4e3d7dea2f97f732fdf373c5234f943.pdfCairo University, Faculty of DentistryAdvanced Dental Journal2636-302X2220200401Pre-Extractive Inter-Radicular Implant Bed Preparation versus Conventional Post-Extractive Inter-Radicular Implant Bed Preparation in Mandibular Molars61798153110.21608/adjc.2020.21372.1041ENMohamedElshoaibiImplantology Department, Faculty of Dentistry, Cairo University0000-0002-3665-4167Journal Article20191230<strong>Aim: </strong>to assess the implant stability and amount of crestal bone loss in immediate implant placement in mandibular molars by using pre-extractive inter-radicular implant bed preparation versus conventional post-extractive inter-radicular implant bed preparation. <strong>Subjects and Methods: </strong>Twenty patients (5 males, 15 females), suffering from badly decayed vital or non-vital posterior mandibular molar teeth were selected and randomly divided into 2 groups, 10 per group; the first group received Pre-extractive interradicular implant bed preparation while the second group received Conventional post-extractive interradicular implant bed preparation. <strong>Results: </strong>immediateImplant stability results that assessed using Osstell device measuring ISQ values between groups were (58±0.81 ISQ units) for the test group and (54.6±1.07 ISQ units) for the control group at immediate implant placement which represent significant differences (p<0.001). marginal bone loss results of mesial and distal bones between one-year and six-months’ post-operative implant placement were (0.21 ±0.09 mm) in the test group and (0.37±0.17 mm) in the control group and marginal bone loss results of buccal and lingual bones between same periods were (0.21 ±0.04 mm) in the test group and (0.42±0.21 mm) of the control groups with significant differences of (p=0.022*) in mesial and distal bone loss and (p=0.006*) in buccal and lingual bone loss between groups. <strong>Conclusion: </strong>Implants that placed by pre-extractive inter-radicular implant bed preparation had a high primary stability and a less marginal bone loss in both bucco-lingual and mesio-distal dimensions from six-months to one-year than that placed by post-extractive inter-radicular implant bed preparation.https://adjc.journals.ekb.eg/article_81531_a5902f8f24edf7510b015485d38d4871.pdf