Within the limitations of this study, immediate implants augmented with ABG/melatonin composite graft would be a valuable option in the esthetic zone.

Purpose: This study aimed to compare orthodontic treatment outcomes in maxillary protrusion enhanced by piezoelectric Corticotomy with and without bone graft guided by 3D surgical template. Subjects and Methods: sample of 20 patients with age range (18-25) year-old allocated randomly into 2 groups, Group I: patients were treated with piezocision corticotomy without bone graft guided by surgical template. Group II: patients were treated with piezocision corticotomy with bone graft guided by surgical template. Treatment changes were evaluated for each group and compared between groups. Data were analyzed using Paired t-test for each group and Student t-test to compare between the two groups. Results: There was a significant decrease in mean SNA, ANB, H angles, SN-U1, MP-L1, overjet measurements and significant increase in mean interincisal and nasolabial angles for both groups. While there was a non-significant difference between mean differences in skeletal, dental and soft tissue measurements between the two groups (p<0.05). Both groups revealed decrease in the mean en masse retraction time. Conclusion: Maxillary protrusion cases treated with piezoelectric corticotomy revealed improvements in profile, esthetics and acceleration in orthodontic tooth movement.

Objective : The present study was designated to evaluate the effect of lepidiumsativum extract on structure and density of bone in immunosuppressed rats with induced chronic periodontitis histologically, hostometrically as well as radiodensitometric analysis by digital radiography assessment (vista scan). Materials and methods: A total 36 wistar male rats were divided randomly into 6 groups (6 rats/group). The study sample was divided into:I -Control group: in this group rats were fed with a normal diet.II-Control group with ligature: without receiving dexamethasone injection, a sub marginal cotton ligature.III-Vehicle group: in this group rats were received a weekly dose of dexamethasone for 6 weeks and received sub marginal cotton ligature (no treatment). SRP 1 (methanol group): rats were received methanol extract for 30 days, these were subjected to scaling and root planning (SRP). SRP 2 (watery group): in this group rats were subjected to (SRP). SRP 3 group submitted only to SRP and received no further treatment.Results: methanol extract has better anabolic effect on bone and regenerative on periodontal ligaments than watery extract.This could be explained by the fact that lepidiumsativum possesses anti-inflammatory, immunomodulatory properties and antioxidative activity that may resolve periodontal inflammation.

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Purpose:The current study was directed to estimate the role of porphoromonas gingivalis in the relation between rheumatoid arthritis and periodontitis by using subantimicrobial dose doxycycline. Subjects and methods: The current study was accomplished on twenty patients who had mild or moderate chronic periodontitis and rheumatoid arthritis they were partitioned into two groups: Group I; ten patients were exposed to mechanical debridement only and Group II: ten patients were exposed to mechanical debridement added to receiving small dose doxycycline (SDD) as a host modulatory agent (20mg twice daily) for three months. Results: group I exhibited a greatly significant improvement in clinical parameter in correlation to group II after three months follow up. Group II showed the statistically significantly lowest percentage decrease in number of bacteria in synovial fluid Conclusion: The adjunct use of doxycycline as host modulatory agent improved the treatment outcomes when used with mechanical debridement in rheumatoid arthritis and patients with periodontitis. Codex : 45/1907 azhardentj@azhar.edu.eg

Purpose: The current clinical study was done to examine clinical and biochemical changes of Vascular Endothelial Growth factor (VEGF) biomarker present in (GCF) in response to LLLT combined with Platelet Rich Fibrin (PRF) & bovine xenograft to treat infra-bony defects. Material and methods: The current study was conducted on twenty (20) sites from ten (10) patients. A spilt-mouth design used, sites were randomly selected from each patient, into two groups: laser group; ten (10) sites received PRF system without irradiation, and control group; ten (10) sites received PRF system and it will be irradiated with low level laser. Clinical parameters including probing pocket depth (PPD), clinical attachment level (CAL), Plaque index (PI), and gingival index (GI). ELISA quantification analysis of VEGF was done. Results: comparison between the groups at 6 months showed significant difference between both Probing depth and clinical attachment level, while Plaque index and Gingival index showed a significance difference starting from 2 weeks postoperatively. VEGF revealed no significant difference among groups. Conclusion: The using of low intensity laser with PRF system showed an improvement in the outcome of infra bony defects treatment.

Purpose: The current study was conducted to elaborate the clinical, osteocalcin biomarker radiographic effect of biomodulaion effect of low intensity laser as an adjunct to mechanical debridement in the treatment of patient suffering of chronic periodontitis. Material and methods: This current study was conducted on twelve (12) healthy patients that were alienated randomly into two groups: Group A (non lased, control group) twelve (12) patients side with one stage mechanical debridement without using of the low intensity laser as an adjunctive treatment; Group B (Test group, lased) twelve (12) patients side with three stage treatment high level laser decontamination, mechanical debridement with the application of biomodulation six sessions of low intensity laser. Results: lased group showed a significant increase in the clinical parameter, osteocalcin biomarker level after three and six months in comparison with control group after three and six months follow up. Conclusion: The using of laser decontamination, low intensity laser with conventional mechanical debridement showed an improvement in the treatment outcome of chronic periodontitis.

Purpose: To evaluate the effect of different horizontal condylar guidance registration methods and articulators on bilateral balanced occlusion of complete denture. Materials and Methods: Twelve completely edentulous patients with ages ranging from 50-60 years old were selected from the outpatient clinics of the Removable Prosthodontic Department, Faculty of Dental Medicine for Girls, Al-Azhar University. Twelve complete dentures were constructed according to the balanced occlusal concept and then duplicated for experimental work. Horizontal condylar guidance angles were measured using three different methods; the protrusive interocclusal wax record method, tracing method, and Cone Beam Computed Tomography (CBCT) scan. The angles were adjusted on two types of articulators; Arcon and non-Arcon articulators.The effect of each method and the effect of the two types of articulators on bilateral balanced occlusion were studied. Results: The result of this study showed that there was no significant difference in bilateral balanced occlusion when using different types of articulators or different horizontal condylar guidance registration methods during the construction of complete denture. Conclusion: Within the limitation of this study, it can be concluded that the Hanau system with the wax protrusive record may be the most practical way to obtain the desired relative horizontal condylar angle.