Aims: To evaluate prosthetic maintenance and patients' satisfaction with the BioHPP (biocompatible high-performance polymer) was used as a skeletal substructure for the hybrid (implant fixed detachable) prosthesis versus the BioHPP bar supporting and retaining implant overdenture based on the visual analogue scale (VAS). Materials and Methods: twenty completely edentulous male patients were selected randomly from the outpatient clinic of the Department of Prosthodontics, Faculty of Dentistry, Ain Shams University; the patients complained of ill-fitting mandibular dentures due to ridge atrophy. All patients received new complete dentures; four inter foramina implants were placed using a surgical guide. Three months after osseointegration, the patients divided into two groups received CAD-CAM BioHPP framework hybrid prosthesis (group I) and BioHPP bar supported and retained overdenture (group II). The prosthetic complication was recorded, and the patient's subjective evaluation using a questionnaire based on the VAS includes five points for speech, chewing, comfort, aesthetics, oral hygiene, and general satisfaction was recorded. Results: Patient satisfaction revealed no difference between groups I and II at followup, with both groups highly satisfied after 12 months of follow-up. The general satisfaction for Group I was 4.43 ± 0.34, while that group II was 4.43 ± 0.50. Conclusion: The CAD/CAM BioHPP framework materials offer treatment modalities that are a good alternative for mandibular rehabilitation. Excellent levels of subjective patient satisfaction and prosthetic maintenance during the oral function were seen.

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Objective: was to compare the marginal bone loss around two splinted Mini-implants and two conventional implants retaining mandibular overdenture.Material and methods: Fourteen completely edentulous male patients were selected from those attended the out-patient clinic of Removable Prosthodontic Department, Faculty of Dentistry-Ain Shams University to participate in this study. Based on the cone beam computed tomographic (CBCT) assessment, the selected patients were divided into two equal groups: Group (I):Patients received conventional complete maxillary dentures opposed by mandibular overdentures supported and retained by two splinted Mini-implants of 2.5mm diameter and 12 mm length in the interforaminal region. Group (II): Patients received conventional complete maxillary dentures opposed by mandibular overdentures supported and retained by two conventional implants of 4mm diameter and 12mm length placed in the lateral-canine regions. CBCT records were obtained upon Overdenture Insertion (Baseline), Six Months, Twelve Months after insertion. The Mesial, Distal, Buccal and Lingual marginal bone heights around the implants were evaluated, using the linear measurement system of the software with flat panel detector supplied by the cone beam CT. Results: Peri-Implant Bone Loss in Group (I):Six months following denture insertion calculated means of the measured bone loss for the Mesial surfaces were 0.55 ± 0.1 mm, for the Distal surfaces were 0.68 ± 0.03 mm, for the Buccal surfaces were 0.53 ± 0.12 mm and for the Lingual surfaces were 0.51±0.03mm.The calculated means of the measured bone loss was statistically significant at P < 0.05. At twelve months following denture insertion, the calculated means of the measured bone loss for the Mesial surfaces were 0.68 ± 0.1 mm, for the Distal surfaces were 0.87 ± 0.7 mm, for the Buccal surfaces were 0.69 ± 0.1mm and for the lingual surface 0.67± 0.03mm. The calculated means of the measured bone loss were statistically significant ( P ≤ 0.05). Peri-Implant Bone Loss in Group (II):Six months following denture insertion calculated means of the measured bone loss for the Mesial surfaces were 0.51 ± 0.10 mm, for the Distal surfaces were 0.62 ± 0.08 mm, for the Buccal surfaces were 0.51 ± 0.09 mm and for the Lingual surfaces were 0.50 ± 0.09mm. The calculated means of the measured bone loss were statistically significant (P ≤ 0.05).

Aim of the study: to compare complete denture with implant supported overdenture regarding occlusion and disocclusion time using a T scan. Materials and methods:A crossover clinical trial was adopted,50 patients were selected for this study. The assessment was carried out with conventional complete dentures and then with the same dentures after loading of the implants. Computerized occlusal analysis using the T-Scan III system was conducted to perform baseline computer-guided occlusal adjustment for conventionally fabricated dentures. Recording of OT (occlusion time) and DT (Disocclusion time) right and left values using the T-Scan were subsequently carried out for all dentures, first without implants and then after implants loading. All T-Scan procedures were carried out by the same clinician.Results: Independent t test was used in this study because data was normally distributed. The OT values were recorded and a mean OT value was calculated for each subject, where the CD Complete denture group mean OT (0.49±(0.21)s which was about 0.13 s longer than the Implant Supported Over Denture(ISOD) mean OT (0.36±(0.19). The disocclusion time were for right 0.55± 0.25 for CD and 0.35± 0.32 for ISOVD, while on the left was 0.56±0.24 for CD and 0.37±0.27 for ISOVD. There were highly significant results between the two groups in Occlusion time and disocclusion RT and left 0.0016, 0.0007, 0.0003 respectively. Conclusion:Using the computerized analysis of the Occlusion Time, Implant supported over denture proved to be a better treatment option regarding occlusion and disocclusion time where timing decreased significantly after implant loading.

The aim of the study was to compare patient satisfaction with different types of stents using visual analogue scale and Pain report analysis. Materials and methods:Thirty dentulous patients were selected, based on the clinical examination, the patients were suffering from pain in the temporomandibular joint region that might be worse in the morning or associated with eating,tenderness of temporomandibular joint with palpation at rest and/or at function, pain and/or tenderness of masseter and temporalis muscle.The patients were randomly divided into three equal groups, ten patients in each group. Splints were constructed for the upper arch of each patient. Soft, hard and 3 Dprinted stents were fabricated.Pain intensity questionnaire (visual analogue scale) and Pain report analysis were used before treatment, after three months and six months.Results: Kruskal-Wallis test was used to analyze the ordinal scale date of the visual analogue scale and pain report analysis. There was significance difference between the three groups. (Soft, hard and three D printed) after three month and six month of using the stent. Wicoxon test was used to test for significance between the different groups at three months and six months. The Wilcoxon test for visual analogue scale at three months showed that the hard and 3D printed stent are statistically significant to soft splint. The same was for the six months period. While Wilcoxon test for pain report analysis at 3 months didn't show any statistical significance between the three groups, while at six month there was statistical significance between the hard splint and the 3 D printed splint with the soft splint. Friedman's test was used to compare between different time intervals inside the groups. There was a statistical significance between the three groups during the three months and six months interval time of the treatment. Conclusion:All patients improved over time. The results showed that both hard and soft splints are effective but the hard splint and the three D printed splints are more effective compared to soft splint. . 64, No. 2 2. Drug therapy; which includes analgesics, muscle relaxants and nutritional supplements. (1) 3. Occlusal therapy; which involves repositioning the mandible in a centric position by orthodontic means and /or occlusal equilibration to remove occlusal interferences (irreversible occlusal therapy) or by occlusal splints. (1) 4. Physiotherapy; which is used to relax the muscles and improve the circulation .physiotherapy includes thermotherapy, coolant therapy, electro galvanic stimulation (EGS) therapy, transcutanous electrical nerve stimulation (TENS), acupuncture and LASER. (4,5) Oral appliancesOral appliances may be classified or grouped according to their material, function, occlusal coverage, dental arch coverage, or a combination of more than one characteristic.According to the materials used in the appliance construction: Polymers, as in hard acrylic or resilient vinyl splints, Metallic, as in metallic alloy or gold overlay, Combination of m...