Future University In Egypt (FUE)
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Hossam Nassar

Basic information

Name : Hossam Nassar
Title: Associate Professor
Personal Info: Dr.Hossamedin Ibrahim Nassar Working as an Associate Professor at removable Prosthodontics Dept. at Future University in Egypt

Education

Certificate Major University Year
PhD Prosthodontics Ain Shams University - Faculty of Oral and Dental Medicine 2011
Masters Prosthodontic Cairo University - Faculty of Oral and Dental Medicine 2007
Bachelor . Cairo University - Faculty of Oral and Dental Medicine 1998

Teaching Experience

Name of Organization Position From Date To Date
October 6 University Instructor 01/09/2003 31/08/2007

Researches /Publications

Patient satisfaction of tooth supported overdentures utilizing ball attachments - 01/1

Hossameldin Ibrahim Nassar Mohamed Hassona

01/12/2016

Statement of problem Teeth retained overdenture therapy is an alternative treatment rarely used in cases with few remaining teeth. Purpose The aim of this study was to evaluate the patient satisfaction associated with teeth retained maxillary and mandibular overdentures utilizing ready made ball attachment. Materials and methods Thirty patients treated with teeth retained overdenture utilizing ready made ball attachment. Participants completed a series of questionnaires (OHIP-14 questionnaire) after tooth supported overdenture wearing by one month (base line), then after one month and 12 months of wearing the attachment retained overdenture. Results Statistically insignificant difference between gender, and for upper and lower arch overdentures, before attachment placement, one month and one year post attachments placement. Statistically significant difference in patient satisfaction was recorded with different intervals of the questioner. Conclusion Tooth retained overdentures using ball attachments achieve greater satisfaction scores than those conventional tooth supported overdentures.

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Outcome of immediate implant placement with bone augmentation in the anterior maxillary supporting partial denture - 01/0

Hossameldin Ibrahim Nassar Mohamed Hassona

01/09/2016

Background: Immediate implantation was suggested to reduce the number of surgical interventions and to preserve the alveolar ridge. Implant placement demands a thorough understanding of anatomic, biologic, surgical, and prosthetic principles. Purpose: The aim of the present study was to evaluate the 18 months survival rate of osseointegration, on the basis of clinical and radiographic examinations, for simultaneous bone grafting with immediate implants supporting partial denture with locator attachment in the maxillary esthetic area. Materials and Methods: A total of twenty patients randomly assigned received 45 immediate implants with bone graft supporting maxillary partial overdentures. The clinical analysis of probing depth, bleeding index, plaque index, and radiographic analysis of crestal bone level at a follow-up interval of 6, 12, and 18 months was evaluated. Results: All implants achieved successful osseointegration. The soft tissue architecture remained stable throughout the healing period of the implants as well as after final prostheses delivery, contributing to aesthetically pleasing and biologically sound results. Conclusions: Immediate implants with locator attachment supporting maxillary partial denture can be safe, reliable, and a predictable option for the replacement of teeth in the anterior maxillary zone, providing stability to the peri-implant soft tissue.

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The Outcome of Immediate Implant placement with Bone Augmentation in the Maxillary Esthetic Zone Supporting Removable Partial Denture - 01/0

Hossameldin Ibrahim Nassar Mohamed Hassona

01/08/2016

Background: Immediate implantation was suggested to reduce the number of surgical interventions and preserving the alveolar ridge. Implant placement in the esthetic zone demands a thorough understanding of anatomic, biologic, surgical, and prosthetic principles. Thus the aim of the present study was to evaluate the 36 months survival rate of osseointegration, on the basis of clinical and radiographic examinations, for simultaneous bone grafting with immediate implants supporting partial denture with locator attachment in maxillary esthetic area. Materials and Methods: A total of 20 patients received 45 immediate implants with bone graft supporting maxillary partial overdentures. The clinical analysis of Probing Depth (PD), Bleeding Index (BI), Plaque Index (PI) and radiographic analysis of crestal bone level at a follow up interval of 12 weeks, 24 weeks and 36 weeks were evaluated. Results: All implants achieved successful osseointegration. The soft tissue architecture remained stable throughout the healing period of the implants as well as after final prostheses delivery, contributing to esthetically pleasing and biologically sound results. Conclusion: Immediate implants with locator attachment supporting maxillary partial denture can be safe, reliable and a predictable option for the replacement of teeth in the esthetic zone, providing stability to the peri-implant soft tissue Keywords: immediate implant, bone graft, partial denture, locator

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Bacterial leakage of different internal implant/abutment connection - 01/1

Hossameldin Ibrahim Nassar Mohamed Hassona

01/12/2015

Objectives This research was carried out to evaluate the bacterial leakage of two different internal implant abutment connections in vitro. Materials and Methods Twenty dental implants divided into two equal groups were compared; Group 1 fixtures with an internal hexagonal geometry; Group 2 fixtures with a tri-lobe internal connection. A bacterial suspension of Staphylococcus aureus was prepared to obtain a density of 0.5 McFarland standards. All implant abutment assemblies were submerged in sterile tubes containing 4 mL of S. aureus broth culture and were incubated at 37 °C for 14 days. The specimens were disassembled and the inner surfaces of the implants were sampled by sterile paper points. Then the paper points were immersed in test tubes containing sterile BHI broth. From the broth, culture was done on blood agar plates and incubated at 37 °C for 24 h. The resulting colonies were identified by Gram's stain and biochemical reactions. Results Internal hexagon implants showed statistically significant higher mean Log10 CFU than Tri-lobe implants. Conclusion Bacterial leakage seems to be inevitable but fixture abutment interface geometry plays an important role in the amount of leakage.

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Bone changes in ridge split with immediate implant placement: A systematic review - 01/1

Hossameldin Ibrahim Nassar Mohamed Hassona

01/12/2015

Introduction Alveolar width deficiency represents loss of buccal cortical or/and medullary bone. Deficiency of the buccal represents significant difficulty in implant reconstruction. A variety of implant-driven bone augmentation techniques for the deficient alveolar bone have been proposed. Alveolar ridge split is an excellent tool for regaining alveolar ridge width. Material and method Publications on the subject in English were searched to select articles up to June 2015. A systematic review was conducted searching an electronic database (MEDLINE, Pub- Med and Cochran) for articles in pre-reviewed journals concerning studies on humans. Two independent reviewers screened 815 papers. Result A consensus on the studies to be selected was reached after discussion; 804 articles were excluded on the basis of the title and abstract. Kappa score for the selection of the paper was 0.89. Full-text articles were obtained for the 11 selected publications. The 11 full texts were independently assessed by the two reviewers and 3 studies were found to qualify for inclusion. Conclusion Alveolar ridge splitting might be considered a predictable approach that demonstrates a high implant survival rate, adequate horizontal bone gain and minimal postoperative complications. Weak evidence showed the effect of flap design and immediate implantation on marginal bone loss and survival rate.

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Prosthetic management of palatal perforation in heroin abuse patient - 01/0

Hossameldin Ibrahim Nassar Mohamed Hassona

01/08/2015

Heroin induced palatal perforation is a very infrequent complication. The authors report in this study a patient who suffered palatal perforation as a result of long time of snorting Heroin. He presented complaining of liquid passage from the oral cavity into the nasal cavities and hypernasality during speech. An immediate transparent acrylic partial obturator was constructed and fitted. It was successful in sealing the defect. However after 4 months an enlargement in the perforation was evident due to failure to cease the habit from the patient. It required the fabrication of new palatal obturator to seal the enlarged perforation and enhance the speech. This report discusses the possible lines of treatment of such complication. The report pointed out the possible prosthetic options. It also, emphasizes the importance of a multidisciplinary approach in management of drug abuse patients and complications encountered in their treatment. The use of palatal obturators improves patient quality of life, avoiding socially embarrassing situations such as the passage of fluids and solids into the nasal passages and maxillary sinuses, or a nasal tone.

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Evaluation of ridge changes in immediate implant placement in split crest technique - 01/0

Hossameldin Ibrahim Nassar Mohamed Hassona

01/01/2014

Objectives: This research was carried out to evaluate crestal bone level changes around dental implants immediately installed after split-crest technique in mandible. Materials and Methods: Ten patients receiving 20 dental implants with inadequate mandibular buccolingual dimension, 2–3 mm of crestal width; and sufficient height from the tip of the alveolar ridge to the inferior alveolar canal were evaluated in this retrospective study. All the patients underwent split-crest technique with immediate implant insertion. Implant placement was conducted through a conventional two-step procedure. After 4 months the patients received a mandibular (partial or complete) overdenture retained by ball and socket attachments. Crestal bone level changes around dental implants were assessed using cone beam computed tomography. Results: Using the split ridge technique showed high rate of success and minimal ridge height changes.

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Radiographic Assessment of Different Attachment System in Kennedy Class 1 Lower Partially Edentulous Ridges with Anterior Modification Space - 01/0

Hossameldin Ibrahim Nassar Mohamed Hassona

01/01/2014

Aim: This research was carried out to evaluate different attachment systems in cases of distal extension partial denture with anterior modification area regarding the crestal bone level changes of the principal abutments. Materials & Methods: Twenty patients exhibiting Kennedy Class 1 lower edentulous ridges with anterior modification space with bilateral canines, and first or second premolars the standing abutments were selected. Patients were divided into 2 equal groups. Group one, partial denture retained by anterior splint bar with short distal cantilever extension was constructed, while for group two partial denture retained by extracoronal resilient attachments was constructed. Follow up visits were scheduled at time of denture insertion, six, twelve and eighteen months after denture insertion. Crestal bone level changes were assessed using intra-oral radiographs taken with the standardized long cone paralleling technique. Results: This study showed that there was a statistically significant increase in crestal bone height loss around the principal abutments in both groups. For both groups, statistically significant difference was found comparing the amount of marginal bone loss at the anterior abutments, where group 1 showed less bone resorption from insertion to 18 months in comparison to group 2. Conclusion: Anterior splint bar with short distal cantilever should be considered as a treatment option in cases exhibiting Kennedy class 1 edentulous ridges with anterior modification space.

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Radiographic Assessment of Different Attachment System in Kennedy class I lower partially edentulous ridges with anterior modification space - 01/0

Hossameldin Ibrahim Nassar Mohamed Hassona

01/01/2014

Objectives: This research was carried out to evaluate different attachment systems in cases of distal extension partial denture with anterior modification area regarding the crestal bone level changes of the principal abutments. Materials and Methods: Twenty patients exhibiting Kennedy class I lower edentulous ridges with anterior modification space with bilateral canines, and first or second premolars the standing abutments were selected. The abutments were prepared to receive splinted ceramometallic crowns. Patients were divided into two equal groups. Group one, partial denture retained by anterior splint bar with short distal cantilever extension was constructed, while for group two partial denture retained by extracoronal resilient attachments was constructed. Follow up visits were scheduled at time of denture insertion, six, twelve and eighteen months after denture insertion. Crestal bone level changes were assessed using intra-oral radiographs taken with the standardized long cone paralleling technique. Results: This study showed that there was a statistically significant increase in crestal bone height loss around the principal abutments in both groups. For both groups; statistically significant difference was found comparing the amount of marginal bone loss at the anterior abutments; where group I showed less bone resorption from insertion to eighteen months in comparison to group II. Statistically insignificant difference was found in the amount of marginal bone loss of the posterior abutments. Conclusion: Anterior splint bar with short distal cantilever should be considered as a treatment option in cases exhibiting Kennedy class I lower partially edentulous ridges with anterior modification space.

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Evaluation of ridge changes in immediate implant placement in split crest technique - 01/0

Hossameldin Ibrahim Nassar Mohamed Hassona

01/01/2014

Objectives: This research was carried out to evaluate crestal bone level changes around dental implants immediately installed after split-crest technique in mandible. Materials and Methods: Ten patients receiving 20 dental implants with inadequate mandibular buccolingual dimension, 2–3 mm of crestal width; and sufficient height from the tip of the alveolar ridge to the inferior alveolar canal were evaluated in this retrospective study. All the patients underwent split-crest technique with immediate implant insertion. Implant placement was conducted through a conventional two-step procedure. After 4 months the patients received a mandibular (partial or complete) overdenture retained by ball and socket attachments. Crestal bone level changes around dental implants were assessed using cone beam computed tomography. Results: Using the split ridge technique showed high rate of success and minimal ridge height changes.

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