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Nelly Ibrahim

Basic information

Name : Nelly Ibrahim
Title: Professor
Personal Info: Nelly Ibrahim Hamouda works as an Assistant Professor at the Faculty of Dentistry at Future University in Egypt

Education

Certificate Major University Year
PhD . Mansoura University .Faculty of Dentistry 2008
Masters NA Faculty of Dentistry, Mansoura University 2005
Bachelor NA Faculty of Dentistry, Mansoura University 1999

Teaching Experience

Name of Organization Position From Date To Date
Faculty of Dentistry, Mansoura University Lecturer 01/01/2008 01/01/2014
Faculty of Dentistry, Mansoura University Assistant Professor 01/01/2005 01/01/2008
Faculty of Dentistry, Mansoura University Teaching Assistant 01/01/2001 01/01/2005

Researches /Publications

Effect of two designs of implantsupported overdentures on peri-implant and posterior mandibular bone resorptions: a 5-year prospective radiographic study - 01/0

Nelly Ibrahim Hammouda Ibrahim

Nelly Ibrahim Hammouda

01/08/2016

Objectives: The aim of this study was to evaluate and compare the effect of two designs of implant-supported overdentures on peri-implant and posterior mandibular bone resorptions after 5 years of follow-up. Materials and methods: Twenty edentulous patients were randomly assigned into two equal groups: Group I (GI), patients received overdentures supported and retained by cantilevered bars on two canine implants and Group II (GII), patients received overdentures retained by straight bars on two canine implants and supported by two-first molar implants. Peri-implant vertical (VBL) and horizontal (HBLO) bone losses were assessed on periapical radiographs at the time of overdenture insertion (T0), 6 months (T6 m), 1 year (T1), 3 years (T3), and 5 years (T5) after insertion. Posterior mandibular bone resorption was evaluated using proportional measurements (posterior area index, PAI) made on panoramic radiographs at T0 and T5. Results: Group I recorded significant higher VBL than GII. VBL increased significantly with advance of time in both groups. Posterior implant recorded significant higher VBL than anterior implants in GII. HBLO did not differ significantly between groups or between observation times. Group I recorded significant higher PAI than GII at T5. Group, age, and initial height of the mandibular ridge were significantly correlated with PAI. Conclusion: Within the limitations of this study, regarding the small sample size, it could be concluded that overdentures retained by straight bars on two canine implants and supported by two-first molar implants present a clinical advantage in terms of peri-implant and posterior mandibular bone preservation compared to overdentures supported and retained by cantilevered bars on two canine implants after 5 years.

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Expansion of Mandibular Knife-Edge Ridge and Simultaneous Implant Placement to Retain Overdentures: One-Year Clinical and Radiographic Results of a Prospective Study - 01/0

Nelly Ibrahim Hammouda Ibrahim

01/07/2016

Purpose: The aim of this study was to evaluate and compare the clinical and radiographic outcomes of two implants placed in expanded mandibular knife-edge ridge and implants placed in unexpanded ridges to retain overdentures. Materials and methods: Fifteen completely edentulous patients with knife-edge ridges at canine areas of the mandible received two implants using the ridge expansion technique (study group, SG). Expansion was performed using piezoelectric corticotomy, and self-threading expanders. The control group (CG) comprised patients who received two-implant at canine areas without ridge expansion but were all case matched to SG and served as historical cohort. In both groups, mandibular overdentures were connected to the implants with Locator attachments 3 months after implant placement. Clinical (Plaque index; PI, Gingival index; GI, Probing depth; PD, and implant stability; ISQ) and radiographic (Vertical bone loss; VBL) parameters were recorded at time of overdenture insertion (base line, T0), 6 months (T6), and 12 months (T12) after insertion. Results: The cumulative success rates were 100% and 96.4% for CG and SG, respectively, without significant difference between groups. All tested parameters increased significantly with advance of time in both groups. There was no significant difference in PI, GI, PD, and ISQ between groups. However, SG recorded significant higher VBL than CG at T6 and T12. Conclusion: Expansion of mandibular knife edge ridge and simultaneous placement of implants to retain overdentures is associated with clinic and radiographic outcomes comparable to implants placed in unexpanded ridges after 1 year. However, long term randomized controlled trials with sufficient sample size are still needed to ensure the findings of the present study. KEY WORDS: implant, knife-edge ridge, mandibular, overdentures, ridge expansion INTRODUCTION The York consensus statement on overdentures1 concluded that two implants placed in the interforaminal region of the mandible to retain overdentures should be the minimum standard of prosthetic care for edentulous patients. Such treatment provides better retention, stability, masticatory performance, patient satisfaction, quality of life, and cost compared to conventional dentures. The commonly used attachments for denture connection to the implants are ball, bar, magnetic, and resilient telescopic attachments.2 The locator attachments were introduced in 2001. These attachments are resilient,3 selfaligning, and available in different colors with different retention values.4 Moreover, they have dual retention and built-in angulation compensation.5 In addition Locators can be used with limited interarch distance to reduce denture base fractures thanks to their low profile.6 The long-standing mandibular edentulous ridge undergoes accelerated bone loss especially at the labial side of incisor and canine areas.7 The buccolingual width of crestal bone decreases by 3.1 to 5.9 mm, resulting in an estimated 60% loss of the original *Faculty of Dentistry, Associate Professor, Removable Prosthodontics, Department of Removable Prosthodontic, Mansoura University, Eldakahlia, Egypt; †Faculty of Dentistry, Associate Professor Oral Surgery, Future University, Cairo, Egypt Corresponding Author: Mr. Moustafa Abdou ELsyad, Faculty of Dentistry, Department of Removable Prosthodontic, Mansoura University, P.O. Box: 35516, #68 ElGomhoria Street, ElMansoura, Eldakahlia, Egypt; e-mail: [email protected] VC 2016 Wiley Periodicals, Inc. DOI 10.1111/cid.12436 1

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Efficacy of Equine Demineralized Bone Matrix in treating Oral Cyst following Enucleation: A Histologic and Clinical study in Humans - 01/1

Nelly Ibrahim Hammouda Ibrahim

Lobna abdel aziz

01/12/2015

Objectives: The aim of this study is to report the effect of equine demineralized bone matrix (DBM) on the healing of oral cystic cavities following enucleation using clinical parameters. Study design: Twelve patients aged from 20 to 40 years and suffering from cystic lesion in the jaw were included in this study. Cystic cavity augmentation with DBM was performed on 6 patients. After an average of 6 months’ healing period, a core bone was obtained and stained for histologic analysis simultaneously with implant placement. Results: Uneventful healing and spontaneous filling of the residual cavities was obtained in all cases. All implants showed favorable Osseointegration, and final restorations were completed without failure in all cases. Histologically, new bone formation was active around grafted bone, and grafted bone was well integrated to the newly formed bone matrix. In histomorphometric analysis, vital bone volume was 25.2 ±11.9%. Conclusion: The equine DBM is clinically useful for the increase of bone volume in cystic cavities after enucleation, because of its favorable effect of new bone formation and it is considered to be a safe, simple, reliable, acceptable, and easy handling bone grafting material. Keywords: Demineralized bone matrix; Bone graft; Oral cyst

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A maxillary ridge splitting technique using piezosurgery and a non traumatic bone expansion for immediate placement of implant’, . - 01/0

Nelly Ibrahim Hammouda Ibrahim

Nelly Ibrahim Hammouda Ibrahim

01/01/2013

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Immediate implant placement into fresh extraction socket in the mandibular molar sites: A modified insertion technique. - 01/0

Nelly Ibrahim Hammouda Ibrahim

01/01/2013

Background Immediate implant insertion in mandibular molar extraction sockets raises a series of challenges for clinicians. PURPOSE: This preliminary study demonstrates the use of a modified insertion technique of implant placement at the time of mandibular molar extraction. MATERIALS AND METHODS: Immediate implants were placed at the time of molar extraction in 20 patients; a sulcular buccal incision with releasing periosteal incisions were made around the mandibular molar to be replaced, and implant insertion into the interseptal/interradicular bone was performed. The remnants of roots were atraumatically extracted, and the bony defects around the implant were grafted with synthetic resorbable bone substitute β- Tricalcium phosphate, and the flap was sutured. Three months later, implants were restored with single crown fixed prostheses. Patients were followed up at 6, 12, and 18 months after insertion using periapical standardized radiographs to monitor the changes in the marginal bone level. RESULTS: Our modified insertion techniques showed an implant survival rate of 95%; one implant failed 4 weeks after insertion. No significant marginal bone loss around the implant was recorded at all times of follow-up. Satisfactory soft issue parameters were achieved. CONCLUSIONS: The combination of immediate implant placement with engagement of the interseptal/interradicular bone, atraumatic extraction of remnant roots, and concomitant regenerative therapy showed preliminary favorable outcomes. However, wider application of this technique for longer following up periods is required for further conclusive recommendations.

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Chewing efficiency and electromyographic activity of masseter muscle with three designs of implant-supported mandibular overdentures. A cross-over study. - 01/0

Nelly Ibrahim Hammouda Ibrahim

01/01/2013

PURPOSE: The aim of this study was to compare the effect of three designs for implant-supported mandibular overdenture on the chewing efficiency and electromyographic (EMG) activity of masseter muscles. MATERIAL AND METHODS: Eighteen edentulous patients received new maxillary and mandibular dentures (control, CD) before implant placement. After using the dentures for 3 months, patients were randomly divided into six blocks (three patients/block) and received four implants in canine and first molar areas of the mandible. Following osseointegration period, new duplicate mandibular overdentures were successively connected to the implants with: (i) ball attachment on two implants (2BOD), (ii) bar attachment on two implants (2ROD), and (iii) bar attachments on four implants (4ROD) in a random order. Chewing efficiency was measured using chewing gum, and EMG was recorded during clenching (with or without food). Evaluations were made 3 months after using each of the following prostheses: CD, 2BOD, 2ROD, and 4ROD. RESULTS: All implant-supported overdentures showed a significant increase in chewing efficiency and EMG values when compared to CD. These values increased significantly with 4ROD when compared to 2BOD or 2ROD prostheses. There was no significant difference in chewing efficiency and EMG between 2BOD and 2ROD prostheses. CONCLUSION: Four-implant-supported overdentures seem to present a functional advantage vs. two-implant-supported overdentures, independent of the chosen attachment system.

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Immediate implants placed into infected sockets. - 01/0

Nelly Ibrahim Hammouda Ibrahim

Nelly Ibrahim Hammouda Ibrahim

01/01/2011

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A prospective study on immediate loading of mini-implants with mandibular overdentures. - 01/0

Nelly Ibrahim Hammouda Ibrahim

01/01/2010

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Awards

Award Donor Date
: Exquisite role and efforts in the success of Mansoura's first International Dental Congress (MIDC), April 2013. Mansoura University 2013

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