Iman Radi - Academia.edu (original) (raw)

Papers by Iman Radi

Research paper thumbnail of Occlusal Appliances Might Be Clinically Efficient in Treating Sleep Bruxism

Journal of Evidence-Based Dental Practice

Research paper thumbnail of Limited evidence suggests survival of non-splinted short implants (≤8.5 mm) is comparable to that of splinted implants

Journal of Evidence-Based Dental Practice

Research paper thumbnail of Limited evidence about clinical and radiographic outcomes of immediate implants supporting full-arch fixed prostheses: A critical summary

Advanced Dental Journal

This critical summary was conducted to achieve an evidence based decision about immediate implant... more This critical summary was conducted to achieve an evidence based decision about immediate implants supporting full arch fixed prostheses (FAFP). A randomized clinical trial (RCT) comparing periimplant health, radiographic outcomes and success of immediate versus delayed implants, supporting FAFP was selected and critically appraised by Cochrane tool for risk assessment of bias. In the RCT, a one-year follow up showed no significant difference between both treatment modalities regarding all clinical and radiographic outcomes, except for crevicular fluid volume in maxilla, which was 87.4 ± 60.5 for immediate and 34.7± 22.6 for delayed implants (p<0.05). Selection, co-intervention, assessment and attrition biases are highly suspected. Considering the biases that might be introduced in this trial, evidence about the results could be limited. Therefore, immediate implants are recommended limitedly based on proper case selection. RCTs with calculated sample sizes, standardized treatment and measurement procedures are still highly required to enhance the internal validity.

Research paper thumbnail of Effect of Smoking on Dental Implant Failure: A Systematic Review

Ain Shams Dental Journal

Objectives: The objective of this systematic review is to determine the prognosis of implant trea... more Objectives: The objective of this systematic review is to determine the prognosis of implant treatment in smokers if compared to non-smokers.

Research paper thumbnail of Smoking Might Increase the Failure Rate and Marginal Bone Loss Around Dental Implants

Journal of Evidence-Based Dental Practice

Research paper thumbnail of Extra-short implants may be a viable alternative to longer implants with bone augmentation in atrophic maxillary and mandibular ridges

Journal of Evidence-Based Dental Practice

Research paper thumbnail of Effect of framework material on the clinical outcomes of full arch implant supported prostheses remains unquantifiable

Journal of Evidence-Based Dental Practice

Research paper thumbnail of The Evidence is Unclear on the Effectiveness of Platelet Rich Fibrin in Socket Preservation

Journal of Evidence-Based Dental Practice

Research paper thumbnail of Immediate implant placement utilizing vestibular socket therapy versus early implant placement with contour augmentation for rehabilitation of compromised extraction sockets in the esthetic zone: A randomized controlled clinical trial

Clinical Implant Dentistry and Related Research

Research paper thumbnail of Implant prognosis in irradiated versus non-irradiated nasal, orbital and auricular sites

International Journal of Oral and Maxillofacial Surgery, 2019

The purpose of this systematic review was to evaluate implant survival in irradiated nasal, auric... more The purpose of this systematic review was to evaluate implant survival in irradiated nasal, auricular, orbital sites and to compare them with non-irradiated respective sites. Four electronic databases and seven related journals were searched until December and March 2018, respectively. A total of 7892 articles were identified, 18 of which were included in this review; one non-randomized clinical trial, two prospective cohort, eight retrospective cohort and seven cross-sectional studies. Using the ROBIN-I Cochrane tool for risk assessment, 13 studies were judged at serious, one at moderate and four at critical risk of bias. Thirteen were included in 18 meta-analyses, the results of which showed a significant difference between irradiated and non-irradiated sites, favouring non-irradiated with risk ratio (RR) = 0.93, 95% confidence interval (CI) 0.89-0.97, P=0.001. Comparisons among nasal, auricular and orbital sites revealed no significant differences, whether in irradiated or non-irradiated patients at P<0.05. Hence, it was concluded that, within the limitations of this review, survival of craniofacial implants is negatively affected by radiotherapy, especially in orbital sites. Level of evidence is moderate. Therefore, further prospective cohort studies with calculated sample sizes, restricted or properly managed confounders and no deviations from intended interventions might produce different results.

Research paper thumbnail of Clinical Management of Kennedy Class II Cases Using Osseointegrated Dental Implants

who guided me in a very generous manner throughout the whole practical work.

Research paper thumbnail of Vestibular socket therapy with immediate implant placement for managing compromised fresh extraction sockets: A prospective single-arm clinical study

PURPOSE To assess hard and soft tissues regenerated around immediate implants placed in compromis... more PURPOSE To assess hard and soft tissues regenerated around immediate implants placed in compromised fresh extraction sockets using vestibular socket therapy 2 years postoperatively. MATERIALS AND METHODS Twenty-seven compromised fresh extraction sockets were managed using vestibular socket therapy and immediate implant placement. After immediate implant placement, a cortical bone shield was stabilised through a vestibular incision. The socket defect was filled with particulate bone graft. Labial plate thickness and bone height were evaluated 1 and 2 years postoperatively using CBCT. The pink aesthetic score and probing depth were recorded after 6 months, 1 year and 2 years. A Friedman test was used to study changes in the reported outcomes over time, with the level of statistical significance set at P ≤ 0.05. RESULTS All implants recorded a 100.0% survival rate. A statistically significant increase in bone height (0.93 mm, P = 0.004) and apical (0.12 mm, P = 0.026), midfacial (1.26 ...

Research paper thumbnail of Satisfaction with resilient denture liner versus acrylic resin telescopic prostheses for patients with ectodermal dysplasia: A nonrandomized crossover clinical trial

STATEMENT OF PROBLEM Patients with ectodermal dysplasia are characterized by anodontia or oligodo... more STATEMENT OF PROBLEM Patients with ectodermal dysplasia are characterized by anodontia or oligodontia. How their challenging prosthodontic rehabilitation might be optimized is unclear. PURPOSE The purpose of this crossover study was to evaluate the effect of resilient denture liner versus acrylic resin copings in complete overdentures for patients with ectodermal dysplasia. Outcome measures included patient satisfaction, retention, and periodontal health of the abutment tooth. MATERIAL AND METHODS Ten partially edentulous participants diagnosed with ectodermal dysplasia were recruited from the Faculty of Dentistry, Cairo University, Egypt, and enrolled in this crossover clinical trial. All participants received acrylic resin coping-retained maxillary complete overdentures (group N, stage 1). The acrylic resin copings were then replaced by a resilient denture liner (group S, stage 2). Patient satisfaction, retention, and periodontal health parameters were evaluated 1 week and 3 month...

Research paper thumbnail of Evidence is limited about the equivalence of bar/clip and ball/O-ring attachments in edentulous patients restored by implant overdentures

The journal of evidence-based dental practice, 2021

ARTICLE TITLE AND BIBLIOGRAPHIC INFORMATION Gonçalves F, Campestrini VLL, Rigo-Rodrigues MA, Zana... more ARTICLE TITLE AND BIBLIOGRAPHIC INFORMATION Gonçalves F, Campestrini VLL, Rigo-Rodrigues MA, Zanardi PR. Effect of the attachment system on the biomechanical and clinical performance of overdentures: A systematic review. J Prosthet Dent. 2020 Apr;123(4):589-594. doi: 10.1016/j.prosdent.2019.03.024. Epub 2019 Sep 18. PMID: 31,542,217. SOURCE OF FUNDING Nothing was mentioned about funding sources for the review TYPE OF STUDY/DESIGN: Systematic review with meta-analysis.

Research paper thumbnail of Fracture Resistance of Relined Microwave-Cured High Impact Versus Conventional Heat-Cured Acrylic Resin Mandibular Denture Bases: An in Vitro Study

Egyptian Dental Journal, Apr 1, 2018

Aim: This in vitro study aimed at comparing the fracture resistance of microwave-cured high impac... more Aim: This in vitro study aimed at comparing the fracture resistance of microwave-cured high impact and conventional heat-cured acrylic resin mandibular denture bases, whether relined by a resilient liner or not. Materials and methods: Conventional heat-cured (C) and high impact microwave-cured (H) acrylic resins were used in the fabrication of 24 mandibular denture bases divided into 4 groups (n=6). Half of these bases were 4 mm in thickness to be used unrelined (CU and HU), the other half was prepared in reduced thickness (2 mm thick) to be relined (CR and HR) with addition silicon resilient liner (R). The denture bases were loaded in compression at the canine-premolar areas bilaterally until failure, using a universal testing machine. Data on fracture resistance (N), work of fracture (J) and deflection at fracture (mm), were analyzed by Kruskal-Wallis and Dunn's test (P≤0.05). Results: Among the unrelined (CU and HU) and the relined (CR and HR) bases, there were insignificant differences regarding the fracture resistance and the work of fracture median values. Fractures/cracks were repeatedly observed either unilaterally or bilaterally at the premolar regions of the bases. The CU bases exhibited the statistically lowest significant median deflection value at fracture compared to all other denture bases which were insignificantly different from each other. Conclusions: Relining of mandibular denture bases with resilient liners reduced their fracture resistance, work of fracture and increased their amount of deflection at fracture regardless to the type of the denture base material. Economically, conventional acrylic resin denture base material is still the material of choice for dentures that would require relining with resilient liners.

Research paper thumbnail of Post-Surgical Neurosensory Dysfunction of Inferior Alveolar Nerve in Bilateral Sagittal Spilt Osteotomy of the Mandible using Saw versus Piezotome: A Systematic Review and Meta-Analysis

Journal of Evidence Based Dental Practice

Research paper thumbnail of Limited evidence suggests complete arch digital scans are less time efficient than conventional impression

Research paper thumbnail of Limited Evidence Suggests No Benefit of Temporomandibular Joint Lavage Over Conservative Treatment for Temporomandibular Joint Pain and Dysfunction

Journal of Evidence Based Dental Practice

Research paper thumbnail of Marginal Bone Loss of Two Immediately Loaded Narrow Versus Standard Diameter Implants Retaining Mandibular Overdentures: A Randomized Controlled Pilot Study

Egyptian Dental Journal

Purpose: To evaluate peri-implant marginal bone loss in two immediately loaded narrow versus stan... more Purpose: To evaluate peri-implant marginal bone loss in two immediately loaded narrow versus standard diameter implants retaining mandibular implant overdentures.

Research paper thumbnail of Predictability of Primary Implant Stability from Cortical Bone Thickness and Bone Density Values of Cone Beam Computed Tomographic Scans: A Cross Sectional Study

Egyptian Dental Journal

Statement of Problem: Prediction of primary implant stability is important before surgery to dete... more Statement of Problem: Prediction of primary implant stability is important before surgery to determine the possibility of immediate loading. Purpose: To evaluate the predictability of primary implant stability from cortical bone thickness and bone density values of cone bone beam computed tomography (CBCT). Material and Methods: 10 completely and partially edentulous patients were scanned by CBCT, while wearing radiographic templates. Bone density and cortical bone thickness of the planned implant sites were measured for all patients. 23 implants were placed in the patients by computer aided design/ computer aided manufactured (CAD/CAM) surgical guides and their implant stability was measured using Ostell ISQ. The correlation of implant stability and many independent variables, including cortical bone thickness and bone density, was investigated using Pearson's correlation and multiple regression analysis. Results: The regression model accounted for 61.5% of the variations in the implant stability with an insignificant impact (p value=014). Age was found to be the only variable that has a significant impact on implant stability with a coefficient correlation of-0.47 and a p value of 0.03. Conclusions: Within the limitations of this study neither cortical bone thickness nor bone density obtained from a CBCT can predict primary implant stability. On the contrary, age seems to have a significant impact on the primary implant stability. Clinical implications: CBCT does not seem to be a valuable tool for predicting the primary implant stability. Bone density and thickness readings should be interpreted with cautions.

Research paper thumbnail of Occlusal Appliances Might Be Clinically Efficient in Treating Sleep Bruxism

Journal of Evidence-Based Dental Practice

Research paper thumbnail of Limited evidence suggests survival of non-splinted short implants (≤8.5 mm) is comparable to that of splinted implants

Journal of Evidence-Based Dental Practice

Research paper thumbnail of Limited evidence about clinical and radiographic outcomes of immediate implants supporting full-arch fixed prostheses: A critical summary

Advanced Dental Journal

This critical summary was conducted to achieve an evidence based decision about immediate implant... more This critical summary was conducted to achieve an evidence based decision about immediate implants supporting full arch fixed prostheses (FAFP). A randomized clinical trial (RCT) comparing periimplant health, radiographic outcomes and success of immediate versus delayed implants, supporting FAFP was selected and critically appraised by Cochrane tool for risk assessment of bias. In the RCT, a one-year follow up showed no significant difference between both treatment modalities regarding all clinical and radiographic outcomes, except for crevicular fluid volume in maxilla, which was 87.4 ± 60.5 for immediate and 34.7± 22.6 for delayed implants (p<0.05). Selection, co-intervention, assessment and attrition biases are highly suspected. Considering the biases that might be introduced in this trial, evidence about the results could be limited. Therefore, immediate implants are recommended limitedly based on proper case selection. RCTs with calculated sample sizes, standardized treatment and measurement procedures are still highly required to enhance the internal validity.

Research paper thumbnail of Effect of Smoking on Dental Implant Failure: A Systematic Review

Ain Shams Dental Journal

Objectives: The objective of this systematic review is to determine the prognosis of implant trea... more Objectives: The objective of this systematic review is to determine the prognosis of implant treatment in smokers if compared to non-smokers.

Research paper thumbnail of Smoking Might Increase the Failure Rate and Marginal Bone Loss Around Dental Implants

Journal of Evidence-Based Dental Practice

Research paper thumbnail of Extra-short implants may be a viable alternative to longer implants with bone augmentation in atrophic maxillary and mandibular ridges

Journal of Evidence-Based Dental Practice

Research paper thumbnail of Effect of framework material on the clinical outcomes of full arch implant supported prostheses remains unquantifiable

Journal of Evidence-Based Dental Practice

Research paper thumbnail of The Evidence is Unclear on the Effectiveness of Platelet Rich Fibrin in Socket Preservation

Journal of Evidence-Based Dental Practice

Research paper thumbnail of Immediate implant placement utilizing vestibular socket therapy versus early implant placement with contour augmentation for rehabilitation of compromised extraction sockets in the esthetic zone: A randomized controlled clinical trial

Clinical Implant Dentistry and Related Research

Research paper thumbnail of Implant prognosis in irradiated versus non-irradiated nasal, orbital and auricular sites

International Journal of Oral and Maxillofacial Surgery, 2019

The purpose of this systematic review was to evaluate implant survival in irradiated nasal, auric... more The purpose of this systematic review was to evaluate implant survival in irradiated nasal, auricular, orbital sites and to compare them with non-irradiated respective sites. Four electronic databases and seven related journals were searched until December and March 2018, respectively. A total of 7892 articles were identified, 18 of which were included in this review; one non-randomized clinical trial, two prospective cohort, eight retrospective cohort and seven cross-sectional studies. Using the ROBIN-I Cochrane tool for risk assessment, 13 studies were judged at serious, one at moderate and four at critical risk of bias. Thirteen were included in 18 meta-analyses, the results of which showed a significant difference between irradiated and non-irradiated sites, favouring non-irradiated with risk ratio (RR) = 0.93, 95% confidence interval (CI) 0.89-0.97, P=0.001. Comparisons among nasal, auricular and orbital sites revealed no significant differences, whether in irradiated or non-irradiated patients at P<0.05. Hence, it was concluded that, within the limitations of this review, survival of craniofacial implants is negatively affected by radiotherapy, especially in orbital sites. Level of evidence is moderate. Therefore, further prospective cohort studies with calculated sample sizes, restricted or properly managed confounders and no deviations from intended interventions might produce different results.

Research paper thumbnail of Clinical Management of Kennedy Class II Cases Using Osseointegrated Dental Implants

who guided me in a very generous manner throughout the whole practical work.

Research paper thumbnail of Vestibular socket therapy with immediate implant placement for managing compromised fresh extraction sockets: A prospective single-arm clinical study

PURPOSE To assess hard and soft tissues regenerated around immediate implants placed in compromis... more PURPOSE To assess hard and soft tissues regenerated around immediate implants placed in compromised fresh extraction sockets using vestibular socket therapy 2 years postoperatively. MATERIALS AND METHODS Twenty-seven compromised fresh extraction sockets were managed using vestibular socket therapy and immediate implant placement. After immediate implant placement, a cortical bone shield was stabilised through a vestibular incision. The socket defect was filled with particulate bone graft. Labial plate thickness and bone height were evaluated 1 and 2 years postoperatively using CBCT. The pink aesthetic score and probing depth were recorded after 6 months, 1 year and 2 years. A Friedman test was used to study changes in the reported outcomes over time, with the level of statistical significance set at P ≤ 0.05. RESULTS All implants recorded a 100.0% survival rate. A statistically significant increase in bone height (0.93 mm, P = 0.004) and apical (0.12 mm, P = 0.026), midfacial (1.26 ...

Research paper thumbnail of Satisfaction with resilient denture liner versus acrylic resin telescopic prostheses for patients with ectodermal dysplasia: A nonrandomized crossover clinical trial

STATEMENT OF PROBLEM Patients with ectodermal dysplasia are characterized by anodontia or oligodo... more STATEMENT OF PROBLEM Patients with ectodermal dysplasia are characterized by anodontia or oligodontia. How their challenging prosthodontic rehabilitation might be optimized is unclear. PURPOSE The purpose of this crossover study was to evaluate the effect of resilient denture liner versus acrylic resin copings in complete overdentures for patients with ectodermal dysplasia. Outcome measures included patient satisfaction, retention, and periodontal health of the abutment tooth. MATERIAL AND METHODS Ten partially edentulous participants diagnosed with ectodermal dysplasia were recruited from the Faculty of Dentistry, Cairo University, Egypt, and enrolled in this crossover clinical trial. All participants received acrylic resin coping-retained maxillary complete overdentures (group N, stage 1). The acrylic resin copings were then replaced by a resilient denture liner (group S, stage 2). Patient satisfaction, retention, and periodontal health parameters were evaluated 1 week and 3 month...

Research paper thumbnail of Evidence is limited about the equivalence of bar/clip and ball/O-ring attachments in edentulous patients restored by implant overdentures

The journal of evidence-based dental practice, 2021

ARTICLE TITLE AND BIBLIOGRAPHIC INFORMATION Gonçalves F, Campestrini VLL, Rigo-Rodrigues MA, Zana... more ARTICLE TITLE AND BIBLIOGRAPHIC INFORMATION Gonçalves F, Campestrini VLL, Rigo-Rodrigues MA, Zanardi PR. Effect of the attachment system on the biomechanical and clinical performance of overdentures: A systematic review. J Prosthet Dent. 2020 Apr;123(4):589-594. doi: 10.1016/j.prosdent.2019.03.024. Epub 2019 Sep 18. PMID: 31,542,217. SOURCE OF FUNDING Nothing was mentioned about funding sources for the review TYPE OF STUDY/DESIGN: Systematic review with meta-analysis.

Research paper thumbnail of Fracture Resistance of Relined Microwave-Cured High Impact Versus Conventional Heat-Cured Acrylic Resin Mandibular Denture Bases: An in Vitro Study

Egyptian Dental Journal, Apr 1, 2018

Aim: This in vitro study aimed at comparing the fracture resistance of microwave-cured high impac... more Aim: This in vitro study aimed at comparing the fracture resistance of microwave-cured high impact and conventional heat-cured acrylic resin mandibular denture bases, whether relined by a resilient liner or not. Materials and methods: Conventional heat-cured (C) and high impact microwave-cured (H) acrylic resins were used in the fabrication of 24 mandibular denture bases divided into 4 groups (n=6). Half of these bases were 4 mm in thickness to be used unrelined (CU and HU), the other half was prepared in reduced thickness (2 mm thick) to be relined (CR and HR) with addition silicon resilient liner (R). The denture bases were loaded in compression at the canine-premolar areas bilaterally until failure, using a universal testing machine. Data on fracture resistance (N), work of fracture (J) and deflection at fracture (mm), were analyzed by Kruskal-Wallis and Dunn's test (P≤0.05). Results: Among the unrelined (CU and HU) and the relined (CR and HR) bases, there were insignificant differences regarding the fracture resistance and the work of fracture median values. Fractures/cracks were repeatedly observed either unilaterally or bilaterally at the premolar regions of the bases. The CU bases exhibited the statistically lowest significant median deflection value at fracture compared to all other denture bases which were insignificantly different from each other. Conclusions: Relining of mandibular denture bases with resilient liners reduced their fracture resistance, work of fracture and increased their amount of deflection at fracture regardless to the type of the denture base material. Economically, conventional acrylic resin denture base material is still the material of choice for dentures that would require relining with resilient liners.

Research paper thumbnail of Post-Surgical Neurosensory Dysfunction of Inferior Alveolar Nerve in Bilateral Sagittal Spilt Osteotomy of the Mandible using Saw versus Piezotome: A Systematic Review and Meta-Analysis

Journal of Evidence Based Dental Practice

Research paper thumbnail of Limited evidence suggests complete arch digital scans are less time efficient than conventional impression

Research paper thumbnail of Limited Evidence Suggests No Benefit of Temporomandibular Joint Lavage Over Conservative Treatment for Temporomandibular Joint Pain and Dysfunction

Journal of Evidence Based Dental Practice

Research paper thumbnail of Marginal Bone Loss of Two Immediately Loaded Narrow Versus Standard Diameter Implants Retaining Mandibular Overdentures: A Randomized Controlled Pilot Study

Egyptian Dental Journal

Purpose: To evaluate peri-implant marginal bone loss in two immediately loaded narrow versus stan... more Purpose: To evaluate peri-implant marginal bone loss in two immediately loaded narrow versus standard diameter implants retaining mandibular implant overdentures.

Research paper thumbnail of Predictability of Primary Implant Stability from Cortical Bone Thickness and Bone Density Values of Cone Beam Computed Tomographic Scans: A Cross Sectional Study

Egyptian Dental Journal

Statement of Problem: Prediction of primary implant stability is important before surgery to dete... more Statement of Problem: Prediction of primary implant stability is important before surgery to determine the possibility of immediate loading. Purpose: To evaluate the predictability of primary implant stability from cortical bone thickness and bone density values of cone bone beam computed tomography (CBCT). Material and Methods: 10 completely and partially edentulous patients were scanned by CBCT, while wearing radiographic templates. Bone density and cortical bone thickness of the planned implant sites were measured for all patients. 23 implants were placed in the patients by computer aided design/ computer aided manufactured (CAD/CAM) surgical guides and their implant stability was measured using Ostell ISQ. The correlation of implant stability and many independent variables, including cortical bone thickness and bone density, was investigated using Pearson's correlation and multiple regression analysis. Results: The regression model accounted for 61.5% of the variations in the implant stability with an insignificant impact (p value=014). Age was found to be the only variable that has a significant impact on implant stability with a coefficient correlation of-0.47 and a p value of 0.03. Conclusions: Within the limitations of this study neither cortical bone thickness nor bone density obtained from a CBCT can predict primary implant stability. On the contrary, age seems to have a significant impact on the primary implant stability. Clinical implications: CBCT does not seem to be a valuable tool for predicting the primary implant stability. Bone density and thickness readings should be interpreted with cautions.