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Ahmed S. Salem

Bio: Ahmed S. Salem is an academic researcher from Mansoura University. The author has contributed to research in topics: Dentistry & Medicine. The author has an hindex of 8, co-authored 17 publications receiving 177 citations. Previous affiliations of Ahmed S. Salem include The Catholic University of America & St. John's University.

Papers
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Journal ArticleDOI
TL;DR: It is concluded that the observed wide variation in the reported incidence of IAN injury is due to a lack of standardized assessment procedures and reporting, and an international consensus meeting is needed in order to establish a standard-of-care method.

79 citations

Journal ArticleDOI
TL;DR: T-Scan is good for assessing occlusion discrepancies and can be used to portray the pre- and post-operative occlusal contact distribution during treatment planning and follow-up, and was better after surgery than before surgery.
Abstract: Dental occlusion varies among individuals, and achieving correct physiological occlusion after osteotomy is essential for the complex functioning of the stomatognathic system. The T-Scan system records the centre of force, first contact, maximum bite force, and maximum intercuspation. The aim of the present study was to investigate the usefulness and consistency of T-Scan in assessing occlusion before and after orthognathic surgery. Occlusal information was evaluated for 30 healthy adults with normal occlusion and 40 patients undergoing orthognathic surgery. T-Scan had a high degree of reliability for consecutive measurements (Pearson correlation, r = 0.98). For most parameters, occlusal distribution was better after surgery than before surgery. More teeth contributed to occlusion at maximum intercuspation after surgery than before surgery (14 vs. 10). In addition, the difference in the posterior force distribution was reduced after surgery (17.6 ± 13.8 vs. 22.7 ± 21.4 before surgery), indicating better occlusal force distribution after surgery. The maximum percentage force on teeth (p = 0.004) and the number of teeth contributing to occlusion (p < 0.001) also differed significantly. Thus, T-Scan is good for assessing occlusal discrepancies and can be used to portray the pre- and post-operative occlusal contact distribution during treatment planning and follow-up.

42 citations

Journal ArticleDOI
TL;DR: This study confirms the findings previously reported by the research group that the modified inferior border osteotomy technique in SSO results in a substantial lower frequency of persisting inferior border defects.

28 citations

Journal ArticleDOI
TL;DR: Surgeons should be aware of the shortcomings of nerve tracing in the different regions of the mandible and a wider safe margin is recommended whenever nerve tracing instead of well-recognizable anatomical bony landmarks is used for surgical planning that need precision.
Abstract: The objective of the study is to assess the correlation between the mandibular canal tracing done on cone beam CT (CBCT) data, with the size, shape, and position of the neurovascular bundle (NB) obtained by magnetic resonance imaging (MRI). Six human cadaver mandibles were scanned with a CBCT Promax® scanner (Planmeca, Helsinki, Finland) and with an Ingenia® 3.0 T MR system (Philips, Amsterdam, The Netherlands). The NB was segmented from the MRI dataset, while the mandibular canal (MC) tracing was done on the CBCT images. Quantitative 3D analysis was made for the full-segmented nerves and for three defined regions of specific clinical interest, namely angle, body, and mental region. From the 3D MRI analysis, the nerve thickness (for the angle, body, and mental region) ranges from 0.8 to 5.2 mm, while the thickness of the mandibular canal tracing is approximately 2.00 mm on both sides as chosen in the tracing software. The mean volume of the NB on the left is 828.49 ± 215.54 mm3 and on the right 792.98 ± 264.57 mm3. For the nerve tracing, the mean value is 351.92 ± 16.42 and 339.69 ± 16.12 mm3 on the left and right sides, respectively. Wilcoxon signed-rank test showed significant differences between NB and MC volume measurements (p = 0.0005). The Bland-Altman plots show an increasing slope for thickness and volume, indicating that the absolute differences between neurovascular bundle, estimated by MRI, and the mandibular canal, drawn on the CBCT images, increase with larger mean values. Surgeons should be aware of the shortcomings of nerve tracing in the different regions of the mandible. Tracing of the inferior alveolar nerve (IAN) underestimates shape and volume. Whenever nerve tracing instead of well-recognizable anatomical bony landmarks is used for surgical planning that need precision, a wider safe margin is recommended.

21 citations

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TL;DR: Coronectomy did not increase the incidence of damage to the inferior alveolar nerve and would be safer than complete extraction in situations in which the root of the mandibular third molar overlaps or is in close proximity to the mandibia canal.
Abstract: The purpose of present study was to assess the surgical management of impacted third molar with proximity to the inferior alveolar nerve and complications associated with coronectomy in a series of patients undergoing third molar surgery.

19 citations


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Journal ArticleDOI
TL;DR: The aim of this review is to critically appraise the currently available data on diet and maintenance of periodontal health andperiodontal healing and to discuss the effects of nutritional intervention studies to improve the quality of life and well-being of patients with Periodontal disease.
Abstract: Periodontal health is influenced by a number of factors such as oral hygiene, genetic and epigenetic factors, systemic health, and nutrition. Many studies have observed that a balanced diet has an essential role in maintaining periodontal health. Additionally, the influences of nutritional supplements and dietary components have been known to affect healing after periodontal surgery. Studies have attempted to find a correlation between tooth loss, periodontal health, and nutrition. Moreover, bone formation and periodontal regeneration are also affected by numerous vitamins, minerals, and trace elements. The aim of this review is to critically appraise the currently available data on diet and maintenance of periodontal health and periodontal healing. The effects of nutritional intervention studies to improve the quality of life and well-being of patients with periodontal disease have been discussed.

134 citations

Journal ArticleDOI
TL;DR: The structural and functional diversity of gold, silica, iron oxide, and lanthanide-based nanocarriers provide unrivalled control of nanostructural properties for effective transport of therapeutic cargos, overcoming biobarriers on the cellular and organismal level.

127 citations

Journal ArticleDOI
TL;DR: The goals of orthognathic surgery are outlined, highlighting advances in the field and current controversies, and soft-tissue considerations are highlighted, especially in the context of osseous genioplasty and fat grafting to the face.
Abstract: Learning Objectives:After studying this article, the participant should be able to: 1. Identify skeletal differences that are treated with orthognathic surgery; describe the goals of orthognathic surgery; and understand modern virtual surgical planning of orthognathic movement of the mandible, maxil

104 citations

Journal ArticleDOI
TL;DR: While most patients undergo orthognathic surgery for aesthetic purposes, aesthetic improvements are most often followed by postoperative functional complications, therefore, patients must carefully decide whether their purpose of undergoing orthognATHic surgery lies on the aesthetic side or the functional side.
Abstract: While most patients undergo orthognathic surgery for aesthetic purposes, aesthetic improvements are most often followed by postoperative functional complications. Therefore, patients must carefully decide whether their purpose of undergoing orthognathic surgery lies on the aesthetic side or the functional side. There is a wide variety of complications associated with orthognathic surgery. There should be a clear distinction between malpractice and complications. Complications can be resolved without any serious problems if the cause is detected early and adequate treatment provided. Oral and maxillofacial surgeons must have a full understanding of the types, causes, and treatment of complications, and should deliver this information to patients who develop these complications.

101 citations

Journal ArticleDOI
TL;DR: It is found that the exogenous administration of melatonin significantly inhibited wear debris-induced bone resorption and the expression of inflammatory cytokines in vivo and melatonin inhibits receptor activator of nuclear factor kappa-B ligand induced osteoclast formation and osteoclastic bone Resorption in vitro.

83 citations