13^th International Conference and Exhibition on Dental Medicine August 08-10, 2016 Toronto, Canada

Biography:

Dr. Sheikh is a clinician scientist with degrees in dental hygiene, dentistry (BDS) and since has worked as a dental surgeon in hospitals and private practices for 2 years before proceeding to obtain an MSc degree in dental and biomaterials from Queen Mary, University of London (QMUL) with distinction. He then joined Altamash Institute of Dental Medicine (AIDM) as Head of the Department of Dental Biomaterials and Preclinical Dentistry and then proceeded to obtain a PhD from McGill University, Faculty of Dentistry. He currently works at Faculty of Dentistry, University of Toronto and the Mt. Sinai Hospital in Toronto, Canada.

Abstract:

The long-term success of dental implants depends upon the degree of osseointegration that can be achieved, which is largely determined by the volume and quality of bone available at the time of surgery. Bone height and volume is often diminished in patients due to the extended time after tooth loss and this is a major limitation impacting long term dental implant treatment success. Some of the commonly used surgical techniques for ridge augmentationu are (i) Osteoperiosteal flap (OPF); (ii) Distraction osteogenesis (DO); (iii) Block grafting; (iv) Guided bone regeneration (GBR) using membranes; and (v) Subperiosteal tunneling for minimally invasive approach to GBR. This talk discusses the development of bioceramic graft materials with superior biological properties to those currently available. Dicalcium phosphate cements, brushite and monetite, resorb faster in vivo than hydroxyapatite (HA). Monetite (unlike brushite) does not re-precipitate as HA in vivo, and demonstrates superior osteoconductive and osteoinductive properties. We have produced monetite disc grafts by varying processing conditions which alter their physical properties such as porosity, surface area and mechanical strength. Histological observations after 12 weeks of onlay grafting on rabbit calvaria reveal higher bone volume (38%) in autoclaved monetite grafts in comparison with the dry heat prepared monetite grafts (26%). The vertical bone height gained is similar for both the types of monetite grafts (up to 3.2 mm). This talk discusses and provides information regarding two types of monetite onlay grafts prepared with different physical properties that could be used for achieving more predictable vertical alveolar bone augmentation.

Biography:

Mohammad Samiei is an Assistant Professor of Endodontics at Tabriz University of Medical Sciences. He has a great experience in the field of Dentistry. He is a course Director, Lecturer and Instructor in Department of Community Dentistry.

 

Abstract:

Introduction: Stem cells are considered to be clonogenic, self-renewable and multipotent entities and thus can generate several differentiated cell types and play an important role in rebuilding tissues. Platelet-rich plasma (PRP) is fabricated from autologous blood and extensively used to promote soft and hard tissue healing. Mineral trioxide aggregate (MTA) is a biocompatible material with numerous clinical applications in endodontics such as pulp capping, pulpotomy, perforation repair, root-end fillings, and apexification. This study investigated effect of Platelet-Rich-Plasma (PRP) and MTA on angiogenesis of dental pulp stem cells transferred to polymeric scaffolds.

 

Materials & Methods: Dental pulp stem cells have been prepared in a form of equipped and the cell count was increased to 2 million cells. After passing the preparation processes, the polymeric wells that were made by poly caprolactone (PCL) and containing MTA, were inserted in plates and 100/000 cells were transferred to them. After 24 hours, PRP was added to the chambers of the case group. After 14 days of incubation, the cells were transferred to flow cytometry center for assessment of CD31 and VEGFR2 as the angiogenesis factors. The collected data of this study was analyzed statistically with SPSS.17 software.

 

Results: Findings show that on the Pcl-Cs-MTA scaffold in presence of PRP, human dental pulp stem cells can express 46+12/4% of VEGFR2. Meanwhile, the expression of this factor on cells cultured on Pcl-Cs scaffold alone was 29/1+4/3%. Furthermore, the factor CD31 was expressed 12/7+4/9% on the Pcl-Cs-MTA scaffold in presence of PRP. However, this factor was expressed only 10+4/1% on Pcl-Cs scaffold alone. This increase is significant in receptors of VEGFR2 but not in the receptors of CD31.

 

Conclusions: The present study showed that angiogenesis of pulp stem cells is increased in the presence of PRP and MTA. Therefore, it can be concluded that PRP and MTA can be used to enhance angiogenesis in pulp cells.

Biography:

Khaled A Elhayes is a Professor of Oral & Maxillofacial Surgery, Faculty of Oral & Dental Medicine, Cairo University and was a Consultant of Oral Maxillofacial Surgery and Dental Implantology at different well known hospitals of KSA, UAE and Qatar. He was a Chairman of OMFS Department, Faculty of Dentistry, 6 October University, Egypt. He has obtained his PhD degree in Oral & Maxillofacial Surgery (Orthognathic Surgery) in 2001 from Cairo University. He has many international publications in orthognathic surgery, maxillofacial traumatology, dental implants, TMJ, pain and laser applications in oral & maxillofacial region. He is a Member at Egyptian Association of Oral & Maxillofacial Surgeons (EAOMS) and Egyptian Dental Association (EDA).

Abstract:

Aim: The current study was conducted in an attempt to accelerate the healing process and minimizing the period of fixation of jaw fractures using low level laser therapy in respect to rate of callus formation.

 

Material & Methods: This study was performed on twenty dogs, all of them were subjected to intentional fracture in their mandibles in both sides (right and left) and then were fixed using intra-osseous wiring , they were divided into 2 groups. Group I (3weeks groups) has received low level laser therapy (LLLT) to their left sides for the area of fractures post-surgery for 9 sessions while the right sides not subjected to laser and served as a control. Group II (6weeks group) has received low level laser therapy (LLLT) to their left sides for the area of fractures post-surgery for 15 sessions, while the right sides not subjected to laser and served as a control. The left sides were subjected to diode laser of 980nm wavelength for 2 minutes touching the outer surface of skin towards the fracture line.

 

Results: There was a significant increase in bone density in the laser sides (left sides) of both groups comparing with the control sides (right sides).

 

Conclusion: Low level laser therapy was proved to have the ability to assist and accelerate the healing process of jaw fractures. It has a bio-stimulatory effect on osteoblast-like cells after laser irradiation and so shortens the duration of fixation of fractured bone.

Biography:

Dr.Swati Chitre has completed BDS from India, MSD in Operative and Preventive Dentistry from Indiana University and DDS from University of Detroit Mercy school
of Dentistry. She is currently wokring as a Clinical Associate Professor at the University of Detroit Mercy School of Dentistry.She teaches in the preclinic laboratrory
and clinics. Prevention of caries, Dental Sealants are the main areas of her research interest. She has presented posters and oral presentations in national dental
meetings for past few years. She also maintains her skills by practicing in private practice one day a week and devotes one day a month to serve the underserved
population.She is a reviewer for the reputed Journal of Operative Dentistry,Journal of Dental Research and had been serving as an editorial board member of
reputable Gavin Journal of Dental Sciences.

Abstract:

Different pretreatment methods have been investigated with the intention of enhancing the effectiveness of etching enamel surface
and improving sealant retention,and the tight micromenhanical adhesion to enamel surface essential for their success. However,
to the date there has not been a gold standard for cleaning pits and fissures prior to the application of etchant and sealant. A report
from American Dental Association Council on Scientific Affairs stated: There is limited evidence in favor of using air abrasion as a
cleaning method before acid etchnig to improve sealant retention.
Objectives: Audience will have a better understanding on current sealant recommendation,they will gain knowledge of different
fissure pretreatment methods and be able to place sealants using different fissure pretreatment methods..

Biography:

Farouk Khaled is currently a student in Ahram Canadian University studying Dental Medicine. He has been the President of Student Union in his 1^st and 2^nd year. He has earlier worked as Head of Public Relations in a company.

Abstract:

According to the national and nutrition examination survey, they have collected some information about the percentage of people that have tooth decay. The percent include that 92% of adult from 20 to 64 have caries and it increase among students in high school and or more than high school. People that go to their work for 6 or 8 hours, they eat on their work and taking snacks every hour or less than hour all this food debris become a good medium for bacterial growth and plaque formation. We must ask ourselves why we wait until our mouth become a home to plaque? There are a lot of toothbrushes in this world but no one of us can carry one of these brushes with him as it is long and we must carry the tube of the paste also so the problem is here. So my idea is about a design for a new toothbrush which is portable with a small size to be easily carry everywhere and the new in it we will not be in need to carrying toothpaste with us.

Biography:

Mohamed Saleh Elarbi is a renowned Professor in Ali Omar Askar Neurosurgery Centre, Libya. He has many publications to his credit.

Abstract:

Background: Injuries from different weapons used during war differ from injuries caused by other means to the face. Loss of both hard and soft tissues and damage to vital structures is common in these circumstances. Early intervention and proper management is required for these cases.

 

Objectives: This is a 4 years’ retrospective study of patients that sustained firearm induced maxillofacial injuries during war in Libyan Revelations. A total of 41 patients with 55 fractures and isolated soft tissue in 9 cases were treated in Ali Omar Askar Center for Neurosurgery, Maxillofacial Surgery Department Esbea, Tripoli.

 

Patients & Methods: injuries involved were in facial bones and soft tissues such as eyes, lips cheeks and tongue. From Feb. 2011 to December 2014 a total of 41 patients with maxillofacial firearm injuries to soft and hard maxillofacial region were studied. Patients were referred to our hospital with maxillofacial injuries, either after they had the initial treatment elsewhere or had the full management in our hospitals. Including the maxillofacial team, initial assessment and lifesaving procedures for all the accident and emergency cases were applied. Proper clinical and radiographic assessment, antibiotic therapy and wound debridement were done for all the patients and closure using local flaps was given when required. Treatment ranged from immediate intervention to 5 days.

 

Results: The pure soft tissue injuries were in 9 patients (14%), bony fractures involved mostly the mandible in 31 cases (48%): 37 males (90%) and only 4 females (10%) with a ratio of 9:1. The youngest patient was 15 years and oldest one was 60 years. The age groups involved were 21-30 years (44%) followed by 15-20 years (29%) and 31-40 years (24%) with only one patient aged 55 years (2%). 31 patients with mandibular fractures with mainly angle and body fractures constituting 26% and 23% respectively were found. 11 cases of maxillary fractures, 4 cases (36%) of both lefort I and dentoalveolar fractures with 3 cases (27%) involving lateral wall of maxillary sinus were found. 9 cases with isolated soft tissue involvement in the soft tissue around the mandible, forehead two cases each, cheek and tongue 3 cases (33%) were found. Associated injuries such as rupture of eye globe in one case, damage to facial nerve in 2 cases, fractures of cervical spine wing, tongue injury and loss of soft tissue in two cases were also detected. Postoperative wound infection was reported in two cases.

 

Treatments: Open reduction and rigid internal fixation were used in 24 patients out of 44 cases (55%), conservative treatment in 9 cases (20%) and inter-maxillary fixation in 3 cases (7%) were given. Four cases had foreign body removed from soft tissue in head and neck area with or without bony involvement.

 

Conclusion: Maxillofacial gunshot injuries with various types of arms and weapons lead to severe damage to facial bones and orofacial structures. This requires urgent surgical intervention to avoid postoperative infections. In this study, most of the patients did not show up for the follow up and to know the progress of the treatment done.