Biography:

Mahmoud Rajab he has completed his Ph.D. at the age of 35 years from Scientific Research Institute of Dentistry at the Ukrainian Academy of Sciences, Odessa city.  have published more than 12 papers in reputed journals, obtained in collaboration with the supervisors of the patent (the principle of using laser and electromagnetic waves in the treatment), and other patent for the manufacture of integrated device prototype model.

Abstract:

Evolution used laser at the beginning of this century, particularly in dentistry, we have begun to develop a plan for scientific research in the use of laser in orthodontics. The increase of deformation and jaw disorders at children nowadays leads to the need of new complete developed ways of orthodontic treatment. The increase of deformity and up normality of jaws at children happens with accordance of diseases of gingival tissues and caries; consequently, it leads to hardships of orthodontic treatment.

*The environmental situations which cause effects upon immune system with disorder of accommodation in orthodontic treatment.

*Hygiene, quality and types of materials used during treatment.

Thus, orthodontic Treatment leads to:

 1- Bad immunological state in body system and reformation of bon tissues in the area of moved teeth. 

2 - Destruction of bone tissues and difference in the blood

circulation in gingival tissues.

3 – Up normality of reaction of oral cavity.

     It is necessary to invent new multi-system ways which improve orthodontic treatment, in addition to decreasing of teeth caries and gingival tissues inflammation with correction of reactions in oral cavity.

 Those issues mentioned are some of important problems that have not been followed carefully in traditional orthodontics.

Advantages of laser orthodontics for patients:

With no doubt, we have a big advantage towards the conventional treatment.

It is commonly believed to think of orthodontists as the people who activate brackets. By using laser nowadays, you have technical possibilities to adjust the laser settings in a way that you can treat a patient in an integrated way without teeth caries or gingival tissues inflammation in addition to the correction of reactions in oral cavity,  and Shortening of the period of treatment,  Help in fixing teeth after orthodontic treatment, Activating osteo and gingival cells though, you are still very effective. So, this is a very big advantage. And in addition to the known benefits of the laser effect.

we well notice a correction of reaction resulted during orthodontic treatment with Laser and E. M Waves in the Oral Cavity, we will see:

*   The change of activity of Non-Oxidizing Enzymes of Saliva. Also we will see decreasing of protein, katabsen –D and lactase  concentration,  high concentration of calcium and phosphor     This is confirmed in the case of improving functional reactions in the organism, the low level of inflammation in the oral cavity, Active construction and demolition operations in the bone tissue, change of the activity of enzymes increases: the activity of alkaline and acid-phosphates, There are many factors that have changed such as activity PH and other things affecting the mouth  and physiological  status that we will talk about later.

The main goal obtained here is to get a new model of the use of combined application of lasers and electromagnetic waves (EMW), low density. It is a partnership between the laser and (EMW) in the use of combined therapy at different stages of orthodontic treatment; in which the red laser and infrared are absorbed by protein molecules cells.

Biography:

Attila Kámán has complète his degree at University of Medical Sciences Medical and Dental faculty named after Semmelweiss, and postdoctoral studies, MSc- Master of Science of Implantology at University Münster, Germany. He is the chef surgeon of the Implant center Dental und Maxillofacial Clinic in Budapest. He is leading and maintaining 6 Clinics in 4 countries (London, Geneve, Bern, Zürich/ Kloten, Budapest, Dublin). Chairman of the Association of Leading Hungarian Dental Clinics.
 

Abstract:

Objective: The purpose of this lecture is to examine the incidence rate of early and late failure of dental implants and associated prosthetic problems with reference to a total number of 28.000 implants placed between 1992-2018 in patients requiring partial and full-arch rehabilitation. We have compared the nowadays popular and cost-effective all-on-4 all-on-6 rehabilitation solution with 8-10 implants placed in the maxilla, and 6-8 in the mandible.

Results: Following the adaptation of various dental implant systems, our retrospective study shows that the rate of late implant failure and the associated prosthetic problems were lower in case of increased number of implants. We suggest that the result is due to the balanced distribution of the functional load on the implant and bone, the improved stress distribution against the opening force of the mandible and the overload of posterior implants.

Conclusion: The benefits of the all-on-4 and all-on-6 rehabilitation solution include that (the sometimes risky) bone grafting in the posterior mandible can be avoided, furthermore, the increased inter implant distance ensures improved blood supply. However, excessive overloading of the implants may lead to screw fracture, prosthetic fracture and bone loss. In case of unexpected complications, the increased number of patient visits make the cost-effective all-on-4, all-on-6 treatment concept a subject to controversy. When comparing the risks and complications of the all-on-4, all-on-6 rehabilitation solution with posterior mandibular bone grafting procedures, we can find similar results. 

Biography:

Vidal Perez is a pediatric dentist who completed his Ph.D. in translational research at The University of Melbourne in November 2015. He worked in Mike Hubbard’s Lab (studying the molecular pathogenesis of Molar Hypomineralisation) and is part of The D3 Group (a translational research network focused on better understanding and care of people with developmental dental defects; www.thed3group.org). Currently, he is Director of the Specialization Program in Pediatric Dentistry at the Department of Pediatric Stomatology, School of Dentistry, University of Talca, Chile. He has important publications and has been serving as an editorial board member of repute in Latin America.  

Abstract:

Molar hypomineralization (MH) is a particular type of enamel defects characterised by demarcated opacities mainly affecting 6-year molars of about 1-in-6 children worldwide. Affected molars have greater susceptibility to post eruptive breakdown, extensive caries and, in severe cases, are difficult to restore. When MH molars present severe crown destruction, it is necessary to perform an intermediate restoration to preserve the remaining dental structure in order to maintain occlusion, proper hygiene and periodontal health. Traditional restorations are not suggested in case of severe MH molars. Amalgam requires excessive removal of dental tissue to obtain adequate mechanical retention, leaving the tooth structurally weak and prone to fracture. Resins also present problems since their adhesion to MH-affected enamel is inadequate, favouring microfiltration, which may result in restoration failure. Preformed metallic crowns have been suggested as a more definitive option; however, periodontal problems associated with molars restored with this technique discourage their use as permanent restoration. In these difficult clinical conditions, glass ionomer cement (GIC) seems to be the restorative material of choice for the interim treatment of severe MH molars due to its favourable adhesive properties to enamel/dentin. However, in extensive restorations, GIC usually fractures, leading to retreatment, thus increasing the occurrence of painful clinical experiences and pulpal damage. Here we propose a novel approach to improve the robustness of GIC. After filling the MH molar with modified GIC, an orthodontic band is fitted as a strong metallic casing preserving gingival/pulpal health and tooth structure for at least 18 months.

Biography:

Elham Romoozi has completed her postdoctoral studies from the dental school of Tehran University of medical science. She has published more than 10 papers in reputed journals.
 

Abstract:

Background and Aims: In the panoramic images, palatoglossal space error develops when the patient is unable to put the tongue against the mouth roof. In the case of this error, the radiographic diagnosis of the area is made with some difficulties or ever the image may lose its diagnostic ability. The aim of the present study was to investigate the relationship between the palatoglossal space error of the panoramic images and skeletal relationship.

Materials and Methods: In this descriptive cross-sectional trial, 494 panoramic images were selected at the orthodontic department of Tehran dental school archive and the existence of the palatoglossal space was determined. The palatoglossal space error was statistically analyzed using chi-square test regarding the patients’ gender, age and skeletal relationships.

 Results: Of total panoramic images, 346 (70.0%) cases showed palatoglossal space error while 148 (30.0%) images were free from this error. Furthermore, 74.1% of male images and 66.9% of female images showed palatoglossal space error. In Cl, I (1Ë‚ANB≤3), Cl II and Cl III patients 65.6%, 73.1% and 67.4% of the images demonstrated the error, respectively. The incidence of palatoglossal space error in 5-14 and 15 years old age or higher patients were 72.2% and 58.8%, respectively.

 Conclusion: It was concluded that no significant difference was noted between the incidences of the palatoglossal space error regarding the patients’ gender or their skeletal relationships. The error frequency was significantly decreased with age.

Keywords:Relationship, Panoramic radiography, Skeletal

Biography:

Maryam-Sadat Sadrzadeh-Afshar Oral and Maxillofacial Medicine specialist is now Assistant Professor of Dentistry Faculty of AJA University of Medical Science. She has been doing her research on oral mucositis, lichen planus and facial muscle pain. The present study is part of the results of oral and maxillofacial research that has been carried out over a period of more than one year.
 

Abstract:

Masticatory muscle pain is the second most frequent cause of orofacial pain after dental pain. Myofascial pain dysfunction syndrome (MPDS) is the most common form of temporomandibular joint dysfunction. MPDS is a pain that triggers from [sensitive] points in the muscles and fascia and is followed by spasm, tenderness to palpation, restricted movement, fatigue, and sometimes dysfunction. The researchers intended to collect comprehensive information about therapeutic interventions for myofascial pain through the conduction of a critical study based on evidence in the literature. In this review, 51 English articles, published between 1981 and 2013, were extracted from PubMed, Medline, Ovid, and Google Scholar. These articles were then reviewed in detail in two categories, namely pharmaceutical and non-pharmaceutical treatments. MPDS treatment should be first focused on the identification and correction of underlying causes. Thiocolchicoside (TCC), non-steroidal anti-inflammatory drugs (NSAIDs), and Cox-2 inhibitors are among promising pharmaceutical methods. On the other hand, ultrasound and laser therapy are among promising non-pharmaceutical methods. The complex mechanism of MPDS, along with its underlying peripheral and central nervous mechanisms may make MPDS, difficult to treat, especially in its chronic form.

Biography:

Mona Hamedani Golshan has completed her DDS from Tehran University of Medical Science (TUMS). TUMS Dentistry School is renowned for the excellence in education and practice in Iran and around the globe. She demonstrates her excellence in research on social dentistry by presenting a highly valued research. She is a both practicing dentistry in IRAN and USA.

Abstract:

Background and Aims: This study aimed to assess the severity of tooth decay and related factors in children 5-7 years old, in 2016, in Tehran. Materials and Methods: A descriptive and cross-sectional study was performed on 572 children aged 5-7 years old (300 girls and 272 boys) in public schools in Tehran, Iran. The severity of dental caries (number of decayed, missing, filled surfaces) recorded for C, D and E teeth according to WHO criteria. Data analysis was performed by Backward Linear Regression Analyses using SPSS 20 (P≤0.05). Results: Assessment of dental caries severity according to the number of decayed surfaces showed generally higher figures in the upper jaw. The order of average severity of carious teeth was C, E, and D from low to high in both jaws. According to the results of Linear Regression Analysis, severity of dental caries was more than other children in boys (OR=1.83, 95%CI: 0.81- 2.8), those visited dentist due to dental problems associated with pain (OR=1.17, 95%CI: 0.73- 1.6), and those without fluoride therapy (OR=1.64, 95%CI: 0.58-2.6) in C, D and E teeth. Conclusion: Flow the results, it was concluded that gender, level of mother's education, type of snack consumption, start age of tooth brushing, the reason for the dental visit and fluoride therapy affected the severity of tooth decay. Keywords: Dental caries, Diet, Oral hygiene, Dmfs index

Biography:

Ahmed Alshabab has completed his post-doctoral training in periodontics and dental implants from University of Pennsylvania School of Dental medicine USA in 2016. He received Master of Science degree in oral biology from the same institution in 2016. Conferred the fellowship of the Royal College of Dentists of Canada in Periodontics in 2016 and Diplomate of the American Board of Periodontology in 2017. He is the assistant professor of Periodontics and dental implants at Najran University Faculty of Dentistry. Saudi Arabia. He is vice-dean for development and quality at Najran University Faculty of Dentistry. Saudi Arabia.

Abstract:

When a tooth extracted, the alveolar bone around it will tend to resorb. The reduction in alveolar ridge width and height after tooth extraction is evident in the literature. Dental implants can be used to replace teeth after extraction. However, in some situations, the bone resorption reaches to the point where replacement with dental implants become impossible. Ridge deficiency could be in bone height or width or in more advanced cases associated with soft tissue deficiency. Conditions, where alveolar bone/soft tissue is reduced, may result in biological/functional and or esthetic failures. A procedure known as Ridge Preservation may limit such reduction of alveolar bone following teeth extraction. The purpose of the ridge preservation procedure is to keep the width and height of the extraction socket. Many techniques, bone graft, membranes, and biologics have been introduced in this filed. The aim of the paper is to review several techniques and materials used for ridge preservation and suggest a flowchart for decision making in ridge preservation procedure.

 

 

Biography:

Samaneh Keshavarz has completed her PhD from Shahid Sadoughi University of Medical Sciences, Iran. She has published about 6 papers in reputed journals and has published 2 books.

Abstract:

Statement of the Problem: Tooth extraction is the most common surgical procedure performed in dental office. Various drugs are used to accelerate wound healing in soft and bone tissues. In this study, the effect of 0.2% chlorhexidine gel and 10% betadine gel on tooth socket healing was investigated.

Materials & Method: This experimental study was performed on 45 male mice randomly divided into three groups of 15. Under general anesthesia, the right maxillary second molar of all the mice were extracted. The socket of the first group was covered with 0.2% chlorhexidine gel and the second group was covered with 10% betadine gel and the socket of third group was left empty. On the third, seventh and fourteenth days after surgery, one third of the animals were sacrificed from each group. Then the prepared slides from each group were examined.

Result: The extent of granulation tissue on the third day after tooth extraction in the chlorhexidine group was greater than the remaining two groups. The number of lymphocytes on the seventh day after tooth extraction in the chlorhexidine group was lower than the control group. The number of macrophage on the 14^th day after tooth extraction in the chlorhexidine and betadine groups was lower than the control group. The numbers of fibroblasts in the chlorhexidine group on the fourteenth day after tooth extraction was higher than the control group. These differences were statistically significant.

Conclusion & Significance: According to the results of this study, 0.2% chlorhexidine gel can accelerate the process of tooth socket healing.

 

Biography:

Dr.Iru Prajapati (Endododntist) from Nepal ,had completed her MDS on 2016 from Xi’an Jiaotong University,Xi’an ,China and BDS from Manipal University.

She is working as endodontist in Oracare Periodontal Clinic , Kathmandu.Her publication article as second author in JNDA of Nepal.

 

 

Abstract:

Teeth with same angle of curvature can have different position of cuvature(PC).  With this we come to know that beside the  shape and angle of a root canal , there is another contributing factors which influence in the removal of separated instrument is position of curvature(PC). .

PC value lower than 0.5 represented curvatures that were concentrated in the cervical third; PC value ranging from ≥0.5 to < 2.0 represented curvatures concentrated in the middle third; and, PC value above 2.0 represented curvatures in the apical third . Using this method on the radiograph of the extracted teeth, PC was noted more on the middle and apical third. PC at cervical third was discarded because fracture made at this position can be easily removed. So the fracture of file was made at the apical third of selected root canal. Fracture file from root canal was attempted to remove using dental operating microscope and ultrasonic tips. Furthermore using CBCT comparative 3D volumetric analysis was done using mimics software.

The aim of this study was to evaluate the removal of separated file from different position of curvature (PC) and angle of curvature ranging from ≥30° - ≤45° within  the time limit 30 minutes ,and also determine the comparative 3D volumetric analysis of root canal using CBCT.It also further aimed to help the clinician & endodontists to perform a benefit/risk analysis before removal of a separated instrument in a root canal with different PCvalues.

Biography:

Dr Meera Acharya is recently graduated from Guangxi Medical University, Nanning China in Conservative and Endodontics and is presently working in a private Hospital in the home town in Nepal.

 

Abstract:

Introduction: To compare the coronal sealing ability of SOR flowable Composite with other materials (f.iJ!E?K Z350 XT and GIC Fuji type II) and investigate the influence of different adhesive systems E?J19 V and Prime & Bond NT) on the sealing performance of SOR flowable Composite when used as an intra orifice barrier after root canal treatment.

Methods: 54 freshly extracted human mandibular first premolar teeth with single canal were selected for the experiment and root root canal treated. After completion of RCT the teeth were divided into two groups: experimental and control. The experimental group was further divided into four sub groups as XT group, SP group, SP group and GC group and the cont  394 words group was divided into two groups as PC group and NC group. The coronal 3.5 mm of gu. percha were removed from all the samples in the experimental group and and the prepared cavity is restored with the different restorative materials used in the experiment like f. iJ! E? - 9Q XT, SDR flow and GIC Fuji type II. The samples in the control group is simply left as it is with gutta percha till the coronal orifice. All the samples were then incubated for one yy  h,Jh! TLQP.Y J. Q in hot and cold baths simultaneously for 500 cycles and finally stained   in 1% Methylene blue solution for another one week in the incubator. The samples were then split longitudinally, and the depth of dye penetration was measured under a Stereomicroscope.

Results:

The rojs.; r: q.(P<0.05) l ft Sil.9 index of the SX group was significantly lower than the other groups while the coronal sealing ability of GC group was significantly lower than that of the other groups (P<0.05) and was not significantly different than the control group (P<0.05) CONCLUSION: GIC Fuji Type II can be considered unsuitable as an intra orifice barrier while SOR flowable composite in combination with J19 V can be used as an ideal intra orifice barrier after the completion of root canal treatment.

Biography:

Hari Parkash has completed his Bachelor’s from Punjab University in 1965 and his Masters in Prosthodontics in 1968. He has been conferred Fellowship in Dental Surgery by Royal College of Physicians and Surgeons of Glasgow (2007), Fellowship in Dental Surgery of the Royal College of Surgeons of England (2013) and Fellowship of Royal College of Surgeon (Edinburg) in 2017. He was also Project Director for the NOHCP of GOI, for six years. He has authored and co-authored over 296 scientific papers both in national and international journals. He has an experience of 51 years as an Academician and Clinician.

Abstract:

McGill’s consensus recommended a two-implant supported mandibular overdenture as the basic minimum care to be delivered for the rehabilitation of edentulous patients. It is generally believed that two or four implants if splinted provide a better distribution of forces to the implants and increase the longevity of the treatment. However, unsplinted implants have also shown to give comparable results. One of the methods to analyze implant success is the bone quality around the implant. CBCT allows for an estimation of bone quality around the bone implant interface and is feasible in human studies as published in 2017 by Wuhan University, China. Thus, a study was undertaken to compare the bone quality around four endosseous implants placed in each of eight patients, immediately after placement and six months after prosthetic loading with mandibular overdenture using unsplinted Dalla bona attachments. Bone quality was assessed at four junctions of the implant length from apex to crest module at varying intervals of time using CBCT. The post implant placement scans and post implant loading scans were analyzed using the fusion tool in CBCT software to enhance the standardization of the procedure. The study concluded that four unsplinted implants using Dalla bona attachments is a favorable treatment modality for implant supported mandibular dentures. 24 implants out of 32 implants analyzed showed no significant decrease in bone quality values. In the intergroup comparison among implants placed in different positions no significant change (p>0.05) in bone quality was observed post loading.

 

Biography:

Praful Mehra has completed his Postgraduation in Prosthodontics in 2011 from India. He is Fellow of International Congress of Oral Implantologists, Diplomat of World Congress of Oral Implantologists Japan, Fellow of International College of Dentists and Fellow of Pierre Fauchard Academy. He was involved in teaching for six and half years after his post-graduation and was a PG Guide and Co-Guide for more than 8 researches. He was awarded Best Postgraduate Prosthodontics by ICD Section 6 in 2012. He has publications at both national and international level and maintains a private practice in New Delhi.

Abstract:

Guided implant surgeries aided with cone beam computed tomography and stereolithography or three D printing has helped enhance precision in implant surgeries making them more prosthetically oriented. Recently many companies are coming up with universal open guide systems. However, it becomes imperative to know the level of accuracy of the universal open guide systems. Thus, a study was undertaken to analyze and compare the deviations in the position and inclination of the virtually planned and actually placed implants using universal open surgical guide. The purpose of this study was to determine and to compare the precision of 3-D image-guided implant rehabilitation in vitro. The implant positions and angulations were determined using a vision measuring machine. For the purpose of this study, a total of 24 implants were placed in 8 replaceable bone blocks which simulated the mandibular posterior edentulous bone. In each bone block, 3 implants were placed. These 24 implants were then evaluated for accuracy in linear (mesio-distal and vertical directions) and angular measurements. The baseline measurements were the C.B.C.T derived planning for implant placement. Descriptive statistics was calculated for each variable of the group B (Guided Implant placement) with respect to the control group (C.B.C.T) using ‘1-Sample T-test’ in relation to each parameter studied i.e. vertical distance, linear distance and perpendicularity. It was concluded that the stereolithographic universal open guide used in the study may be considered accurate for placement of implants in horizontal or mesio-distal position and also in terms of perpendicularity but not in vertical position.