26^th Euro Dentistry Congress

Mucahid Dogan has graduated from the faculty of dentistry of Hacettepe university (Ankara) in the year of 2006. He attended a doctorate program in the field of Oral and Maxillofacial Radiology in the university of Erciyes (Kayseri) in 2007. He has been running his own private clinic since 2009 and his fields of interest are oral tissue engineering and dental implantology.

The article describes the treatment of an upper left posterior crest that was severely resorbed due to maxillary sinus enlargement of a 68-year-old patient with controlled diabetes and hypertension . The patient was undergone a sinus lift operation and two dental implants were placed simultaneously. The bone substitute used in the sinus lift was derived from patient’s own teeth that were extracted during the same session, half an hour prior to the sinus lift operation. And 18 cc blood was withdrawn from the patient to obtain platelete rich fibrin (PRF) in order to be mixed with the graft material and to be used as barrier membrane to cover the graft. The results were assessed after 5 months and 2 years by means of panoramic radiography and dental tomography and there was an obvious bone maturation and trabeculation in the grafted area which we believe to be due to the use of a noble bone substitute derived from patient’s own dentin and the use of PRF.

Dr. Kahena Soldati is a Dental Surgeon in Ribeirão Preto, SP - Brazil. He holds a bachelor's degree in dentistry from FORP / USP - Dentistry School of Ribeirão Preto, 2010. He acts as a general practitioner. It has been part of iDent since October 2012.

Antimicrobial peptides are components of the innate immune response with a strong antibacterial activity against various microorganisms, including periodontal pathogens. The aim of the present study was to compare the total levels of cathelicidin (LL-37) and alpha-defensins (HNP 1-3) in the gingival crevicular fluid of smokers and non-smokers patients and correlate with MMP-8, IL-1β and IL-10. 40 patients with chronic periodontitis, 20 smokers and 20 non-smokers were included. GCF samples from healthy (n=5) and diseased (n=5) sites were collected with absorbent paper strips. The LL-37 and HNP 1-3 quantification was done by sandwich ELISA and cytokines quantification by Multiplex assay. In smokers and non-smokers groups, diseased sites showed higher levels of LL-37 in comparison with healthy sites (p = 0.0167 and 0.048, respectively) and lower levels were found for HNP 1-3 in the same groups (p = 0.016 and 0.121, respectively). In smokers and non-smokers, diseased and healthy sites showed a positive correlation between LL-37 and MMP-8 (p = 0.0012; 0.032; p<0.0001; p = 0.0006, respectively) and IL-1β (p= 0.0004; 0.089; p<0.0001; p<0.0001, respectively), but showed a negative correlation between LL-37 and IL-10 (p = 0.324; 0.552; 0.018; 0.942, respectively). However, these two groups showed a negative correlation, in diseased and healthy sites, between HNP 1-3 and MMP-8 (p = 0.074; 0.0036; 0.369; 0.738, respectively) and IL-1β (p=0.0010; 0.0071; 0.248), except non-smokers healthy sites that showed a positive correlation with IL-1β (p=0.714), and showed a positive correlation with IL-10 (p<0.0001; p= 0.015; p = 0.0036; p<0.0001, respectively). Based on the results obtained, we conclude that levels of LL-37 are higher and HNP 1-3 lower, in sites with active periodontal diseases. LL-37 and HNP 1-3 stimulate the release of inflammatory mediators in different ways in periodontal disease, while smoking habit did not show any significant difference.

Dr. Ahmed graduated from The Faculty of Dentistry, Mansoura University which is one of the oldest and biggest universities of Egypt. He worked for 2 years in the Department of Oral and Maxillo Facial surgery in the teaching hospital at the same university where he improved his skills in minor oral surgeries, management of jaw fractures and TMJ problems. Dr.Ahmed worked also for Qena General Hospital (400-bed hospital) as a General Dental Practitioner dealing with all surgical, cosmetical, conservative and oral hygiene cases. In the year 2003, he joined the Egyptian Dental Association and became an active member.

Increasing demand for esthetic restoration. Has led to the greater use of all ceramic materials because of their improved biocompatibility and optical Properties Compared with metal ceramic restorations. A high–quality adhesion of the resin cement to tooth structure and restoration. Surface is primordial for the success of ceramic bonding. Several authors have described various surface treatment procedures to allow adhesion of all ceramic restoration. According to the majority of the studies creating a micro retentive surface texture and Saline priming are essential for such restorations. (1-3) The purpose of this study is to compare the shear bond strength of adhesive resin cements used with different types of modern ceramics 1-Three types of advanced ceramics. 2-Two types of adhesive resin cements. 3-Human dentin 90 ceramic disks will be fabricated (30 per each type of ceramic). Each type will be divided into 3 groups and treated with one type of the surface treatment. Each group will be divided into two sub group for using the two types of the cement Dentin specimen will be prepared as following human molar teeth will be embedded in auto polymerizing acrylic resin and will be stored in a physiologic saline. The occlusal third of the molars will be removed to expose a flat dentin surface just before cementation Two types of resin cement will be used for cementation between dentin and ceramic specimens then shear bond testing will be done using the universal testing machine. The collected data will be tabulated and statically analyzed.

Bachelor of Dental Surgery ( BDS ), Dubai Dental Clinic, UAE

It has been shown that dental implants tend to lose bone over time, which ultimately results in soft tissue loss. Recent studies, however, suggest that the design of implant-supported prostheses may contribute to peri-implant tissue stability. To evaluate retrospectively radiographic bone loss around implants supporting cantilevered pontics with either mesial or distal direction, and to identify the technical complications that may occur with mesial/distal cantilever fixed dental prosthesis. The Records of 14 partially dentate patients, aged between 45-83 years (mean age 69.4), who were treated from March 2003 to 2015, with mesial/distal cantilever implant-supported fixed dental prostheses were reviewed. For each implant, the radiographs from the time of implant loading were compared to radiographs from the last follow-up visit. There were evaluated regarding: 1- The distance from widest diameter of the abutment to the crest of the peri-implant bone. 2- The radiographic changes of marginal hard tissue height from the time of implant loading compared to the time of the last follow-up appointment. Technical complications were noted as (screw-loosening, prosthesis de-cementation and prosthesis loosening).