Poster Presentations

Poster Presentations

Abstract

Introduction: Dental implants are one of the most important aspects of dental treatment. There are several methods for improvement of functional status of dental implant. Periimplantitis is an inflammation with bacterial etiology that is characterized with supportive bone loss and inflammation of surrounding tissue. The aim of this study was Assessment of the effect of YSGG-YAG Laser on periodontal bacterial growth in Ti-6Al-4V implant discs with different surface treatment methods. Material and method: In this study we compare effect of different methods (laser, electrical discharge machining, sandblasting and milling) as surface treatment on Ti-6Al-4V wettability and periodontal bacterial growth. Wettability test, scanning electron microcopy (SEM) for assessment of surface microstructure was used. The samples were cultured in bacterial (actinobacillus actinomysetoma comitans) suspension and for disc decontamination we used YSGG-YAG laser with 1 watt power. Colony counting of bacteria after laser irradiation was done with colony counter device. Results: YSGG-YAG laser significantly decrease bacterial load in all different surface treatments. Ti-6Al-4V discs that underwent surface treatment with laser showed more decrease in bacterial load. After laser irradiation in comparison with other samples (p-value: 0.047). In electrical discharge machinined samples, sandblasting and milling samples, bacterial load after laser irradiation decreased but there was no statistically significant difference between these groups. Conclusion: surface treatment with laser beam is preferred method for surface treatment of Ti-6Al-4V implant discs because of less wettability and lower bacterial adhesion.

Biography

Maryam Koopaie is currently working as an Assistant Professor at Tehran University of Medical Sciences, Tehran, Iran. She completed her Medical Education Short Course at Educational Development Center, Tehran University of Medical Education. She completed Doctor of Oral Medicine (DOM) from the Shahed University of Medical Science in collaboration with Department of Dermatology, Tehran University of Medical Science. Maryam Koopaie is a membership in various professional societies like Students' Scientific Research Center (SSRC), Exceptional Talent Development Center (ETDC), The International Association for Dental Research (IADR) etc. She received awards and honors like The first Rank of I.R.I "Board Certified" (Oral Medicine) from Ministry of Health and Medical Education of Iran, The best lecture award during the 3rd Congress of Laser Application in Dentistry, etc. She acts as a reviewer and published articles in international journals. She attended many international annual meetings and conferences.

Speaker
Maryam Koopaie / Tehran University of Medical Sciences
Iran

Abstract

Background: Remineralizing agents such as fluoride and casein phosphopeptide amorphous calcium phosphate (CPP-ACP) are well known treatment options for incipient enamel lesions(1, 2). An alternative approach to treat carious lesions that are not expected to remineralize or arrest by non-invasive measures could be the infiltration with low viscosity light curing resins. Thus, lesion progression is hampered or even arrested. As a positive side effect, the whitish appearance is at least instantly masked(3, 4). However, the efficacy of these treatments in primary teeth was not broadly investigated. Objectives: To assess microhardness, depth of resin infiltration, and color change of artificial enamel lesions in primary teeth treated with resin infiltration, CPP-ACP, and acidulated phosphate fluoride (APF) gel. Methods: Enamel lesions were created in a total of 55 primary teeth enamel specimens that were randomly distributed among three groups according to the method of evaluation; Group I: microhardness testing (n=30), Group II: Scanning electron microscope (SEM) analysis(n=10), and Group III: color change evaluation (n=15), consequently each group was subdivided into subgroups. Enamel lesions were treated with resin infiltration (ICON; DMG, Hamburg, Germany), CPP-ACP (GC Tooth Mousse; GC Corporation, Tokyo, Japan), or 1.23% APF Gel (Sultan Healthcare Inc, USA). Specimens were then evaluated for microhardness, and depth of resin infiltration, using Vickers microhardness testing, and scanning electron microscope (SEM), respectively,at three different stages; before enamel lesion formation, after enamel lesion formation, as well as after treatment application and pH cycling. For color assessment, readings of specimensbefore enamel lesion formation and after treatment applications and pH cycling were recorded using spectrophotometer for ΔE calculation. Results: Enamel specimens treated with resin infiltration showed the highest microhardness mean value compared to those of CPP-ACP and APF.SEM analysis revealed a depth of resin infiltration of 276 micrometers infiltrating the enamel structure, while CPP- ACP subgroup revealed some new crystals formed on the remineralized enamel surface, and some enamel cracks existed also indicating that it was not fully remineralized. APF subgroup was almost similar to CPP with less apparent crystal aggregation and demineralizing defects indicating better remineralization than CPP-ACP. All treatments showed acceptable color masking effect, yet resin infiltration had the best ability to mask the white color of enamel lesions. Conclusions: Resin infiltration has a great potential in increasing microhardness and infiltrating artificial enamel lesions in primary teeth compared to APF, and CPP-ACP. Moreover, resin infiltration showed the best color masking effect, yet all surface treatments were clinically acceptable. Thus,resin infiltration can be used as a fast and effective treatment option of incipient enamel lesions in primary teeth.

Biography

Dr. Sara Abdel Hakiem is currently working as assistant lecturer at Faculty of Dentistry, British University in Egypt, Egypt. She conducted Facial rejuvenation workshop at the International conference of Nahda University –Glasgow University. -October 2015: Dental Laser Technology workshop at the International conference of Nahda University –Glasgow University. -September 2007: Attended the Egyptian Maxillofacial Surgery Conference Nile Hilton, Cairo. -July 2008- August 2008: Observer at Montazah Primary Health care, Doha, Qatar. -September 2013: Quality Assurance Tournament, Ramses Hilton, Cairo Education History: -M.Sc - Master Degree in Pedodontics & Public Health, 2010-2015, Faculty of Dentistry, Ain Shams University. -B.D.S. - Bachelor of Degree of Dental Science, 2008, Faculty of Dentistry, Ain Shams University.

Speaker
Sara Abdel Hakiem / The British University
Egypt

Abstract

Objective: Mandibular incisor teeth can be challenging to replace satisfactorily and as there a number of treatment options available for any one clinical scenario it is possible that a patient may receive varying treatment depending on the dentist's preference for replacing missing mandibular incisors. The aim of study was to determine dentist's preferences on treatment options to replace missing lower incisors in patients of varying ages. Materials and methods: Fifty questionnaires together with clinical photographs, a radiograph, and study casts were given to dentists working in the Glasgow Dental Hospital and School and dentists working in a dental clinic in Libya. The questions included in the questionnaire were directed towards the assessment of dentist's preferences on treatment options to restore missing lower incisors in patients of different ages. Results: For the 18 year old group the most commonly used treatment options were both the use of an adhesive bridge (36%) and a fixed-fixed bridge (36%) although the overall preferred treatment option was the use of a dental implant (68%). Generally, the respondents were in agreement to use the same treatment options for the patient of 40 years old as for the 18 year old (82%). More than half (56%) of the respondents were in agreement to use the same treatment options for the 60 year old patient as for the 18 year old. Conclusion: Within the limitations of this study it can be concluded that there was a difference between some of the dentists in the preferred treatment for the replacement of missing incisors in the clinical scenarios presented in this study.

Biography

will be updated soon

Speaker
Esam Eshaweirf / Alasmaria University
Libya

Abstract

The use of Flinders Technology Associates (FTA® cards) produced and marketed by Whatman® International Ltd. UK for the inactivation and transfer of microorganisms has been tested in recent years. FTA® cards are composed of a cellulose membrane containing lyophilized chemicals capable of inactivating a wide range of microorganisms preserving their nucleic acids. The samples obtained can be processed in the laboratory from the inactivated virus in the paper of the card. The aim of this work was to demonstrate the advantages of using FTA® cards for inactivation, transport, and molecular diagnosis of VEN in allantoic fluid samples in young patients using fixed orthodontic treatment. Keywords - FTA, cards Flinders Technology, orthodontic treatment, Porphyromonagingivalis, Aggregatibacter, actinomycetemcomitans, gingival sulcus

Biography

Dr. Nicolas Z. Velasquez has completed his PhD from Sao Paulo State University is a full time Professor and Researcher at University A. of Aguascalientes Mexico and has made research projects involving the rapid palatal expansion in normal and fissure patients, later he focused in the field of dental adhesive materials (Universal systems adhesives) he made a study of Prevalence of the third molar impacted in dental school students and lately he has been is working in the field of orthodontic miniscrews and dental implants as orthodontic anchorage.

Speaker
Nicolas Zaragoza Velasquez / UNIVERSTY AUTHONOMUS OF AGUASCALIENTES
Mexico

Abstract

Temporomandibular joint (TMJ) disease and disorders refer to a complex and poorly understood set of conditions, manifested by pain in the periauricular area, TMJ, or muscles of mastication, limitations and deviation in mandibular range of motion, TMJ sounds during jaw function. These make the limitations in the ability to make the normal movement of speech, facial expression, eating, chewing, and swallowing. Occlusal stabilization splint is one of an effective mode of a conservative line of therapy which is generally fabricated for maxillary arch. Ideally, when a stabilization splint is placed intraorally, there is minimal change to the maxillomandibular relationship. Semiadjustable articulator are programmed using static records to replicate dynamic movements of the jaw. One of the occlusal determinants that have to be replicated by the articulator system is the occlusal plane. Replication of the occlusal plane by the articulator with the help of facebow transfer as close to what is found in the patient is a necessity for the fabrication of occlusal stabilization splint to overcome patient with TMD. Case Report. A 25-year-old male patient come with chief complain of hard and pain to open mouth, hard to chew, pain on left temporomandibular joint, clicking sound, and there is deviation mandibula. First treatment, muscle relaxation, and control one week later to see how the improvement of the treatment. Then, occlusal stabilization splint was made by using semiadjustable articulator aids. The splint was used 24 hours, except for eating and controls one week later.

Biography

Louisa Christy Lunardhi is a post graduate student of Prosthodontic Dentistry Department, Faculty of Dental Medicine Airlangga University, Indonesia. She is a clinician who is currently working on making dentures, taking care of patient with TMD. Besides, she also likes writing and researching. She has won the best poster presentation in Asia Pasific Dental and Oral Health Congress in June, 2017.

Speaker
Louisa Christy Lunardhi / Faculty of Dental Medicine Airlangga University
Indonesia

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