Scientific Program

Conference Series Ltd invites all the participants across the globe to attend 30th Annual Conference on Dental Practice and Oral Health Hong Kong.

Submit your Abstract
or e-mail to

events@conferenceseries.com
dentalpractice@dentalcongress.com
dentalpractice@dentalcongress.com

Scientific Program Day 1
Scientific Program Day 2
Scientific Program Day 3

Day 2 :

Keynote Forum

Jukka P. Matinlinna

The University of Hong Kong, hong Kong

Keynote: Restorative Materials Tomorrow

Time : 10:00-11:00

Conference Series Dental Practice 2017 International Conference Keynote Speaker Jukka P. Matinlinna photo
Biography:

Jukka P. Matinlinna is tenured professor in dental materials science at the University of Hong Kong (HKU), Faculty of Dentistry. His main field of research, in addition to undergraduate and postgraduate dental teaching and education, is dental materials with regard to adhesion, material development, adhesion promotion, and system simulations. His special focus is on contemporary and future dental biomaterials in prosthetic dentistry and implant dentistry; silane chemistry; adhesion promotion aspects; saliva chemistry; dentin bonding; resin bonding to zirconia and porcelain, Ti and Ti alloys; experimental primers and resins; E-glass fiber–reinforced composite (FRC) restorations; and finite element analysis (FEA). Since 2004 he has contributed to more than 160 peer-reviewed indexed publications, 40 professional journal publications, 25 book chapters, 170 conference and symposium abstracts, and 85 invited/keynote lectures. Professor Matinlinna has acted as guest editor and is a member of editorial boards of several dental journals. In 2015 he was awarded HKU Faculty Outstanding Teacher Award, Faculty of Dentistry.

Abstract:

We are using restorative dental materials to restore or help in restoring missing, diseased, and traumatized teeth, tooth structures and tissues. Dental materials and, in general, biomaterials have been initialized and developed at dental schools. Dentists are the only authorized end users of dental biomaterials. Novel, innovative emerging dental materials are at the front position of new technologies ‎in dentistry. Dentistry has been moving rapidly toward adhesive and noninvasive direction, the so-called conservative dentistry. Dental materials science is an integral, multidisciplinary domain in dental sciences. Materials in dentistry are predominantly synthetic, such as resin composites, silver amalgam, dental cements etc. Restorative dental materials can be classified according to the principles of direct application ‎as a) direct restorative materials and b) indirect restorative materials. Direct restorative materials ‎such as resin composites, silver dental amalgam, and glass ionomer cements are used directly inside ‎the oral cavity to restore the function of teeth. Some of them are aesthetic. Indirect ‎restorative materials, such as porcelain fused to metal (PFM), high content gold alloys, non-precious ‎metal alloys, and indirect resin composites are prepared in a dental laboratory. But are the current dental materials already optimal and can they serve well and long enough? What different type of dental materials do we have in clinical use today? What is so special in the materials one is using in dentistry? To which direction are dental materials going? Do we have adhesive dentistry also in the future? How about 3D printing and dentistry? These are some of the questions this talk is addressing. The chemical and physical properties of restorative materials are also covered in a concise but clinically exciting and comprehensive way. Basic concepts of e.g., adhesion and bonding of dental restorative materials are also introduced.

  • Orthodontics and Dentofacial Orthopaedics | Oral Implants Research | Periodontology and Restorative Dentistry
Location: A
Speaker

Chair

Wan Zaripah Wan Bakar

Universiti Sains Malaysia, Malaysia

Session Introduction

Kholoud Alahdal

Security Forces Hospital, KSA

Title: Ceramic Veneers where to start from and how to decide
Speaker
Biography:

Kholoud Y AlAhdal has completed her Saudi Board in Restorative Dentistry in 2006, certified from Saudi Commission of Health Specialties as a Consultant in 2009.She is the Program Director of Saudi Board in Advance Restorative Dentistry in Security Forces Hospital, Riyadh, KSA and is a Member in the Local and Scientific Committee of Restorative Dentistry in the Saudi Commission of Health Specialties.

Abstract:

This presentation is designed for general dental practitioners to start from proper diagnosis and good case selection to definitive treatment plan through focusing on indications and contra indications of ceramic veneers. The principles in esthetic dentistry (smile analysis and smile design) with different approaches: Digital, conventional wax up, mockup will be discussed. This lecture will discuss types of preparation, the use of preparation index and impression techniques, temporization and finally detailed step by step bonding procedure and cementation techniques.

Golmoradizadeh Ali

University of Philippines, Philippines

Title: The Last 50 Years Of Orthodontics
Speaker
Biography:

Golmoradizadeh Ali has graduated from Centro Escolar University in 2013 as Doctor of Dental Medicine and completed MS Orthodontics from University of
Philippines. He is a Faculty Member of Hormozgan University, Iran. He is an Associate Editor of Journal of Evaluation of Medical and Dental Sciences.

Abstract:

Background: There is a vast volume of published orthodontic articles that may be accessed from the internet. The accumulated
publications are good sources of information that may be used as basis for the formulation of evidence-based clinical treatment plans.
Objective: The aim of this study was to quantify the number of published articles on orthodontics and its relation to the other
fields in dentistry in the past five decades.
Materials & Methods: A systematic review was conducted in MEDLINE via PubMed from 1966 until 2015. With the Endnote
X7 software, a range of the most relevant search terms relating to orthodontics, periodontics, functional appliances, lingual
orthodontics, self-ligating technique, mixed dentition, endodontics and mini implant were used. The captured orthodontic
articles were then arranged according to categories in relation to the other fields in dentistry.
Results: An immense number of orthodontic articles appeared in the different categories each year. Among these articles,
lingual orthodontics was the most fascinating topic for researchers, while mini implants and self-ligating brackets apparently
need more future studies.
Conclusion: The review of orthodontic articles in the past five decades may help future researchers who want to investigate and
study orthodontics. It can serve as a parameter to indicate which fields necessitate additional supplementary studies.
Biography
Golmoradizadeh Ali has graduated from Centro Escolar University in 2013 as Doctor of Dental Medicine and completed MS Orthodontics from University of
Philippines. He is a Faculty Member of Hormozgan University, Iran. He is an Associate Editor of Journal of Evaluation of Medical and Dental Sciences.

Yassir Abdelrahman Hag Elkhidir

Suihua Stomatological Hospital, China

Title: The osteogenic effect of photofunctionalization on gold nanoparticles applied on biomimetic titanium surfaces
Speaker
Biography:

Dr.Yassir has completed his MDS in oral surgery and Implantology in 2014 at Huazhong university of Science and technology and was awarded the full PhD scholarship for outstanding students. Upon completion in 2017, he was the first Sudanese to obtain such a degree in the field of Oral Implantology. His works on titanium surface modification has resulted in remarkable improvements in the speed and extent of bone regeneration. Currently he is working in the department of oral implantology and dentofacial surgery at Suihua, the first affiliated stomatological hospital of Jinan University - Guangzhou, P.R.China.

Yasir@live.cn

Abstract:

Objectives: The aims of this study were to create a new surface topography using simulated body fluids (SBF) and gold nanoparticles (GNPs), to assess the osteogenic effect of the new surface on osteoblastic differentiation with and without UV photofunctionalization.

Materials & Methods: Commercially pure titanium plates (cpTiO2) were divided into six groups with different modifications. All 6 groups were acid etched with 67% sulfuric acid (H2SO4), four were immersed in simulated body fluid (SBF) for 24 hours to create a hydroxyapatite layer and two groups were treated with 13 nm gold nanoparticles (GNPs) for 24 hours. Half of the TiO2 plates were photofunctionalized (PhF) with UV light for 48 hours to be compared with the non-PhF ones. The main experimental groups were 3B which had H2SO4+SBF+GNPs+PhF and 2B which had the same treatment except for GNPs. Rat’s bone marrow stem cells (rBMSCs) were seeded into the plates and then CCK8 assay, cell viability (live/dead) assay, immunofluorescence and electron scanning microscopy were done after 24 hours. Gene expression analysis was done using real time quantitative PCR (qPCR) was done 1 week later to check for the mRNA expression of Collagen-1 (Col-1), Osteopontin (OPN) and Osteocalcin (OCN). Alkaline phosphatase (ALP) activity was performed after 2 weeks of cell seeding.

Results: Results were analyzed using Prism 5.0 statistical package. One-way analysis of variance was done for multiple comparisons and t-tests for individual comparisons. 3B which had all the treatment modalities showed the highest results and was compared to the closest group 2B. Optical density was almost 50% higher than the control group and significantly higher than 2B with a P value <0.0156) in 2B to 79% (p value <0.0147) in 3B. qPCR results showed the highest increase in the expression of osteogenic genes in 3B. When compared to 2B, 3B showed a significant increase in the expression of all the genes with P values of 0.0238, 0.0238 and 0.0038 for Col-1, OPN and OCN, respectively. 3B also showed just above 20% more increase in the ALP activity when compared to 2B.

Conclusion: We have created a novel hybrid micro-nano titanium surface. TiO2 plates were acid etched, coated with a hydroxyapatite layer using SBF to create biomimetic topography, photofunctionalized and seeded with 13 nm gold nanoparticles. This new surface has a remarkably more osteogenic potential than other surface treatments. The 13 nm GNPs did not show any cytotoxicity. Imunoflourescence and ESM results showed that it highly increased the rate of differentiation, proliferation, attachment, spreading and mineralization. PCR results showed enhanced gene expressions of Col-1, OPN and OCN osteogenic markers. ALP activity was also higher than the other groups. GNPs play an important role in cellular activity and growth. Photofunctionalizing GNPs highly increases its ostogenic capabilities. Our novel topography might be the most biocompatible titanium surface treatment up to date and it may have a good potential in further enhancing the osseointegration process and improving outcomes for maxillofacial and orthopedic patients.

 

Severine Anthony

Copperbelt University, Zambia

Title: Periodontal health status and treatment needs among psychiatric patients attending Ndola Central Hospital, Zambia
Speaker
Biography:

Severine Nyerembe Anthony has completed his Master’s degree in Restorative Dentistry from Muhimbili University of Health and Allied Sciences in Tanzania. He is the Head of Department of Dental Clinical Sciences of the Copperbelt University, Zambia. He has published 9 papers in reputed journals.

Abstract:

This study aimed at assessing periodontal health status and treatment needs among psychiatric patients attending Ndola Central Hospital, Zambia. Cross section hospital based study was conducted between March and May 2015. Periodontal health status and treatment needs were recorded using Community Periodontal Index of Treatment Need (CPITN) according to 1987 WHO Surveys. Data was entered into a computer using Epi Info and analyzed using SPSS 16. Chi-square test (significant level of ≤0.05) was used to test associations between independent variables and periodontal health. A total of 110 psychiatric patients were enrolled in the study whereby 80 (72.7%) were males. Most (61.8%) of the patients were of age less than 35 years. Schizophrenia was the most common diagnosis (73.6%) and the average duration of diagnosed psychiatric illness was 5 years. Healthy periodontal tissues were found in 24.5% of the patients. Bleeding on probing, dental calculus, shallow pockets and deep pockets were recorded in 3.6%, 25.5%, 29.1% and 17.3% of the patients, respectively. Education (AOR for secondary education: 0.51, 95% CI [0.30, 0.87]) and age (AOR for 35+ years: 1.73, 95% CI [1.07, 2.82]) were significantly independently associated with poor periodontal health. Treatment requires include oral hygiene instructions (3.6%), prophylaxis (54.6%) andcomplex periodontal treatment 17.3%. All the inpatients 21 (19%) reported not to brush their teeth during admission period. Majority of the patients had poor periodontal health signifying need for deliberate tailor made periodontal prevention and treatment program among psychiatric patients. Age and education were significantly associated with poor periodontal health.

  • Endodontics | Dental Research | Clinical and Experimental Dentistry
Speaker

Chair

Jukka P Matinlinna

The University of Hong Kong, Hong Kong

Session Introduction

Kholoud Alahdal

Security Forces Hospital, KSA

Title: Dental Bleaching
Speaker
Biography:

Kholoud Y AlAhdal has completed her Saudi Board in Restorative Dentistry in 2006, certified from Saudi Commission of Health Specialties as a Consultant in 2009.She is the Program Director of Saudi Board in Advance Restorative Dentistry in Security Forces Hospital, Riyadh, KSA and is a Member in the Local and Scientific Committee of Restorative Dentistry in the Saudi Commission of Health Specialties

Abstract:

Now we are at the time that personal appearance is important in our life style, teeth whitening or bleaching is the most popular esthetic dental treatment that enhances the appearance. People frequently ask dental professionals questions about dental bleaching and its efficacy and biological safety. The lecture will answer many questions that every general dental practitioner wants to know to answer patients and to have optimum results. The presentation will cover types and natures of teeth stains, the importance of case evaluation and selection before starting dental bleaching. It will cover briefly types and materials of dental bleaching, then short discussion for the indications and contraindications of dental bleaching. Some important tips during bleaching will be covered and finally focuses on safety factors.

Wan Zaripah Wan Bakar

Universiti Sains Malaysia, Malaysia

Title: Interractive lecture and the acceptance level among lecturers in PPSG, USM, Malaysia
Speaker
Biography:

Wan Zaripah Wan Bakar has completed her graduation in 1992 and served the Ministry of Health, Malaysia for 9 years. In 2013 she has completed her Post
Doctorate Research Fellow program at the UTHSCSA, Texas in the United States. She is currently working as a Senior Lecturer and Consultant Prosthodontist/ Restoratives at University of Science, Malaysia. She has published more than 30 papers in reputed journals. She has frequently invited as a speaker in workshop or conferences locally and internationally.

Abstract:

Interactive lecture (IL) is still new things terminologically to School of Dental Sciences (PPSG), University of Science, Malaysia. Unnoticeably many lecturers has practiced it during teaching and learning activities even they are seems unaware and lack of knowledge about IL. The claims of heavy workload and less time especially by clinician might hinder the use of IL in teaching and learning. A study has been done to find out the acceptance level for IL by dental lecturers at current time and after some exposure through intervention for the future and further planning and application at the school. Two sets of the same self-administered questionnaires were used in the study where the questionnaires consist of 4 sections (A, B, C and D) that will take about 15-20 minutes to complete. 71% has responded for pre-intervention where 37/52 (71.15%) are clinicians and 15/52 (28.85%) is basic sciences lecturers; whereas only 51.4% responded for post-intervention. Generally, lecturers at PPSG accept the application of IL, agree about the important and show interest in applying it in their teaching. No significant difference of all acceptances to IL components tested in this study between clinician and basic sciences lecturers. Clinical lecturers gave more reasons/problems for not applying it mostly claims due to lack of knowledge, time limitation, unsatisfactory supports
and facilities especially internet at the university and not suits the clinical teaching condition. Concern and strategies need to be found to improve this problem.

Yassir Elkhidir

Suiwah Stomatological Hospital, China

Title: Ultraviolet Photofunctionalization for Speed Osseointegration
Speaker
Biography:

Abstract:

Osseointegration is a prerequisite of successful implant stability and is by far the most important factor to consider before establishing any further treatment. Biological ageing of titanium is the time-related degradation of the physiochemical properties of the implant surface. Ultraviolet photo-functionalization (PhF) reverses the ageing process, increases the BIC
to almost 100% in what is known as super-osseointegration and therefore increases the strength and the primary stability of implants while decreasing the average healing time. PhF regenerates the lost hydrophilicity caused by biological ageing of titanium and converts titanium surfaces from hydrophobic to super-hydrophilic. It also optimizes the electrostatic status of the
surface reverting it from electronegative back to the electropositive status found on fresh titanium surfaces. PhF also removes the significant amount of hydrocarbon that unavoidably accumulates on the surface by time leaving more space for cellular attachment. At molecular level it was shown that PhF of titanium surfaces increases protein absorption enhances osteogenic
migration and attachment, as well as osteoblastic proliferation and differentiation. Clinically, PhF allows for more treatment options as shorter and thinner implants can be utilized more frequently without any compromise to the treatment outcome. PhF therefore improves prognosis, decreases morbidity and has a significant impact on clinical practice.

  • Endodontics | Dental Research | Clinical and Experimental Dentistry
Speaker

Chair

Jukka P Matinlinna

The University of Hong Kong, Hong Kong

Session Introduction

Kholoud Alahdal

Security Forces Hospital, KSA

Title: Dental Bleaching
Speaker
Biography:

Kholoud Y AlAhdal has completed her Saudi Board in Restorative Dentistry in 2006, certified from Saudi Commission of Health Specialties as a Consultant in 2009. She is the Program Director of Saudi Board in Advance Restorative Dentistry in Security Forces Hospital, Riyadh, KSA and is a Member in the Local and Scientific Committee of Restorative Dentistry in the Saudi Commission of Health Specialties.

Abstract:

Now we are at the time that personal appearance is important in our life style, teeth whitening or bleaching is the most popular esthetic dental treatment that enhances the appearance. People frequently ask dental professionals questions
about dental bleaching and its efficacy and biological safety. The lecture will answer many questions that every general dental practitioner wants to know to answer patients and to have optimum results. The presentation will cover types and natures of teeth stains, the importance of case evaluation and selection before starting dental bleaching. It will cover briefly types and materials of dental bleaching, then short discussion for the indications and contraindications of dental bleaching. Some important tips during bleaching will be covered and finally focuses on safety factors.

Wan Zaripah Wan Bakar

Universiti Sains Malaysia, Malaysia

Title: Interractive lecture and the acceptance level among lecturers in PPSG, USM, Malaysia
Speaker
Biography:

Wan Zaripah Wan Bakar has completed her graduation in 1992 and served the Ministry of Health, Malaysia for 9 years. In 2013 she has completed her Post
Doctorate Research Fellow program at the UTHSCSA, Texas in the United States. She is currently working as a Senior Lecturer and Consultant Prosthodontist/ Restoratives at University of Science, Malaysia. She has published more than 30 papers in reputed journals. She has frequently invited as a speaker in workshop or conferences locally and internationally.

Abstract:

Interactive lecture (IL) is still new things terminologically to School of Dental Sciences (PPSG), University of Science, Malaysia. Unnoticeably many lecturers has practiced it during teaching and learning activities even they are seems unaware and lack of knowledge about IL. The claims of heavy workload and less time especially by clinician might hinder the use of IL in
teaching and learning. A study has been done to find out the acceptance level for IL by dental lecturers at current time and after some exposure through intervention for the future and further planning and application at the school. Two sets of the same self-administered questionnaires were used in the study where the questionnaires consist of 4 sections (A, B, C and D) that will
take about 15-20 minutes to complete. 71% has responded for pre-intervention where 37/52 (71.15%) are clinicians and 15/52 (28.85%) is basic sciences lecturers; whereas only 51.4% responded for post-intervention. Generally, lecturers at PPSG accept the application of IL, agree about the important and show interest in applying it in their teaching. No significant difference of all acceptances to IL components tested in this study between clinician and basic sciences lecturers. Clinical lecturers gave more reasons/problems for not applying it mostly claims due to lack of knowledge, time limitation, unsatisfactory supports and facilities especially internet at the university and not suits the clinical teaching condition. Concern and strategies need to
be found to improve this problem.

Yassir Elkhidir

Suiwah Stomatological Hospital, China

Title: Ultraviolet Photofunctionalization for Speed Osseointegration
Speaker
Biography:

Yassir Abdelrahman Hag Elkhidir has completed his MDS in Oral Surgery and Implantology in 2014 from Huazhong University of Science and Technology, China. His work on titanium surface modification has resulted in remarkable improvements in the speed and extent of bone regeneration. Currently he is working in the Department of Oral Implantology and Dentofacial Surgery at the First Affiliated Stomatological Hospital of Jinan University in China.

Abstract:

Osseointegration is a prerequisite of successful implant stability and is by far the most important factor to consider before establishing any further treatment. Biological ageing of titanium is the time-related degradation of the physiochemical properties of the implant surface. Ultraviolet photo-functionalization (PhF) reverses the ageing process, increases the BIC
to almost 100% in what is known as super-osseointegration and therefore increases the strength and the primary stability of implants while decreasing the average healing time. PhF regenerates the lost hydrophilicity caused by biological ageing of titanium and converts titanium surfaces from hydrophobic to super-hydrophilic. It also optimizes the electrostatic status of the surface reverting it from electronegative back to the electropositive status found on fresh titanium surfaces. PhF also removes the significant amount of hydrocarbon that unavoidably accumulates on the surface by time leaving more space for cellular attachment. At molecular level it was shown that PhF of titanium surfaces increases protein absorption enhances osteogenic migration and attachment, as well as osteoblastic proliferation and differentiation. Clinically, PhF allows for more treatment options as shorter and thinner implants can be utilized more frequently without any compromise to the treatment outcome. PhF therefore improves prognosis, decreases morbidity and has a significant impact on clinical practice.

Aditi Jain

Ayush University of Medical Science, India

Title: Antibacterial efficacy of neem, triphala, green tea and combination of neem with triphala extract against Enterococcus faecalis: An in vitro study
Speaker
Biography:

Abstract:

Aim: The main objective of root canal treatment is to disinfect the entire root canal system and irrigation is an important step in reducing the bacterial load from the root canal system. However, irrigants currently used in the field of endodontic have their share of limitations, the search for an ideal root canal irrigants continues. The use of herbal extracts as endodontic irritants is today gaining popularity. This study is to evaluate and compare the antimicrobial potential of herbal extracts such as neem (Azadirachta indica), triphala (Terminalia chebula), green tea (Camellia sinensis) and combination of neem and triphala as endodontic irrigants against Enterococcus faecalis.
Materials & Methods: Freshly prepared extracts of neem, triphala, green tea and 2% chlorhexidine were used to assess the antimicrobial efficiency against Enterococcus faecalis using the agar well diffusion test. Agar plates were incubated at 37 oC for 24 hours in an incubator. The diameter of bacterial inhibition zones around each well was recorded to the nearest size in mm. Results: Higher mean zone of inhibition was recorded in chlorhexidine followed by neem extract combination of neem and triphala than triphala and green tea extract, respectively. The lowest mean zone of inhibition was found in green tea extract.
Conclusion: From the present study, it can be concluded that neem leaf extract shows comparable zones of inhibition with that
of chlorhexidine and combination of neem and triphala.

Sanjeev Kunhappan

Government Dental College, India

Title: Taming the “LEO” (Lesion of Endodontic Origin)
Speaker
Biography:

Sanjeev Kunhappan is a Conservative Dentistry and Endodontics and has completed his BDS from College of Dentistry, Indore during 1996-97. Then he worked in College of Dental Sciences as a Lecturer for 6 years. He was then selected by Public Service Commission for the post of Lecturer in Government Dental College, Raipur, India in 2005. He has completed his MDS in 2012 and has published more than 10 papers in reputed journals. His interest is mainly towards non-surgical endodontic

Abstract:

A periapical lesion is formed within an area of existing apical periodontitis, the foci of infection being the degenerating pulpal tissues within the root canal system. This pulpal degeneration is caused by the microbes that enter the pulp chamber from oral cavity. These periapical lesion regresses as soon as the microbial etiology present within the root canal is removed by nonsurgical root canal therapy. Mere surgical removal of the periapical lesion, without proper root canal disinfection and three dimensional obturations are not sufficient for its complete healing. Non-surgical endodontic treatment using triple antibiotic
paste (TAP) as intra-canal medicament to disinfect the root canal system followed by mineral trioxide aggregate (MTA) for three dimensional obturations offers a high success rate in the healing of large periapical lesions. These clinical cases highlight the healing of large periapical lesions with conservative non-surgical endodontic treatment, followed-up over a period of 2-3 years.