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Contact Details

  Street address:
Level 11, KGV Building
Missenden Road
CAMPERDOWN NSW 2050
 
Postal address:
Post Office Box M30
Missenden Road NSW 2050

Phone: (02) 9515-6111
Fax: (02) 9515-9610

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Oral Health

Our Research

The oral health research at SDH and SLHD Oral Health Service is committed to advancing scientific knowledge and improving oral health of our patients. We strongly believe that oral health is an integral aspect of general health. Poor oral health is likely to exist when general health is poor, and vice versa (AHMAC 2001). Our focus moving forward is to be part of multidisciplinary health research to improve health and well being of our population.

Our Goals are:

  • To position Sydney Dental Hospital as a high-quality, multidisciplinary research institute in addition to its community service provider role.
  • To encourage research and promote a culture of evidence based clinical practice within OHS.
  • To strengthen and improve the integration of basic, translational, and clinical research.

Key research themes, by department, include:

Orthodontics
The Orthodontics department is a leader in the management of Obstructive Sleep Apnoea in Adults and Growing Patients. There is evidence that certain jaw discrepancies are closely related with breathing and sleep problems. However, there are very few studies on the short and long-term effects of the correction of jaw discrepancies on the treatment of sleep apnoea and potential cardiovascular diseases.

Our actual and future studies aim to investigate how significant early treatment of jaw discrepancies in growing patients and the use of oral appliances and jaw surgery in adults can help in treating OSA, and also its short and long-term side effects, particularly in cardiovascular diseases. Other areas of research include Orthodontic Tooth Movement and Root Resorption, Orthopaedic Functional Appliances in the treatment of Jaw Discrepancies, Effects of Mechanical Vibration on Tooth Movement, Root Resorption, Bone and Condylar Growth and Accelerated Tooth Movement.

Periodontology
The Periodontics department is currently investigating the responses to a number of treatment protocols for periodontal disease and implants, changes to the periodontal complex which occur around both natural teeth and implants in response to different treatments in both human and animal models and inter-relationship between periodontal disease and atherosclerosis-induced diseases, such as coronary heart disease (CHD), stroke and peripheral artery disease, as evidenced by multiple studies and meta-analyses. In Australia, moderate to severe periodontal disease currently occurs in approximately 23% of the adult population and its prevalence increases with age and will continue to do so as more older adults retain their teeth. If the successful treatment of periodontal diseases and maintenance of periodontal health has a positive effect on the systemic diseases mentioned above, this would have a beneficial effect on both the well being of the patients as well as on the financial burden of the health care system.

Other areas of research include investigating:

  • The efficacy of different mouthwashes on plaque formation and gingival inflammation
  • The use of piezocision to promote orthodontic treatment
  • Histological changes initiated by piezocision
  • Efficacy of an air polishing device with a new powder in maintenance patients (SPT)
  • Changes to the health practices of both non-dental clinicians and patients with systemic disease such as HIV infection.

Oral Surgery and Diagnostic Imaging
The Department of Oral Surgery and Diagnostic Imaging has taken the lead role in training Oral Health staff in the management of medical emergencies, including developing the skills required to recognise, assess and provide treatment for someone who is deteriorating. The Department is also conducting research into how staff learn about medical emergency management, how well they retain the knowledge (given that it is not used often), and how the program be developed to best suit the needs of an outpatient health service. Other ongoing projects include looking at the role of bisphosphonates on dental treatment and B-cell Isotype Dysregulation in Pemphigus Vulgaris. The Diagnostic imaging is involved in research related to oral care for people with disabilities, the use of panoramic images as a potential indicator of undiagnosed thyroid disorder in symptomatic patients, pathology missed on panoramic radiographs and radiographic errors and quality of radiographs taken.

Forensic Odontology
We are addressing the challenge to the identification sciences within forensic science raised by the National Academy of Science Report of 2009. This challenges some of the underpinnings of identification sciences (bite marks, fingerprints, document examination, firearms examination). Among other recommendations was a call for validation studies. Two validation studies have been initiated in the field of forensic odontology. One involves skills in dental anatomy, with teeth collected in the Sydney Dental Hospital and The Canterbury Hospital used to make reproductions of teeth to assess skills in dental anatomy among students, practitioners and registered specialist odontologists. The second study is aimed at assessing skills in a core activity - matching antemortem and postmortem radiographs. This involves an online study which has been sent to all odontology organizations internationally. This study is still in the data collection phase. A third validation study aimed at assessing the skills of odontologists at age estimation using dental radiographs is planned.

Endodontics
Ongoing projects include an investigation into the amount of apical debris extruding in three rotary/reciprocating techniques of root canal preparation, a study into why tooth fail and are extracted within 12 months of the completion of the root canal treatment, a meta-analysis of treatment modalities employed in treating the endodontic emergency, an analysis of the effect of smoking on endodontic success and the uptake and utilization of endodontic treatment in metropolitan and regional AMS clinics. Recently completed research has involved surveys into the techniques and material used by Australian Endodontists, a survey into the endodontic techniques used by general practitioners in the state of Queensland, a meta-analysis of irrigant modalities used by dentists and endodontic specialists throughout Australia, the overall success rate of endodontic treatment carried out in a large teaching hospital, the long term success of various treatment modalities utilized in the pulp-capping of permanent teeth, procedural errors in endodontic procedures carried out by final year dental students and frequency of the presence of the MB2 canal in upper maxillary molars in private and specialist dental practice.

Population Oral Health
Midwifery Initiated Oral Health Program
Women during pregnancy are prone to dental problems which can contribute to adverse pregnancy and infant outcomes. Unfortunately only a third of Australian women consult a dentist during pregnancy with the main barriers being lack of dental awareness, high dental costs and limited emphasis on oral health during antenatal care. To address this issue a unique midwifery initiated oral health dental service (MIOH-DS) program is being developed to promote maternal oral health in Australia. This is a collaborative project between Centre for Applied Nursing Research (CANR) and Oral Health Service and an Australian first. The program involves training midwives to provide oral health education/assessment and referrals during early pregnancy and offering priority dental referral pathways. It is a randomised controlled trial of 641 pregnant women recruited from three metropolitan hospitals in Western and South-western Sydney.

The low uptake of dental services has been attributed to various barriers facing pregnant women such as cost, lack of awareness and misconceptions. However, recent research reveals that there are significant provider barriers that can further exacerbate the problem. A review has shown there is no clear consensus among dentists and prenatal care providers regarding oral health care during pregnancy. There is also limited emphasis being placed on oral health within maternity care in Australia. All these issues can further deter pregnant women from seeking dental care. To address these issues researchers from the Centre for Applied Nursing Research, Sydney & South Western Sydney Local Health District and University of Western Sydney are gathering information about the current knowledge, attitude and practices of dentists and prenatal care providers (general medical practitioners, midwives and obstetricians & gynaecologists) in NSW towards oral health care during pregnancy. The information gained will inform the development of practice guidelines in perinatal oral health for all health professionals in Australia.

Preventive / Interceptive Orthodontic Research (PrIOR)
Orthodontic problems (abnormal positioning of the teeth and jaws) may affect individual-s quality of life. Some minor orthodontic problems if intercepted in childhood or adolescence can be prevented from becoming severe in adulthood. Currently only severe conditions are eligible for treatment in Public Specialist Service and there is a lack of early treatment strategies. An innovative tool is being developed as part of PrIOR Project which will be a cost-effective strategy for delivering orthodontic care by public dentists who are not qualified in orthodontics. It will provide dentists- competence to monitor, diagnose, treat or refer the disadvantaged children in a timely manner.

Key Achievements

Awards/Medals

  • Dentsply Research Award 2015 at Faculty Research Day, WCOH. The Effect of Piezocision on Root Resorption Associated with Orthodontic Force: A Microcomputed Tomography Study. Braydon Patterson, Suman Madukuri, Oyku Dalci, Alexandra Papadopoulou, Jonathan Mahon, Peter Petocz, Axel Spahr, M. Ali Darendeliler.
  • American Association of Orthodontists international conference in Orlando, USA. 2nd Place Winner (Clinical Research) Charley Schultz Resident Scholar Award with her Poster presentation Dr Doreen Ng, Final year DClinDent Ortho student.

Research Staff

  • Professor M. Ali Darendeliler, Head, Department of Orthodontics
  • Dr Öykü Dalci, Senior Lecturer, Department of Orthodontics
  • Dr Alexandra Papadopoulou, Senior Lecturer, Department of Orthodontics
  • Professor Axel Spahr, Head, Department of Periodontics
  • Dr Helen Carey, Senior staff specialist, Department of Periodontics
  • Dr Alan Reid, Hospital Specialist, Oral Surgery and Diagnostic Imaging
  • Dr Amelita Simpson, Dental Officer, Oral Surgery and Diagnostic Imaging
  • Dr Amit Arora, Director Healthy Smiles Healthy Kids Study
  • Dr Shilpi Ajwani, Head, OHP & Research
  • A/Prof Sameer Bhole, Clinical Director, OHS

Higher Degree Students:

PhD:

  • Nour Eldin TARRAF - PhD 'The application of skeletal anchorage for growth modification treatment in orthodontics.' Supervisor : Prof. M. Ali Darendeliler Associate Supervisor/s: Dr Öykü Dalci.
  • Lucyna MICHALEWSKA - PhD 'Psychological aspects of obstructive sleep apnea in adult and paediatric populations.' Supervisor: Prof. M. Ali Darendeliler Associate Supervisor/s: Dr Öykü Dalci.
  • Fabian Obregon - PhD.

Masters:

  • Benoosh Bianca GOODARZI 'The Sydney Miniscrew- A surface treated and synthetic graft reinforced trabecular bone orthodontic miniscrew system.' Supervisor: Prof. M. Ali Darendeliler Associate Supervisor/s: Dr Öykü Dalci.
  • Lamis AHMED 'A National survey of current trends in orthodontic practice.' Supervisor: Prof. M. Ali Darendeliler Associate Supervisor/s: Drs. Öykü Dalci Alexandra Papadopoulou.
  • Arjun ATRESH 'The use of rapid maxillary expansion in children with obstructive sleep apnoea: a retrospective study.' Supervisor: Prof. M. Ali Darendeliler Associate Supervisor/s: Dr Öykü Dalci.
  • India Justine CARR 'Motor cortical activity in sleep apnoea research.' Supervisor: Prof. M. Ali Darendeliler Associate Supervisor/s: Dr Öykü Dalci.
  • Chidchanok SESSIRISOMBAT 'A three dimensional study of craniofacial and airway structures in skeletal Class ll patients treated with RME and Herbst appliance' Supervisor: Prof. M. Ali Darendeliler Associate Supervisor/s: Drs. Öykü Dalci, Alexandra Papadopoulou.
  • Adrian LOK 'The effect of cibration in cranofacial structures: A Histomorphometric study in rats' Supervisor: Prof. M. Ali Darendeliler Associate Supervisor/s: Drs. Öykü Dalci, Alexandra Papadopoulou.
  • Jeremy Vo
  • Olivia Nova
  • Hugh Lenehan
  • Sal Sahidi
  • Dr Suman Madukuri
  • Dr Amelita Simpson - MPhil
  • Dr Antonia Scott - MPhil


Publications and Presentations

Publication Details:
  1. Liao Z, Chen J, Li W, Darendeliler MA, Swain M, Li Q. Biomechanical investigation into the role of the periodontal ligament in optimising orthodontic force: a finite element case study. Arch Oral Biol. 2016 Jun;66:98-107.
  2. Arita K, Hotokezaka H, Hashimoto M, Nakano-Tajima T, Kurohama T, Kondo T, Darendeliler MA, Yoshida N. Effects of diabetes on tooth movement and root resorption after orthodontic force application in rats. Orthod Craniofac Res. 2016 May;19(2):83-92.
  3. Buck LM, Dalci O, Darendeliler MA, Papadopoulou AK. Effect of Surgically Assisted Rapid Maxillary Expansion on Upper Airway Volume: A Systematic Review. J Oral Maxillofac Surg. 2016 May;74(5):1025-43.
  4. Patterson BM, Dalci O, Darendeliler MA, Papadopoulou AK. Corticotomies and Orthodontic Tooth Movement: A Systematic Review. J Oral Maxillofac Surg. 2016 Mar;74(3):453-73.
  5. McNamara JA Jr, Lione R, Franchi L, Angelieri F, Cevidanes LH, Darendeliler MA, Cozza P. The role of rapid maxillary expansion in the promotion of oral and general health. Prog Orthod. 2015;16:33.
  6. Eross E, Turk T, Elekdag-Turk S, Cakmak F, Jones AS, Végh A, Papadopoulou AK, Darendeliler MA. Physical properties of root cementum: Part 25. Extent of root resorption after the application of light and heavy buccopalatal jiggling forces for 12 weeks: A microcomputed tomography study. Am J Orthod Dentofacial Orthop. 2015 Jun;147(6):738-46.
  7. Sirisa-Ard A, Woodroffe Michael SN, Ahmed K, Dunstan CR, Pearce SG, Bilgin AA, Dalci O, Darendeliler MA. Histomorphological and torque removal comparison of 6 mm orthodontic miniscrews with and without surface treatment in New Zealand rabbits. Eur J Orthod. 2015 Dec;37(6):578-83.
  8. Heilbrunn A, De Silva, A, Lang G, George A, Ridge A, Johnson M, Bhole S, Gilmour C. Midwives' perspectives of their ability to promote the oral health of pregnant women in Victoria, Australia. BMC Pregnancy and Childbirth, 2015; 15:110.
  9. Johnson M, George A, Dahlen H, Ajwani S, Bhole S, Blinkhorn A, Ellis S, & Yeo AE. The Midwifery Initiated Oral Health-Dental Service Protocol: An intervention to improve oral health outcomes for pregnant women. BMC Oral Health, 2015; 15: 2.
  10. George A, Ajwani S, Johnson M, Dahlen H, Blinkhorn A, Bhole S, Ellis S, Zheng C, Dawes W. Developing and Testing of a Midwifery Oral Health Screening Tool for Pregnant Women. Health Care for Women International. 2015; 36: 1160-1174.

Presentations:

Professor M. Ali Darendeliler

Presentations in the:

  1. International Australian Orthodontic Conference in Melbourne DClinDent Oral Presentation representing University of Sydney. (February 2016)
  2. American Association of Orthodontists international conference in Orlando, USA (May 2016) Oral Presentation during the Research Oral Presentations Session (selected from the submitted abstract from around the World)
  3. European Orthodontic Society annual conference in Stockholm, Sweden. (June 2016)
  4. Oral Presentation during the Research Oral Presentations Session (selected from the submitted abstract from around the World)

Dr Doreen Ngu

Final year DClinDent Ortho student, was outstanding at:

  1. International Australian Orthodontic Conference in Melbourne DClinDent Oral Presentation representing University of Sydney. (February 2016)
  2. American Association of Orthodontists international conference in Orlando, USA (May 2016) Oral Presentation during the Research Oral Presentations Session (selected from the submitted abstract from around the World)
  3. European Orthodontic Society annual conference in Stockholm, Sweden. (June 2016)
  4. Oral Presentation during the Research Oral Presentations Session (selected from the submitted abstract from around the World)

National and International:

  1. B. Aras, S. Ajwani, J. Descallar, M.A. Darendeliler, S. Bhole. Development of a diagnostic tool in early orthodontic treatment need: prior system. 91st Congress of the European Orthodontic Society, June 13-18 2015, Venice, Italy.
  2. Simpson, A., Scott, A., Reid, A., Ajwani, S., Coombs, M. Survey of digital panoramic radiographs: quality assessment, faults and pathology. IADR ANZ Division 55th Annual Scientific Meeting in Dunedin, 23-26 August 2015
  3. Scott, A., Simpson, A., Ajwani, S., Coombs, M. Panoramic Radiology. New Patient Instruction Method Reduces Palato-glossal Airspace. IADR ANZ Division 55th Annual Scientific Meeting in Dunedin, 23-26 August 2015
  4. Arora A, Lucas D, To M, Srinivas R, Bhole S, Hector D. Understanding the factors influencing preschool child oral health. The 62nd ORCA Congress. Brussels, Belgium, 2015.
  5. Arora A, Scott J, Do LG, Srinivas R, Bhole S. Determinants of Breastfeeding Initiation among Mothers in South Western Sydney. Perinatal Society of Australia and New Zealand 2015. Melbourne, Australia, 2015.

Research Grants

GRANTING BODY AWARDEES PROJECT TITLE YEARS total $$ Years
NHMRC Arora A, Bhole S, Curtis BH, Hector D, Sivaneswaran S, Moody G Early Childhood Feeding (including breastfeeding) and food and beverage intake: Relationships with Early Childhood Caries and Childhood Obesity  $240,000 2012-2016
NHMRC Arora A The common risk factor approach to assess relationships between dental caries and adiposity in disadvantaged preschool children  $335,000 2014-2018
Western Sydney University Arora A, Bhole S (Associate Investigator) Healthy Smiles Healthy Kids Cohort – Relationships between Child Oral Health and Adiposity  $20,000 2015-2016
Western Sydney University Arora A, Bhole S (Associate Investigator) Healthy Smiles Healthy Kids – Home Environment and Child Health   $20,000 2015
NHMRC George, A., Johnson, M., Dahlen, H., Ajwani, S., Bhole, S., Yeo, A. Improving maternal and infant outcomes: A multicentre randomised controlled trial of midwifery and dental intervention  $443,510 Jun 2012 - Jun 2015
NSW Kids and Families George, A., Johnson, M., Dahlen, H., Ajwani, S., Bhole, S., Blinkhorn, A., Ellis S. Srinivas, R  Development of an oral health during pregnancy audio-visual resource for pregnant women and antenatal care providers in NSW  $32,904 2014-2015

Contact details for department

Head of Department: Dr Shilpi Ajwani

Department/Unit: Oral Health
Address:
Sydney Dental Hospital
2 Chalmers St
Surry Hills NSW 2010
Telephone: (02) 9293 3466
Facsimile: (02) 9293 3488
Web: http://www.sswahs.nsw.gov.au/sydneydentalhospital/
Email: shilpi.ajwani@sswahs.nsw.gov.au