Skip to main content

Trinity College Dublin, The University of Dublin

Menu Search


Trinity College Dublin By using this website you consent to the use of cookies in accordance with the Trinity cookie policy. For more information on cookies see our cookie policy.

      
Profile Photo

Dr. Michael O'Sullivan

Associate Professor (Dental Science)
DENTAL SCHOOL, LINCOLN PLACE


Michael O'Sullivan qualified in dentistry from Trinity College Dublin in 1990. After a time in general dental practice he completed a MSc in Conservative Dentistry at the Eastman Dental Institute and University of London and fellowships from the Royal College of Surgeons in Ireland and Edinburgh (FFD RCSI and FDS RCS(Ed)). He then undertook specialist training in Restorative Dentistry at the Dublin Dental School and Hospital, completing training in 1998 and his Intercollegiate Specialist Fellowship Examination from the RCSI. He also completed a PhD in Biochemistry at Trinity College with Professor Keith Tipton entitled "Semicarbazide-sensitive Amine Oxidase in Human and Porcine Dental Pulp" graduating in 2001. From 1999-2001 he completed a Research Fellowship with Dr Mary McDougall and a Clinical Fellowship with Dr Robert Cronin, both at the University of Texas Health Science Centre at San Antonio, Texas. He returned to Ireland in 2001 and was appointed a Senior Lecturer /Consultant in Restorative Dentistry (Special Dental Needs) in the Division of Restorative Dentistry and Periodontology at the Dublin Dental School and Hospital, Trinity College Dublin. He was the Clinical Director of the DDUH from 2009-2015. He is currently The Director of Teaching and Learning (Postgraduate) for the School of Dentistry and The Director of Graduate Prosthodontics. He is also the Chairperson of the Irish Committee for Specialist Training in Dentistry and sits on the Education and Training Committee of the Dental Council.
 Database Establishment, Psychological Impact and Quality of Life in a Developmental Dental Anomalies Population
 Investigating the effect of skeletal pattern in determining articulator settings for prosthodontic rehabilitation: An In-vivo study.
 Disinfection procedures: Their efficacy and effect on dimensional accuracy and surface quality of an irreversible hydrocolloid impression material
 Maxillary anterior tooth dimensions and proportions in an Irish young adult population

Details Date
Chairperson of the Irish Committee for Specialist Training in Dentistry from 2016
Member of the Education & Training Committee of the Dental Council 2016
Chairperson Of Intercollegiate Specialist Fellowship Board in Restorative Dentistry 2010-2013
Details Date From Date To
International Association for Dental Research 1993 Present
American Academy of Fixed Prosthodontics 2001 Present
Royal College of Surgeons in Ireland 1995 Present
Royal College of Surgeons in Edinburgh 1994 Present
External reviewer for the Italian Ministry for Education University and Research. 2008 2010
Reviewer for the Journal of the Irish Dental Association 2007 2010
O'CONNOR AM, McMANUS BA, KINNEVEY PM, BRENNAN GI, FLEMING TE, CASHIN PJ, O'SULLIVAN M, POLYZOIS I, COLEMAN DC, SIGNIFICANT ENRICHMENT AND DIVERSITY OF THE STAPHYLOCOCCAL ARGININE CATABOLIC MOBILE ELEMENT ACME IN STAPHYLOCOCCUS EPIDERMIDIS ISOLATES FROM SUBGINGIVAL PERI-IMPLANTITIS SITES AND PERIODONTAL POCKETS, FRONTIERS IN MICROBIOLOGY, 9, (1558), 2018, p1 - 15, Journal Article, PUBLISHED  TARA - Full Text  DOI  URL
McMANUS BA, O'CONNOR AM, KINNEVEY PM, O'SULIVAN M, POLYZOIS I, COLEMAN DC, FIRST DETAILED CHARACTERIZATION OF THE STRUCTURAL ORGANIZATION OF TYPE III ARGININE CATABOLIC MOBILE ELEMENTS (ACMEs) HARBORED BY STAPHYLOCOCCIS EPIDERMIDIS BY WHOLE GENOME SEQUENCING, ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 61, (10), 2017, p1-5:e01216-17 , Notes: [31st July 2017; Epub ahead of print], Journal Article, PUBLISHED  TARA - Full Text  DOI  URL
Michael O'Sullivan, Brian C O'Connell, Multidisciplinary management of hypodontia , Prim Dent J, 6, (1), 2017, p62 - 73, Journal Article, PUBLISHED
Michael Crowe , Michael O' Sullivan, Oscar Cassetti and Aifric O' Sullivan, Weight Status and Dental Problems in Early Childhood: Classification Tree Analysis of a National Cohort. , Dent. J. , 5, (3), 2017, p25-, Journal Article, PUBLISHED
Crowe, M., O'Sullivan, M., Cassetti, O., McGrath, C., O'Sullivan, A. , Data mapping to augment dietary intake values from a nutritional database to a national cohort survey: protocols to improve quality of reported food intake, Proceedings of the Nutrition Society, 75, (OCE3), 2016, pdoi: 10.1017/S0029665116002032 , Journal Article, PUBLISHED
Crowe, M., O'Sullivan, A., McGrath, C., Cassetti, O., Swords, L., & O'Sullivan, M. , Early Childhood Dental Problems: Classification Tree Analyses of 2 Waves of an Infant Cohort Study. , JDR Clinical & Translational Research, 1, (3), 2016, p275 - 284, Journal Article, PUBLISHED
Nayyar J, Clarke M, O'Sullivan M, Stassen LF, Fractured root tips during dental extractions and retained root fragments. A clinical dilemma?, British dental journal, 218, (5), 2015, p285-90 , Journal Article, PUBLISHED  DOI
Hashem A, Kelly A, O'Connell B, O'Sullivan M, Impact of moderate and severe hypodontia and amelogenesis imperfecta on quality of life and self-esteem of adult patients., Journal of dentistry, 41, (8), 2013, p689-94 , Journal Article, PUBLISHED
MacCarthy D, O'Sullivan E, McAlister C, Healy CM, Flint S, Toner M, Nunn J, Allen F, Gorman T, O'Sullivan M, Stassen LF, The development of mouth, head and neck cancer awareness in Ireland and results of Mouth Cancer Awareness Day 2011., Journal of the Irish Dental Association, 58, (2), 2012, p109-13 , Journal Article, PUBLISHED
MacCarthy D, Nunn J, Healy CM, Stassen LF, Gorman T, Martin B, Toner M, Clarke M, Dougall A, McLoughlin J, Kelly A, Waldron C, O'Sullivan M, Doyle C, Flint S, Outcomes from the first mouth cancer awareness and clinical check-up day in the Dublin Dental University Hospital., Journal of the Irish Dental Association, 58, (2), 2012, p101-8 , Journal Article, PUBLISHED
  

Page 1 of 5
Michael O'Sullivan, The Relevance of Occlusion in Fixed Prosthodontics in 2017, British Society for Restorative Dentistry, London, 9th November , 2017, Invited Talk, PUBLISHED
Michael O'Sullivan, Evidence Based Use of Composite Resin in Dentistry, Irish Dental Association -HSE Dental Surgeons Group, Athlone, 7th October, 2016, Invited Talk, PUBLISHED
Michael O'Sullivan, The Role of Occlusion in TMD, RCSI Annual Scientific Meeting, Dublin, 24th October , 2013, Invited Talk, PUBLISHED

  

Award Date
President of the Irish Division of the International Association for Dental Research 2006
Nominated as a Fellow of American Academy of Fixed Prosthodontics 2001
Winner of Texas Division of the International Association for Dental Research Postgraduate Research Award. 2000
Awarded Overall Postgraduate Prize for 1994, Eastman Dental Institute, University of London. 1994
Gold medal winner for highest result in Final Dental Examinations in Oral Surgery 1990
Awarded MSc with Distinction, University of London 1994
(1) Special Dental Needs The Restorative Special Needs Clinic is a tertiary referral centre for the treatment of patients with developmental craniofacial and dental anomalies. These are hereditary /developmental disorders that may affect the number, size or quality of teeth. The most common condition is hypodontia, where a person's teeth fail to develop. There is currently no data available for Ireland, but based on other European figures the number of patients in Ireland missing five or more teeth is likely to be 12,000 (0.3% of the total population). The general incidence of hypodontia in European population is 2.3-10.1%. The second most common condition is amelogenesis imperfecta. This term covers a range of conditions where all the enamel is defective. It may present merely as marked pitting of the surface of the tooth to severe cases where the enamel disintegrates upon eruption of the tooth. No data is available on its incidence but studies from other populations put its incidence at 1:4000 to 1:8000 (1% and 2% of the total population). Other dental conditions occur less frequently, such as dentinogenesis imperfecta (the layer under the enamel is poorly formed leading to tooth fracture) and conditions that also affect hair, skin and nails such as ectodermal dysplasia. Research interest in this area includes the clinical management of this population, establishment of a National Database of developmental dental disorders and investigation of the Quality of Life issues associated with these disorders (2) Dental Pulp Biology (with Dr Jeff O'Sullivan, Division of Restorative Dentistry and Periodontology) Currently research is focused on two distinct areas. Our primary focus is understanding the enzymatic regulation of cellular events within dental pulp. These include pain transmission and modulation, the inflammatory response of dental pulp and the mechanisms behind tooth development. Central to our studies of these events is a unique enzyme called semicarbazide-sensitive amine oxidase (SSAO) which is involved in similar events throughout the body and may modulate the response observed. Secondary studies include the role of periodontitis in systemic disease and the utilisation of dental pulp stem cells in neuro-protection. (3) Sleep Apnoea (with Prof Walter McNicholas, Newman Clinical Research Professor, School of Medicine & Medical Science, St. Vincent's University Hospital, Dublin) Obstructive Sleep Apnoea (OSA) is a common sleep-related breathing disorder characterised by repetitive obstructions of the upper airway during sleep. These disorders result from sleep related narrowing of the upper airway, which is thought to be due to varying combinations of anatomical and neuromuscular factors that culminate in an imbalance of forces acting on the airway. This causes airflow limitation (snoring), partial (hypopnea) or complete (apnoea) closure of the upper airway; with consequent adverse effects on sleep quality and gas exchange. Previous studies have examined the relationship between the genioglossus (GG) muscle and OSA. The genioglossus muscles (GG) are the primary protruders of the tongue and play a vital role in maintaining the patency of the upper airway. Genioglossus muscle activity normally decreases in no-OSA individuals, whereas, patients with OSA show an increased level of GG muscle activity, both while awake and asleep, due to the necessity of counteracting the pharyngeal narrowing associated with OSA. Electromyography (EMG) of genioglossus muscles may therefore be an important tool for diagnosing OSA. Through examination of muscle fibre signals from the GG, important information can be extracted, such as conduction velocity, amplitude and frequency of electrical signals. This joint project involves the design and fabrication an oral appliance to measure electromyographic signals from the genioglossus muscle, which is a key factor in the development of sleep apnoea.