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Professor Ama Johal, BDS (Hons), MSc, PhD, FDS, MOrth, FDS (Orth) RCS

Professor in Oral Growth and Development (Orthodontics)

email: a.s.johal@qmul.ac.uk
Tel: +44 20 7882 8651

Profile

Ama Johal

Ama Johal graduated from Sheffield University in 1989, being 1 only 2 graduate students to be awarded a BDS degree with Honours. He subsequently undertook 3 years of general professional training in a variety of posts, during which he completed his Fellowship in Dental Surgery RCS England, before being appointed Specialist Registrar in Orthodontics at the The Royal London Hospital in 1993. During his orthodontic training (1993-1996), he completed his Membership examination (RCS England) in Orthodontics and was the only student in the University of London to be awarded an overall Distinction in his Masters in Science in 1995. Appointed Senior Registrar in Orthodontics at Guy's Dental Hospital, he completed his Exit Fellowship Examination in Orthodontics (FDS Orth. RCS) in 1999 and attained a Certificate in Teaching (Kings College) in addition to a Diploma in Management Studies, being awarded a distinction. He also was awarded the Belle Maudsley Prize for his paper looking at 'The Relationship between Obstructive Sleep Apnoea and Dentistry'; Gunter Russell Research Poster Award by British Orthodontic Society 'Responses to mandibular protrusion in subjects with obstructive sleep apnoea' and The Arnold Huddart New Researcher Medal by The Craniofacial Society of Great Britain for 'The Orthodontist's contribution to the management of obstructive sleep apnoea'. He was appointed Senior Clinical Lecturer/Hon. Consultant at Barts and The London School of Medicine and Dentistry in 2000. During which he completed a PhD (2005) into the role of mandibular advancement splints in the management of sleep-related breathing disorders, which was partly funded by Shirley Glasstone Hughes Research Prize Fund awarded by the British Dental Association and a Scholarship Award General Dental Council. He has subsequently been awarded: a European Orthodontic Society Research Grant for evaluating 'The role of three-dimensional fluoroscopy as a prognostic indicator in the management of obstructive sleep apnoea'; Schottlander Oral Research Presentation Prize for the Advancement of knowledge in Prosthetic dentistry by the British Society for the Study of Prosthetic Dentistry; Chapman Prize for the Best research Paper Submission entitled 'The role of mandibular advancement appliances in the management of sleep-related breathing disorders' by the British Orthodontic Society; Gunter Russell Research Poster Award for 'An investigation of electromyographic changes with mandibular advancement splint therapy'and British Orthodontic Society Research Foundation Award (£42,201) 'Does undertaking orthodontic treatment affect the quality of life of adolescents' A longitudinal study'. A Clinical Orthodontic Research Collaboration. He is research lead in Orthodontics and has established a PhD program in the fields of mandibular advancement splints therapy in obstructive sleep apnoea/hypopnoea syndrome and quality of life in relation to malocclusion and treatment. He also is the program lead for the Masters in Orthodontics.

Undergraduate teaching

Former module lead for Orthodontics and Growth and Ageing
Nominated for the Draper’s Prize for Excellence in Teaching Queen Mary College

Postgraduate teaching

Masters in Science Program Lead
Significant contribution to clinical and research supervision of Orthodontic trainees and those training to become Consultant Orthodontists

Professional activities and outreach

Associate Editor European journal of Orthodontics
Referee to a wide range of both Dental and medical Journals
Past External examiner to King’s College Masters in Science Program
Full member of the Angle Society of Europe

Teaching

Research

Research interests:

Management of Sleep-related breathing disorders with mandibular advancement splints.
Impact of malocclusion and orthodontic treatment on Quality of life.

Selected publications:

  • null (2011) The role of socio-economic position in predicting orthodontic treatment outcome at the end of 1 year of active treatment. Eur J Orthod. vol.33 (3) pp.263-269
  • null (2010) Self-Ligating Brackets in Orthodontics A Systematic Review. ANGLE ORTHOD. vol.80 (3) pp.575-584

View all publications

Johal, A., Davies, S.J., Franklin, C.D. (1994) Condylar metastasis : a review and case report. British Journal of Oral and Maxillofacial Surgery, 32,180-182.

Battagel J.M., Johal A. and Crow V. (1996) The Assessment of crowding without the need to record arch perimeter.  Part II: Crowded and Irregular arches. British Journal of Orthodontics, 23, 229-236.

Johal, A. (1997) Submerged Deciduous Molars: A Review and Alternative Treatment Approach. European Journal of Prosthodontics and Restorative Dentistry, 5, 5-9

Johal, A. and Battagel J.M. (1997) Dental crowding: A Comparison of Three Methods of assessment. European Journal of Orthodontics, 19, 543-551.

Johal, A. and Chate, R.A.C. (1997) An assessment into cross infection control in a District General Hospital. Orthodontic Audit Working Party Newsletter, Royal College of Surgeons of England. Newsletter 10.

Johal, A. and Lee, R.T. (1997) The periodontal-orthodontic interface: A simple solution to a difficult problem. British Journal of Orthodontics, 25, 95-99.

Johal, A (1998) The relationship between Obstructive Sleep Apnoea and Dentistry: Part 1 Aetiology and Diagnosis. Dental Update, 25, 380-383.

Johal, A (1998) The relationship between Obstructive Sleep Apnoea and Dentistry: Part 2 Management. Dental Update, 25, 474-477.

Johal, A. & Ide M. (1998) Orthodontics in the adult patient, with special reference to the periodontally compromised patient. Dental Update, 26, 101-108

Battagel, J.M., Johal, A., L'Estrange, P.R., Croft, C.B. and Kotecha, B. (1998)Changes in airway and hyoid position in response to mandibular protrusion in subjects with Obstructive Sleep Apnoea. European Journal of Orthodontics, 21, 353-376

Johal, A. & Battagel J.M. (1999) An investigation into the changes in airway dimension and the efficacy of mandibular advancement appliances in subjects with Obstructive Sleep Apnoea. British Journal of Orthodontics,26, 205-210

Johal, A., Harper, C. and Sherriff, M. (1999)Properties of crimpable archwire hooks: A laboratory investigation. European Journal of Orthodontics, 21, 679-683

Johal, A., Battagel, J.M., and Kotecha, B. (2000) A cephalometric comparison of subjects with snoring and obstructive sleep apnoea. European Journal of Orthodontics, 22, 353-365

Battagel, J.M. and Johal, A.  (2000) A cephalometric comparison of normal weight and obese subjects with obstructive sleep apnoea. Radiography, 6, 283-292

Johal, A., and Battagel, J.M. (2001) Current principles in the management of obstructive sleep apnoea with mandibular advancement appliances. British Dental Journal, 190, 532-536

Johal, A., Loh, S. and Heng J.K. (2001) A clinical investigation into the behaviour of crimpable archwire hooks. Journal of Orthodontics, 28, 203-205

Battagel, J.M., Johal, A., Smith, A-M. and Kotecha, B. (2002) Postural variation in oropharyngeal dimensions in subjects with sleep disordered breathing: a cephalometric study. European Journal of orthodontics, 24, 263-276.

Ismail, S.F.H. and Johal A. (2002) The role of implants in orthodontics. Journal of Orthodontics, 29, 239-245.

Johal, A.  (2002) The Orthoworld Specialist Practitioner Prize Cases 2000 Journal of Orthodontics, 29, 251-265.

Johal, A. and Kirschen, R. (2003) The valuable contribution of space analysis in the planning and execution of orthodontic treatment. Journal of Orthodontics, 30, 178.

Johal, A. and Conaghan, C. (2004) Maxillary morphology in obstructive sleep apnea: A cephalometric and model study. Angle Orthodontist, 74, 648-656.

Battagel, J.M. Johal, A. and Kotecha, B.T. (2005) Sleep nasendoscopy as a predictor of treatment success in snorers using mandibular advancement splints. The Journal of Laryngology and Otology, 119, 106-112.

Johal, A., Arya, D., Winchester, L.J., Venn, P.J.H. and Brooks, H. (2005) The effect of a mandibular advancement splint in subjects with sleep-related breathing disorders. British Dental Journal, 199, 591-596.

Johal, A., Battagel, J.M. and Kotecha, B.T. (2005) Sleep nasendoscopy: a diagnostic tool for predicting treatment success with mandibular advancement splints in obstructive sleep apnoea. European Journal of Orthodontics, 27, 606-6614.

Johal, A. (2006) Obstructive sleep apnoea. Dental Nursing, 2: 118-120.

Johal, A. (2006) Health-related quality of life in patients with sleep disordered breathing: Effect of mandibular advancement appliances. The Journal of Prosthetic Dentistry, 96, 298-302.

Johal, A., Gill, G., Ferman, A. and Mclaughlin K. (2006) The effect of mandibular advancement splints on awake upper airway and masticatory muscle activity in patients with obstructive sleep apnoea. Clinical Physiology and Functional Imaging, 27, 47-53.

Johal, A., Cheung, M.Y.H. and Marcenes, W. (2007) The impact of two different malocclusion traits on quality of life. British Dental Journal, 202, E6

Johal, A., Cheung, M.Y.H. and Marcenes, W. (2007) The impact of two different malocclusion traits on quality of life: Research summary, questions and answers. British Dental Journal, 202, 88-89.

Johal, A., Hector, M.P., Battagel, J.M. and Kotecha, B.T. (2007) The impact of sleep nasendoscopy on the outcome of mandibular advancement splint therapy in subjects with sleep-related breathing disorders. The Journal of Laryngology and Otology, 121, 668-675

Johal, A., Patel, S. and Battagel J.M.(2007) The relationship between craniofacial anatomy and obstructive sleep apnoea: a case-controlled study. Journal of Sleep Research, 16, 319-326.

Johal, A. (2008) A review of the use of mandibular advancement appliances in sleep-disordered breathing. Dental Update, 35, 230-235.

Owens, A-M. and Johal, A. (2008) The use of near-end of treatment panoramic radiographs in the assessment of mesio-distal root angulation.. Angle Orthodontist, 78, 475-481.

Fleming, P.S., Johal, A., Dibiase, A.T.(2008) Managing malocclusion in the mixed dentition: six keys to success. Part 1. Dental Update, 35, 607-610.

Fleming, P.S., Johal, A., Dibiase, A.T.(2008)  Managing malocclusion in the mixed dentition: six keys to success. Part 2. Dental Update, 35, 673-676.

Church S.K.J., Littlewood, S.J., Blance, A., Gowans, A.J. Hodge, T.M., Spencer, J. Johal, A. (2009)  Are general dental practitioners effective in the management of non-apnoeic snoring using mandibular advancement appliances? British Dental Journal, 206, E15.

Fleming, F.S., Johal, A. (2010) Self-ligating brackets in orthodontics: A systematic review. Angle Orthodontist, 80: 575-584

Joury, E., Johal, A., Marcenes, W. (2010) The role of socioeconomic position in predicting orthodontic treatment outcome at the end of one year of active treatment. European Journal of Orthodontics, Sep 9. [Epub ahead of print]

Cunningham, S., Bearn, D., Benson, P., Johal, A., Millet, D., O'Brien, K., Luther, F (2011). In search of the sample: recent experiences of a clinical trial team in orthodontics. Contemporary Clinical trials 32: 530-534.

Fleming, F.S., Marinho, V., Johal, A. (2011) Orthodontic measurements on digital study models compared with plaster: A systematic review. Orthodontics and Craniofacial Research, Feb;14(1):1-16. doi: Epub

Johal,  A., Sheriteh, Z., Battagel, J.M., Marshall, C. (2011) The use of videofluoroscopy in the assessment of the pharyngeal airway in obstructive sleep apnoea. European Journal of Orthodontics. 33(2):212-9.

Johal,  A., Battagel, J.M., Hector, M.P. (2011)  Controlled, prospective trial of psychosocial function before and after mandibular advancement splint therapy. American Journal of Orthodontics and Dentofacial Orthopedics. 139(5):581-7

Al Jawad, F., Croft, N., Cunningham, S., Johal, A. (2011) A qualitative study of the effects of fixed orthodontic treatment on dietary intake and behaviours. European Journal of Orthodontics. May 13. [Epub ahead of print]

Cunningham, S., Bearn, D., Benson, P., Johal, A., Millet, D., O'Brien, K., Luther, F (2011). In search of the sample: recent experiences of a clinical trial team in orthodontics. Contemporary Clinical trials 32: 530-534.

Joury, E.,Marcenes, W., Johal, A.(2011) The role of psychosocial factors in predicting orthodontic treatment outcome at the end of one year of active treatment. European Journal of Orthodontics. 2011 Sep 28. [Epub ahead of print]

Fleming, F.S., Johal, A., Pandis N.(2012) The effectiveness of laceback ligatures during initial orthodontic alignment: A systematic review and meta-analysis. European Journal of Orthodontics. 2012 Apr 26. [Epub ahead of print]

Fleming, F.S., Johal, A., Pandis N.(2012) Self-etch primers and conventional acid-etch technique for orthodontic bonding: A systematic review and meta-analysis. American Journal of Orthodontics and Dentofacial Orthopedics. 142:83-94.

Suchak, A., Johal, A., Wade, A. (2012) Useful concepts for critical appraisal –Part 1 study design. Orthodontic Update. (In Press).

Suchak, A., Johal, A., Wade, A. (2012) Useful concepts for critical appraisal –Part 1 considering chance. Orthodontic Update (In Press).

Suchak, A., Johal, A., Wade, A. (2012) Useful concepts for critical appraisal –Part 1 associations, outcomes and errors. Orthodontic Update. (In Press).

Hayes, M., Johal, A. (2012) The influence of malocclusion on the diagnostic value of the dental pantomagram in the upper labial segment. Orthodontics and Craniofacial Research, (In Press).

Johal A, Katsaros C, Kuijpers-Jagtman AM, ASE Membership Group (2012). State of the science on controversial topics: Missing maxillary lateral incisors – a report of the Angle Society of Europe 2012 meeting. Progress in Orthodontics, (In Press).

PhD Supervision

PhD and MSc supervision.

Public engagement

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