SIMON CHRISTIAN LEA

ACADEMIC / PROFESSIONAL QUALIFICATIONS

• PhD Dentistry - University of Birmingham
• MSc Medical Radiation Physics - University of Wales, Swansea
• BSc (Hons) Physics - University of Birmingham
  
• Chartered Scientist - Science Council of Great Britain
• Chartered Physicist - Institute of Physics

STUDENT SUPERVISION

3 PhD students (based at University of Birmingham):

• Sonochemical Analysis of the Output of Ultrasonic Dental Scalers
• Scanning Laser Vibrometer and its Use in Dental Instrumentation
• Ultrasonic Imaging of the Internal Structures of Teeth 

• Enamel Surface Damage at Orthodontic Debonding

1 PhD student (based at University of Birmingham):

• The Effects of Low Frequency Ultrasound on Tooth and Bone Cells

RESEARCH INTERESTS

• kHz ultrasound and its biological effects in dentistry
• Analysis and modelling of 3D scaler vibrations and tooth surface alteration
• Evaluation of cavitation around dental ultrasonic instruments
• Development of novel in-vitro calculus models
• Ultrasound imaging of tooth structures

CURRENT GRANTS

• £2,000 – (Co-I) MRC/EPSRC Institutional Discipline Bridging Award 2006
• £1,900 – (PI) The Proctor & Gamble Research Awards 2005

PROFESSIONAL DUTIES

Referee for the following journals:

• 2002-Present ‘Journal of Dentistry’
• 2005-Present ‘Ultrasonics Sonochemistry’
• 2005-Present ‘Institute of Physics Journals’
• 2006-Present 'Journal of Sound and Vibration'
• 2007-Present 'Journal of Periodontology'
• 2008-Present 'American Journal of Dentistry'
• 2010-Present 'Journal of Applied Oral Science'
• 2010-Present 'Indian Journal of Dentistry'
• 2010-Present 'Journal of Dental Research'
• 2010-Present 'International Journal of Paediatric Dentistry'
• 2006-Present 'BSDR Mineralised Tissue Research Group (MINTIG)'
  

RESEARCH EXPERIENCE

• Nine years using scanning laser vibrometer (SLV) to assess vibration characteristics of ultrasonic instruments.
• Research formed basis of 6 successful EPSRC grant applications (> £600,000).
• Successfully adapted SLV to enable sonic instruments / powered toothbrushes to be evaluated.
• Received specialist training in 3D laser vibrometry (Polytec GmbH, Waldbronn, Germany).

PUBLICATIONS

Papers

1. Mann M, Parmar D, Walmsley AD & Lea SC . Effect of plastic covered ultrasonic scalers on titanium implant surfaces. Clinical Oral Implants Research, 2010 (In press).
2. Parmar D, Mann M, Walmsley AD & Lea SC. Cutting characteristics of ultrasonic surgical instruments. Clinical Oral Implants Research, 2010 (In press).
3. Bartlett PA, Lea SC, Meydan T, Williams PI, Landini G, Walmsley AD & Moses AJ. Generated vibration modes in ultrasonic scaler transducer components. Sensor Letters, 2010 (In press).
4. Verhaagen B, Lea SC, Lei-Meng J, Van der Sluis LWM & Versluis M. Ultrasonic cleaning of the root canal. Proceedings of 20th International Congress on Acoustics, ICA 2010 (In press).
5. Tiong TJ, King DC, Lea SC, Walmsley AD & Price GJ. Correlation of vibrometry and cleaning effects in ultrasonic dental instruments. Proceedings of the Twentieth International Congress on Acoustics, 2010 (In press).
6. Walmsley AD, Felver B, King DC, Lea SC, Lumley PJ & Price GJ. Identifying cavitation around dental ultrasonic instruments. Proceedings of INTERNOISE Conference, 2010 (In press).
7. Lea SC & Landini G. Reconstruction of dental ultrasonic scaler 3D vibration patterns from phase-related data. Medical Engineering & Physics, 2010; 32(6): 673-677.
8. O’Brien T, Shoja-Assadi F, Lea SC, Burke FJT & Palin WM. Extrinsic energy sources affect hardness through depth during set of a glass-ionomer cement. Journal of Dentistry, 2010 (Accepted for publication).
9. Lea SC, Walmsley AD & Lumley PJ. Analyzing endosonic root canal file oscillations within a water tank environment. Journal of Endodontics, 2010; 36: 880-883.
10. Lea SC, Felver B, Landini G & Walmsley AD. Ultrasonic scaler oscillations and tooth surface defects. Journal of Dental Research, 2009; 88(3): 229-234.
11. Lea SC & Walmsley AD. Mechano-physical and biophysical properties of power driven scalers – driving the future of powered instrument design and evaluation. Periodontology 2000, 2009; 51: 63-78.
12. Felver B, King DC, Lea SC, Price GJ & Walmsley AD. Cavitation occurrence around ultrasonic scalers. Ultrasonics Sonochemistry, 2009; 16: 692-697.
13. Lea SC, Felver B, Landini G & Walmsley AD. Three dimensional ultrasonic scaler probe oscillations. Journal of Clinical Periodontology, 2009; 36: 44-50.
14. Scheven BA, Man J, Millard JL, Cooper PR, Lea SC, Walmsley AD & Smith AJ. VEGF and odontoblast-like cells: Stimulation by low frequency ultrasound. Archives of Oral Biology, 2009; 54: 185-191.
15. Lea SC & Tomson PLM. Use of ultrasonic instrumentation in Endodontics. Practical Procedures & Aesthetic Dentistry – Endodontic Therapy, 2009; (In press).
16. Felver B, King DC, Lea SC, Price GJ & Walmsley AD. Scanning laser vibrometry and luminol photomicrography to map cavitational activity around ultrasonic scalers. Proceedings SPIE, 2008; 7098: 70980Q-1.
17. Bartlett PA, Meydan T, Lea SC, Moses AJ, Williams PI, Landini G & Walmsley AD. A comparison of and the compensation for magnetostrictive core inductances in magnetic transducer systems. Journal of Magnetism and Magnetic Materials, 2008; 320: e1061-e1064.  
18. Walmsley AD, Lea SC, Landini G & Moses AJ. Advances in power driven pocket/root instrumentation. Journal of Clinical Periodontology, 2008; 35 (Suppl. 8): 22-28.
19. Poole RL, Lea SC, Dyson JE, Shortall ACC & Walmsley AD. Vibration characteristics of dental high-speed and speed-increasing handpieces. Journal of Dentistry, 2008; 36: 488-493.
20. Lea SC. Cavitation damage to ultrasonic scalers. Dental Health, 2008; 47: 5-8.
21. Lea SC, Lightstone JJ, Landini G & Walmsley AD. The effect of water flow rate on ultrasonic scaler performance. Perio, 2008; 5 (1): 51-55.
22. Lea SC. In-vitro analysis of powered toothbrush vibrations. Dental Health, 2007; 46: 5-8.
23. Scheven BA, Millard JL, Cooper PR, Lea SC, Walmsley AD & Smith AJ. Short-term in vitro effects of low frequency ultrasound on odontoblast-like cells. Ultrasound in Medicine and Biology, 2007; 33 (9): 1475-1482.
24. Tomson PLM, Lea SC, Lumley PJ & Walmsley AD. Variation in power output of piezon-master 400 ultrasound generators and analytic handpieces. Journal of Endodontics, 2007; 33 (5): 574-577.
25. Lea SC, Khan A, Patanwala HS, Landini G & Walmsley AD. The effects of load and toothpaste on the vibration characteristics of powered toothbrushes. Journal of Dentistry, 2007; 35 (4): 350-354.
26. Lea SC, Landini G & Walmsley AD. The effect of wear on ultrasonic scaler tip displacement amplitude. Journal of Clinical Periodontology, 2006; 33 (1): 37-41.
27. Lea SC. Perfect Teeth: Laser vibrometry helps to improve efficacy in dental ultrasonics. Polytec LM Info Special. (2005) Issue 2: 16-17.
28. Lea SC, Price GJ & Walmsley AD. A study to determine whether cavitation occurs around dental ultrasonic scaling instruments. Ultrasonics Sonochemistry, 2005; 12 (3): 233-236.
29. Lea SC, Landini G & Walmsley AD. A novel method for the evaluation of powered toothbrush oscillation characteristics. American Journal of Dentistry, 2004; 17 (5): 307-309.
30. Lea SC, Walmsley AD, Lumley PJ & Landini G. A new insight into the oscillation characteristics of endosonic files used in dentistry. Physics in Medicine and Biology, 2004; 49 (10): 2095-2102.
31. Lea SC, Landini G & Walmsley AD. Thermal imaging of ultrasonic scaler tips during tooth instrumentation. Journal of Clinical Periodontology, 2004; 31 (5): 370-375.
32. Lea SC, Landini G & Walmsley AD. Assessing the vibrations of dental ultrasonic scalers. Journal of Sound and Vibration, 2004; 271 (3-5): 1113-1120.
33. Lea SC, Price GJ & Walmsley AD. Does cavitation occur around powered toothbrushes? Journal of Clinical Periodontology, 2004; 31 (2): 77-78.
34. Lea SC, Landini G & Walmsley AD. Ultrasonic scaler tip performance under various load conditions. Journal of Clinical Periodontology, 2003; 30 (10): 876-881.
35. Lea SC, Landini G & Walmsley AD. The displacement amplitude of ultrasonic scaler inserts. Journal of Clinical Periodontology, 2003; 30 (6): 505-510.
36. Lea SC & Walmsley AD. Technology, ultrasonics and dentistry. Dental Update, 2002; 29 (8): 390-395.
37. Lea SC, Landini G & Walmsley AD. Vibration characteristics of ultrasonic scalers assessed with scanning laser vibrometry. Journal of Dentistry, 2002; 30 (4): 147-151.