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Health Sciences staff profiles

Dr Peter Mei

PositionSenior Lecturer / Orthodontist
DepartmentDepartment of Oral Sciences
QualificationsBDS MDS DDS PhD
Research summaryOrthodontics, oral microbiology, caries
TeachingPostgraduate (DClinDent), undergraduate (BDS and BOH)
ClinicalOrthodontist, orthodontic DClinDent clinic, BDS clinic

Research

Dr Mei's research expertise is in biofilms and biomaterials. His recent research activities are mainly focused on the mechanism and prevention of bacterial adhesion and biofilm formation on dental materials.

He has measured the adhesion forces between living bacteria and orthodontic materials using atomic force microscopy at a nano-level, and decoupled the bacterial adhesion forces into specific and non-specific forces. In addition, he has investigated measures for preventing biofilm formation using quaternary ammonium compounds. He developed a novel contact-killing surface by incorporating quaternary ammonium compounds into composite resin and studied its efficacy of killing the adhered bacteria and its bio-safety for human cells.

His other interests include randomized controlled trials (RCT) and evidence-based dentistry. He has investigated clinical methods for enhancing oral hygiene in patients wearing fixed orthodontic appliances.

Publications

Benic, G. Z., Farella, M., Morgan, X. C., Viswam, J., Heng, N. C., Cannon, R. D., & Mei, L. (2019). Oral probiotics reduce halitosis in patients wearing orthodontic braces: A randomized, triple-blind, placebo-controlled trial. Journal of Breath Research. Advance online publication. doi: 10.1088/1752-7163/ab1c81

Au, J., Mei, L., Bennani, F., Kang, A., & Farella, M. (2019). Three-dimensional analysis of lip changes in response to simulated maxillary incisor advancement. Angle Orthodontist. Advance online publication. doi: 10.2319/022219-134.1

Li, Y., Mei, L., Wei, J., Yan, X., Zhang, X., Zheng, W., & Li, Y. (2019). Effectiveness, efficiency and adverse effects of using direct or indirect bonding technique in orthodontic patients: A systematic review and meta-analysis. BMC Oral Health, 19(1), 137. doi: 10.1186/s12903-019-0831-4

Li, Y., Deng, S., Mei, L., Li, J., Qi, M., Su, S., … Zheng, W. (2019). Accuracy of alveolar bone height and thickness measurements in cone beam computed tomography: A systematic review and meta-analysis. Oral Surgery, Oral Medicine, Oral Pathology & Oral Radiology. Advance online publication. doi: 10.1016/j.oooo.2019.05.010

Padmos, J., Mei, L., Wouters, C., & Renkema, A.-M. (2019). Orthodontic retention procedures in New Zealand: A survey to benefit clinical practice guideline development. Journal of the World Federation of Orthodontists. Advance online publication. doi: 10.1016/j.ejwf.2018.12.003

Journal - Research Article

Benic, G. Z., Farella, M., Morgan, X. C., Viswam, J., Heng, N. C., Cannon, R. D., & Mei, L. (2019). Oral probiotics reduce halitosis in patients wearing orthodontic braces: A randomized, triple-blind, placebo-controlled trial. Journal of Breath Research. Advance online publication. doi: 10.1088/1752-7163/ab1c81

Padmos, J., Mei, L., Wouters, C., & Renkema, A.-M. (2019). Orthodontic retention procedures in New Zealand: A survey to benefit clinical practice guideline development. Journal of the World Federation of Orthodontists. Advance online publication. doi: 10.1016/j.ejwf.2018.12.003

Li, Y., Deng, S., Mei, L., Li, J., Qi, M., Su, S., … Zheng, W. (2019). Accuracy of alveolar bone height and thickness measurements in cone beam computed tomography: A systematic review and meta-analysis. Oral Surgery, Oral Medicine, Oral Pathology & Oral Radiology. Advance online publication. doi: 10.1016/j.oooo.2019.05.010

Li, Y., Mei, L., Wei, J., Yan, X., Zhang, X., Zheng, W., & Li, Y. (2019). Effectiveness, efficiency and adverse effects of using direct or indirect bonding technique in orthodontic patients: A systematic review and meta-analysis. BMC Oral Health, 19(1), 137. doi: 10.1186/s12903-019-0831-4

Au, J., Mei, L., Bennani, F., Kang, A., & Farella, M. (2019). Three-dimensional analysis of lip changes in response to simulated maxillary incisor advancement. Angle Orthodontist. Advance online publication. doi: 10.2319/022219-134.1

Li, R., Mei, L., Wang, P., He, J., Meng, Q., Zhong, L., … Li, Y. (2019). Canine edge width and height affect dental esthetics in maxillary canine substitution treatment. Progress in Orthodontics, 20, 16. doi: 10.1186/s40510-019-0268-y

Lu, W., Zhang, X., Firth, F., Mei, L., Yi, J., Gong, C., … Li, Y. (2019). Sclerostin injection enhances orthodontic tooth movement in rats. Archives of Oral Biology, 99, 43-50. doi: 10.1016/j.archoralbio.2018.12.011

Ma, R., Hwang, K.-C., Murray, C., Thomson, W. M., Farella, M., & Mei, L. (2018). Clinical dental noise and its association with the hearing thresholds of New Zealand dental students and clinical staff. New Zealand Dental Journal, 114(2), 73-78.

Ma, Q., Bimal, P., Mei, L., Olliver, S., Farella, M., & Li, H. (2018). Temporomandibular condylar morphology in diverse maxillary–mandibular skeletal patterns: A 3-dimensional cone-beam computed tomography study. Journal of the American Dental Association, 149(7), 589-598. doi: 10.1016/j.adaj.2018.02.016

Jiang, Q., Li, J., Mei, L., Du, J., Levrini, L., Abbate, G. M., & Li, H. (2018). Periodontal health during orthodontic treatment with clear aligners and fixed appliances: A meta-analysis. Journal of the American Dental Association. Advance online publication. doi: 10.1016/j.adaj.2018.04.010

Wang, S., Lin, H., Yang, Y., Zhao, X., Mei, L., Zheng, W., … Zhao, Z. (2018). Use of autonomous maximal smile to evaluate dental and gingival exposure. Korean Journal of Orthodontics, 48(3), 182-188. doi: 10.4041/kjod.2018.48.3.182

Jin, C., Bennani, F., Gray, A., Farella, M., & Mei, L. (2018). Survival analysis of orthodontic retainers. European Journal of Orthodontics, 40(5), 531-536. doi: 10.1093/ejo/cjx100

Wang, S., Ye, L., Li, M., Zhan, H., Ye, R., Li, Y., & Zhao, Z. (2018). Effects of growth hormone and functional appliance on mandibular growth in an adolescent rat model. Angle Orthodontist, 88(5), 624-631. doi: 10.2319/120417-829.1

Wang, Y., Li, J., Sun, W., Li, H., Cannon, R. D., & Mei, L. (2017). Effect of non-fluoride agents on the prevention of dental caries in primary dentition: A systematic review. PLoS ONE, 12(8), e0182221. doi: 10.1371/journal.pone.0182221

Antoun, J. S., Mei, L., Gibbs, K., & Farella, M. (2017). Effect of orthodontic treatment on the periodontal tissues. Periodontology 2000, 74(1), 140-157. doi: 10.1111/prd.12194

Al Balushi, S., Mei, L., & Farella, M. (2017). Patient's satisfaction with orthodontic care from an academic clinical service. New Zealand Dental Journal, 113(4), 13-20.

Meredith, L., Farella, M., Lowrey, S., Cannon, R. D., & Mei, L. (2017). Atomic force microscopy analysis of enamel nanotopography after interproximal reduction. American Journal of Orthodontics & Dentofacial Orthopedics, 151(4), 750-757. doi: 10.1016/j.ajodo.2016.09.021

He, D., Mei, L., Wang, Y., Li, J., & Li, H. (2017). Association between maxillary anterior supernumerary teeth and impacted incisors in mixed dentition. Journal of the American Dental Association, 148(8), 595-603. doi: 10.1016/j.adaj.2017.05.017

Mei, L., Chieng, J., Wong, C., Benic, G. Z., & Farella, M. (2017). Factors affecting dental biofilm in patients wearing fixed orthodontic appliances. Progress in Orthodontics, 18(1), 4. doi: 10.1186/s40510-016-0158-5

Meredith, L., Mei, L., Cannon, R. D., & Farella, M. (2017). Interproximal reduction in orthodontics: Why, where, how much to remove? Australasian Orthodontic Journal, 33(2), 150-157.

Wen, J., Liu, S., Ye, X., Xie, X., Li, J., Li, H., & Mei, L. (2017). Comparative study of cephalometric measurements using 3 imaging modalities. Journal of the American Dental Association, 148(2), 913-921. doi: 10.1016/j.adaj.2017.07.030

Loke, C., Lee, J., Sander, S., Mei, L., & Farella, M. (2016). Factors affecting intra-oral pH: A review. Journal of Oral Rehabilitation, 43(10), 778-785. doi: 10.1111/joor.12429

Duan, P., Qu, W., Zou, S., Chen, Y., Lan, H., Farella, M., & Mei, L. (2016). Influence of fixed orthodontic treatment on the menstrual cycle of adult females: A prospective longitudinal study. Angle Orthodontist, 86(3), 475-480. doi: 10.2319/121814-922.1

Wang, Y., Mei, L., Gong, L., Li, J., He, S., Ji, Y., & Sun, W. (2016). Remineralization of early enamel caries lesions using different bioactive elements containing toothpastes: An in vitro study. Technology & Health Care, 24(5), 701-711. doi: 10.3233/thc-161221

Li, J., Huang, Z., Mei, L., Li, G., & Li, H. (2016). Anti-caries effect of arginine-containing formulations in vivo: A systematic review and meta-analysis. Caries Research, 49(6), 606-617. doi: 10.1159/000435894

Tan, A., Bennani, F., Thomson, W. M., Farella, M., & Mei, L. (2016). A qualitative study of orthodontic screening and referral practices among dental therapists in New Zealand. Australian Orthodontic Journal, 32(2), 155-164.

Farella, M., Loke, C., Sander, S., Songini, A., Allen, M., Mei, L., & Cannon, R. D. (2016). Simultaneous wireless assessment of intra-oral pH and temperature. Journal of Dentistry, 51, 49-55. doi: 10.1016/j.jdent.2016.05.012

Fang, J., Li, Y., Zhang, K., Zhao, Z., & Mei, L. (2016). Escaping the adverse impacts of NSAIDs on tooth movement during orthodontics: Current evidence based on a meta-analysis. Medicine, 95(16), e3256. doi: 10.1097/md.0000000000003256

Fang, J., Wang, C., Li, Y., Zhao, Z., & Mei, L. (2016). Comparison of bacterial adhesion to dental materials of polyethylene terephthalate (PET) and polymethyl methacrylate (PMMA) using atomic force microscopy and scanning electron microscopy. Scanning, 38(6), 665-670. doi: 10.1002/sca.21314

Zhu, M., Li, J., Chen, B., Mei, L., Tan, J., & Li, H. (2015). The effect of calcium sodium phosphosilicate on dentin hypersensitivity: A systematic review and meta-analysis. PLoS ONE, 10(11), e0140176. doi: 10.1371/journal.pone.0140176

Ren, Y., Jongsma, M. A., Mei, L., van der Mei, H. C., & Busscher, H. J. (2014). Orthodontic treatment with fixed appliances and biofilm formation: A potential public health threat? Clinical Oral Investigations, 18, 1711-1718. doi: 10.1007/s00784-014-1240-3

Pei, Z., Wang, B., Zhang, F., Niu, Z., Shi, S., Cannon, R. D., & Mei, L. (2014). Response of human periodontal ligament cells to baicalin. Journal of Periodontology, 85(9), 1283-1290. doi: 10.1902/jop.2014.130635

Yuan, H., Li, J., Chen, L., Cheng, L., Cannon, R. D., & Mei, L. (2014). Esthetic comparison of white-spot lesion treatment modalities using spectrometry and fluorescence. Angle Orthodontist, 84(2), 343-349. doi: 10.2319/032113-232.1

Peng, Y., Wu, R., Qu, W., Wu, W., Chen, J., Fang, J., … Farella, M., & Mei, L. (2014). Effect of visual method vs plaque disclosure in enhancing oral hygiene in adolescents and young adults: A single-blind randomized controlled trial. American Journal of Orthodontics & Dentofacial Orthopedics, 145(3), 280-286. doi: 10.1016/j.ajodo.2013.10.021

Li, J., Lim, A. J. Z., Lum, H. B. S., Saion, A. M. M., & Mei, L. (2014). Clinical applications of cone-beam computed tomography in endodontics: A systematic review. Journal of Dental Applications, 1(2), 16-20.

Li, J., Xie, X., Wang, Y., Yin, W., Antoun, J. S., Farella, M., & Mei, L. (2014). Long-term remineralizing effect of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) on early caries lesions in vivo: A systematic review. Journal of Dentistry, 42, 769-777. doi: 10.1016/j.jdent.2014.03.015

Peng, Z., Chen, Y., & Mei, L. (2013). Biofilms in orthodontics: A review. Journal of Modern Stomatology, 2(27), 109-113.

Duan, P., Zhang, L., Zhao, Q., & Mei, L. (2012). Research progress on the biomechanics of self-ligating bracket systems. International Journal of Stomatology, 5, 661-663.

Mei, L., Ren, Y., Loontjens, T. J. A., van der Mei, H. C., & Busscher, H. J. (2012). Contact-killing of adhering streptococci by a quaternary ammonium compound incorporated in an acrylic resin. International Journal of Artificial Organs, 35(10), 854-863. doi: 10.5301/ijao.5000149

Mei, L., Busscher, H. J., van der Mei, H. C., & Ren, Y. (2011). Influence of surface roughness on streptococcal adhesion forces to composite resins. Dental Materials, 27(8), 770-778. doi: 10.1016/j.dental.2011.03.017

Duan, P., & Mei, L. (2010). Development and clinical application of fixed functional appliances. International Journal of Stomatology, 5, 569-572.

Mei, L., Ren, Y., Busscher, H. J., Chen, Y., & van der Mei, H. C. (2009). Poisson analysis of streptococcal bond-strengthening on saliva-coated enamel. Journal of Dental Research, 88(9), 841-845. doi: 10.1177/0022034509342523

Mei, L., Busscher, H. J., van der Mei, C., Chen, Y., de Vries, J., & Ren, Y. (2009). Oral bacterial adhesion forces to biomaterial surfaces constituting the bracket-adhesive-enamel junction in orthodontic treatment. European Journal of Oral Sciences, 117(4), 419-426. doi: 10.1111/j.1600-0722.2009.00648.x

Mei, L., van der Mei, H. C., Ren, Y., Norde, W., & Busscher, H. J. (2009). Poisson analysis of streptococcal bond strengthening on stainless steel with and without a salivary conditioning film. Langmuir, 25(11), 6227-6231. doi: 10.1021/la9000494

Min, C., Zhu, P., Mei, L., & Zou, S. (2007). Evidence-based orthodontic practice: Present status and prospect. Chinese Journal of Evidence-Based Medicine, 7(1), 75-77.

Qiang, X., Zhu, P., Qu, W., Qiao, J., Mei, L., & Ye, Q. (2006). Evidence of Cochrane systematic reviews of orthodontics. Chinese Journal of Evidence-Based Medicine, 6(5), 390-392.

Mei, L., Ye, Q., & Cheng, M. (2005). Dissemination and application of evidence-based orthodontics in clinical practice. Chinese Journal of Evidence-Based Medicine, 5(11), 882-884.

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Journal - Research Other

Ma, R., Lyons, K., & Mei, L. (2019). Strategies for the management of biofilm on silicone maxillofacial prosthesis: A review of the literature. New Zealand Dental Journal, 115(2), 59-65. [Review].

Mei, L., Guo, J., & Chen, Y. (2008). Displacement of impacted mandibular canine: A case report. West China Journal of Stomatology, 26(4), 457-458.

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