Orthodontics, Cleft & Orthognatic

Background of research

This collaborative, innovative and dynamic research group, aimed to produce good quality, high impact research on three main principal areas, namely orthodontics, cleft and orthognathic. Orthodontics is a specialty in dentistry that addresses the diagnosis, growth modification, prevention, and management of the dentofacial deformities and malocclusion including cleft and orthognathic.

  1. Noraini Abu Bakar, Sakinah Azman, Syahirah Syazwani Jaffar, Nor Asilah Harun, Khairani Idah Mokhtar@Makhtar (2020). Demographics and clinical profile of orofacial cleft in International Islamic University Malaysia from 2009 until 2018. Archives of Orofacial Sciences, 15 (2). pp. 97-107. ISSN 1823-8602
  2. Noraini Abu Bakar, Wisam Alaa Kamil, Lina Hilal Abbood Al-Bayati, Basma Ezzat Mustafa Al- Ahmad (2017). Saliva leptin levels in tooth movement during initial stage of orthodontic alignment: a pilot study. Brazilian Journal of Oral Sciences, 16. pp. 1-8. ISSN 1677-3225
  3. Noraini Abu Bakar, Nurul Idayu Jayah, Nurul Rafhana Mohamed, Suhaila Mohamed Ali, Siti Hajjar Nasir, Ridzwan Hashim, Azrul Fazwan Kharuddin (2020). The effectiveness of pure Stichopus horrens extract toothpaste in reducing plaque-induced gingivitis following orthodontic bonding: A triple-blinded randomized controlled trial. Journal of the World Federation of Orthodontists, 9 (1). pp. 3-8. ISSN 2212-4438
  4. Noraini Abu Bakar, Nur Arafiqah Amat, Siti Hajjar Nasir (2023). Demographic of orthognathic cases seen in Kulliyyah of Dentistry IIUM. Journal of Orofacial and Health Sciences, 4 (2). pp. 113-125.
  5. Noraini Abu Bakar (2019). Rawatan orthognatik pilihan terbaik. Harian Metro. pp. 42.
  6. Noraini Abu Bakar (2018). 1-5. An asymmetrical jaw can cause a lot of problems. Star2.com. pp
  7. Khairani Idah Mokhtar@Makhtar, Noraini Abu Bakar, Aisyah Hanani Md Ali @ Tahir (2020). Genetics of malocclusion: a review. International Journal of Orofacial and Health Sciences, 1 (1). pp. 4-10. ISSN 2716-5434
  8. Joo Ming Cheong, Noraini Abu Bakar (2022). Comparison among parents of special needs and healthy children on their motivation and expectations of their child’s proposed orthodontic treatment: a pilot study. Journal of International Dental and Medical Research, 15 (4). pp. 1602- 1607. ISSN 1309-100X
  9. Danusha Siva Dharma, Noraini Abu Bakar, Basma Ezzat Mustafa Al-Ahmad (2021). Evaluation of salivary leptin levels and its correlation with class i, class ii, and class iii facial skeletal pattern: a prefatory study. European Journal of Dentistry. pp. 1-6. ISSN 1305- 7456
  10. Nurfarhana Mohd Yusoff, Najihah Khajar, Khairani Idah Mokhtar@Makhtar, Noraini Abu Bakar, Wan Rohani Wan Taib (2020). Application of polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique in the analysis of MYO1H single nucleotide polymorphism in Malay mandibular prognathism patients. Archives of Orofacial Sciences, 15 (2). pp. 139-147. ISSN 1823-8602
  11. Fatin Halini Abdul Halim Chong, Siti Nuriyah Md Salleh, Noraini Abu Bakar, Izzati Nabilah Binti Ismail (2019). Does facial appearance of dentofacial deformity influence the need for orthognathic surgery: The Malaysian perception. Singapore Dental Journal, 39 (1). pp. 41- 52.
  12. Yunita Dewi Ardini, Noraini Abu Bakar, Nabila Farhana Kamalul’lail, Noor Syazwani Mohd Rasdi (2018). Assessment of dental development in children with hypodontia and hyperdontia: a case control study. International Medical Journal Malaysia, 17 (Special Issue 2). pp. 205-211. ISSN 1823-4631
  13. Siti Nazirah Yahya, Nurul Syafiqah Abdul Razak, Khairani Idah Mokhtar@Makhtar, Noraini Abu Bakar (2018). A preliminary study on MYO1H single nucleotide polymorphism (rs10850110) in mandibular prognathism in Malay population. Journal of International Dental and Medical Research, 11 (2). pp. 607-613. ISSN 1309-100X
  14. Khadilla Ismail, Siti Sarah Ghazali@Suhaimi, Noraini Abu Bakar, Khairani Idah Mokhtar@Makhtar, Azrul Fazwan Kharuddin (2017). Demographic characteristics and analysis of malocclusions of orthodontic patients seen at IIUM Dental Specialist Clinic, Kuantan, Pahang. International Medical Journal Malaysia, 16 (2). pp. 107-111. ISSN 1823-4631
  15. Azrul Fazwan Kharuddin, Khadilla Ismail, Siti Sarah Ghazali@Suhaimi, Noraini Abu Bakar, Khairani Idah Mokhtar@Makhtar (2016). Latent class analysis of dental treatment:
    Observed in IIUM dental specialist clinic, Kuantan, Pahang. International Medical Journal Malaysia, 17 (Special issue: 2). pp. 313-318. ISSN 1823-4631
  16. Muhammadazril Mohd Saad, Nur Amin Abd Rahman, Khairani Idah Mokhtar@Makhtar, Noraini Abu Bakar, Azrul Fazwan Kharuddin, Wan Rohani Wan Taib (2018). Preliminary study of PAX9 single nucleotide polymorphism (rs8004560) in patients with Class II skeletal base malocclusion contributed by mandibular Archives of Orofacial Sciences, 13 (2). pp. 112-118.
  17. Siti Nazirah Yahya, Nurul Syafiqah Abdul Razak, Noraini Abu Bakar, Khairani Idah Mokhtar@Makhtar, Azrul Fazwan Kharuddin (2017). Analysis Of MYO1H single nucleotide polymorphism in class III malocclusion with mandibular prognathism: A preliminary study. Proceedings of the 1st IIUM International Dental Conference 2017 in Commemoration of the Kulliyyah of Dentistry 10th Anniversary (1st IIDC) The International Medical Journal of Malaysia, 16 (Supplementary Issue No 2). pp. 1-1.
  18. Siti Adibah Othman, Shalene Kereshanan, Wey Mang Chek, Asma Alhusna Awang Abdullah, Noraini Abu Bakar, Aufa Dahlia Bahar, Nik Mukhriz Nik Mustafa, …Wong Tuck Yong (2020) COVID-19 orthodontic practice management guidelines version 1.0 by Malaysian Association of Orthodontists. Malaysian Association of Orthodontists (MAO), Petaling Jaya, Selangor.
  19. Lawrence Tan, Noraini Abu Bakar (2016) Orthodontics and you: Patient information booklet. IIUM Press, Kuala Lumpur. ISBN 978-967-418-376-9
  20. Noraini Abu Bakar, Lawrence Tan (2015) Ortodontik dan anda: Buku maklumat pesakit. IIUM Press, Kuala Lumpur. ISBN 978-967-418-377-6
  21. Siti Hajjar Nasir, Muhammad Syahmi Mohamad Amran, Muhammad Muaz Abidin Mustaffar (2021). Metal release of standard and fake orthodontic braces: an in vitro IIUM Medical Journal Malaysia, 20 (2). pp. 75-80.
  22. Siti Hajjar Nasir, Hashmat Popat, Stephen Richmond (2020). The effect of resting morphological lip shape during lip movement: A three-dimensional motion analysis Heliyon, 6 (6).
  23. Musliana Mustaffa, Siti Hajjar Nasir (2021). Endodontic-orthodontic interrelationship: a review. IIUM Journal of Orofacial and Health Sciences, 2 (2). pp. 70-81.
  24. Kumeran Mohan, Saritha Sivarajan, May Nak Lau, Siti Adibah Othman, and Mona M. Salah Soft tissue changes with skeletal anchorage in comparison to conventional anchorage protocols in the treatment of bimaxillary proclination patients treated with premolar extraction: A systematic review. Journal of Orofacial Orthopedics/Fortschritte der Kieferorthopädie (2022): 1-17.
  25. Mangaiyarkarasi Sivagnanam, Cheong Joo Ming (2023). Establishing cephalometric norms of upper and lower lips to Rickett’s E-line in the Malay female population of Kuantan city: a pilot study. IIUM Journal of Orofacial and Health Sciences, 4(1), 26–32. https://doi.org/10.31436/ijohs.v4i1.164
  26. Cheong Joo Ming, Noraini Abu Bakar (2022). Comparison among Parents of Special Needs and Healthy Children on their Motivation and Expectations of Their Child’s Proposed Orthodontic Treatment: A Pilot Study. Journal of International Dental and Medical Research, 15(4): 1602-1607.
  27. Cheong Joo Ming, Siti Marponga Tolos (2022). Orthodontic pain – the state of the evidence. IIUM Journal of Orofacial and Health Sciences, 3(2): 203-211. https://doi.org/10.31436/ijohs.v3i2.155
  28. Cheong Joo Ming, Norul Madihah M. Ashaari, Razan Hayani Mohamad Yusoff, Siti Marponga Tolos (2022). Effectiveness Of Verbal, Verbal-Written and Video Instructions on Gingival Health of Patients with Fixed Appliances. International Journal of Dentistry and Oral Science, 9(4): 5282-5287. doi: http://dx.doi.org/10.19070/2377-8075-220001058
  29. Cheong Joo Ming (2020). Safe dental practice during the COVID-19 pandemic. IIUM Journal of Orofacial and Health Sciences, 1(2): 106-120.
  30. Nikki Atack, Cheong Joo Ming et al. (2021). Postgraduate Notes in Orthodontics. 9th edition (2021). Child Dental Health Department, Bristol Dental School, University of Bristol, Bristol; ISBN 978-0-9562712-3-5.
  31. Richmond, Stephen, Alexei I. Zhurov, Azrul Bin Mohd Ali, Pertti Pirttiniemi, Tuomo Heikkinen, Virpi Harila, Signe Silinevica, Gundega Jakobsone, and Ilga “Exploring the midline soft tissue surface changes from 12 to 15 years of age in three distinct country population cohorts.” European Journal of Orthodontics 42, no. 5 (2020): 517-524.
  32. Richmond, Stephen, Caryl Wilson-Nagrani, Alexei Zhurov, Damian Farnell, Jennifer Galloway, Azrul Safuan Mohd Ali, Pertti Pirttiniemi, and Visnja “Factors influencing facial shape.” Evidence-Based Orthodontics (2018): 69-81.
  33. Rajadorai S, Tan In-vitro Measurement of the Accuracy of Orthodontic Bracket Slot Size using Scanning Electron Microscopy. Malaysian Dental Journal 2020 (2)
  34. Abu Bakar, Noraini and McDonald, Fraser and Tan, Lawrence (2017) Comparison of mechanical properties between different orthodontic stainless steel Journal of Dental and Oral Health, 3 (8). 091-1-5
  35. Tan C L, Kirti Asymmetric Extractions for an Asymmetric Malocclusion. Indian Journal of Oral Health and Research; 2016 2(2): 110-12
  36. Tan L, Awang C The Occurrence of Patients Presenting with Broken/Lost Removable Appliances. Malaysian Dental Journal (2007), 28 (1): 59-62.
  37. Tan An Audit on Unsupervised Active Orthodontic Patients. Malaysian Dental Journal (2006), 27(2): 106-109.
  1. Orthodontics: Cover wide range of topics but not limited to Malocclusions, Aetiology and diagnosis, Growth, Biological properties, Biomechanics, Clinical Trials, Quality of life, Current and advanced technology, Cephalometric, Materials, Treatment modalities, appliances, mini- implant, education and digitization in the field of orthodontics.
  2. Cleft: Cover wide range of topics in cleft studies but not limited to demographic, treatment and outcome, quality of life and psychological aspects.
  3. Orthognathic: Cover wide range of topics but not limited to Aetiology and diagnosis, Public awareness, Treatment approach, Treatment outcome, Quality of life, Psychological aspects, Materials and Imaging involved in orthognathic.

Leader & Members

  1. Assoc. Prof. Dr. Noraini Abu Bakar (Leader)
  2. Asst. Prof. Dr Siti Hajjar Nasir
  3. Asst. Prof. Dr. Cheong Joo Ming
  4. Asst. Prof. Dr. Azrul Safuan Ali
  5. Asst. Prof. Dr. C Lawrence Tan Soon Lee
  6. Asst. Prof. Dr. Kumeran Mohan

This collaborative, innovative and dynamic research group, aimed to produce good quality, high impact research on three main principal areas, namely orthodontics, cleft and orthognathic. Orthodontics is a specialty in dentistry that addresses the diagnosis, growth modification, prevention, and management of the dentofacial deformities and malocclusion including cleft and orthognathic.

  1. Orthodontics: Cover wide range of topics but not limited to Malocclusions, Aetiology and diagnosis, Growth, Biological properties, Biomechanics, Clinical Trials, Quality of life, Current and advanced technology, Cephalometric, Materials, Treatment modalities, appliances, mini- implant, education and digitization in the field of orthodontics.
  2. Cleft: Cover wide range of topics in cleft studies but not limited to demographic, treatment and outcome, quality of life and psychological aspects.
  3. Orthognathic: Cover wide range of topics but not limited to Aetiology and diagnosis, Public awareness, Treatment approach, Treatment outcome, Quality of life, Psychological aspects, Materials and Imaging involved in orthognathic.
  1. Assoc. Prof. Dr. Noraini Abu Bakar (Leader)
  2. Asst. Prof. Dr Siti Hajjar Nasir
  3. Asst. Prof Dr Cheong Joo Ming
  4. Asst. Prof Dr Azrul Safuan Ali
  5. Asst. Prof Dr C Lawrence Tan Soon Lee
  6. Asst. Prof Dr Kumeran Mohan
  1. Noraini Abu Bakar, Sakinah Azman, Syahirah Syazwani Jaffar, Nor Asilah Harun, Khairani Idah Mokhtar@Makhtar (2020). Demographics and clinical profile of orofacial cleft in International Islamic University Malaysia from 2009 until 2018. Archives of Orofacial Sciences, 15 (2). pp. 97-107. ISSN 1823-8602
  2. Noraini Abu Bakar, Wisam Alaa Kamil, Lina Hilal Abbood Al-Bayati, Basma Ezzat Mustafa Al- Ahmad (2017). Saliva leptin levels in tooth movement during initial stage of orthodontic alignment: a pilot study. Brazilian Journal of Oral Sciences, 16. pp. 1-8. ISSN 1677-3225
  3. Noraini Abu Bakar, Nurul Idayu Jayah, Nurul Rafhana Mohamed, Suhaila Mohamed Ali, Siti Hajjar Nasir, Ridzwan Hashim, Azrul Fazwan Kharuddin (2020). The effectiveness of pure Stichopus horrens extract toothpaste in reducing plaque-induced gingivitis following orthodontic bonding: A triple-blinded randomized controlled trial. Journal of the World Federation of Orthodontists, 9 (1). pp. 3-8. ISSN 2212-4438
  4. Noraini Abu Bakar, Nur Arafiqah Amat, Siti Hajjar Nasir (2023). Demographic of orthognathic cases seen in Kulliyyah of Dentistry IIUM. Journal of Orofacial and Health Sciences, 4 (2). pp. 113-125.
  5. Noraini Abu Bakar (2019). Rawatan orthognatik pilihan terbaik. Harian Metro. pp. 42.
  6. Noraini Abu Bakar (2018). 1-5. An asymmetrical jaw can cause a lot of problems. Star2.com. pp
  7. Khairani Idah Mokhtar@Makhtar, Noraini Abu Bakar, Aisyah Hanani Md Ali @ Tahir (2020). Genetics of malocclusion: a review. International Journal of Orofacial and Health Sciences, 1 (1). pp. 4-10. ISSN 2716-5434
  8. Joo Ming Cheong, Noraini Abu Bakar (2022). Comparison among parents of special needs and healthy children on their motivation and expectations of their child’s proposed orthodontic treatment: a pilot study. Journal of International Dental and Medical Research, 15 (4). pp. 1602- 1607. ISSN 1309-100X
  9. Danusha Siva Dharma, Noraini Abu Bakar, Basma Ezzat Mustafa Al-Ahmad (2021). Evaluation of salivary leptin levels and its correlation with class i, class ii, and class iii facial skeletal pattern: a prefatory study. European Journal of Dentistry. pp. 1-6. ISSN 1305- 7456
  10. Nurfarhana Mohd Yusoff, Najihah Khajar, Khairani Idah Mokhtar@Makhtar, Noraini Abu Bakar, Wan Rohani Wan Taib (2020). Application of polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique in the analysis of MYO1H single nucleotide polymorphism in Malay mandibular prognathism patients. Archives of Orofacial Sciences, 15 (2). pp. 139-147. ISSN 1823-8602
  11. Fatin Halini Abdul Halim Chong, Siti Nuriyah Md Salleh, Noraini Abu Bakar, Izzati Nabilah Binti Ismail (2019). Does facial appearance of dentofacial deformity influence the need for orthognathic surgery: The Malaysian perception. Singapore Dental Journal, 39 (1). pp. 41- 52.
  12. Yunita Dewi Ardini, Noraini Abu Bakar, Nabila Farhana Kamalul’lail, Noor Syazwani Mohd Rasdi (2018). Assessment of dental development in children with hypodontia and hyperdontia: a case control study. International Medical Journal Malaysia, 17 (Special Issue 2). pp. 205-211. ISSN 1823-4631
  13. Siti Nazirah Yahya, Nurul Syafiqah Abdul Razak, Khairani Idah Mokhtar@Makhtar, Noraini Abu Bakar (2018). A preliminary study on MYO1H single nucleotide polymorphism (rs10850110) in mandibular prognathism in Malay population. Journal of International Dental and Medical Research, 11 (2). pp. 607-613. ISSN 1309-100X
  14. Khadilla Ismail, Siti Sarah Ghazali@Suhaimi, Noraini Abu Bakar, Khairani Idah Mokhtar@Makhtar, Azrul Fazwan Kharuddin (2017). Demographic characteristics and analysis of malocclusions of orthodontic patients seen at IIUM Dental Specialist Clinic, Kuantan, Pahang. International Medical Journal Malaysia, 16 (2). pp. 107-111. ISSN 1823-4631
  15. Azrul Fazwan Kharuddin, Khadilla Ismail, Siti Sarah Ghazali@Suhaimi, Noraini Abu Bakar, Khairani Idah Mokhtar@Makhtar (2016). Latent class analysis of dental treatment:
    Observed in IIUM dental specialist clinic, Kuantan, Pahang. International Medical Journal Malaysia, 17 (Special issue: 2). pp. 313-318. ISSN 1823-4631
  16. Muhammadazril Mohd Saad, Nur Amin Abd Rahman, Khairani Idah Mokhtar@Makhtar, Noraini Abu Bakar, Azrul Fazwan Kharuddin, Wan Rohani Wan Taib (2018). Preliminary study of PAX9 single nucleotide polymorphism (rs8004560) in patients with Class II skeletal base malocclusion contributed by mandibular Archives of Orofacial Sciences, 13 (2). pp. 112-118.
  17. Siti Nazirah Yahya, Nurul Syafiqah Abdul Razak, Noraini Abu Bakar, Khairani Idah Mokhtar@Makhtar, Azrul Fazwan Kharuddin (2017). Analysis Of MYO1H single nucleotide polymorphism in class III malocclusion with mandibular prognathism: A preliminary study. Proceedings of the 1st IIUM International Dental Conference 2017 in Commemoration of the Kulliyyah of Dentistry 10th Anniversary (1st IIDC) The International Medical Journal of Malaysia, 16 (Supplementary Issue No 2). pp. 1-1.
  18. Siti Adibah Othman, Shalene Kereshanan, Wey Mang Chek, Asma Alhusna Awang Abdullah, Noraini Abu Bakar, Aufa Dahlia Bahar, Nik Mukhriz Nik Mustafa, …Wong Tuck Yong (2020) COVID-19 orthodontic practice management guidelines version 1.0 by Malaysian Association of Orthodontists. Malaysian Association of Orthodontists (MAO), Petaling Jaya, Selangor.
  19. Lawrence Tan, Noraini Abu Bakar (2016) Orthodontics and you: Patient information booklet. IIUM Press, Kuala Lumpur. ISBN 978-967-418-376-9
  20. Noraini Abu Bakar, Lawrence Tan (2015) Ortodontik dan anda: Buku maklumat pesakit. IIUM Press, Kuala Lumpur. ISBN 978-967-418-377-6
  21. Siti Hajjar Nasir, Muhammad Syahmi Mohamad Amran, Muhammad Muaz Abidin Mustaffar (2021). Metal release of standard and fake orthodontic braces: an in vitro IIUM Medical Journal Malaysia, 20 (2). pp. 75-80.
  22. Siti Hajjar Nasir, Hashmat Popat, Stephen Richmond (2020). The effect of resting morphological lip shape during lip movement: A three-dimensional motion analysis Heliyon, 6 (6).
  23. Musliana Mustaffa, Siti Hajjar Nasir (2021). Endodontic-orthodontic interrelationship: a review. IIUM Journal of Orofacial and Health Sciences, 2 (2). pp. 70-81.
  24. Kumeran Mohan, Saritha Sivarajan, May Nak Lau, Siti Adibah Othman, and Mona M. Salah Soft tissue changes with skeletal anchorage in comparison to conventional anchorage protocols in the treatment of bimaxillary proclination patients treated with premolar extraction: A systematic review. Journal of Orofacial Orthopedics/Fortschritte der Kieferorthopädie (2022): 1-17.
  25. Mangaiyarkarasi Sivagnanam, Cheong Joo Ming (2023). Establishing cephalometric norms of upper and lower lips to Rickett’s E-line in the Malay female population of Kuantan city: a pilot study. IIUM Journal of Orofacial and Health Sciences, 4(1), 26–32. https://doi.org/10.31436/ijohs.v4i1.164
  26. Cheong Joo Ming, Noraini Abu Bakar (2022). Comparison among Parents of Special Needs and Healthy Children on their Motivation and Expectations of Their Child’s Proposed Orthodontic Treatment: A Pilot Study. Journal of International Dental and Medical Research, 15(4): 1602-1607.
  27. Cheong Joo Ming, Siti Marponga Tolos (2022). Orthodontic pain – the state of the evidence. IIUM Journal of Orofacial and Health Sciences, 3(2): 203-211. https://doi.org/10.31436/ijohs.v3i2.155
  28. Cheong Joo Ming, Norul Madihah M. Ashaari, Razan Hayani Mohamad Yusoff, Siti Marponga Tolos (2022). Effectiveness Of Verbal, Verbal-Written and Video Instructions on Gingival Health of Patients with Fixed Appliances. International Journal of Dentistry and Oral Science, 9(4): 5282-5287. doi: http://dx.doi.org/10.19070/2377-8075-220001058
  29. Cheong Joo Ming (2020). Safe dental practice during the COVID-19 pandemic. IIUM Journal of Orofacial and Health Sciences, 1(2): 106-120.
  30. Nikki Atack, Cheong Joo Ming et al. (2021). Postgraduate Notes in Orthodontics. 9th edition (2021). Child Dental Health Department, Bristol Dental School, University of Bristol, Bristol; ISBN 978-0-9562712-3-5.
  31. Richmond, Stephen, Alexei I. Zhurov, Azrul Bin Mohd Ali, Pertti Pirttiniemi, Tuomo Heikkinen, Virpi Harila, Signe Silinevica, Gundega Jakobsone, and Ilga “Exploring the midline soft tissue surface changes from 12 to 15 years of age in three distinct country population cohorts.” European Journal of Orthodontics 42, no. 5 (2020): 517-524.
  32. Richmond, Stephen, Caryl Wilson-Nagrani, Alexei Zhurov, Damian Farnell, Jennifer Galloway, Azrul Safuan Mohd Ali, Pertti Pirttiniemi, and Visnja “Factors influencing facial shape.” Evidence-Based Orthodontics (2018): 69-81.
  33. Rajadorai S, Tan In-vitro Measurement of the Accuracy of Orthodontic Bracket Slot Size using Scanning Electron Microscopy. Malaysian Dental Journal 2020 (2)
  34. Abu Bakar, Noraini and McDonald, Fraser and Tan, Lawrence (2017) Comparison of mechanical properties between different orthodontic stainless steel Journal of Dental and Oral Health, 3 (8). 091-1-5
  35. Tan C L, Kirti Asymmetric Extractions for an Asymmetric Malocclusion. Indian Journal of Oral Health and Research; 2016 2(2): 110-12
  36. Tan L, Awang C The Occurrence of Patients Presenting with Broken/Lost Removable Appliances. Malaysian Dental Journal (2007), 28 (1): 59-62.
  37. Tan An Audit on Unsupervised Active Orthodontic Patients. Malaysian Dental Journal (2006), 27(2): 106-109.