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Seminar Orthodontics Question 2. Group 4: Marshitah Ab Wahid 1090040 Mohd Azizul Mohd Atan 1090042 Nur Amalina Zulkepre 1090044 Nurmarzura Abdul Latif 1090045 Nurul Asmat Abdul Rahman 1090048 Syafiqah Nadhirah Iskandar 1090049 Ahmad Fais Hj Mohd Abd Rasid 1090312.

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Seminar Orthodontics Question 2


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    1. Seminar OrthodonticsQuestion 2 Group 4: MarshitahAb Wahid 1090040 MohdAzizulMohdAtan 1090042 NurAmalinaZulkepre 1090044 Nurmarzura Abdul Latif 1090045 NurulAsmat Abdul Rahman 1090048 SyafiqahNadhirahIskandar 1090049 Ahmad FaisHjMohdAbdRasid 1090312

    2. Methods of recording malocclusion-qualitative, quantitative-intra-arch, inter-arch problem including classification of malocclusion

    3. Introduction • The methods of recording and measuring malocclusion can be broadly divided into two types: qualitative and quantitative. • Qualitative evaluation of malocclusion was attempted before quantitative methods. • Definition (Qualitative): It is a descriptive classification and it does not provide any information of the treatment need and outcome.

    4. Qualitative • Angle’s method (1899) of classifying malocclusion with or without modifications • Stallard (1932) • Mc Call (1944) • Sclare (1945) • Fisk (1960) • Bjork, Krebs ans Solow (1964) • Proffit and Ackerman (1973) • WHO/FDI (1979)

    5. Summary of qualitative methods of recording malocclusion

    6. Malocclusion: Classification based on intra-arch problem Intra-arch problems: malpositions of individual or group of teeth in the same arch i. Sagittalproblems Labioversion Linguoversion Mesioversion Distoversion ii. Transverse problems Crowding Spacing Linguoversion Buccoversion iii. Vertical problems Supraversion Infraversion iv. Rotated teeth v. Transposition of teeth

    7. Intra-arch problems • Labioversion :A tooth that has assumed a position labial to normal • Lingoversion: Position lingual to normal

    8. Palatoversion: Position palatal to normal • Buccoversion: Position buccal to normal

    9. Supraversion : Over-erupted beyond the level of occlusion • Infraversion: Depressed below the line of occlusion, for example, primary tooth that is submerged or ankylosed

    10. Torsiversion: rotated on its long axis

    11. Classification of crowding Mild = <4mm Moderate = 4-8mm Severe = > or equal to 8mm

    12. Reference • Hassan R, Rahimah AK,2007; Review Article; Occlusion, malocclusion and method of measurements-an overview. • Anirudh Agarwal, Rinku Mathur, 2012, An Overview of Orthodontic Indices