Seminar orthodontics question 2
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Seminar Orthodontics Question 2. Group 4: Marshitah Ab Wahid1090040 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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Seminar orthodontics question 2

Seminar OrthodonticsQuestion 2

Group 4:

MarshitahAb Wahid1090040

MohdAzizulMohdAtan1090042

NurAmalinaZulkepre1090044

Nurmarzura Abdul Latif1090045

NurulAsmat Abdul Rahman1090048

SyafiqahNadhirahIskandar1090049

Ahmad FaisHjMohdAbdRasid1090312


Seminar orthodontics question 2

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


Introduction

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.


Qualitative

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)


Summary of qualitative methods of recording malocclusion

Summary of qualitative methods of recording malocclusion


Malocclusion classification based on intra arch proble m

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


Intra arch problems

Intra-arch problems

  • Labioversion :A tooth that has assumed a position labial to normal

  • Lingoversion: Position lingual to normal


Seminar orthodontics question 2

  • Palatoversion: Position palatal to normal

  • Buccoversion: Position buccal to normal


Seminar orthodontics question 2

  • Supraversion : Over-erupted beyond the level of occlusion

  • Infraversion: Depressed below the line of occlusion, for example, primary tooth that is submerged or ankylosed


Seminar orthodontics question 2

  • Torsiversion: rotated on its long axis


Classification of crowding

Classification of crowding

Mild = <4mm

Moderate = 4-8mm

Severe = > or equal to 8mm


Reference

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


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