How to Prepare Orthodontics for MDS Entrance Exams

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Becoming an orthodontist is a dream for many aspirants and thus, is a highly demanded specialty among the PG aspirants. A definite schedule along with dedication is all you need while preparing this subject in order to crack MDS entrance exams.

As days are numbered, reliable study plan and selective study approach is imperative to prepare this subject. However, some of the topics that you covered in pedodontics will be revised here and thus, you can dedicate rest of the time on the remaining topics.

Moreover, to assist you in your preparations, we bring forth this blog to enlighten you about how to prepare this subject and topics that are most important for preparing orthodontics.

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Tips to Prepare

  • To cover the syllabus on time, you must prepare a definite schedule and should strictly follow it.
  • Prepare notes and flashcards.
  • Revise regularly as revision leads to longer retention.
  • Take subject-wise mock tests to increase your preparation level.

 

Vital topics to be prepared in Orthodontics for MDS entrance exams:

TOPIC

SUB-TOPIC

GROWTH & DEVELOPMENT: INTRODUCTION
  • Inventions and Discoveries: For example - Father of modern orthodontics etc.
  • Growth of mandible/maxilla - Ossification centers of mandible
  • Functional Matrix Theory
  • Sicher Sutural Theory
  • Enlow’s V-principle
  • Scammon’s growth curve - neural  and lymphoid
  • Primary and secondary displacement - Mechanism of bone growth
  • Spheno-occipital synchondrosis – Its basic concept and definition

DEVELOPMENT OF DENTITION
  • Incisal liability
  • Baumes’s classification of primary molars
  • Flush Terminal Plane - features in mixed and permanent dentition
  • Ugly duckling stage – its definition and basic concept/ Broadbent phenomenon
  • Self-correcting anomalies during Development Of Occlusion –EXAMPLE:

Primary Dentition

  • Midline diastema and ugly duckling stage
  • Lingual eruption of mandibular permanent incisors
  • End on molar relation
  • Anterior deep bite

And  similarly  features for predental period, mixed dentition, early permanent dentition

MALOCCLUSION
  • Andrew’s keys to normal occlusion
  • Skeletal malocclusion
  • Angle’s system of classification – its features and causes

CEPHALOMETRICS
  • Cephalometric Apparatus
  • Cephalometric landmarks - Bolton’s point, Basion, Median points, Point A
  • Frankfort Horizontal Plane
  • Tweed’s analysis - Type B and Type C
  • Down’s analysis - Mandibular  plane angle, Y- axis

SKELETAL MATURITY INDICATORS
  • Methods available
  • Fishman’s skeletal maturity indicators

BIOLOGY OF TOOTH MOVEMENT
  • Histology of tooth movement
  • Type of tooth movement and m/f ratios- controlled tipping, torque
  • Mechanics of tooth movement - Centre of resistance

ANCHORAGE
  • Moyer’s classification

PREVENTIVE AND INTERCEPTIVE ORTHODONTICS
  • Space maintainers - removable or fixed, functional or non-functional
  • Distalization of molars
  • Wilkinson’s extraction
  • Ashley Howe’s analysis

REMOVABLE APPLIANCES
  • Clasps-  types, uses
  • Anterior bite plane
  • Posterior bite plane
  • Springs-  types, mode of activation

FIXED APPLIANCE
  • Passive components/active components
  • Brackets
  • Elastics - Class 2 elastics/Baker’s elastics

MYOFUNCTIONAL  APPLIANCES (FUNCTIONAL APPLIANCES)
  • Classification of functional appliances - removable; tooth borne and tissue borne
  • Fixed functional appliance – Rigid  and Flexible (names)
  • Vestibular screen
  • Introduced by
  • Indications
  • Modifications
  • Frankel appliance - Types  and mode of action
  • Head gear
  • Chin cup
  • Lip bumper
  • Activator (Bionator)
  • Twin block
  • Jasper jumper

SURGICAL ORTHODONTICS
  • Skeletal anomalies with their treatment. Example:

Mandibular prognathism -(treatment) Saggital split osteotomy with mandibular set back; oblique subcondylar (subsigmoid) osteotomy

RETENTION AND RELAPSE
  • Types of retention - Prolonged or Permanent Retention
  • Retainers- Fixed And Removable
  • Retention Time

GOOD TO KNOW TOPICS
  • Incidence of cleft lip/palate
  • Deckbiss/German malocclusion
  • Bite plane - Catlan’s appliance
  • Dontrix gauge
  • Centroid
  • Edge
  • Rickets line (esthetic plane)

 

Reference BOOKS:

Foreign Authors:

  • Contemporary Orthodontics- William R. Proffit
  • Graber's Textbook Of Orthodontics

Indian Authors:

  • Textbook of Orthodontics- Gurkeerat Singh
  • Orthodontics- The Art and Science- S.I Bhalajhi

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We hope this blog will benefit you in preparing orthodontics for MDS entrance exams.

 

 

Stay committed and prepare judiciously..

 

Good Luck!!

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