Preventive Orthodontics Question And Answers

Preventive Orthodontics Important Notes

Classification of space maintainers:

  • According to Hitchcock:
    • Removable/Fixed/Semi-fixed
    • With bands/without bands/
    • Functional/non-functional
    • Active/Passive
    • Combinations
  • According to Raymond:
    • Removable
    • Complete arch
    • Individual tooth
  • According to Hinrechsen:
    • Fixed
      • Class 1 – Non-functional
      • Functional:
      • Class 2 – Cantilever type
    • Removable – Acrylic partial dentures
  • Distal shoe space maintainer
    • Indications:
      • Loss of primary 2nd molar before eruption of permanent first molar
    • Contra-indications:
      • Patient with heart disease
      • Patient with poor oral hygiene
      • Haemophilic patients
  • Indications of various space maintainers

Orthodontics Preventive Orthodontics Space maintainers

  • Factors considered for space maintainers
    • Time elapsed since loss of teeth
    • Dental age of patients
    • Thickness of be one covering the unerupted teeth
    • Sequence of eruption of teeth
    • Congenital absence of permanent teeth
  • Disadvantages of fixed space maintainers
    • Non functional maintainers can cause supra eruption of opposing teeth
    • Functional space maintainer can interfere with vertical eruption of abutment teeth
    • Expert skill and elaborate instrumentation is needed
    • Decalcification of tooth under bands

Preventive Orthodontics Long Essays

Question 1. Define preventive orthodontics. Discuss various preventive orthodontic procedures
Answer.

Definition: According to Graber it is defined as the action taken to preserve the integrity of what appears to be a normal occlusion at a specific time.

Procedures Of Preventive Orthodontics:

  • Parent Education: To expected/lactating mothers
  • Caries Control: Especially proximal caries – leads to loss of arch
  • Care of Deciduous Dentition:
    • By restoring the carious teeth at proper time
    • To prevent early loss of deciduous
    • Includes – applicarion of topical fluorides
    • Pit and fissure sealants
  • Extraction of Supernumerary teeth:
    • As it interfere with eruption of adjacent teeth
    • Deflects its eruptive path
  • Eliminate occlusal interference:
    • As occlusal prematurities deviate path of closure
  • Maintenance of tooth shedding time table:
    • More than 3 months difference should not be present between shedding of deciduous and eruption of permanent
  • Management of Ankylosed teeth:
    • Ankylosed tooth prevents eruption of permanent and deflect their eruption path
    • Thus, they should be removed
  • Management of Abnormal Frenal Attachment:
    • Abnormal frenum – leads to mid line diastema
  • Management of Habits:
    • Habits leads to malocclusion
  • Management of deeply locked permanent first molars:
    • Prominent distal bulge of deciduous second molars prevents eruption of first permanent molar
  • Preventing Milwaukee Brace damage:
    • Milwaukee Brace used for correction of scoliosis
    • But this leads to retardation of mandible
  • Space maintainers:
    • Definition: It is a device used to maintain the space created by the loss of deciduous tooth.

Classifications Of Preventive Orthodontics:

  • According to Hitchcock:
    • Removable/Fixed/Semi-fixed
    • With bands/without bands
    • Functional/non-functional
    • Active/Passive
    • Combinations
  • According to Raymond:
    • Removable
    • Complete arch
    • Individual tooth
  • According to Hinrechsen:
    • Fixed
      • Class 1 – Non-functional
      • Functional:
      • Class 2 – Cantilever type
  • Removable – Acrylic partial dentures

Preventive Orthodontics Short Essays

Question 1. Space Maintainers.
Answer.

Definition: It is a device used to maintain the space created by the loss of deciduous tooth.

Space Maintainers Requirements:

  • Maintain the space created
  • Restores functions
  • Prevent supra eruption of opposing teeth
  • Simple to construct
  • Withstand functional forces
  • Do not exert excessive stress
  • Maintain oral hygiene
  • Allow growth of permanent
  • Not interfere during oral functions

Classifications Of Space Maintainers:

  • According to Hitchcock:
    • Removable/Fixed/Semi-fixed
    • With bands/without bands
    • Functional/non-functional
    • Active/Passive

Read And Learn More: Orthodontics Short And Long Essay Question And Answers 

    • Combinations
  • According to Raymond:
    • Removable
    • Complete arch
    • Individual tooth
  • According to Hinrechsen:
    • Fixed:
      • Class 1 – Non-functional
      • Functional
      • Class 2 – Cantilever type
    • Removable – Acrylic partial dentures

Orthodontics Preventive Orthodontics Removable

Planning:

Depends on:

  • Time elapsed
  • Dental age enter Sequence of eruption
  • Thickness of bone
  • Sequence of eruption

Preventive Orthodontics Short Questions And Answers

Question 1. Define Preventive and Interceptive Orthodontics.
Answer.

Preventive Orthodontics:

According to Graber it is defined as the action taken to preserve the integrity of what appears to be a normal occlusion at a specific time.

Interceptive Orthodontics:

It is defined as that phase of the science and art of orthodontics employed to recognize and eliminate potential irregularities and malpositions of the developing dentofacial complex.

Question 2. Space maintainers.
Answer.

Definition: It is a device used to maintain the space created by the loss of deciduous tooth.

Space Maintainers Requirements:

  • Maintain the space created
  • Restores functions
  • Prevent supra eruption of opposing teeth
  • Simple to construct
  • Withstand functional forces
  • Do not exert excessive stress
  • Maintain oral hygiene
  • Allow growth of permanent
  • Not interfere during oral functions

Question 3. Distal Shoe Space Maintainers.
Answer.

Orthodontics Preventive Orthodontics Distal shoe space maintainer

Synonym: Intra-alveolar appliance

Uses:

  • Guides the unerupted first permanent molar
  • Used in case of premature loss of second primary molar
  • Controls path of eruption
  • Prevents mesial migration

Preventive Orthodontics Viva Voce

  • Crib appliance is placed palatal to maxillary incisor
  • Distal shoe space maintainer is a cantilever type of space maintainer
  • Band and loop is most effective space maintainer in lower arch
  • Preventive orthodontics is undertaken before development of malocclusion
  • Deciduous dentition is classical example of natural space maintainer
  • Nance holding arch derives its support from anterior plate
  • Crown and loop is preferred when there is carious tooth adjacent to the space

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