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

• 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
  • Nonfunctional maintainers can cause supra eruption of opposing teeth
  • Functional space maintainer can interfere with vertical eruption of abutment teeth
  • Expert skill and elaborate instrumentation are 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:
  • Restoring the carious teeth at the proper time
  • To prevent early loss of deciduous
  • Includes – application of topical fluorides
  • Pit and fissure sealants
• Extraction of Supernumerary teeth:
  • As it interferes with the eruption of adjacent teeth
  • Deflects its eruptive path
• Eliminate occlusal interference:
  • As occlusal prematurities deviate path of closure
• Maintenance of tooth shedding timetable:
  • More than 3 months difference should not be present between the shedding of deciduous and eruption of permanent
• Management of Ankylosed teeth:
  • Ankylosed tooth prevents eruption of permanent and deflects their eruption path
  • Thus, they should be removed
• Management of Abnormal Frenal Attachment:
  • Abnormal frenum – leads to mid-line diastema
• Management of Habits:
  • Habits lead 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 the mandible
• Space maintainers:
  • Definition: It is a device used to maintain the space created by the loss of a 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 a deciduous tooth.

Space Maintainers Requirements:

• Maintain the space created
• Restores function
• 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

Planning:

Depends on:

• Time elapsed
• Dental age enters 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 a deciduous tooth.

Space Maintainers Requirements:

• Maintain the space created
• Restores function
• 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.

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

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