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Orthodontics - Quiz
Contributed by: Stokes
  • 1. Orthodontics is a branch of dentistry that deals with the diagnosis, prevention, and correction of malpositioned teeth and jaws. It focuses on straightening teeth, fixing bites, and enhancing the overall appearance of the teeth and face. Orthodontic treatment can involve the use of braces, aligners, retainers, and other appliances to move teeth into the desired position. By improving the alignment of the teeth, orthodontics can enhance dental health, improve chewing and speech functions, and boost self-confidence. Orthodontists are specialized dentists who have received additional training in this field to provide expert care and guidance to patients seeking orthodontic treatment.

    Which of the following appliances is commonly used in orthodontic treatment?
A) Veneers
B) Braces
C) Bridges
D) Dentures
  • 2. What is an orthodontic consultation?
A) A procedure to extract wisdom teeth.
B) A check-up for tooth decay.
C) Teeth cleaning session.
D) An initial appointment with an orthodontist to assess dental alignment issues.
  • 3. What are some benefits of orthodontic treatment?
A) Improved appearance, enhanced oral health, better speech and chewing function.
B) Worsens dental alignment, increases cavities, causes pain.
C) No effect on appearance, same oral health, no change in speech or chewing.
D) Causes tooth loss, poor oral health, speech problems.
  • 4. What is the purpose of headgear in orthodontic treatment?
A) To extract teeth.
B) To clean teeth.
C) To apply braces.
D) To correct the alignment of the upper teeth and jaw growth.
  • 5. What is the purpose of a lingual arch in orthodontics?
A) To extract teeth.
B) To straighten crooked teeth.
C) To apply braces.
D) To maintain space between molars and prevent them from drifting forward.
  • 6. What is a fixed retainer?
A) A thin wire bonded to the back of the teeth to maintain alignment.
B) A tool used to whiten teeth.
C) A removable device worn to protect teeth.
D) A device to straighten crooked teeth.
  • 7. What is the role of an orthodontic separator?
A) To create space between teeth to prepare for the placement of bands or other orthodontic appliances.
B) To reshape teeth.
C) To clean teeth.
D) To extract teeth.
  • 8. What is an overjet in orthodontics?
A) The horizontal overlap of the upper front teeth over the lower front teeth.
B) A treatment for gum disease.
C) A type of oral surgery.
D) A method of tooth whitening.
  • 9. What is an overbite in orthodontics?
A) A method of straightening teeth.
B) A treatment for gum disease.
C) A type of oral surgery.
D) A condition where the upper front teeth overlap the lower front teeth vertically.
  • 10. What is an orthodontic assessment?
A) A cosmetic teeth whitening procedure.
B) A check-up for cavities.
C) A routine tooth extraction.
D) An evaluation of a patient's teeth and jaws to determine the need for treatment.
  • 11. What is the purpose of orthodontic wax?
A) To fill cavities.
B) To provide relief from irritation caused by braces or other orthodontic appliances.
C) To whiten teeth.
D) To extract teeth.
  • 12. What is orthodontics also referred to as?
A) Endodontics
B) Periodontics
C) Orthodontia
D) Prosthodontics
  • 13. What is the approximate worldwide prevalence of malocclusion?
A) 56%
B) 25%
C) 40%
D) 75%
  • 14. When is it usually best to begin orthodontic treatment?
A) After the age of 30
B) During late adulthood
C) Before a person reaches adulthood
D) Only after all permanent teeth have erupted
  • 15. What was the main issue with implementing the Pin and Tube appliance?
A) Lack of theoretical benefits
B) Incompatibility with modern techniques
C) Absence of any practical application
D) Troublesome implementation in reality
  • 16. What was the orientation of the slot in the original ribbon arch?
A) Circular
B) Diagonal
C) Vertical
D) Horizontal
  • 17. Which orthodontic appliance approach typically begins with round wires before transitioning to rectangular archwires?
A) Begg appliance
B) Tip-Edge system
C) E-arch
D) Edgewise appliance
  • 18. Which of Edward Angle's systems was based on a rigid framework and inter-maxillary elastics?
A) Pin and tube appliance
B) Ribbon arch system
C) E-arch system
D) Edgewise system
  • 19. Who is known as the 'father of modern orthodontics'?
A) Edward Angle
B) Charles Tweed
C) Raymond Begg
D) Norman Kingsley
  • 20. Which appliance system was based solely on round wires and auxiliary springs?
A) E-arch
B) Edgewise appliance
C) Begg appliance
D) Tip-Edge system
  • 21. What is the primary difference between 18- and 22-slot edgewise appliances?
A) Both types of slots eliminate the need for compensating bends.
B) They are used differently but both have not pursued a 20-slot device.
C) The 18-slot appliance has more precise features than the 22-slot.
D) The 22-slot appliance is considered obsolete.
  • 22. What were the optimal dimensions for the Edgewise appliance?
A) 16 × 20 mils
B) 22 × 28 mils
C) 18 × 24 mils
D) 30 × 36 mils
  • 23. How often must orthodontic certification be renewed in the United States?
A) Once, never again
B) Annually
C) Every five years
D) Every ten years
  • 24. In which decade was orthodontics recognized as a specialty by the American Dental Association?
A) 1980s
B) 1950s
C) 1920s
D) 2000s
  • 25. Which therapy is NOT mentioned as a method to reduce pain during orthodontic treatment?
A) Acupuncture
B) Vibratory devices
C) Cognitive behavioral therapy
D) Low-level laser therapy (LLLT)
  • 26. Who developed different brackets for each tooth in the 1980s?
A) Edward Angle
B) Inventor of Lewis brackets
C) L.F. Andrews
D) Creator of Lang brackets
  • 27. How long is the post-graduation orthodontic training in Bangladesh?
A) One year
B) Three years
C) Two years
D) Six months
  • 28. Which type of retainer is made from clear plastic and custom-fitted for the patient's mouth?
A) Hawley retainer
B) Labial brace
C) Removable retainer
D) Fixed retainer
  • 29. Which appliance emerged in the early 21st century allowing for precise control with rectangular archwires?
A) E-arch
B) Begg appliance
C) Tip-Edge system
D) Pin and tube appliance
  • 30. In what year was the Edgewise appliance first introduced?
A) 1940
B) 1915
C) 1935
D) 1928
  • 31. Which country is mentioned as having a specific system for training and registering orthodontic specialists?
A) Japan
B) Brazil
C) Canada
D) Australia
  • 32. What is the duration of the Orthodontic Specialty Training Registrar program in the UK?
A) Four years
B) Three years
C) Five years
D) Two years
  • 33. How many years of post-doctoral specialty training does the Canadian Dental Association expect orthodontists to complete?
A) Four years
B) Three years
C) One year
D) At least two years
  • 34. What is required to work as an orthodontic consultant in a hospital setting in the UK?
A) Only a Certificate of Completion of Specialty Training (CCST)
B) Higher-level training as a post-CCST trainee
C) A Bachelor's degree
D) No additional training
  • 35. What did Raymond Begg modify in the ribbon arch appliance?
A) He incorporated rectangular slots for crown tipping
B) He added bands on first molars with heavy lingual wires
C) He inverted the bracket so it pointed toward the gums.
D) He used two 10-mil steel archwires
  • 36. During the initial stages of treatment with Tip-Edge brackets, what type of archwires should be used?
A) Small-diameter steel archwires.
B) Large-diameter stainless steel wires
C) High-strength round stainless steel wire
D) Two 10-mil steel archwires
  • 37. What type of orthodontic appliance is made from a combination of plastic and metal?
A) Fixed retainer
B) Vivera Retainer
C) Hawley retainer
D) Essix Retainer
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