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