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