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Orthodontics - Test
  • 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) Braces
D) Dentures
  • 2. What is an orthodontic consultation?
A) An initial appointment with an orthodontist to assess dental alignment issues.
B) A check-up for tooth decay.
C) Teeth cleaning session.
D) A procedure to extract wisdom teeth.
  • 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 correct the alignment of the upper teeth and jaw growth.
B) To clean teeth.
C) To apply braces.
D) To extract teeth.
  • 5. What is the purpose of a lingual arch in orthodontics?
A) To straighten crooked teeth.
B) To apply braces.
C) To maintain space between molars and prevent them from drifting forward.
D) To extract teeth.
  • 6. What is a fixed retainer?
A) A thin wire bonded to the back of the teeth to maintain alignment.
B) A removable device worn to protect teeth.
C) A device to straighten crooked teeth.
D) A tool used to whiten teeth.
  • 7. What is the role of an orthodontic separator?
A) To extract teeth.
B) To create space between teeth to prepare for the placement of bands or other orthodontic appliances.
C) To reshape teeth.
D) To clean teeth.
  • 8. What is an overjet in orthodontics?
A) A type of oral surgery.
B) The horizontal overlap of the upper front teeth over the lower front teeth.
C) A method of tooth whitening.
D) A treatment for gum disease.
  • 9. What is an overbite in orthodontics?
A) A type of oral surgery.
B) A method of straightening teeth.
C) A treatment for gum disease.
D) A condition where the upper front teeth overlap the lower front teeth vertically.
  • 10. What is an orthodontic assessment?
A) A check-up for cavities.
B) A routine tooth extraction.
C) A cosmetic teeth whitening procedure.
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 whiten teeth.
B) To extract teeth.
C) To fill cavities.
D) To provide relief from irritation caused by braces or other orthodontic appliances.
  • 12. What is orthodontics also referred to as?
A) Endodontics
B) Prosthodontics
C) Periodontics
D) Orthodontia
  • 13. What is the approximate worldwide prevalence of malocclusion?
A) 40%
B) 25%
C) 75%
D) 56%
  • 14. When is it usually best to begin orthodontic treatment?
A) Only after all permanent teeth have erupted
B) During late adulthood
C) Before a person reaches adulthood
D) After the age of 30
  • 15. What was the main issue with implementing the Pin and Tube appliance?
A) Troublesome implementation in reality
B) Incompatibility with modern techniques
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) Edgewise appliance
B) Tip-Edge system
C) Begg appliance
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) Edgewise system
D) E-arch system
  • 19. Who is known as the 'father of modern orthodontics'?
A) Norman Kingsley
B) Raymond Begg
C) Charles Tweed
D) Edward Angle
  • 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) 30 × 36 mils
B) 18 × 24 mils
C) 22 × 28 mils
D) 16 × 20 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) Cognitive behavioral therapy
B) Acupuncture
C) Vibratory devices
D) Low-level laser therapy (LLLT)
  • 26. Who developed different brackets for each tooth in the 1980s?
A) Edward Angle
B) L.F. Andrews
C) Creator of Lang brackets
D) Inventor of Lewis brackets
  • 27. How long is the post-graduation orthodontic training in Bangladesh?
A) Two years
B) Three years
C) Six months
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) Hawley retainer
C) Removable retainer
D) Labial brace
  • 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) E-arch
D) Begg appliance
  • 30. In what year was the Edgewise appliance first introduced?
A) 1940
B) 1928
C) 1915
D) 1935
  • 31. Which country is mentioned as having a specific system for training and registering orthodontic specialists?
A) Canada
B) Australia
C) Brazil
D) Japan
  • 32. What is the duration of the Orthodontic Specialty Training Registrar program in the UK?
A) Four years
B) Five years
C) Three years
D) Two years
  • 33. How many years of post-doctoral specialty training does the Canadian Dental Association expect orthodontists to complete?
A) One year
B) Three years
C) At least two years
D) Four years
  • 34. What is required to work as an orthodontic consultant in a hospital setting in the UK?
A) Higher-level training as a post-CCST trainee
B) A Bachelor's degree
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 inverted the bracket so it pointed toward the gums.
B) He added bands on first molars with heavy lingual wires
C) He incorporated rectangular slots for crown tipping
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) High-strength round stainless steel wire
C) Two 10-mil steel archwires
D) Large-diameter stainless steel wires
  • 37. What type of orthodontic appliance is made from a combination of plastic and metal?
A) Vivera Retainer
B) Essix Retainer
C) Fixed retainer
D) Hawley retainer
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