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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) Dentures
B) Veneers
C) Braces
D) Bridges
  • 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) Worsens dental alignment, increases cavities, causes pain.
B) Causes tooth loss, poor oral health, speech problems.
C) No effect on appearance, same oral health, no change in speech or chewing.
D) Improved appearance, enhanced oral health, better speech and chewing function.
  • 4. What is the purpose of headgear in orthodontic treatment?
A) To apply braces.
B) To extract teeth.
C) To correct the alignment of the upper teeth and jaw growth.
D) To clean teeth.
  • 5. What is the purpose of a lingual arch in orthodontics?
A) To straighten crooked teeth.
B) To extract 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 device to straighten crooked teeth.
B) A thin wire bonded to the back of the teeth to maintain alignment.
C) A tool used to whiten teeth.
D) A removable device worn to protect 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 clean teeth.
D) To reshape 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 treatment for gum disease.
D) A method of tooth whitening.
  • 9. What is an overbite in orthodontics?
A) A treatment for gum disease.
B) A method of straightening teeth.
C) A condition where the upper front teeth overlap the lower front teeth vertically.
D) A type of oral surgery.
  • 10. What is an orthodontic assessment?
A) A check-up for cavities.
B) An evaluation of a patient's teeth and jaws to determine the need for treatment.
C) A routine tooth extraction.
D) A cosmetic teeth whitening procedure.
  • 11. What is the purpose of orthodontic wax?
A) To fill cavities.
B) To extract teeth.
C) To whiten teeth.
D) To provide relief from irritation caused by braces or other orthodontic appliances.
  • 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) 25%
B) 56%
C) 75%
D) 40%
  • 14. When is it usually best to begin orthodontic treatment?
A) Only after all permanent teeth have erupted
B) Before a person reaches adulthood
C) During late adulthood
D) After the age of 30
  • 15. What was the main issue with implementing the Pin and Tube appliance?
A) Lack of theoretical benefits
B) Incompatibility with modern techniques
C) Troublesome implementation in reality
D) Absence of any practical application
  • 16. What was the orientation of the slot in the original ribbon arch?
A) Horizontal
B) Diagonal
C) Vertical
D) Circular
  • 17. Which orthodontic appliance approach typically begins with round wires before transitioning to rectangular archwires?
A) Begg appliance
B) E-arch
C) Edgewise appliance
D) Tip-Edge system
  • 18. Which of Edward Angle's systems was based on a rigid framework and inter-maxillary elastics?
A) Edgewise system
B) E-arch system
C) Ribbon arch system
D) Pin and tube appliance
  • 19. Who is known as the 'father of modern orthodontics'?
A) Norman Kingsley
B) Edward Angle
C) Charles Tweed
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 18-slot appliance has more precise features than the 22-slot.
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 22-slot appliance is considered obsolete.
  • 22. What were the optimal dimensions for the Edgewise appliance?
A) 22 × 28 mils
B) 16 × 20 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) Every ten years
C) Annually
D) Every five years
  • 24. In which decade was orthodontics recognized as a specialty by the American Dental Association?
A) 1980s
B) 2000s
C) 1920s
D) 1950s
  • 25. Which therapy is NOT mentioned as a method to reduce pain during orthodontic treatment?
A) Vibratory devices
B) Cognitive behavioral therapy
C) Low-level laser therapy (LLLT)
D) Acupuncture
  • 26. Who developed different brackets for each tooth in the 1980s?
A) Inventor of Lewis brackets
B) L.F. Andrews
C) Edward Angle
D) Creator of Lang brackets
  • 27. How long is the post-graduation orthodontic training in Bangladesh?
A) One year
B) Six months
C) Three years
D) Two years
  • 28. Which type of retainer is made from clear plastic and custom-fitted for the patient's mouth?
A) Removable retainer
B) Fixed retainer
C) Hawley retainer
D) Labial brace
  • 29. Which appliance emerged in the early 21st century allowing for precise control with rectangular archwires?
A) E-arch
B) Begg appliance
C) Pin and tube appliance
D) Tip-Edge system
  • 30. In what year was the Edgewise appliance first introduced?
A) 1915
B) 1940
C) 1935
D) 1928
  • 31. Which country is mentioned as having a specific system for training and registering orthodontic specialists?
A) Canada
B) Japan
C) Brazil
D) Australia
  • 32. What is the duration of the Orthodontic Specialty Training Registrar program in the UK?
A) Four years
B) Two years
C) Three years
D) Five years
  • 33. How many years of post-doctoral specialty training does the Canadian Dental Association expect orthodontists to complete?
A) One year
B) At least two years
C) Three years
D) Four 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) A Bachelor's degree
C) Higher-level training as a post-CCST trainee
D) No additional training
  • 35. What did Raymond Begg modify in the ribbon arch appliance?
A) He used two 10-mil steel archwires
B) He added bands on first molars with heavy lingual wires
C) He incorporated rectangular slots for crown tipping
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) Two 10-mil steel archwires
B) Large-diameter stainless steel wires
C) Small-diameter steel archwires.
D) High-strength round stainless steel wire
  • 37. What type of orthodontic appliance is made from a combination of plastic and metal?
A) Hawley retainer
B) Fixed retainer
C) Vivera Retainer
D) Essix Retainer
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