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Participants must answer at least 12 of 15 questions correctly (80%) to earn CE credit.

AGD - Self-Instruction Exercise No. 401 - Appliance Therapy
Anatomy of an occlusal splint

Self-Instruction Exercise No. 401
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Exercise No. 401
Subject Code: 185
Appliance Therapy

The 15 questions for this exercise are based on the article Anatomy of an occlusal splint on pages 52-59. This exercise was developed by Riki Gottlieb, DMD, MS, FAGD, in association with the General Dentistry Self-Instruction committee.

Reading the article and successfully completing this exercise will enable you to:

  • review the general properties of occlusal splints;
  • understand the role of oral appliances in treating temporomandibular disorders (TMDs); and
  • evaluate the use of the Maxillary (Mandibular) Anterior Passive Appliance (MAPA) for TMD treatment.

Answers for this exercise must be received by February 28, 2018.

  1. Occlusal splints are generally divided into ____ categories.

    A. 2
    B. 3
    C. 4
    D. 5

  2. All of the following are directive occlusal splints except one. Which is the exception?

    A. Witzig repositioning appliance
    B. Thornton Adjustable Positioner
    C. Comfort Bite Splint
    D. Gelb appliance

  3. Dentition touch time in 24 hours is approximately ____ minutes.

    A. 80
    B. 60
    C. 40
    D. 20

  4. It takes up to _____ days without opposing tooth contact for supraeruption to begin.

    A. 8
    B. 10
    C. 12
    D. 14

  5. Swallowing occurs _____ times while an individual is sleeping.

    A. 5-10
    B. 15-20
    C. 25-30
    D. 35-40

  6. Muscle spindle fibers and _______ tendon organs establish the normal resting length of muscles.

    A. Calvin
    B. Golgi
    C. Henle
    D. Krebs

  7. Full-coverage flat stabilization occlusal splints are loaded with greater force around the __________.

    A. incisors
    B. canines
    C. premolars
    D. molars

  8. A hard force on a single opposing molar can easily intrude it. Square jaw angles place forces evenly compared to the average jaw angle.

    A. Both statements are true.
    B. The first statement is true; the second is false.
    C. The first statement is false; the second is true.
    D. Both statements are false.

  9. An NTI oral appliance is a ________.

    A. neuronal triggering inducer
    B. neuronal triggering inhibitor
    C. nociceptive trigeminal inducer
    D. nociceptive trigeminal inhibitor

  10. All of the following are disadvantages of the NTI oral appliance except one. Which is the exception?

    A. It is difficult to vertically load labially tilted incisors.
    B. It is difficult to vertically load lingually tilted incisors.
    C. Posterior loading causes intrusion of incisors.
    D. Incisal clip can potentially intrude the premaxillary bone.

  11. Bruxism and eating share the same _________.

    A. forces
    B. muscles
    C. brain activity
    D. neural pathway

  12. The disoccluding elements of the MAPA are located on the __________.

    A. maxillary molars
    B. mandibular incisors
    C. maxillary canines
    D. mandibular premolars

  13. The MAPA should initially be worn full time, except to eat and clean, for ____ weeks.

    A. 2-4
    B. 6-8
    C. 10-12
    D. 14-16

  14. All of the following are advantages of the MAPA except one. Which is the exception?

    A. It is comfortable to wear.
    B. It does not impede speech.
    C. It fits within the interocclusal rest space.
    D. It actively engages occlusion.

  15. To establish a centric jaw relationship, TMD patients have to place the tip of their tongue on their __________.

    A. lower lip
    B. soft palate
    C. lingual frenulum
    D. incisive foramen


Please respond to the statements below, using the following scale:
1 Poor; 2 Below average; 3 Average; 4 Above average; 5 Excellent

Practicality of the content 1 2 3 4 5
Benefit to your clinical practice 1 2 3 4 5
Quality of illustrations 1 2 3 4 5
Clarity of objectives 1 2 3 4 5
Clarity of exercise questions 1 2 3 4 5
Relevance of exercise questions 1 2 3 4 5
Did this exercise achieve its objectives? Yes No
Did this article present new information? Yes No
How much time did it take you to complete this exercise? mins