LDEK questions: Orthodontics
255 questions in Orthodontics. Open a question to see the answer options and a hint.
- Indicate the false statement concerning the prophylaxis of finger sucking: Question 1
- The first physiological increase in the vertical occlusal dimension occurs as a consequence of: Question 3
- When does atrophy of the pharyngeal tonsil take place in children? Question 4
- What is the name of a unique feature of wires made of nickel-titanium alloys consisting in the fact that these arches at low temperatures can be freely formed and after… Question 5
- Indicate the true statements concerning the headcap with chin cap: Question 6
- Indicate the true statements concerning the tongue rest position in the mouth: Question 7
- Indicate the true statement concerning orthodontic brackets: Question 8
- Phase 2 of orthodontic treatment include: Question 9
- The optimal strength for inclining larger teeth is: Question 10
- Ectopia is defined as: Question 11
- The description ”lip and palate total cleft (until the incisive foramen) bilateral” applies to the classification: Question 12
- The stage of bone remodeling, in which the elimination of vitreous masses and the resorption of the alveolar bone in the compression zone occur, is called: Question 13
- Indicate the true statements concerning Andrew’s keys of normal occlusion: Question 14
- How much time does the stabilization of elastic fibers in periodontium take after the completion of the active phase of orthodontic treatment? Question 15
- Nickel-titanium alloy: Question 16
- The correct function of stomatognathic muscles influences: Question 17
- At which stage of the child's life should solid food be introduced in order to secure a proper development of the stomatognathic system? Question 18
- The mesial position of the canine in relation to the line connecting the distal point of the incisive papilla and perpendicular to the palatal line of the palatal… Question 19
- The sucking reflex is a physiological activity at birth, but it may lead to malocclusion if it is retained too long. The sucking reflex should normally disappear by: Question 20
- The junction between the two lateral halves of the mandible is fused by: Question 21
- Which of the following concerning ectodermal dysplasia are true? Question 22
- Indicate the true statement concerning the characteristics of stainless steel archwires: Question 23
- Which craniofacial syndrome are the following symptoms characteristic of: • impeded development of TMJ, maxilla and zygomatic bone, • impeded development of mandibular… Question 24
- Indicate the effect caused by Herbst appliance: Question 25
- Indicate the true statements regarding beta titanium archwires: Question 26
- At which stage of the child's life is the treatment with a face mask the most beneficial? Question 27
- High rigidity, low elasticity and low wire-bracket friction are the features of: Question 28
- What is the minimal force per site recommended in the case of orthopedic movements using a Headgear appliance? Question 29
- What is the value of the intercanine distance at the age of over 11-13 years? Question 30
- According to Broadbent the growth of the face is: Question 31
- Which of the following features of the stainless steel wire and beta-titanium wire is common for both alloys? Question 32
- Which malocclusion cannot be treated using a lower acrylic inclined bite plane? Question 33
- The period until the 7th week of fetal life is crucial for the correct fusion of: Question 34
- Chose the false sentence describing impressions taken in infants with a cleft palate: Question 35
- Which statements describe the correct maxillary bone growth (primary displacement)? Question 36
- Indicate the true statements concerning distocclusions: Question 37
- Which of the following orthodontic alloys has the lowest flexibility? Question 38
- A 7-year-old patient comes to the clinic. Parents are concerned about diastema between upper central incisors. During examination you see; diastema, erupted teeth16,11… Question 39
- A 14-year-old child came to the doctor's office. During examination the following were diagnosed: mixed dentition - erupted permanent teeth apart from 13 and the… Question 40
- The morphological posterior position of the mandible is characterized by: Question 41
- Prolonged treatment with the chin cup appliance may lead to: Question 42
- Which of the following is an indication for the recommendation of Skaloud exercise for a child? Question 43
- Which malocclusion occurs most frequently in Down syndrome? Question 44
- Which type of plaster is used for embedding models in articulators and preparing bases of models? Question 45
- Which features are characteristic of steel archwires, especially stainless steel (SS), used in orthodontics? Question 46
- Superelastic nickel titanium wires should not be used: Question 47
- Which malocclusion has the following description: 2nd class on canines, 1st class of Angle, increased face angle F (according to Schwarz), SNB angle in the norm… Question 48
- In children with Pierre-Robin syndrome, in order to enable the correct growth of the stomatognathic system, one should apply: Question 49
- Disorders, in which congenital macroglossia may occur, include: Question 50
- Which of the following statements correctly describes stage D in the development of single root permanent teeth by Demirijan? Question 51