LDEK questions: Orthodontics — page 3

255 questions in Orthodontics. Open a question to see the answer options and a hint.

101. Andrews’ keys to normal occlusion do not include: Question 102
102. Andrew's Keys of Occlusion do not include: Question 103
103. Indicate the true statements concerning the delayed eruption of permanent teeth: Question 104
104. Indicate the true statement regarding the clinical application of various functional regulators by Fränkl: Question 105
105. The center of gravity for single root teeth is around: Question 106
106. Which of the following muscles does not originate from the first branchial arch? Question 107
107. The impaction of which permanent tooth is most often observed after a premature loss of deciduous teeth as a result of spontaneous migration of teeth and insufficient… Question 108
108. The following indicators can be used to analyze the necessary space needed in support zones: Question 109
109. When the lip profile is correct the lip step according to Korkhaus should be: Question 110
110. When during fetal development does the primary palate cleft occur? Question 111
111. Indicate the true statement concerning the reinclusion: Question 112
112. Indicate the true statements concerning partial deep bite: Question 113
113. Pseudo Angle's class: Question 114
114. Indicate the true statements about the active Schwartz plate: Question 115
115. The height of the labial arch in the removable apparatus depends on the treatment plan. The closer the labial arch runs to the incisal edge, the larger: Question 116
116. Which factors support tooth extraction during orthodontic treatment? Question 117
117. Which index should be used for the assessment of the width of the dental arch? Question 118
118. Find proper characteristics concerning the physiological lip position which are assessed during extraoral examination: Question 119
119. Dystopic tooth is: Question 120
120. The change in the inclination of the bracket slot in the mesio-distal direction in the straight wire technique enabled the introduction of: Question 121
121. Fixed functional apparatuses do not include: Question 122
122. Partial open bite can result from: Question 123
123. The screw that enables the jaw to expand in three directions is: Question 124
124. The free mouth opening range in adolescents and adults, measured from the edges of the upper incisors to the lower incisors, in the midline is: Question 125
125. Indicate the types of gypsum used in orthodontics: Question 126
126. In Edgewise technique 5 phases of treatment can be distinguished according to Hasund: Question 127
127. Which of the following describing postnatal masticatory system development is true? Question 128
128. The dorsal position of child's head during sleep may lead to: Question 129
129. Indicate the true statements concerning the temporary increase in tooth mobility during orthodontic treatment: Question 130
130. Which of the following functional appliances is used for the treatment of an open bite? Question 131
131. The Hass appliance is used to: Question 132
132. The center of resistance in multirooted teeth is situated: Question 133
133. Indicate the false statement concerning the straight wire technique: Question 134
134. Tonsillar hypertrophy can lead to the development of: Question 135
135. A protruded lower lip and chin, shallow labial-mental fold are the features of: Question 136
136. The applications of Schöherr’s vestibular plate include muscular exercises and: Question 137
137. Pseudo class II malocclusion has: Question 138
138. Which of the follwing is the multisectioned screw used in lower plates in the cases of incisor crowding when the tooth protrusion can be achieved? Question 139
139. The occlusal planes covering posterior upper teeth in Schwartz plate are utilized in the treatment of: Question 140
140. Which sentence describes WITS measurement (according to Jacobson)? Question 141
141. Tonsil hypertrophy may result in: Question 142
142. The single, full vestibular screen is used for: Question 143
143. Which maxillo-occlusal disturbances are taken into consideration in relation to the horizontal plane? Question 144
144. The individual acrylic vestibular plate by Hotz and Nord is used primarily in the treatment of: Question 145
145. Which malocclusion is the most frequent? Question 146
146. Schwarz provided data for the assessment of force values used in orthodontic treatment by introducing four stages of biological force application. The first degree of… Question 147
147. What kind of appliance is Schwartz plate, active labial arch and Adam’s clasp on the first molars? Question 148
148. Indicate the true statement concerning Tonn’s Index: Question 149
149. In the transversal symmetry analysis regarding the upper dental arch the palatal suture line is used. This line is coincident with the sagittal midline line and is… Question 150
150. The space maintainer is: Question 151

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