Year4DD/Orthodontic I/Prof.Mey Phoung/

A visual representation of orthodontics, featuring braces, dental tools, and a human jaw model showcasing various orthodontic conditions, in a clean and educational style.

Orthodontic Knowledge Assessment

Test your understanding of orthodontic principles with this comprehensive quiz designed for dental students and professionals. Covering vital topics about treatments and growth patterns, this quiz will challenge your knowledge and enhance your learning.

Key Features:

Multiple-choice questions
Focus on orthodontic treatments and dental development
Ideal for students and practitioners alike

50 Questions12 MinutesCreated by LearningDentist347

151. What treatment options when permanent lateral incisors are missing ?

152. Premature loss of deciduous teeth, when the C and D in unilateral loss cause ?

153. Premature loss of deciduous teeth, when the C and D in bilateral loss cause ?

The first permanent molars and the E’s to drift forwards

The first permanent molars and the E’s are rotated

The first permanent molars and the E’s are tilting

All are related

All unrelated

154. Premature loss of deciduous teeth, when the E is extracted before 6 erupts ?

The 6 will erupts more towards the mesial entering the premolar areas

Loss of space in the arch for the premolar erupts

Midline shift to the extraction side

All are related

All unrelated

155. Premature loss of deciduous teeth, when the E is extracted after 6 has erupted ?

156. The early loss of deciduous teeth would cause ?

157. Treatment of early loss of deciduous teeth, balancing extraction is needed if ?

158. Treatment of early loss of deciduous teeth, space maintainer is can be used if ?

159. Examination and Diagnosis in family and social history related to ?

162. The inclination of mandibular plane to the true horizontal or Franfort plane should be note ?

A steep mandibular plane angle correlates with long anterior face height

Anterior open bite malocclusion

A flat mandibular plane angle correlates with short anterior face height

Deep bite malocclusion

All are related

163. The line joining the tip of the nose to the chin was called a Ricketts E- Line or Aesthetic Line in Normative value for the Chinese Norm is ?

164. The ideally of the lip line at rest position the lower lip cover between?

� or ½ of the labial surface of the upper central incisor

¾ of the labial surface of the upper central incisor

� of the labial surface of the upper central incisor

All unrelated

165. Check the soft tissue in clinical examination in extra-oral of the lip was found ?

166. Clinical examination of intra-oral in the labial segment was checked and found ?

167. What we can see the overbite after intra-oral examination ?

168. The amount of anchorage required depend on the factor below?

The number of teeth to be move

The distance of teeth need to be move

Force applied

Root surface areas (RSA) of the teeth used for anchorage

All are related

169. Which one the following types of anchorage for orthodontic treatment ?

170. How to minimize anchorage loss for the tooth movement ?

171. The factors determining of the anchorage value ?

172. Frankfort Horizontal is a reference plane constructed by joining which of the following landmarks ?

173. The FMPA Angle was recognized and constructed by ?

174. The Molar relationship class II was known as the mesio-buccal cusp of the upper first permanent molar occlude to the lower first permanent molar at ?

176. The last primary tooth to be replaced by a permanent tooth is usually the ?

178. A child at 5-6 years with molar class II, later stage the first molar become class I. The causes of the leeway space in ?

179. The malocclusion cause by thumb sucking

181. The buccal canine retractors are used when The canines are buccally erupted in ?

182. The mandibular plane is constructed by joining which of the following landmarks ?

183. The Normative values for A-P Jaw relationship in SNA angle for the Chinese Norm is ?

184. The measurement in dental analysis of inclination of the upper central incisors to ?

190. The space analysis of Tanaka and Johnston prediction value based on in mixed dentition when the ?

191. What method that can effect to the overbite reduction when patient wear removable appliance ?

192. On patient compliance, patient should wear functional appliance regularly at least ?

193. The action lower block of the functional appliance (Class II twin block )tendency to ?

194. The definition of incisor relationship class II , the lower incisors edges occlude ?

To the cingulum plateau of the upper incisors

Posteriorly of the cingulum plateau of the upper incisors

Anteriorly of the cingulum plateau of the upper incisors

Edge to edge to the upper central incisors

Unrelated

195. The management of the median diastema when the patient has a problem with the teeth missing of upper lateral incisors ?

196. A patient who has class II division 1 malocclusion and the upper incisors are proclined with increase overjet 6 mm , upper and lower arches are well alignment. How many space requirement for overjet reduction ?

197. A child at 5-6 years with molar class II, later stage the first molar become class I. The causes of the skeletal growth ?

Maxilla growth is longer than the mandible

Mandible growth is longer than the maxilla

Maxilla and mandible growth at the same duration

Mandible growth sometimes longer, sometimes shorter

Skeletal growth change by functional appliance

198. The most frequently used of radiographic in orthodontic ?

200. The type of retentive component is Z spring/ double helical spring, what’s function when apply the force to anterior teeth ?

To move premolar or canine buccally

To move teeth in the dental arch mesially or distally

To procline one or a group of anterior teeth

To upright premolar or canine in the arch

All are related

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Year4DD/Orthodontic I/Prof.Mey Phoung/

Orthodontic Knowledge Assessment

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