Orthodontic I Preparation (Pr. Mom Sovannrithy)

1) Types of active components ?

2) Which plane is paralleled to Horizontal plane ?

3) A 11 years old girl who has class I malocclusion and skeletal I base , the upper and lower teeth alignment associated with unilateral posterior crossbite and mandibular displacement. How can treat this patient ?

4) The Norms value of the Maxillary Mandibular plane angle (MMPA) ?

5) Screw expansion should be turned for a week ?

6) Treatment of early loss of deciduous teeth, balancing extraction is needed if ?

7) The factors determining of the anchorage value ?

8) Anchorage is the resistance to reactive forces generated by ?

9) Which options to reduce relapse of the transition from functional to fixed ?

10) Dental analysis, how can lower central incisor compares to ?

11) Which of the following conditions is usually present in a Class II, Division 2 malocclusion?

12) The most important action of a functional appliance was ?

13) What the anchorage for removable appliance ?

14) Mesiodens :

15) Adams claps on the first molar for retention were used the wire in diameter ?

16) What factors that effect to the choice of the teeth for extraction ?

17) How can to expose canine when it’s impacted?

18) The high risk of upper central incisor trauma when ?

19) The deepest point on the concavity of the mandibular profile between the point of chin and the alveolar crest is ?

20) The patient in deep bite case who wear functional appliance the bite plane was used as ?

21) What’s happened when loss of the lower first permanent molar ?

22) The active components in removable appliance ?

23) Normal overbite is:

24) what is the advantage of functional appliance ?

25) When the first permanent molar was extracted, what’s happened in this area ?

26) What function of the baseplate for removable appliance ?

27) The conjunction of the fronto-nasal suture ?

28) Delayed for extraction of deciduous teeth may lead to ?

29) Overbite normal when measure is ?

30) The normative values of SNA angle for the A-P Jaw relationship of the Caucasian Norm: ?

31) Flat occlusal plan:

32) The measurement in dental analysis of inclination of the upper central incisors to ?

33) The optimum force ( 35g – 60g ) to apply for teeth movement ( profit-2000 ) ?

34) The ideally of the lip line at rest position the lower lip cover between?

35) What is the right answer for teeth movement in fixed appliance ?

36) Lower anterior facial height ratio ( % ) was calculated by ?

37) Lower inclined plane :

38) Root formation is normally completed after eruption in year:

39) Which size of wire for T spring ?

40) The various types of retentive components ?

41) Which one is the correct answer of the permanent canine crown width ?

42) What is the meaning of Cephalometric ?

43) Which appliance was used as functional appliance with the skeletal class II discrepancy ?

44) Leeway space is:

45) The deepest point on the maxillary profile between anterior nasal spine and the alveolar crest is ?

46) Dental analysis, how can upper central incisor compares to ?

47) The points in the maxillary landmark have known as ?

48) What should you do when the second premolars were absent ?

49) What cephalometric planes tracing were found ?

50) The Class II div 2 functional appliance, Z spring was used in order to ?

51) A 12 years old boy who has class III incisor relationship with the bite edge to edge associated skeletal III base by ANB= 0,5 degree. How could manage this patient ?

52) What cause of dilacerations during eruption of permanent central incisor ?

53) What’s function of labial bow ( Active ) when apply the force to anterior teeth ?

54) What’s happened when the functional appliance was finished ?

55) The lowermost point on the mandibular symphysis ?

56) The spacing distal to the lower deciduous canines and mesial to the upper deciduous canine the so-called ?

57) Functional appliance can help accelerate growth when ?

58) The most important of incline bite plane when the functional appliance was finished ?

59) What active component that can move molar distally ?

60) The use of lateral Cephalometric radiograph in diagnosis for focusing on the skeletal pattern in dimension view ?

61) When need to extract the 1st permanent molars with poor prognosis before orthodontic treatment?

62) 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 ?

63) The normative values of SNB angle for the A-P Jaw relationship of the Chinese Norm: ?

64) Treatment of early loss of deciduous teeth, space maintainer is can be used if ?

65) The Mandibular plane ( Mn ) was represented by a line drawn through from ?

66) What function of the retentive components ?

67) What is the flush terminal plane ?

68) Types of active components ?

69) The last primary tooth to be replaced by a permanent tooth is usually the ?

70) Modules were used in fixed appliances in order to hold ?

71) What is the optimum force for intrusion ( profit-2000 ) ?

72) Why need the precise way to take impression for orthodontic treatment patient ?

73) Why the model base were kept as a records for the patient in orthodontic treatment ?

74) Tooth movement for removable appliance need ?

75) What causes of the easy to relapse of overbite reduction when orthodontic treatment was finished ?

76) Anterior teeth are most likely to be fractured in children with which of the following mixed dentition malocclusions?

77) The method to measure the arch we can divided it into ?

78) On patient compliance, patient should wear functional appliance regularly at least ?

79) Which component should be used in reduced overbite cases in functional appliance ?

80) The main reasons for doing orthodontic treatment:

81) The removable appliance that allow eruption of lower posterior teeth ?

82) Class II division 1 incisor relationship mean that ?

83) The Norms of the Inter-incisal angle ( U1-L1) is ?

84) The maxillary landmark were known as:?

85) What we can see the overbite after intra-oral examination ?

86) Upper and lower arches were checked in intra-oral examination ?

87) 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 ?

88) How can reduce the overjet when use the removable appliance ?

89) Functional occlusal plane ( FOP ) was represented by a line that passes through the occlusion of the ?

90) Two treatment options in missing #12 :

91) The most frequently used of cephalometric in orthodontic ?

92) Buccal canine retractor was indicated when it’s position ?

93) Which Cephalometric radiograph is most frequently used in Orthodontic ?

94) Why need posterior bite plane in removable appliance ?

95) The most common cause of median diastema in the ugly duckling stage with patient who has ?

96) The early loss of deciduous teeth would cause ?

97) Flush terminal plane is at:

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

99) The use of Cephalometric radiograph in Diagnosis of ?

100) What function for labial bow ?

101) Class III Skeletal base mean ?

102) When should the patient take off the functional appliance ?

103) Usually reduced face height is associated with ?

104) Anomalies in position of teeth is:

105) Effective of tongue thrust :

106) what’s ideal patient was Indicated for functional appliance ?

107) How many types of twin block for functional appliance?

108) The use of Cephalometric radiograph for focusing on the skeletal pattern in dimension view ?

109) What are the following active components in removable appliance that effect to correct distally inclined canine ?

110) The skeletal discrepancy of Class III malocclusion when ?

111) Which teeth apexes are suitable for removable appliance ?

112) The Norms of the lower central incisor to APog line ( L1-APog ) ?

113) How many types of Frankel Functional Regulator?

114) The best time to correct a upper central incisor crossbite is ?

115) The component to change the soft tissue balance in functional appliance is ?

116) Clinical examination of intra-oral in the labial segment was checked and found ?

117) The retentive component of the URA ?

118) Which size of wire for Z spring ?

119) The most anterior point of the bony chin ?

120) Neural growth :

121) The normative values of ANB angle for the A-P Jaw relationship of the Caucasion Norm: ?

122) The most common cause of the teeth missing ?

123) Which size of wire for palatal finger spring ?

124) The inclination of mandibular plane to the true horizontal or Franfort plane should be note ?

125) What are active components for removable appliance ?

126) The component that can be used to help upper arch expansion during functional appliance related to the soft tissue change ?

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

128) Function of active component to apply force to the teeth in order to move teeth known as ?

129) How can design and planed the teeth movement for removable appliance ?

130) The premature contact when the teeth bite by ?

131) The function of the upper inclined bite plane is ?

132) The lower anterior facial height is a line that is perpendicular to ?

133) How to minimize anchorage loss for the tooth movement ?

134) The patient compliance when wearing functional appliance, the ideally should be?

135) What treatment options when permanent lateral incisors are missing ?

136) The most posterior, inferior point on the angle of the mandible ?

137) Case selection for removable appliance when skeletal pattern as below ?

138) The inter-incisal angle was constructed by axis of ?

139) How can you know the patient in growing or stop growing ?

140) In the cranial base & cranium landmark there are the main five points as below: ?

141) The Norms value of the Frankfort Mandibular plane angle (FMPA) ?

142) Classification of malocclusion:

143) In cephalometric analysis of children with malocclusion, the angle ANB is frequently used. In patients with severe Class II malocclusion, this angle is ?

144) Which component that can help soft tissue balance between Lips/ cheeks and tongue is changed ?

145) For every 1 mm for posterior arch expansion can get approximately?

146) What are the components for functional appliance ?

147) Premature loss of deciduous teeth, when the C and D in unilateral loss cause ?

148) The components for removable appliance ?

149) A 12 years old boy with upper and lower teeth alignment in both arches who has class II incisor relationship associated with skeletal II base, what’s appliance should be indicated for this patient ?

150) How can measure the overjet when intra-oral examination check ?

151) What method that can effect to the overbite reduction when patient wear removable appliance ?

152) Midline coincidence mean ?

153) Which one the following types of anchorage for orthodontic treatment ?

154) Which degree of rotation in tooth movement when the URA is indicated ?

155) How can treat the incisors crossbite when patient is growing ?

156) The FMPA Angle was recognized and constructed by ?

157) 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 Caucasion Norm is ?

158) For patient compliance, patient should wear functional appliance regularly at least ?

159) ( overjet= 11 mm ) and the teeth in both arches are well aligned combined with skeletal II base by the normal maxilla when the mandible in retrusive, how can manage this patient ?

160) The location of the Basion ( Ba Point ) was known as ?

161) Excessive lower face height may be the cause of ?

162) Upper permanent central incisor erupt ?

163) How can creating space for teeth alignment ?

164) Which component that can help the eruption of teeth ?

165) Treatment of early loss of deciduous teeth, space maintainer can be used if ?

166) Contra- indication for removable appliance when ?

167) Early lost of the 1st permanent molars may lead to ?

168) Hawley retainer regime was placed after orthodontic treatment ?

169) What is the optimum force ( g ) for root uprighting ?

170) The based on Tanaka and John stone method was indicated when in ?

171) The mandibular landmark were known as below: ?

172) What should to do of the stage treatment when finish stage 1 ( functional appliance ) and start the stage 2 ( fixed appliance ) ?

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

174) Disadvantage of expansion screw ?

175) Frankfort Horizontal is a reference plane constructed by joining which of the following landmarks ?

176) Every millimeter of incisor overjet increase, the space are created in the dental arch ?

177) Normal occlusion is:

178) The space analysis of Tanaka and Johnston prediction value based on in mixed dentition when ?

179) The most inferior point on the marginal of the orbit ?

180) Occlusal development divided into:

181) Anomalies in position of teeth during eruption ?

182) High pull headgear was indicated in case of lower anterior facial height ?

183) Which active component that can retract upper incisors ?

184) Supernumerary teeth are give rise to:

185) Which case for removable appliance should be indicated when ?

186) The amount of anchorage required depend on the factor below?

187) During the pubertal growth spurt what appliance is the best used ?

188) Orthodontic treatment can improve:

189) The location of the Basion ( Ba Point ) was known as ?

190) Why the lower inclined bite plane was indicated ?

191) Robert retractor was used in removable appliance to ?