Orthodontic I Preparation (Pr. Mom Sovannrithy)

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

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

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

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

5) Leeway space is:

6) When the child was 6 to 8 years old what can you see the permanent teeth had erupted ?

7) The patient who has to need for fixed retainers after post- treatment of orthodontic when?

8) The a mount of crowding is classified as ?

9) Transposition of the teeth when ?

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

11) The buccal canine retractors are used when The canines are buccally erupted in ?

12) The early loss of deciduous teeth would cause ?

13) The retentive component of the URA ?

14) Lower inclined plane :

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

16) Class III incisor relationship mean that ?

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

18) Appliance for treatment is:

19) Tooth movement for removable appliance need ?

20) Neural growth :

21) Why need posterior bite plane in removable appliance ?

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

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

24) Midline coincidence mean ?

25) What active component that can move molar distally ?

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

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

28) Approximate space requirement to flatten a curve of spee when the curve is 5 mm or more than the space requirement is?

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

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

31) Approximate space requirement to flatten a cure of spee when the curve of spee is 5 mm or more ?

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

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

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

35) 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 ?

36) Which one is the correct answer of the permanent first premolar crown width ?

37) Flush terminal plane is at:

38) How can to calculate the space for teeth alignment when the arch and teeth tendency to crowding ?

39) Which teeth are often to choice to be extracted when space requirement is moderate or severe ?

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

41) What is the meaning of Cephalometric ?

42) The Norms of the upper permanent central incisor to Maxillary plane ?

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

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

45) The factor effect to the choice for teeth extraction when the space is required as follows ?

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

47) The soft tissue effect in functional appliance used ?

48) Hawley retainer regime was placed after orthodontic treatment ?

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

50) The premature contact when the teeth bite by ?

51) 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 ?

52) The Functional was defined as Removable or fixed appliance that ?

53) Space analysis requires a comparison between the amount of space available for the alignment of teeth and the amount of space required to align them properly, the method of space analysis when ?

54) Every millimeter of incisor overjet reduction requires the space in the dental arch ?

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

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

57) What are the components for functional appliance ?

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

59) The soft tissue effect when functional appliance was finished ?

60) What function for T spring ?

61) Which component that can allow differential eruption of teeth ?

62) The convexity of the face with profile view when the ?

63) what is the advantage of functional appliance ?

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

65) The anterior point of the fronto-nasal suture is ?

66) What diagnosis will be found when the lateral cephalometric tracing was finished ?

67) A 12 years old boy with class II incisors relationship when upper incisor are procline (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 ?

68) Disadvantage of expansion screw ?

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

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

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

72) What function for Buccal canine retractor ?

73) What cephalometric planes tracing were found ?

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

75) Screw expansion should be turned for a week ?

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

77) Class II division 1 incisor relationship mean that ?

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

79) The skeletal Class II was described when ?

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

81) The factor that effect to the choice for teeth extraction when the space is required as follows ?

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

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

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

85) What is the function for active components ?

86) The conjunction of the fronto-nasal suture ?

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

88) Class I incisor relationship mean that ?

89) Why need to wear removable appliance combined with fixed appliance in orthodontic treatment ?

90) The maxillary landmark were known as:?

91) The skeletal discrepancy of Class II malocclusion when ?

92) The concavity of the face with profile view when the ?

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

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

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

96) 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 ?

97) Anomalies in position of teeth during eruption ?

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

99) The most frequently used of radiographic in orthodontic ?

100) The various types of retentive components ?

101) The space available can be measured in each segment by using ?

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

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

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

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

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

107) What is the optimum force for tipping movement ( profit-2000 ) ?

108) The Lee way space of the upper arch is ?

109) The FMPA Angle was recognized and constructed by ?

110) Upper incisor inclination 140 degree mean that ?

111) Class II Skeletal base mean ?

112) Which component should be used in deep bite cases in functional appliance ?

113) Robert retractor was indicated with size of wire ?

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

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

116) Upper permanent lateral incisor erupt ?

117) The lowermost point on the mandibular symphysis ?

118) Check the soft tissue in clinical examination in extra-oral of the lip was found ?

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

120) Class III Skeletal base mean ?

121) The factors determining of the anchorage value ?

122) 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 ?

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

124) Supernumerary teeth are give rise to:

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

126) Lower permanent lateral incisor erupt ?

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

128) A line that drop perpendicular at the distal surface of Upper and lower E’s was known ?

129) The components for removable appliance ?

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

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

132) which option can be related to the Andrew six keys ?

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

134) Why the removable appliance was used in mixed with fixed appliance?

135) Which one is the right answer for the canine classification ?

136) Examination and Diagnosis in family and social history related to ?

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

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

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

140) How many types of growth rotation ?

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

142) The highest point on the bony external auditory meatus ?

143) Anodontia :

144) Mesiodens :

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

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

147) ( 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 ?

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

149) Which size of wire for T spring ?

150) 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 ?

151) The change in the proportion of head and face during growth of the maxilla ?

152) 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 ?

153) The mandibular landmark were known as below: ?

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

155) The prognosis for successful alignment of a palatally impacted upper canine :

156) When the upper second permanent molar make the extraction decision, what would we check ?

157) What a problem when permanent third molars are missing ?

158) Two treatment options in missing #12 :

159) What is the optimum force for bodily movement ( profit-2000 ) ?

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

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

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

163) The skeletal discrepancy of Class III malocclusion when ?

164) Canine impacted when the position in?

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

166) The type of movement usually produced by a removable appliance is ?

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

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

169) The conjunction of the fronto-nasal suture ?

170) Flat occlusal plan:

171) What function for Z spring ?

172) Total arch length minus total teeth width when the result is a positive value, it’s indicates ?

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

174) What is the optimum force for root uprighting ( profit-2000 ) ?

175) The upper anterior facial height is a line that is perpendicular to ?

176) What are active components for removable appliance ?

177) What the anchorage for removable appliance ?

178) Flush terminal plane :

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

180) The tooth moves in the dental arch in mesially or distally as ?

181) Orthodontic treatment options:

182) Which size of wire for palatal finger spring ?

183) The mandibular plane is constructed by joining which of the following landmarks ?

184) Which component that can helps control eruption of anterior teeth ?

185) The components for removable appliances ?

186) The factors that causes of overjet increase ?

187) The most common cause of the teeth missing ?

188) Ectopic position :

189) Which size of wire for Z spring ?

190) Normal overbite is:

191) What types of springs for removable appliances ?