1) What are the success rates of pulpectomy if carried out properly?

2) Which one is the less toxic?

3) Which type of post should be used when more than ½ coronal tooth structure is lost (reduced wall height)?

4) Factors to consider whether to retreat or not include all of the following except one, which is:

5) How to improve the tissue-dissolving capacity of NaOCl?

6) Fibers in the pulp tissue are mainly:

7) The caries process is generally:

8) The infection of root canal system is related to:

9) You started RCT on tooth #46 two days ago which was asymptomatic. Patient was given another appointment to finish the RCT. The patient came back to your clinic complaining of severe pain when chewing on the same tooth. Clinical examination revealed pain on percussion only. Radiograph shows normal apical area. The cause of the pain might be:

10) What is the restoration of choice for a large class II MOD cavity in a posterior root-treated tooth with limited functional and lateral stresses?

11) Calcium hydroxide sealers:

12) Two main types of vital pulp therapy are:?

13) បរុសម្នាក់មកគ្លីនិករបស់ខ្ញុំទាំងព្រឹកព្រលឹម ហើយត្អួញត្អែរថាគាត់ឈឺធ្មេញថ្គាមក្រោម លេខ#36 ឈឺចាប់ ជាមួយ ទឹកក្តៅ។អ្នកជំងឺនេះមានរោគវិនិច្ឆ័យ:

14) What shape is the access cavity for upper and lower molars?

15) What is the main cause of apical periodontitis?

16) Effeciency of irrigation is affected by:

17) The opening of the distal canal(s) in molars is usually directly under

18) If the canals are weeping, what shall we do?

19) What shape is the access cavity for upper and lower molars?:

20) What is an example of non-end cutting bur used in finishing the access cavity?

21) In which condition will the repair of the pulp be likely resulting as completed regeneration?

22) The final restoration of an anterior tooth with largely intact crown or moderately class 3 or 4, but with discoloration resistant to bleaching should be:

23) What may not be one of the ways to manage the bleeding during endodontic surgery?

24) Which cells serve as reserve cells in the pulp tissue?

25) The most reliable test to diagnosis the condition of the pulp is:

26) If severe endodontic flare-ups occur despite the complete instrumentation in an irreversible pulpitis case, what should we usually do?

27) What is the restoration of choice for a large class II MO/OD cavity in a posterior root-treated tooth with limited functional and lateral stresses?

28) An 8 years old boy presents with class III fracture of tooth 11, with appeared an hour ago, the apex is not closed. Your Treatment should be:

29) Which of the following types of traumatic injuries will not usually result in infectious inflammation of the pulp?

30) In the peripheral dentin, the number of dentinal tubules is about:

31) Asymptomatic apical periodontitis can be probably diagnosed by:

32) A mechanical pulp exposure of small diameter ( Less than 1 mmin diameter ) in mandibular first molar is treat by:

33) Why shouldn’t a tooth with necrotic pulp and some swelling be left open between appointments?

34) Which is not one of the chemicals used to control the bleeding during endodontic surgery?

35) Which of the following statements is true?

36) Which one is not a usual characteristic of periapical lesions of pulpal origin as seen radiographically?

37) Dental history taking:

38) Which material cannot be used as a base for composite restoration?

39) A major determinant for the desired final apical diameter preparation is:

40) Single appointment endodontic therapy is contraindicated in:

41) The pulpectomy immediate are:

42) The properties of chlorhexidine are as follows except one:

43) Fractured instruments may be avoided by:

44) Which motion is best used to negotiate the root canal with small files to length?

45) The best pulp capping is

46) Pain on percussion before endodontic treatment indicates

47) Dental pulp is devided in :

48) According to “apical box preparation” technique, the apical enlargement of upper first premolar with one canal should be:

49) Permanent teeth with three roots are :

50) The innervation of the pulp tissue consists of:

51) A patient presents wet a draining sinus tract in labial vestibule of a maxillary central incisor. To confirm your diagnosis. About the origin of pathose you should:

52) If an instrument is broken at the apex after the completion of root canal preparation of a vital case, how would the prognosis be like?

53) How long should we apply ferric sulfate in pulpotomy of primary teeth?

54) The Management of broken instruments by surgical approach includes all of the following methods except one:

55) Filing motion is best used with:

56) The most comment cause of Acute pulpitis is:

57) Which syringe is recommended for irrigation?

58) A patient attends your clinic and has Diabetes, you find that he is in need of endodontic:

59) What is the objective of coronal access?

60) Which of the following tests is used to detect the periapical status?

61) Ca(OH)2 has all the following properties except one which is:

62) Determining the working length after:

63) In lateral condensation, the master cone is fitted to:?

64) When EDTA is mixed with NaOCl, what will happen?

65) Which of the following tests is used to detect pulp vitality?

66) Which irrigant may be most effective against E. faecali?

67) In endodontics, EDTA is normally used at which concentration?

68) If the infection is life-threatening, which antibiotic should be used?

69) How many lower incisors have two canals?:

70) Which of the following statements is correct?

71) Among the following dressing materials for pulpotomy in primary teeth, which seems to be the material of choice at present?

72) Which of the following is not one of the protective mechanisms of the pulp tissue to non-destructive stimuli?

73) What is the main risk associated with internal bleaching?

74) The pulpotomy is the surgical removal of:

75) Using a conservative approach, what is the restoration of choice for a small class II MO/OD cavity in a posterior root-treated tooth with limited functional and lateral stresses?

76) In which of the following would you consider surgical retreatment:

77) According to “apical box preparation” technique, the apical enlargement of upper lateral incisor should be:

78) The technique of placing Gutta-Percha cones against the root canal walls providing space for additional Gutta Percha is termed:

79) At the inner surface of the dentin, the number of dentinal tubules is:

80) Which of the following is true regarding maxillary canines:

81) How does the dentin change structurally after endodontic treatment?

82) Which material is not used to correct rubber dam leakage?

83) Exposed dentin is not caused by:

84) Which condition is best managed by a specialist?

85) The main role of mechanical instrumentation is to:?

86) Which type of instruments should be used with balanced force motion?

87) Which of the following conditions cannot be treated surgically using triangular flap?

88) A patient presents with a periapical abscess and a draining sinus on tooth 12, how would you manage the sinus?

89) Which of the following factors does not affect the outcome of vital pulp therapy?

90) In molars, post is:

91) In case of pulp necrosis without swelling and limited time, the emergency treatment should be:

92) Which material is not used as a retrograde filling material?

93) Which test directly stimulates the dentin?

94) The ideal timing of final restoration upon completion of endodontic treatmemt is:

95) How many thicknesses of rubber dam are available?

96) Which of the following may not be found in dentinal tubules?

97) The first step in removing the cast post and core should be:

98) What is the most common reason to endodontically treat primary teeth?

99) if you choose to temporarily seal the access cavity of tooth with caviton, how thick should it be?:

100) Endodontic treatment is contraindicated when:

101) The incidence of endodontic flare-ups range from:

102) A tooth that has been injured, a color change to gray after a few weeks is usually indicates:

103) Cementum cannot be resorbed by:

104) Using a protective approach, what is the restoration of choice for a large class I cavity in a posterior root-treated tooth with limited functional and lateral stresses?

105) According to “apical box preparation” technique, the apical enlargement of upper second premolar with two canals should be:

106) How to incise for drainage?

107) A working length has a file inserted 17mm. It is 2.5 short of the anatomical apex. What is the true working length?:

108) The true working length is confirmed with a radiograph using a:

109) Which solvent can be used to soften hard-setting cements in a retreatment case?

110) Which one is not another name of tertiary dentin?

111) Biologically active sealer which promote peri- apical healing contain:

112) Lower permenant premolars:

113) ជាទូទៅ maxillary canine has

114) Patients scheduled for retreatment:

115) How does the pulp tissue initially react to irritants?

116) Single visit root canal treatment is indicated in case of:

117) Which of the following is defined as a treatment, which aims to preserve and maintain the pulp tissue that has been compromised but not destroyed, by caries, trauma or restorative procedures, in a healthy state?

118) ភាគច្រើន Mandibular second Premolar មាន

119) When should we first see the patient again after an endodontic surgery?

120) Canal orifices are identified with:

121) Which is the amount of anesthetic solution injected in intrapulpal injection?

122) Which statement is not true about true apical cysts?

123) Pulpal anesthesia fails more commonly in which region?

124) According to “apical box preparation” technique, the apical enlargement of lower canine should be:

125) When the patient is symptomatic and the root canal is wet

126) The patient reports spontaneous pain and responses with extreme pain to cold test. Periapical tests give a normal response, and the radiograph also shows normal periapical structure. The pulpal diagnosis of this case would be:

127) Which medical condition may not mimic dental pathosis?

128) If the patient is allergic to penicillin, which antibiotic should be used as an alternative?

129) Disparities between the radiographic apex and the apical foramen, and also a funnel-shaped opening to the foramen are due to:

130) A fourth canal is usually found in:

131) Which material should be used as a semi-permanent restoration in endodontic cases with guarded prognosis?

132) According to “apical box preparation” technique, the apical enlargement of lower incisors with 2 canals should be:

133) Which of the following statements is not true?

134) How many types do pulp stone have?

135) How can ledges be by bypassed?

136) In case of NaOCl allergy,

137) If lateral condensation is to be used as the method of obturation, the apical preparation should be prepared to which size?

138) Regardless of the swelling and if the time and condition permit, the emergency treatment of pulp necrosis case should be:

139) Endodontic radiograph in treatment is:

140) A 10-year-old child presents with mild discomfort in teeth #21 and #22. The teeth were traumatized the day before in a fall from a motorcycle. Clinical examination reveals both teeth are tender to percussion and the crowns are intact. Cold test using Endoice indicated that the teeth#21and#22 are not responsive. Treatment plan for such case is:

141) Which of the following statement is true?

142) Which product contains a chlorhexidine-analog?

143) If the canals are already obturated, and a severe endodontic flare-up (with no evidence of acute apical abscess though) occurs despite an adequate prior treatment, what should be done?

144) The pulpectomy is the surgical removal of:

145) Which instrument should be used to remove the apical portion of GP in an attempt to retreat a failure case?

146) Which method is helpful in determine the working length of an immature tooth?

147) ការព្យាបាល Pulp polyp is:

148) Which are the characteristics that make the pulp tissue different from other soft connective tissues in the human body?

149) A patient comes to your clinic on Saturday afternoon complaining of severe sharp pain when eating ice-cream. Your examination revealed a hypersensitive response to thermal test which subside as soon as the stimulus removed. The periapical radiograph shows normal intact PDL. What do you think is your diagnosis?

150) According to “apical box preparation” technique, the apical enlargement of mesio-buccal root of an upper molar with 1canal should be:

151) Irrigation in root canal treatment, should be undertaken at frequent intervals during instrumentation to:

152) In which case can the treated-tooth be left open?

153) Contre indication the tooth extraction is :

154) An adequate restoration after an endodontic treatment should have all of the following properties except one which is:

155) Endodontic radiograph in diagnosis is:

156) To achieve optimum cavity preparation which of the following factors of internal anatomy must be considered:

157) The treatment of choice for the vital wide apex tooth which shows the pulp exposure is:

158) What is not an advantage of build-up without post?

159) Which pulpal condition can be treated with vital pulp therapy?

160) Which cells form dentin?

161) Which is not one of the iatrogenic causes of apical periodontitis?

162) Which technique for preparation should not be used for curved canals?

163) Barbed broaches used for

164) Which of the following stimuli can be considered as non-destructive?

165) What are the indications of direct pulp capping in primary teeth?

166) Iodine potassium iodide is usually used in which concentration?

167) Decreased size of pulp chamber and root canals of aged teeth is due to:

168) Which dentin is formed in response to the injury?

169) A Fourth canal typically found in which of the following:

170) Which bone lines the socket of the tooth?

171) What shape is the access cavity for upper and lower incisors?:

172) Which of the followings is not one of the treatment principles of root canal therapy?

173) The absence of lamina dura is usually indicative of:

174) What is the conservative approach to restore a posterior tooth with a large decay but with more than half of the tooth structure remained and no esthetic concern?

175) The patient has no any symptoms and response normally to both pulp and periapical test. However, the radiograph shows the caries extend well into the pulp. So, what is the likely pulpal diagnosis of this case?

176) អ្នកចាប់ផ្តើមព្យាបាលរន្ធឬសធ្មេញ លេខ៤៦រយះ២ថ្ងៃមកហើយគ្មាន រោគសញ្ញាអ្វីឡើយដល់ថ្ងៃទី៣ អ្នកជំងឺត្រ ឡប់មករកអ្នកវិញ ហើយត្អួញត្អែរប្រាប់ថាមានការឈឺចាប់ខ្លាំង ពេលទំពារ។ Clinical examination pain on percussion only. Radiograph shows normal apical erea. The cause of the pain might be:

177) Direct pulp capping used by:

178) If an instrument is broken in the middle third of a canal at a later stage of the root canal preparation of a tooth with a periapical lesion, and the separated instrumented can neither be retrieved nor bypassed, how would the prognosis be like?

179) Upper first premolars usually have

180) In which condition should a final permanent restoration most likely be delayed after completing endodontic treatment?

181) A common name of chronic apical periodontitis is:

182) The pulpectomy have :

183) When can we directly restore the endo-treated teeth?

184) A cold test best localizes:

185) The tactile sensation technique should not be used to determine working length in which of the following conditions?

186) If the radiolucent lesion has neither become larger or significantly smaller in size after more than 1 year of follow-up, how should we evaluate the outcome of the treatment?

187) If lower concentrations of NaOCl are to be used, how should they be used?

188) Which condition always requires incision and drainage?

189) How many millimeters of thickness should the temporary restoration (e.g. Cavit or ZnOE) be placed in the access cavity to ensure an adequate seal?

190) The following are important factors in restoring an endodontically treated tooth:

191) Which apical landmark is the part of root canal with the smallest diameter?

192) An ideal root canal:

193) Which condition shouldn’t an electronic apex locator be used?

194) The final restoration of an anterior tooth with a large decay but with more than 1/2 of tooth structure remained plus ferrule effect, and with limited overbite and functional stresses should be:

195) Inflammation of pulp, due to deep caries and cavity preparation , may be resolved by:

196) To avoid improper use which would result in broken instruments:

197) The order of treatment recommended for emergency treatment is:

198) Which are the two commonly used material for indirect pulp capping?

199) According to “apical box preparation” technique, the apical enlargement of the disto-buccal root of an upper molar should be:

200) Why is often advisable to remove an artificial crown from a tooth before preparing an access cavity?

201) Which apical landmark should be used as the apical reference point of choice?

202) The most common cause of root resection failures is :

203) Which of the following is the best solution for irrigation in root canal treatment?

204) The procedure in which only a small portion of coronal pulp (1-3 mm) is removed is called:

205) Which is not a desirable property of an ideal core obturating materials?

206) Which should be the common procedure for emergency treatment of irreversible pulpitis with pulp exposure?

207) What is the intended use of MTAD?

208) Which restorative procedure is not likely to irritate the pulp?

209) What instrument is NOT ever needed for access preparation?

210) Among the following products, which one is the gold standard as an electronic apex locator?

211) Which apical landmark is the location where the pulp tissue ends and periodontal tissue starts?

212) In RCT, over preparationof the outer wall of the optical curvature of the canal with inflexible instrument will cause:

213) What is the dosage of amoxicillin?

214) Which of the following statement is true about broken instruments?

215) Which of the following is not a diagnostic tool commonly used in endodontics?