1) According to “apical box preparation” technique, the apical enlargement of the palatal root of an upper molar should be:

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

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

4) Patients scheduled for retreatment:

5) Anachoresis is:

6) How do bacteria and their byproducts usually reach the pulp?

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

8) How many configurations can apical constriction have?

9) Canal obliteration as seen radiographically is usually indicative of:

10) Effeciency of irrigation is affected by:

11) The objective of pulpotomy is to:

12) 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?

13) The diameter of dentinal tubules at the inner surface of the dentin is:?

14) Which is not a factor to consider when making a decision about the timing of obturation?

15) If an instrument is broken at the apex of a canal after the root canal preparation is completed of a tooth with a periapical lesion, and the separated instrumented can neither be retrieved nor bypassed, how would the prognosis be like?

16) Which condition always requires incision and drainage?

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

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

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

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

21) Which is the amount of anesthetic solution injected in intraosseous injection?

22) What is the loading dose of penicillin VK?

23) According to “apical box preparation” technique, the apical enlargement of lower premolars with one canal should be:

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

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

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

27) The root canal is ready for obturation:

28) Root canal cements should:

29) A motion in which a file is rotated 60-90 degree clockwise and then move counter-clockwise through 120-360 degree is called:?

30) Which solution can be used as an alternative to EDTA?

31) What is the restoration of choice for a posterior tooth with a large decay and less than half of the tooth structure remained?

32) 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:

33) A disadvantage of Cavit as compared to IRM as a temporary restoration is that Cavit:

34) Which cell type is the source of radicular cyst formation?

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

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

37) Moat important aspect of irrigation is:

38) Which of the following is a desirable property of an ideal sealer?

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

40) What will happen if we do not completely remove all the contents of pulp chamber?

41) Which solution is used to disinfect the operating field after rubber dam placement?

42) ការព្យាបាល Chronic ulcerative Pulpitis is:

43) The causes of pulp injury associated with dental procedures, there are :

44) H files used by :

45) K files used by

46) The highest incidence of the pulp necrosis is associated with:

47) Which statement is true?

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

49) Which one is a benefit of wide apical preparation?

50) Upper second premolars usually have:

51) How can oral and maxillofacial surgery cause pulp injury and necrosis?

52) Why high-torque handpiece should only be used for detail work and to excavate carious soft dentin?

53) 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:

54) Which one has the most tissue-dissolving ability?

55) 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?

56) បរុសម្នាក់មកគ្លីនិករបស់ខ្ញុំហើយត្អួញត្អែរថាគាត់ ឈឺចាប់បន្តិចបន្តួចលើកលែងតែ ពេលទំពាចំណីអាហារចូលក្នូង Cavity។អ្នកជំងឺនេះមានរោគវិនិច្ឆ័យ:

57) មូលហេតុអ្វីដែលចាំបាច់ត្រូវយកចេញនូវ Metal Crown មុនពេលរៀបចំ Access Cavity ?:

58) The plexus of Raschkow is located:

59) 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:

60) Zinc-oxide eugenol cement has all the following properties except one which is:?

61) Cervical pulpotomy is also called:?

62) Fibers in the pulp tissue are mainly:

63) In horizontal sections, which is the most common shape of apical constriction?

64) What is the dosage of penicillin VK?

65) According to “apical box preparation” technique, the apical enlargement of lower premolars with two canals should be:

66) Why do we usually need to resect the root end for apical surgery?

67) Which is the most common dental emergency?

68) A Pregnant patient in her first trimester attends for dental examination, which of the following is correct:

69) While pulp testing a tooth, a false-negative response is likely to occur:

70) Cavity test:

71) Which color of rubber dam should be used if possible?

72) For the extirpation of entire pulp, necrotic debris, and foreing material, one should use:

73) For the extripation of entire pulp, necrotic debris, and foreign material, one should use

74) What is the main advantage of stepwise excavation?

75) Which are the two universal clamp designs?

76) The most comment cause of Acute pulpitis is:

77) When endodontically treating the maxillary first molar, which of the following is correct:

78) Among all types of electronic apex locator, which type is the less reliable and accuracy?

79) How to incise for drainage?

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

81) What are the responses of the pulp tissue to non-destructive stimuli?

82) What is a symptom of pulp polyp:

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

84) Which is the main component of the dentin?

85) Regarding Percussion testing, which of the following is correct:

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

87) Upper second premolars usually have

88) The effects of mechanical instrument are enhanced by all of the following properties of root canal irrigation except one:?

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

90) មានអ្នកជំងឺមានdraining sinus tract in labial vestibule of a maxillary central incisor. To confirm your diagnosis about the original of pathoses you should:

91) X rays are used in endodontic treatment to:

92) Which of the following is not a procedural error usually caused by improper straight-line access?

93) Most cases of pulpitis are caused by:

94) Which bone lines the socket of the tooth?

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

96) CHX is normally used at concentrations between:

97) Which is the best treatment of failed root canal therapy:

98) When should metronidazole be prescribed in addition to penicillin?

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

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

101) Trigeminal neuvralgia differs from odontogenic pain by being:

102) Most of endodontic flare-ups can be managed by:

103) Endodontic radiograph in diagnosis is:

104) Which dentin is formed during tooth development?

105) What is not an advantage of plastic material build-ups (particularly composite) with post over the use of cast post and core?

106) When chlorhexidine is mixed with EDTA, what will occur?

107) Which is a more important factor as a cause of tooth fracture after endodontic treatment without a protective restoration?

108) Bent burs should be discarded because:?

109) According to “apical box preparation” technique, the apical enlargement of mesio-buccal root of an upper molar with 2 canals should be:

110) How many types of motion to manipulate endodontic hand instruments?

111) The pulpectomy immediate are:

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

113) Which of the following tests is used detect periodontal status?

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

115) Pulpotomy is must be:

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

117) A patient presents wet a draining sinus tract in labial vestibule of a maxillary Central incisor.

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

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

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

121) 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?

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

123) To find pulp horns, which instrument is most useful?

124) ក្នុង Patient’s Complaint គ្រូពេទ្យត្រូវ

125) Third degree tetracycline staining is:

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

127) 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:

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

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

130) Fractured instruments may be avoided by:

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

132) 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:

133) 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?

134) Which of the following cells are not found in the pulp tissue?

135) បរុសម្នាក់មកគ្លីនិករបស់ខ្ញុំហើយត្អួញត្អែរ ថាគាត់ឈឺធ្មេញថ្គាមក្រោម ឈឺចាប់ស្រួច( sharp pain) ជាមួយ ទឹកត្រ ជាក់តែរយះពេលខ្លីយ៉ាងយូបំផុតមួយនាទី។អ្នកជំងឺនេះមានរោគវិនិច្ឆ័យ:

136) បរុសម្នាក់មកគ្លីនិករបស់ខ្ញុំហើយត្អួញត្អែរ ថាគាត់ឈឺធ្មេញថ្គាមក្រោម ឈឺចាប់ជាមួយទឹកត្រជាក់ ឬដោយជញ្ជក់ មាត់ការឈឺចាប់នេះនូវតែបន្តទោះបីយកចេញនូវអ្វីដែលជាមូលហេតុក៏ដោយ។ អ្នកជំងឺនេះមានរោគវិនិច្ឆ័យ:

137) For rubber dam, which thickness seals best?

138) Lower permenant premolars:

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

140) Which dentin plays a role in creating the sclerosis of the dentinal tubules?

141) Usually, the bucco-lingual dimension of apical constriction is larger than that of mesio-distal by how many millimeters?

142) Which analgesics should be used for mild pain?

143) Pulp stones are most often seen in:

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

145) Which technique can we use to remove any residual sealer after GP removal in a retreatment case?

146) After cleansing, the dentin surface should be:

147) Which of the following is not a potential cause of obturation-related failure?

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

149) The innervation of the pulp tissue consists of:

150) SmearClear is a combination product of:

151) A pentency file or intial file:

152) Chlor-XTRA is a combination product of:

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

154) The pulpotomy is the surgical removal of:

155) The end result of pulp polyp is:?

156) What type of dentine has to be removed during the indirect pulp capping procedure?

157) Which of the following tests is mainly use to detect cracks?

158) Which dentin is formed physiologically after the tooth is fully developed?

159) Which irrigant can remove smear layer?

160) According to “apical box preparation” technique, the apical enlargement of both canals of mesial root of a lower molar should be:

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

162) Which of the following statements is not correct about the age changes in the dental pulp?

163) A good root filling of endodontic is :

164) Which of the following statements is not true?

165) Pain on percussion before endodontic treatment indicates:

166) Which are the most numerous cells in the pulp?

167) What is the chief complaint?

168) Rooting-filling materials must be

169) Which is a common premedication used when pulpal anesthesia still fails even all attempts have been tried?

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

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

172) The best approach for diagnosis of tooth pain is:

173) Which is the most demanding flap in term of the operator’s skill?

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

175) What may not be one of the causes of NaOCl accidents?

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

177) What is the intended use of MTAD?

178) What is the objective of coronal access ?: