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

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

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

4) The pulpectomy immediate are:

5) The ideal opportunity for obturation is:

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

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

8) The BEST treatment for alveolar abscess:

9) In RCT, over preparation of the outer wall of the optical curvature of the canal with inflexible instrument will cause

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

11) Which size of suture should be used for endodontic surgery?

12) Extra canals are:

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

14) How many thicknesses of rubber dam are available?

15) Which material cannot be used to do a heat test?

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

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

18) Pain on percussion before endodontic treatment indicates:

19) Single appointment endodontic therapy is contraindicated in:

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

21) 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?

22) For rubber dam, which thickness seals best?

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

24) Which concentrations of epinephrine are desired for LA used in surgical endodontics?

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

26) The access cavity in a maxillary central incisor is:

27) Ischemic necrosis is caused by:

28) According to “apical box preparation” technique, the apical enlargement of the distal root of a lower molar with two canals should be:

29) Why is straight-line access important?

30) Endodontic treatment is contraindicated when:

31) X rays are used in endodontic treatment to:

32) Which the best choice for pulp capping

33) The preferable type of drain is:

34) If the patient has no gingival recession, how far should the gutta percha be trimmed sealing the coronal?:

35) Calcium hydroxide sealers:

36) Which one of the following conditions can make an electric pulp tester get a false-positive result?

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

38) After an endodontic emergency treatment, the pain is:

39) What a strength of Sodium Hypochlorite is used for canal irrigation?:

40) Which of the following is not a desirable property of sealers?

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

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

43) ក្មេងប្រុសម្នាក់អាយុ១២ឆ្នាំ មានចំនិចតូចៗព៌ណក្រហមនៅ pulp ដែលរីកធំនៅលើធ្មេញថ្គាមធំខាង ក្រោម។ What may be the possible diagnosis?:

44) បរុសម្នាក់មកគ្លីនិករបស់ខ្ញុំហើយត្អួញត្អែរ ថាគាត់ឈឺធ្មេញថ្គាមក្រោម ឈឺចាប់ជាមួយទឹកត្រជាក់ ឬដោយជញ្ជក់ មាត់ការឈឺចាប់នេះនូវតែបន្តទោះបីយកចេញនូវអ្វីដែលជាមូលហេតុក៏ដោយ។ អ្នកជំងឺនេះមានរោគវិនិច្ឆ័យ:

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

46) Biologically active sealer whoch promote peri-apical healing contain:

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

48) CHX-Plus is a combination product of:

49) Pulpal anesthesia fails more commonly in which region?

50) Which statement is true about the indications of root canal therapy (treatment of non-vital teeth)?

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

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

53) Dental history taking:

54) Which of the following flap does not involve gingival margin, thus no risk of gingival recession?

55) A cold test best localizes:

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

57) Which of the following is not a main reason for using rubber dam during root canal treatment?

58) Can assess cavity be modified during the root canal procedure?

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

60) What is the main cause of apical periodontitis?

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

62) When should NaOCl accidents be suspected?

63) Which of the following features is the most important in regards to efficacy of root canal debridement:

64) An ideal root canal:

65) According to “apical box preparation” technique, the apical enlargement of the distal root of a lower molar with one canal should be:

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

67) Why do we always try to preserve the pulp vitality of immature teeth?

68) The maximal distance from the CDJ to the root apex can be up to:

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

70) Give me an example of lubricant products?

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

72) Symptomatic apical periodontitis can be probably diagnosed by:

73) The caries process is generally:

74) Which dressing material is placed permanently over the pulp stump in pulpotomy of primary teeth?

75) 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?

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

77) In case of vital tooth, how should we determine the success of our treatment?

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

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

80) The diameter of dentinal tubules at the peripheral dentin is:?

81) Which is usually used as a scaffold for a contemporary endodontic regeneration?

82) Trigeminal neuvralgia differs from odontogenic pain by being:

83) ការព្យាបាល Chronic ulcerative Pulpitis is:

84) In a retreatment case, the canal enlargement should be:

85) The causes unassociated with dental procedures, there are :

86) Cavity test:

87) The pulpotomy is the surgical removal of:

88) When should we first detect the extent of bone fill following endodontic surgery?

89) 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?

90) Which statement is true about digital radiograph?

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

92) Upper first premolars usually have:

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

94) Which apical landmark is the main apical opening?

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

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

97) Which statement is true about the working time of NaOCl?

98) Which is the antibiotic of choice for endodontic infection?

99) Why do we need to conserve tooth structure when preparing access cavity?

100) Cavity and crown preparation should be carried out:

101) Which condition always requires incision and drainage?

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

103) NaOCl is used in concentrations between:

104) A child has sustained a traumatic exposure of primary central incisor, he presents to you for treatment two days after the injury. Which of the following should be considered?:

105) How many configurations can apical constriction have?

106) 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?

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

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

109) What is the main composition of Gutta-Percha?

110) The pulpectomy immediate are:

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

112) During history taking, a patient complains of pain. Which of the following characteristics of the pain complaint is least relevant?

113) Which instrument should not be rotated?

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

115) How to incise for drainage?

116) The suggested follow-up periods for endodontic treatment range from:

117) Which motion is best used to prepare severely curved canals?

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

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

120) Apical periodontitis cannot heal spontaneously if caused by:

121) The incident of periapical cyst is well below:

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

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

124) The most widely used irrigant displaying optimal cleansing bactericidal properties is:

125) Causes of endodontic failures include:

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

127) 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:

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

129) What is the intended use of MTAD?

130) Where is an ‘extra’ canal often found in upper molars?

131) 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:

132) The Hedstrom file:

133) Irreversible pulpitis can be diagnosed by:

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

135) What is the chief complaint?

136) Which is the main component of the dentin?

137) The final restoration of an anterior tooth with a large decay and with less than 1/2 of tooth structure remained with or without limited ferrule effect should be:

138) According to “apical box preparation” technique, the apical enlargement of lower incisors with 1 canal should be:

139) The lower first molar teeth:

140) Which material cannot be used to do a cold test?

141) Anachoresis is:

142) Which one is a benefit of narrow apical preparation?

143) For the extripationof intire pulp, necrotic debri, and foreing material, one should be:

144) Which cells produce collagen and ground substance of the pulp tissue?

145) Which irrigant has tissue-dissolving ability?

146) What is the restoration of choice for any cavity types in a posterior root-treated tooth with increased functional and lateral stresses?

147) In case of NaOCl allergy,

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

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

150) What shape is the access cavity for upper and lower canines?:

151) Which of the following would be an appropriate referral:

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

153) Which is the most commonly used flap in endodontic surgery?

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

155) Anesthetic testing is most effective in localizing pain:

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

157) 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:

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

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

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

161) A common name of chronic apical periodontitis is:

162) ខណះពេលដែលអ្នកកំពុងពិនិត្យហ្វិលធ្មេញដែលព្យាបាលរន្ធឬសដោយទន្តបណ្ឌិតផ្សេងទៀត អ្នកពិនិត្យឃើញថា Gutta percha in coronal មានសភាពណែនល្អប៉ិន្តែ Gutta percha in apical is poorly, The most likely cause is:

163) Why higher concentrations of epinephrine are desired for local anesthetic used in surgical endodontics?

164) What is a symptom of pulp polyp:

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

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

167) If an instrument is broken in the middle third of a canal at the very beginning 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?

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

169) The central cavity of a tooth Is :

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

171) Which thicknesses of rubber dam are preferably used in most situations?

172) In case of emergency:

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

174) Which is the most commonly used irrigant?

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

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

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

178) The speed at which an anesthetic solution should be injected is:

179) Cementum cannot be resorbed by:

180) Pulpotomy is must be:

181) Usually Maxillary First Premolar has

182) Chlor-XTRA is a combination product of:

183) Preparing access cavities of anterior teeth:

184) At present, which material should be used for root canal disinfection?

185) Which is not the typical indication of endodontic surgery?

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

187) Which cells form dentin?

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

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

190) What is the dosage of amoxicillin?

191) Direct pulp capping used for

192) Which of the following tests is usually used in cases where the patient cannot locate the source of pain properly?

193) To reduce pain and cardiovascular effects upon injecting an LA containing epinephrine, one should not:

194) When should we plan the definitive restoration?

195) Which irrigant can remove smear layer?

196) 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:

197) What shape is the access cavity for upper and lower canines?

198) Two main types of base materials are:

199) How many frame types are commonly used for rubber dam placement?

200) Which of the following is not one of the etiologies of pulpitis?

201) Canal orifices are identified with:

202) Endodontic radiograph in treatment is:

203) Which statement is not true about apical pocket cysts?

204) What shape is the access cavity for upper and lower premolars?:

205) 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?

206) CHX is normally used at concentrations between:

207) មូលហេតុអ្វីដែលចាំបាច់ត្រូវយកចេញនូវ Metal Crown មុនពេលរៀបចំ Access Cavity ?:

208) ភាគច្រើន Mandibular second Premolar មាន

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

210) The endodontics broach:

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

212) The most comment cause of Acute pulpitis is:

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

214) What is the most commonly used irrigant?

215) What does CDJ stands for?