The term tugben is related to when used in connection

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The term TUGBEN?? is related to : “When used in connection with a master Gutta Percha cone in endodontics” A. Tensile strength of the gutta percha B. Consistency of gutta percha C. Size of the cone D. Fit of the cone in the apical 1 or 2 mm E. Length of the cone
٢٧١ . In root canal therapy it is generally accepted that the ideal root filling,
٢٧٢ . Mesiobuccal root of maxillary first molars MOST COMMONLY have:
٢٧٣ . The most common cause of porosity in porcelain jacket crown is,
D. Excessive condensation of the porcelain E. Inadequate condensation of the porcelain ٢٧٤ . The main factor controlling a decision to increase the occlusal height of teeth for extensive oral reconstruction is whether, A. the inter occlusal distance will be physiologically acceptable after treatment B. there will be sufficient tooth bulk in the abutment teeth for proper retention of the crowns C. at least two third of the original alveolar process will remain for adequate periodontal support D. the aesthetic appearance of the patient will improve sufficiently to warrant the planned reconstruction
٢٧٥ . An advantage of metal-ceramic crowns, compared wit full ceramic crowns for restoring anterior teeth is,
٢٧٦ . In cementing Maryland or Roche bridges, the effect is generally to,
٢٧٧ . The minimal labial tooth reduction for satisfactory aesthetics with porcelain fused to metal crown is,

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