**Articulator and Dental Prosthesis Checks: Key Points for Students**1. **On checking the try-in on the articulator, all of the following is correct except:** - a) When the articulator is in centric position, both hinge and translation movement is allowed. - b) The incisal pin should touch the incisal table at the correct vertical dimension of occlusion. - c) The articulator should move from centric to eccentric with free articulation of teeth. - d) None of the above.2. **On checking the try-in on the mounted master cast, all of the following is correct except:** - a) Trial denture base should adapt properly on the cast with no relief made on the master cast. - b) Casts free from wax spots on the ridge. - c) Casts shouldn’t be touching at rear. - d) None of the above.3. **The neutral zone:** - a) It is space between the cheek on one side and ridge on the other side. - b) Placement of artificial teeth lingual to this zone results in tongue cramping. - c) Artificial teeth in this zone is subjected to opposite non-equal forces. - d) All of the above.4. **On checking the centric relation in try-in stage:** - a) During mandibular closure, the teeth should meet cusp incline to cusp incline. - b) If centric relation was wrong, new centric relation record is required with no change in the articulator mounting. - c) Shifting of the trial denture base on mandibular closure shouldn’t be elicited. - d) None of the above.5. **Uneven bearing in try-in stage, all of the following is correct except:** - a) This is may be due to cuspal interference at such side. - b) Trial denture bases are touching at rear during recording the jaw relation. - c) If wax knife can pass through one side then at such side the teeth are removed and new jaw relation is to be made. - d) None of the above.6. **Two pieces of thin celluloid strips are placed between the teeth in the molar region on each side to check:** - a) The equilibration of occlusal pressure in the waxed up denture.

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Answered: 1) On checking the try in on the…

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