Eidgenössisches Examen Zahnmedizin Practice Questions - Eidgenössisches Examen Zahnmedizin Examen Fédéral De Médecine Dentaire Esame Federale Di Medicina Dentaria Exam

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During the direct restoration of a deep Class I occlusal cavity on a mandibular second molar, which cavity geometry factor (C-factor) calculation represents the highest polymerization contraction stress on adhesive cavity walls, and how is this stress minimized?

C-factor of 5 (5 bonded walls to 1 unbonded surface); minimized by using an incremental oblique layering technique or stress-relieving flowable base C-factor of 0.2 (1 bonded wall to 5 unbonded surfaces); minimized by bulk curing with high-intensity light in under 5 seconds factor of 1 (equal bonded and unbonded surfaces); minimized by using non-adhesive amalgam condensations C-factor of 2 (2 bonded walls to 1 unbonded surface); minimized by placing thick horizontal layers exceeding 4 mm

Correct Answer:

C-factor of 5 (5 bonded walls to 1 unbonded surface); minimized by using an incremental oblique layering technique or stress-relieving flowable base

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