<prompt> Embrasure clasp are usually used in cases ofClass I cases with modificationsClass II cases with modificationsClass III cases without modificationsAll of the above  <response>: In the fabrication of an unmodified Class II or Class III partial denture, there are no edentulous spaces on the opposite side of the arch to aid in clasping. Mechanically, this is a disadvantage. However, when the teeth are sound and retentive areas are available or when multiple restorations are justified, clasping can be accomplished by means of an embrasure clasp. 