Final Answer:
The cusps that contribute to or form the oblique ridge on a maxillary molar are the Mesiofacial and Distolingual cusps Therefore the correct answer is B) Mesiofacial and Distolingual cusps.
Step-by-step explanation:
The oblique ridge is a prominent feature found on maxillary molars, formed by the convergence of two triangular ridges from specific cusps. In this case, the Mesiofacial and Distolingual cusps are the ones that contribute to or join together to create the oblique ridge. These cusps' specific anatomy and alignment result in the formation of this ridge, aiding in the functional aspects of the tooth's occlusal surface.
The Mesiofacial cusp, situated on the mesial aspect, and the Distolingual cusp, located on the distal lingual side, are positioned in a way that their respective ridges merge to create the oblique ridge. Understanding the relationship between the cusps and their resulting ridges is crucial in dental anatomy, as it helps in comprehending the structural characteristics and functional aspects of the teeth. Identifying the specific cusps responsible for forming the oblique ridge contributes significantly to dental studies and clinical applications.
This knowledge assists in proper diagnosis, treatment planning, and restoration procedures, ensuring accurate dental care and maintenance of oral health. Therefore, recognizing the involvement of the Mesiofacial and Distolingual cusps in the formation of the oblique ridge is fundamental in dental anatomy studies and clinical practice. Therefore the correct answer is B) Mesiofacial and Distolingual cusps.