Final answer:
The question pertains to dental anatomy and the architecture where interproximal bone is coronal to radicular bone, which refers to the normal bone structure around teeth ensuring their stability.
Step-by-step explanation:
The question 'inter proximal bone coronal to radicular bone is what type of architecture' refers to the anatomic structure and arrangement of bones within the mouth, specifically relating to periodontal bone structure around the teeth. This architecture is often described in dentistry and periodontology. The term 'interproximal' refers to the space between adjacent teeth. 'Coronal' usually means closer to the crown of the tooth, while 'radicular' is referencing the root of the tooth.
To give an accurate response, it's important to clarify that the question seems to mix dental terminology with terms from anatomy relating to joints in the body. Nonetheless, the architecture where bone is coronal to the radicular bone would generally refer to a normal alveolar bone level where the bone support found around the crown of the tooth is at a higher, or more coronal, level compared to the bone that surrounds the root of the tooth, thus ensuring the stability and health of the tooth.