What is the root structure for third molars?

What is the root structure for third molars?

• A. Single root
• B. Three roots (fused in upper), Two roots (fused in lower)
• C. Two roots
• D. Four roots

Answer: (B)

The root structure for third molars is typically characterized by having three roots in the upper jaw (maxillary) molars, which can sometimes be fused, and two roots in the lower jaw (mandibular) molars, which may also be fused. This anatomical variation allows for greater stability and support, given that third molars are located at the back of the mouth where the jawbone is less densely populated with soft tissue. The maxillary third molars generally exhibit three roots, which tend to be widely spaced and can vary in their configuration, including fusion of some root branches. In contrast, the mandibular third molars usually have two roots that may also sometimes fuse into a single root, but they predominantly manifest as two distinct roots. This root anatomy is important for dental practitioners during extractions and other treatment procedures, ensuring they are aware of the potential complexities involved with third molars.

The root structure for third molars is typically characterized by having three roots in the upper jaw (maxillary) molars, which can sometimes be fused, and two roots in the lower jaw (mandibular) molars, which may also be fused. This anatomical variation allows for greater stability and support, given that third molars are located at the back of the mouth where the jawbone is less densely populated with soft tissue.

The maxillary third molars generally exhibit three roots, which tend to be widely spaced and can vary in their configuration, including fusion of some root branches. In contrast, the mandibular third molars usually have two roots that may also sometimes fuse into a single root, but they predominantly manifest as two distinct roots. This root anatomy is important for dental practitioners during extractions and other treatment procedures, ensuring they are aware of the potential complexities involved with third molars.