Perforation during endo space preparation what is the most surface of distal root of lower molar will have tendency of perforation:
- A- M SURFACE.
- B- Distal surface.
- C- Buccal surface.
- D- Lingual surface.
The statement "A- M SURFACE" is the most likely surface of the distal root of a lower molar to have a tendency for perforation during endodontic space preparation.
Here's why:
- M surface:
This refers to the mesiolingual groove, a concavity on the distal root of a lower molar where the mesial and lingual root canals converge. The thin dentin walls of this groove, coupled with its proximity to the pulp chamber and furcation, make it particularly susceptible to perforation during instrumentation.
- Distal surface:
While the distal surface itself is not as prone to perforation as the M surface, it can be at risk if the file deviates from the intended canal path during preparation.
- Buccal and Lingual surfaces:
These surfaces are generally thicker and less likely to perforate compared to the M surface and distal surface, unless there are anatomical variations or unusual curvature in the root canal.
Therefore, due to its thin dentin and proximity to critical areas, the M surface is the most vulnerable area for perforation during endodontic space preparation on the distal root of a lower molar. Careful attention and proper technique are crucial to avoid perforations in this vulnerable area.
Additional Factors:
Here are some additional factors that can increase the risk of perforation on the M surface:
- Pre-existing thin dentin:
Previous caries, restorations, or resorption can weaken the dentin walls in the M surface.
- Curvature of the root canal:
If the canal has a sharp bend near the M surface, it can be challenging to navigate instruments safely.
Experience of the dentist: Skill and experience in endodontic procedures play a significant role in minimizing the risk of perforations.
Labels
Endodontics