The temporal fossa is located on the side of the skull, above the zygomatic arch and lateral to the orbit. The Gillies approach involves an incision in the temporal region to access the zygomatic bone, which is then manipulated to reduce the fracture and restore its normal anatomical position. This approach is commonly used in oral and maxillofacial surgery for the management of complex zygomatic fractures.

The most suitable anaesthesia for the extraction of a deciduous molar is inferior alveolar nerve block.

Local infiltration is a safe and effective technique for achieving anesthesia in most situations. However, it is contraindicated in the presence of infection in the arch because it can spread the infection further or lead to complications like an abscess. Hypertension and kidney problems are not direct contraindications to local anesthesia, but they may require careful monitoring of the patient's condition. Diabetes with urine sugar present does not directly contraindicate the use of local anesthetics unless there are severe complications or neuropathy involved.

In a grand mal epileptic patient requiring emergency extraction, it is essential to proceed with caution and ensure that the patient is on a stable anticonvulsive medication regimen. The patient should be monitored closely and have immediate access to medical support in case of a seizure during the procedure.

Type C fibers, which are unmyelinated and smaller in diameter, are more sensitive to local anesthetics compared to other types of nerve fibers.