What is Pederson difficulty index?
The difficulty score is judged on the basis of radiographic factors. In this index, Pederson has given difficulty index value for impacted mandibular third molar according to angulations, depth, and ramus relationship (Table 1).
How do you test for lingual nerve damage?
A method for assessing lingual sensation is described, comprising sensory testing, using touch and moving two-point discrimination and patient subjective reporting. The clinical application is seen to be the evaluation of lingual nerve injury consequent upon lower third molar surgery.
What are the symptoms of inferior alveolar nerve damage?
Symptoms of damage to the inferior alveolar nerve include pain, abnormal sensations, and/or numbness in the chin, lower lip, or around the lower teeth. Some people may drool or have trouble opening their mouths.
How is a Coronectomy performed?
A coronectomy is also known as an intentional partial tooth extraction. It is a technique sensitive procedure best performed by your oral and maxillofacial specialists. The tooth is sectioned into upper and lower halves. The crown is removed in its entirety along with part of the roots.
What are war lines?
Winter’s Lines (WAR) These are 3 imaginary lines (red, amber & white) “drawn” on the dental X-ray (these days, normally an OPG / DPT). The white line is drawn along the occlusal surfaces of the erupted mandibular molars & extended over the 3rd molar posteriorly.
What is Wharfe assessment?
Wharf’s Assessment of 3rd Molar Impaction is a very detailed assessment of the Difficulty of Impaction procedure which considers various factors to determine the difficulty of the Impaction Surgery.
Can lingual nerve damage be repaired?
Lingual nerve repairs can be undertaken in a variety of ways: direct anastomosis (by far the most common), nerve autograft (used historically by some surgeons), vein conduits and, more recently, allografts, with differing results.
How long does it take for inferior alveolar nerve to heal?
In most cases, complete recovery occurs 6 to 8 weeks after the trauma, although it may take up to 24 months.
What happens if the alveolar nerve is damaged?
Injury to the inferior alveolar nerve (IAN) and lingual nerves (LN) during dental and oral surgery procedures is an uncommon complication, but understanding the management of the injury is important. Damage to either nerve can lead to numbness and pain of the lip, mucosa and tongue, as well as loss of taste.
Are Coronectomy safe?
According to a 2015 review , extracting a wisdom tooth with roots near the IAN can cause direct or indirect damage to the nerve. Coronectomy in that situation can be a safe procedure that’s associated with a low incidence of injury to the lingual or inferior alveolar nerves.
What happens after a Coronectomy?
Recovery from this procedure is very similar to having the entire tooth extracting. In most cases, the roots become encased in the lower jaw bone and never cause problems again. In some instances, the roots can become infected and may need to be extracted but this is only in a small number of cases.
https://www.youtube.com/watch?v=IduvBbM4FbI