Extraction of wisdom tooth is very common these days. You will find that majority of people have got their wisdom teeth extracted due to complication discussed above. The most common reasons for extraction of wisdom tooth are insufficient space in jaw for their eruption, improper angulation of wisdom teeth. Angulation is an important factor in decision of extraction of wisdom tooth as improper angulation can lead to many problems, like where the wisdom tooth is angulated towards the cheek, it causes repeated cheek bites, which are very painful and in case the wisdom tooth is angulated towards the tongue, it causes painful laceration of the tongue. Due to repeated bruising of tongue by tooth can lead to tongue becoming numb sometimes. Another reason for extraction of wisdom tooth is preventive extraction of wisdom teeth. This is done with a view that if not extracted, can lead to food impaction behind the wisdom teeth. This is because it is very difficult to clean this area as tooth brush or floss does not reach there. The frequent impaction of food at this place can lead to many problems for the patient.
Another reason for extraction of wisdom teeth is in the case of Orthodontic treatment for braces. In such cases sometimes the eruption of wisdom teeth can damage the treatment, so the Orthodontist recommends the extraction of wisdom teeth. Extraction of wisdom teeth is complicated as compared to simple extraction of teeth. Wisdom teeth should be got extracted from its specialist to avoid the complications. Oral Surgeons are the dentists who specialize in extraction of the wisdom teeth. Before extraction, they make the complete diagnosis and take panoramic x-ray to make their decision.
Preventive removal of wisdom teeth is a common practice followed by dentists especially in Western Countries. The Cochrane Collaboration in year 2006 published a systematic review of randomized controlled trials for evaluating the effects of preventative removal of asymptomatic wisdom teeth. The authors found no evidence for supporting and refuting this practice. There was reliable evidence showing that preventative removal did not reduce or prevent late incisor crowding. Based on different studies it has been established that while it is clear that symptomatic impacted wisdom teeth should be surgically removed, it appears that extracting asymptomatic, disease-free wisdom teeth is not advisable due to the risks associates with it like damage of inferior alveolar nerve. Some studies have suggested that extraction of the asymptomatic tooth may be beneficial if caries are present in the adjacent second molar or if periodontal pockets are present distal to the second molar. Even the dentists graduated from different countries or even from different dental schools in one country, may have different clinical views on preventive removal of wisdom teeth.
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