Читать книгу Orthodontic Treatment of Impacted Teeth - Adrian Becker - Страница 105

When traction is applied to a palatally impacted canine in the closed eruption technique, the tooth may move rapidly, sometimes from a considerable distance, deep in the bone. As it exits the bone, it causes the very palpable bulge beneath the thick mucosa of the palate to increase in size. The thick mucosa will, in turn, create difficulty for the tooth to erupt through it. In such a circumstance, it is recommended that a small circular incision be made around the crown tip of the impacted tooth and the tissue removed to an extent that will re‐expose the tooth with an aperture not exceeding the circumference of its crown. Further traction will then erupt the tooth very rapidly. Delay in performing this simple procedure will over‐tax the anchorage unit and simply cause the anchor teeth to intrude and the overall archform to become disrupted.