上顎埋伏智歯の口蓋側切開抜去法

抄録

In view of the effects of impacted upper third molars upon occlusion and disarrangement of the dental arch, there recently has been an increasing tendency to remove these teeth.
The author classified the surgical technique for the extraction of impacted third molars into buccal gum incision and palatal incision. This paper discusses the palatal technique, which is performed as follows: 1) An incision of 2-2. 5 cm is made parallel to the upper molars on the palatal side 5 mm away from their dental cervix, and another 1-1. 5 cm incision is made distal to the retromolar gum of 17 or 27. 2) The mucoperiosteal flap is peeled off and raised from the palatal side, while the surgeon notes the site of the foramen palatinum majus and its blood vessel bundles. 3) The bone surrounding the impacted tooth is cut off, and the tooth is removed. 4) The wound is sutured, with minimal drainage. Advantages of this technique are 1) easy access to the operative field with a good and broad view, 2) minimal bleeding, 3) minimal damage of the gingiva attachment and consequertly a short operation time. Its disadvantages are the risk of injuring a large palatal blood vessel and the inability to remove a buccally displaced impacted tooth.