J鉤配合直絲弓矯治技術(shù)治療成人雙頜前突的病例分析
[Abstract]:Objective: To study the effect of J-hook on the sagittal and vertical control of the anterior teeth and the improvement of the profile of soft tissue after tooth extraction. Methods:1 case, female,18 cases of double-jaw process were selected from the orthodontic department of Shenyang Stomatological Hospital in November,2011. The bone type I, the upper and lower mandible are normal, the upper and lower jaw is simple, the upper and lower jaws are simple, the lips are turned out, the upper and lower lips of the upper and lower jaws are tense, the upper and lower lips of the upper and lower lips are obvious (as shown in FIG.1), and the bilateral molars and the sharp teeth have sexual relations, and the overbite cover is positive. It's often, the middle line, it's not. Extruding. According to the data analysis of the initial diagnosis model and the cephalometric measurement data, combined with the patient's complaint, it was decided to use the direct-wire-arch correction technique, to remove the four first premolars for correction, and to cooperate with the head cap J-hook for traction during the closing of the tooth extraction clearance phase, and pull 3 to protect the posterior teeth in the distal direction. The upper and lower lips are removed and the soft tissue side is improved when the upper and lower lips are lowered and recovered at the same time. In this case, the 3-3 ceramic bracket (0.022 * 0.025 in) produced by 3M Company of the United States was used for the treatment. When the J-hook was used for three-way, the traction force was about 200 g, the direction was parallel to the occlusal plane, and the traction force was 100-150g per side when the maxillary anterior teeth were depressed and recovered, and the traction direction was 30 擄 to the occlusal plane. on top, the wearing time is 12 hours a day, To measure and analyze the anterior and posterior model of the correction and the side of the skull, and compare the soft and soft tissue of the patient and the change of the teeth before and after the correction. In addition, an additional case of an adult double-process application (see page 17) was added to the treatment. Bi. Results: A total of 2 cases of J-hook case treatment course 4 months. After the end of the treatment, the upper and lower teeth of the patient are arranged orderly; the bilateral molar and the sharp tooth have sexual relations; the covering of the front teeth is normal; the upper and lower midline is positive; and the tooth tip and the tooth lock are closed The shape of the convex surface becomes the face of the face, the side appearance of the soft tissue is improved to a great extent, and the patient has no effect on the correction result. It is generally satisfactory. The measurement of the head-side panel before and after the treatment of the patient is as follows: (1) the sagittal changes and the reduction of the SNA by 0.5 擄, indicating that the maxilla has little alteration with the recovery of the anterior teeth; the U1-SN is reduced by 12.5 擄, the U1-NA is reduced by 11 擄, the L1-MP is reduced by 8 擄, the L1-NB is reduced by 8 擄, and the U1-L1 increases 21 擄, indicating the inclination of the upper and lower anterior teeth, the degree of penetration decreased, the U6-RL increased by 2.2 mm, and the U1E-RL was reduced by 4.8 mm. The J-hook enhanced the upper posterior teeth support, the posterior teeth advanced less, the anterior teeth were recovered, and the sagittal alignment of the patient was very good Control. (2) Vertical change, U6-PP did not change, the teeth did not extend during the treatment; U1E-PP was reduced by 2.5 mm, and U1A-PP was reduced by 1.5 mm, indicating that the J-hook had a significant depression on the upper anterior teeth; the reduction of OP-FH by 1 擄, and the reduction of MP-FH by 1.5 擄 indicated that the mandible and the occlusal plane were reduced in a small amount The needle is rotated to indicate the vertical orientation To control. (3) Soft tissue change, nasal lip angle NLA increased by 5 擄, Z angle reduced by 8 擄, UL-EP reduced by 1.4 mm, LL-EP reduced by 4.9 mm, ULP was reduced by 0.7 mm, LLP was reduced by 4.9 mm, and upper lower lip was removed with the recovery of the incisor; NLA was increased by 5 擄, indicating that the nasolabial groove was shallow; the upper lip thickness increased by 1.4 mm, the lower lip thickness group The length of the upper lip is not changed, the compensatory reduction of the length of the lower lip is reduced by 2.0 mm. With the recovery of the tooth, the upper and lower lip form is also compensated. (1) Sagittal: U6-RL increased by 0.7 mm, U1E-RL decreased by 5.7 mm, and vertical to U6-PP, indicating that the sagittal alignment of the implant was significantly enhanced; (2) the vertical orientation: U1A-PP was reduced to 0.5 mm, indicating that the implant was vertical to the anterior teeth slightly The pressure of U1E-PP increased by 1.5 mm, OP-FH was reduced by 1 擄, and the pendulum effect associated with the large number of internal anterior teeth was used to make the occlusal plane Clockwise rotation. Conclusion: (1) The head cap J hook is pulled in the sagittal direction to receive the anterior teeth, and the posterior teeth are anti-and bright. improve that lateral appearance of the patient. (2) the head cap J hook can lower the upper front tooth in the vertical direction to resist the pendulum effect in the process of recovering the front teeth; and meanwhile, the lower level of the high-angle patient is controlled, The jaw is rotated clockwise. (3) After the orthodontic tooth extraction, the soft tissue is also compensated, and the upper and lower lips follow the amount of the tooth in the incisor. (4) The J-hook and the implant can be well controlled in the sagittal direction when the reinforcing brace is enhanced, but the J-hook is in the vertical direction
【學(xué)位授予單位】:大連醫(yī)科大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2014
【分類號】:R783.5
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