Weiland F, Bantleon H P, Droschl H
Department für Kieferorthopädie, Universitätsklinik für Zahn-, Mund- und Kieferheilkunde, Graz, Osterreich.
Fortschr Kieferorthop. 1992 Jun;53(3):153-60. doi: 10.1007/BF02341450.
The purpose of the study was to analyse and compare deep overbite correction in adult patients carried out by a straight wire appliance and the segmented arch technique as recommended by Burstone. The sample comprised 50 adult, deep bite patients, 25 each treated with straight wire appliance and segmented arch technique. Plaster casts and lateral cephalograms made before and immediately after finishing treatment were analysed. Both techniques were successful in overbite correction; overbite reduction amounted to 3 to 3.5 mm. The straight wire appliance group demonstrated predominantly molar extrusion and as a result posterior mandibular rotation. A slight intrusion of 1 mm was seen in the lower incisor area. The segmented arch technique resulted in an incisor intrusion of 1.5 mm in the upper and 1.7 mm in the lower jaw. No substantiate extrusion in the molar area was found. The advantages of this technique are discussed.
本研究的目的是分析和比较成人患者使用直丝弓矫治器和Burstone推荐的片段弓技术进行深覆合矫治的情况。样本包括50名成年深覆合患者，每组25名，分别采用直丝弓矫治器和片段弓技术进行治疗。对治疗开始前和结束后即刻制作的石膏模型和头颅侧位片进行分析。两种技术在深覆合矫治方面均取得成功；覆合减小量达3至3.5毫米。直丝弓矫治器组主要表现为磨牙伸长，结果导致下颌后部旋转。在下切牙区域可见1毫米的轻微压低。片段弓技术导致上颌切牙压低1.5毫米，下颌切牙压低1.7毫米。在磨牙区域未发现明显伸长。讨论了该技术的优点。
