Ferrario V F, Sforza C, Serrao G, Colombo A, Ciusa V, Bignotto M
Functional Anatomy Research Center, University of Milan, Faculty of Medicine, Italy.
Int J Adult Orthodon Orthognath Surg. 1998;13(3):210-6.
The aims of the present investigation were to devise a new anteroposterior measurement of maxillomandibular discrepancies that would consider both hard and soft tissue contributions, and to verify the correlation of this measurement to a well-established linear assessment of anteroposterior discrepancy. On the pretreatment lateral cephalographs of 300 orthodontic patients (162 males, 138 females) aged between 6 and 50 years, the Wits appraisal and a new "soft tissue" Wits appraisal (linear distance between the projections of soft tissue A and B points on the bisecting occlusal plane) were measured. In the analyzed sample, the former was more variable than the latter. The two measurements were significantly correlated to each other without sex- or age-characteristic patterns. From the correlation, reference values for the new measurement were estimated and found to be between -1.9 mm and 5.4 mm for individuals with a normal occlusion. The new measurement could allow a more careful evaluation of the soft tissue drape together with the underlying hard tissue structure.
本研究的目的是设计一种新的用于测量上颌与下颌差异的前后径测量方法，该方法将同时考虑硬组织和软组织的影响，并验证此测量方法与一种成熟的前后径差异线性评估方法之间的相关性。在300例年龄在6至50岁之间的正畸患者（162例男性，138例女性）的治疗前头颅侧位片上，测量了Wits评估值和一种新的“软组织”Wits评估值（软组织A点和B点在平分咬合平面上的投影之间的线性距离）。在分析的样本中，前者比后者更具变异性。这两种测量方法彼此显著相关，且不存在性别或年龄特征模式。根据相关性，估算出了新测量方法的参考值，发现正常咬合个体的参考值在-1.9毫米至5.4毫米之间。这种新的测量方法能够更仔细地评估软组织覆盖情况以及其下方的硬组织结构。
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