A positive guide to anterior tooth placement
A positive guide to anterior tooth placement
复制标题
前牙放置的积极指导
DOI：
10.1016/0022-3913(64)90013-7
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发表时间：
1964
影响因子：
4.6
通讯作者：
J. Douglas
中科院分区：
文献类型：
--
作者：
F. Maritato;J. Douglas
测量的头x线照片表明，某些解剖标志的稳定性与有牙和无牙患者有关。三次试验的结果表明：1。在100例患者中，70例的上颌中切牙以龈的三分之二而不是切的三分之一作为唇的主要支撑。上颌中切牙的牙槽骨位于a点前。上颌中切牙最阴唇的部分位于a点和牙槽骨的前方。拔除前牙后，ta点保持相对稳定。当义齿的唇缘完全伸展并保持在患者的生理耐受范围内时，它非常靠近a点。
Measurements on cephalometric roentgenograms were made to indicate the stability of certain anatomic landmarks as related to dentulous and edentulous patients. The findings of the three tests demonstrate:1. The gingival two thirds rather than the incisal one third of the maxillary central incisors acted as main support of the lip in 70 out of 100 patients.2. The alveolar bone of maxillary central incisors is anterior to pointA.3. The most labial portion of the maxillary central incisor is anterior to pointA and to the alveolar bone.4. After extraction of anterior teeth, pointA remains relatively constant.5. The labial border of the denture, when fully extended and kept within the physiologic tolerance of the patient, lies in very close proximity to pointA.