FACIAL AND DENTAL CHANGES IN ADULTHOOD
FACIAL AND DENTAL CHANGES IN ADULTHOOD
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DOI：
10.1016/s0889-5406(94)70036-2
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发表时间：
1994-08-01
影响因子：
3
通讯作者：
JAKOBSEN, JR
中科院分区：
文献类型：
--
作者：
BISHARA, SE;TREDER, JE;JAKOBSEN, JR
这项纵向调查的目的是研究在25至46岁之间发生的牙面变化在一个未经治疗的正常样本。研究人员对15名年龄分别为25岁和46岁的女性和15名男性进行了脑电图和牙科模型测量。结果表明，女性骨骼面部线性尺寸显著增加，颅底角和下颌突出减小，骨骼凸度和面部散度增加。这些变化大多相对较小。在研究期间，明显的拥挤发生在下颌弓。男性在所有骨骼线性尺寸上都表现出类似的显著增加，颅底角减少，上颌骨骼突出和骨骼凸度增加。随着年龄的增长，上颌和下颌弓都出现了拥挤。总之，研究结果表明，牙齿大小-牙弓长度差异的临床显著增加发生在25岁至46岁之间。这些变化应被视为正常“成熟”过程的一部分。此外，嘴唇、鼻子和下巴位置的相对变化，导致嘴唇在46岁时显得更加向后。当正畸医生为成年患者考虑各种治疗和保留方案时，应考虑到这些变化。
The purpose of this longitudinal investigation was to study the dentofacial changes occurring between 25 and 46 years of age in an untreated normal sample. Measurements were made from cephalograms and dental casts available on 15 women and 15 men at age 25 and 46 years. The findings indicate that females exhibited significant increases in all skeletal facial linear dimensions, a decrease in cranial base angle and mandibular prominence, an increase in skeletal convexity and facial divergence. Most of these changes were of relatively small magnitude. Over the span of the study, significant crowding occurred in the mandibular arch. Males exhibited similar significant increases in all skeletal linear dimensions, a decrease in cranial base angle, and increases in maxillary skeletal prominence and skeletal convexity. Increased crowding with age was seen in both maxillary and mandibular arches. In conclusion, the findings indicate that a clinically significant increase in tooth size-arch length discrepancies occurred between 25 and 46 years of age. These changes should be considered as part of the normal ''maturational'' process. Furthermore, the relative changes in the position of the lips, nose, and chin, cause the lips to appear more retrusive at 46 years of age. These changes should be taken into consideration when orthodontists are considering various treatment and retention options for their adult patients.