Determining the cessation of vertical growth of the craniofacial structures to facilitate placement of single-tooth implants
Determining the cessation of vertical growth of the craniofacial structures to facilitate placement of single-tooth implants
复制标题
DOI：
10.1016/j.ajodo.2006.07.022
复制
发表时间：
2007-04-01
影响因子：
3
通讯作者：
Leroux, Brian
中科院分区：
文献类型：
--
作者：
Fudalej, Piotr;Kokich, Vincent G.;Leroux, Brian
简介：单牙种植体通常用于替换青少年正畸患者先天缺失的牙齿。然而，如果种植体在面部生长停止之前放置，它们将相对于相邻的萌出牙齿发生移位。因此，了解青春期后正畸患者的面部发育何时完成是非常重要的。本研究的目的是确定和量化的量的垂直增长的面部骨骼和萌出量的中切牙和上颌第一磨牙青春期后。方法：对142名男性和159名女性在治疗前、治疗后和治疗后10年拍摄的两张或三张头颅侧位片进行评价。使用线性回归模型来确定参数随年龄增长的变化。结果如下：研究结果表明：（1）青春期后面部骨骼的生长仍在继续;（2）在生命的第二个十年期间，两性之间的生长量存在差异，20岁之后，性别间差异基本上消失;（3）女性上颌中切牙的萌出率似乎高于男性。提供预测表以帮助临床医生确定何时拍摄头影测量X线片以评估面部生长的停止。结论：面部骨骼的生长在青春期后仍在继续，但生长量稳步下降，在生命的第二个十年后，在临床上似乎无意义。
Introduction: Single-tooth implants are commonly used to replace congenitally missing teeth in adolescent orthodontic patients. However, if implants are placed before cessation of facial growth, they will submerge relative to the adjacent erupting teeth. Therefore, it is important to know when facial growth is complete in postpubertal orthodontic patients. The purposes of this study were to determine and quantify the amount of vertical growth of the facial skeleton and the amount of eruption of the central incisors and the maxillary first molars after puberty. Methods: Two or 3 lateral cephalograms taken at pretreatment, posttreatment, and 10 years postretention of 142 males and 159 females were evaluated. Linear regression models were used to determine changes in the parameters with increasing age. Results: The findings indicate that ( 1) the growth of the facial skeleton continues after puberty; ( 2) there is a difference in the amount of growth between the sexes during the second decade of life, and after age 20 the intergender difference is substantially diminished; and ( 3) the rate of eruption of the maxillary central incisors in females seems to be greater than in males. Prediction tables are provided to help the clinician determine when to take cephalometric radiographs to assess the cessation of facial growth. Conclusions: The growth of the facial skeleton continues after puberty, but the amount of growth decreases steadily and after the second decade of life seems to be clinically insignificant.