Al-Batayneh Ola B, Shaweesh Ashraf I, Alsoreeky Earab S
Department of Preventive Dentistry, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan.
Department of Oral Medicine and Oral Surgery, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan.
Arch Oral Biol. 2015 Jan;60(1):126-33. doi: 10.1016/j.archoralbio.2014.08.014. Epub 2014 Sep 3.
The aim of this study was to provide the timing and sequence of deciduous tooth emergence in a sample of Jordanian children.
A total of 1988 (885 female and 1103 male) children aged from 1 to 45 months recruited from nursery schools and child and maternity health centres in the northern, middle and southern regions of Jordan underwent a dental examination for the detection of deciduous tooth emergence. Children were categorized into 15 3-month-apart age groups. Using Probit regression (SPSS version 16), the median age of emergence per tooth was calculated for the total sample and for both genders.
The period for acquiring deciduous dentition in the total sample ranged from 8.2 to 27.5 months. In either of the maxillary and mandibular arches, deciduous dentition emerged in the following order: central incisor, lateral incisor, first molar, canine and second molar. In addition, there were insignificant differences across side and there was a significant mandibular precedence of the central incisor although the maxillary precedence in the rest of the teeth was insignificant. Moreover, teeth emerged earlier in females although none of the inter-gender differences were significant.
The first standards of the timing and sequence of deciduous tooth emergence specific to the Jordanian population were provided. These standards will be used along with the previously published standards of permanent tooth emergence to aid managing patients in paediatric dentistry and orthodontics and will find applications in forensic and police sciences and in anthropological research.
本研究旨在确定约旦儿童样本中乳牙萌出的时间和顺序。
从约旦北部、中部和南部地区的幼儿园以及儿童与产妇健康中心招募了1988名（885名女性和1103名男性）年龄在1至45个月的儿童，对其进行牙齿检查以检测乳牙萌出情况。儿童被分为15个年龄组，每组间隔3个月。使用概率回归分析（SPSS 16版），计算了整个样本以及男、女两性每颗牙齿萌出的中位年龄。
整个样本中获得乳牙列的时间为8.2至27.5个月。在上颌和下颌牙弓中，乳牙按以下顺序萌出：中切牙、侧切牙、第一磨牙、尖牙和第二磨牙。此外，两侧之间的差异不显著，中切牙在下颌的萌出顺序虽有显著优先性，但其余牙齿在上颌的萌出优先性不显著。而且，乳牙在女性中萌出较早，尽管两性之间的差异均不显著。
提供了约旦人群特有的乳牙萌出时间和顺序的首个标准。这些标准将与先前公布的恒牙萌出标准一起用于辅助儿科牙科和正畸科对患者的管理，并将在法医和警察科学以及人类学研究中得到应用。
