Devraj Indira M, Nandlal Bhojraj, Narayanappa Doddaiah, Deshmukh Seema, Dhull Kanika S
Department of Pediatric & Preventive Dentistry, JSS Dental College & Hospital, JSS Academy of Higher Education & Research (Deemed to be University), Mysuru, Karnataka, India.
Department of Pediatrics, JSS Medical College, JSS Academy of Higher Education & Research (Deemed to be University), Mysuru, Karnataka, India.
Int J Clin Pediatr Dent. 2023 Mar-Apr;16(2):321-326. doi: 10.5005/jp-journals-10005-2518.
Eruption of first primary teeth is a normal physiological process. Antenatal nutritional deficiency and prenatal and neonatal factors play an important role in eruption of primary teeth. Neonatal factors, such as gestational age (GA), degree of prematurity, severity of neonatal illness, and birth weight are primarily related to eruption of primary teeth. The relation between neonatal factors and the timing of eruption of primary teeth has not been studied prospectively among Indian preterm infants.
To evaluate the influence of neonatal factors on the eruption of primary teeth in children born preterm.
A prospective longitudinal cohort study design was adopted. A total of 150 subjects were recruited by simple random sampling. Each child was followed up from birth up to 36 months. Intraoral examination was done and the teeth present in each visit were recorded. Data were statistically analyzed and interpreted.
Descriptive statistics, -tests for independent sample, and Pearson's chi-squared tests were applied. Tooth showing statistically significant difference in mean age of eruption between term and preterm categories was studied for the effect of maternal and neonatal characteristics on eruption using multivariate regression analysis.
The mandibular central incisor was the first tooth to erupt. Significant determinant of eruption of mandibular incisor in term children was found to be parity, weight for GA, and complementary feeding, whereas for preterm children, significant determinants were parity, birth weight birth length, weight for GA, and complementary feeding.
Neonatal factors, such as birth weight, birth length, weight for GA, and introduction of complementary feeding have a strong significant association with the eruption of primary teeth.
The findings of this study will guide in the preventive management of oral health in preterm children.
Indira MD, Nandlal B, Narayanappa D, Effect of Neonatal Factors on the Eruption of Primary Teeth in Children: A Longitudinal Prospective Cohort Study. Int J Clin Pediatr Dent 2023;16(2):321-326.
第一颗乳牙萌出是一个正常的生理过程。产前营养缺乏以及产前和新生儿因素在乳牙萌出过程中起着重要作用。新生儿因素，如胎龄（GA）、早产程度、新生儿疾病严重程度和出生体重，主要与乳牙萌出有关。在印度早产儿中，尚未对新生儿因素与乳牙萌出时间的关系进行前瞻性研究。
评估新生儿因素对早产儿乳牙萌出的影响。
采用前瞻性纵向队列研究设计。通过简单随机抽样招募了总共150名受试者。每个孩子从出生开始随访至36个月。进行口腔检查并记录每次就诊时存在的牙齿。对数据进行统计分析和解释。
应用描述性统计、独立样本t检验和Pearson卡方检验。对于在足月儿和早产儿类别中萌出平均年龄存在统计学显著差异的牙齿，使用多变量回归分析研究母体和新生儿特征对萌出的影响。
下颌中切牙是第一颗萌出的牙齿。发现足月儿下颌切牙萌出的重要决定因素是产次、GA体重和辅食添加，而对于早产儿，重要决定因素是产次、出生体重、出生身长、GA体重和辅食添加。
出生体重、出生身长、GA体重和辅食添加等新生儿因素与乳牙萌出有很强的显著关联。
本研究结果将为早产儿口腔健康的预防性管理提供指导。
Indira MD, Nandlal B, Narayanappa D, 新生儿因素对儿童乳牙萌出的影响：一项纵向前瞻性队列研究。《国际临床儿科牙科学杂志》2023；16(2):321 - 326。
