Anatomical and Histological Characteristics of Prematurely Erupted Teeth in Newborns.

IF 0.4 Q4 DENTISTRY, ORAL SURGERY & MEDICINE

JOURNAL OF DENTISTRY FOR CHILDREN Pub Date : 2023-11-15

Amolkumar Lokade, Morankar Rahul, Deepika Mishra, Kiran Jot, Nikhil Shrivastava, Nitesh Tewari, Kalpana Bansal, Vijay P Mathur

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引用次数: 0

Abstract

Purpose: To assess the characteristics of dental hard and soft tissue structures of prematurely erupted teeth in newborns. Methods: Extracted natal and neonatal teeth were assessed in ground sections for evaluation of enamel, dentin, dentino-enamel junction and cementoenamel junction. Soft tissue harvested was histologically analyzed for cellularity, vascularity and other characteristics of the dental pulp. Results: This study included 15 teeth from nine neonates, of which seven erupted at birth, eight erupted within the first month of birth. All erupted in the mandibular anterior region. The demineralized ground section revealed enamel cracks, a straight dentinoenamel junction, and S-shaped dentinal tubules along with the enamel lamellae, and enamel spindle. None of the samples showed enamel tuft or cementum. Histology of soft tissue revealed enhanced cellularity, vascularity without any fibrosis, calcification and inflammation when compared with the young healthy pulp in permanent teeth. Conclusion: The prematurely erupted teeth in newborns were almost exclusively rootless and exhibited the characteristic anatomical findings pertaining to enamel, dentin, dentinoenamel junction and cementoenamel junction. The histology of their dental pulp was characterized by increased cellularity and vascularity compared.

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新生儿早失牙的解剖学和组织学特征

目的：评估新生儿早萌牙齿软硬组织结构的特征。方法：对拔出的新生儿牙齿进行切片评估：对拔出的新生儿牙齿进行地面切片评估，以评价牙釉质、牙本质、牙本质-釉质交界处和牙本质-釉质交界处。对采集的软组织进行组织学分析，以确定牙髓的细胞性、血管性和其他特征。结果：这项研究包括 9 名新生儿的 15 颗牙齿，其中 7 颗在出生时萌出，8 颗在出生后一个月内萌出。所有牙齿均在下颌前部萌出。去矿化的地面切片显示出釉质裂缝、直的牙本质交界处、S形牙本质小管以及釉质薄片和釉质纺锤体。所有样本均未显示釉质束或骨水泥。软组织的组织学检查显示，与恒牙中年轻健康的牙髓相比，细胞和血管增强，没有任何纤维化、钙化和炎症。结论新生儿早萌牙齿几乎都是无根的，在珐琅质、牙本质、牙本质珐琅质交界处和牙本质珐琅质交界处都有特征性的解剖发现。其牙髓组织学特征是细胞和血管增多。

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来源期刊

JOURNAL OF DENTISTRY FOR CHILDREN DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

1.00

自引率

0.00%

发文量

期刊介绍： Acquired after the merger between the American Society of Dentistry for Children and the American Academy of Pediatric Dentistry in 2002, the Journal of Dentistry for Children (JDC) is an internationally renowned journal whose publishing dates back to 1934. Published three times a year, JDC promotes the practice, education and research specifically related to the specialty of pediatric dentistry. It covers a wide range of topics related to the clinical care of children, from clinical techniques of daily importance to the practitioner, to studies on child behavior and growth and development. JDC also provides information on the physical, psychological and emotional conditions of children as they relate to and affect their dental health.