Department of Dentistry, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia.
Faculty of Technical Sciences, University of Novi Sad, 21000 Novi Sad, Serbia.
Int J Environ Res Public Health. 2019 Jul 9;16(13):2434. doi: 10.3390/ijerph16132434.
All objects put into a child's mouth could be hazardous in terms of trauma and toxic substance exposure. The aims of this study were to evaluate morphological characteristics of the primary teeth bite marks inflicted on various materials and to assess material wear using experimental model.
Bite marks were analyzed on five materials: rubber, plastic, foil, wood, and silicone. In order to mimic children mouthing behavior an experimental setup has been designed using primary teeth placed in dentures and children's equipment specimens.
Deciduous teeth make visible and recognizable traces when using physiological forces on all investigated materials. The most significant material loss was revealed in silicone samples, but it has been observed in all material groups, while mouthing with incisors using higher mastication forces were identified as significant predictors for material wear. There were no significant differences between type, species, and morphological-morphometric characteristics of the bite marks which are made by incisors, canines, and molars.
In the range of physiological bite forces, deciduous teeth lead to wear of material from which toys are made while the analysis of bite marks in children equipment could give some information regarding the risk of trauma and exposure.
所有放入儿童口中的物品都可能造成创伤和有毒物质暴露的危险。本研究的目的是评估在各种材料上造成的乳牙咬痕的形态特征，并使用实验模型评估材料磨损。
在五种材料上分析了咬痕：橡胶、塑料、箔片、木材和硅树脂。为了模拟儿童口含行为，使用放置在义齿和儿童设备标本中的乳牙设计了一个实验装置。
在所有研究的材料上，使用生理力时，乳牙会留下可见且可识别的痕迹。硅树脂样本的材料损失最大，但在所有材料组中都有观察到，而使用更高的咀嚼力用切牙口含被认为是材料磨损的重要预测因素。切牙、尖牙和磨牙造成的咬痕的类型、物种和形态-形态特征之间没有显著差异。
在生理咬合力范围内，乳牙会导致玩具所用材料的磨损，而对儿童设备上咬痕的分析可以提供有关创伤和暴露风险的一些信息。
