Mulla Humeera M, Vibhute Nupura, Baad Rajendra, Shashikiran N D, Parker Mustaq, Parmod R C, Belgaumi Uzma, Kadashetti Vidya, Bommanawar Sushma
Department of Oral and Maxillofacial Pathology, Microbiology and Forensic Odontology, School of Dental Sciences, Karad, Satara, Maharashtra, India.
Department of Oral Pathology Microbiology, School of Dental Sciences, Karad, Satara, Maharashtra, India.
Indian J Dent Res. 2018 Jan-Feb;29(1):41-45. doi: 10.4103/ijdr.IJDR_746_16.
Foreign bodies and tissue reactions to foreign materials are commonly encountered in the oral cavity. Exogenous materials causing foreign body reactions may be metallic (amalgam) or nonmetallic (suture materials, vegetable matter). Implantation of food particles in the oral tissues has been known to cause reactive lesions such as oral pulse granuloma. Implantation could be through extraction sockets, deep periodontal pockets, associated with tumor growth, interdental areas of teeth, unfilled root canals, and grossly decayed teeth. These get rapidly digested and altered by host responses. Cellulose persists as hyaline material and invokes chronic granulomatous response. This change may mimic other pathologies.
Representative specimens from commonly consumed food groups were selected, fixed in 10% neutral buffered formalin, processed, sectioned, stained with hematoxylin and eosin stain and observed under light microscope.
Each specimen revealed unique, distinct histology of each food type. The plant materials had a characteristic appearance of rigid double cell wall while rigid regular partitions containing nutrient material were revealed in seeds and beans. Starch-contained lentils exhibited clear spaces. Following is a brief description of some of the significant histological findings of each of the specimens processed and stained.
Thus, the study of histological structure of vegetables and legumes will enable their easy recognition in oral biopsy samples and help in distinguishing them from other pathologies and artifact.
口腔中常见异物以及机体对异物的组织反应。引发异物反应的外源性物质可能是金属性的（汞合金）或非金属性的（缝合材料、植物性物质）。已知口腔组织中植入食物颗粒可引发诸如口腔脉管肉芽肿等反应性病变。植入途径可能是拔牙创口、深牙周袋、与肿瘤生长相关处、牙间隙区域、未充填的根管以及严重龋坏的牙齿。这些物质会迅速被宿主反应消化和改变。纤维素会以透明物质的形式持续存在，并引发慢性肉芽肿反应。这种变化可能会与其他病理情况相似。
从常见食用食物类别中选取代表性标本，用10%中性缓冲福尔马林固定，进行处理、切片，用苏木精-伊红染色并在光学显微镜下观察。
每个标本都呈现出每种食物类型独特、明显的组织学特征。植物材料具有刚性双层细胞壁的特征外观，而种子和豆类中则可见含有营养物质的刚性规则分隔。含淀粉的小扁豆呈现出清晰的间隙。以下是对每个处理和染色标本的一些重要组织学发现的简要描述。
因此，对蔬菜和豆类组织学结构的研究将有助于在口腔活检样本中轻松识别它们，并有助于将它们与其他病理情况和假象区分开来。
