专业术语—口腔生理学术语O1(英文详解

（单词翻译:单击）

    Occlusal wear - loss of enamel¹ on the biting surface of the teeth due to the abrasive² action of chewing natural unprocessed food.

    Odontoblast process - the extension of the cy lasm of an odontoblast which remains³ surrounded by dentine during tooth formation. The process is still an active part of the cell and contributes to the production of intratubular dentine in response to ageing, tooth wear or arrested caries.

    Odontoblasts- cells lining⁴ the dental pulp⁵, derived⁶ from the dental papilla wich form the dentine of the tooth crown and root. New odontoblasts may become differentiated⁷ from less specialised pericytes in the pulp.

    Occlusal interference - contact between opposing teeth during chewing, which prevents the other teeth touching⁸. In extreme lateral⁹ and protrusive¹⁰ positions of the jaw¹¹, this would happen in most dentitions and be of no concern. When occlusal interference occurs close to the area of maximum tooth contact, it may be troublesome.

    Oncogenes - genes¹² which have the capacity if expressed to cause tumour¹³ formation.

    Organelle - a structures within a cell which has a specific structure or function, such as thenucleus, endoplasmic reticulum, golgi apparatus¹⁴, lysosomes and mitochondria.. Cell organelles are a feature of eucaryotic cells.