Collins L M, Dawes C
J Dent Res. 1987 Aug;66(8):1300-2. doi: 10.1177/00220345870660080201.
The surface area of the mouth was measured to calculate the average thickness of the salivary film which separates the opposing layers of the oral mucosa and which also overlies the dental plaque. The subjects were 10 adults of each sex, all of whom had essentially a full complement of teeth. Impressions were taken of the upper and lower jaws, the buccal and labial vestibular mucosa, and the ventral surface of the tongue, and stone models were cast. The dorsum of the tongue was assumed to have the same area as the palate plus that of the palatal surfaces of the upper teeth. The six separate areas considered were the teeth, the palate, the buccal and lingual gingival and alveolar mucosa, the buccal and labial vestibular mucosa, the ventral surface of the tongue, including the floor of the mouth, and the dorsum of the tongue. Aluminum foil, of known weight per unit area, was adapted to the models of the different regions of the mouth, and the surface areas were calculated from the weights of the foil. The mean total surface area of the mouth was 214.7 +/- 12.9 cm2, and there was no significant difference due to gender. The teeth, keratinized epithelium, and non-keratinized epithelium occupied about 20%, 50%, and 30% of the total surface area, respectively. Given that the average volumes of saliva present in the mouth before and after swallowing have been estimated to be 0.77 and 1.07 mL, respectively, it can be calculated that the average thickness of the salivary film in the mouth varies between 0.07 and 0.10 mm.(ABSTRACT TRUNCATED AT 250 WORDS)
测量口腔表面积以计算唾液膜的平均厚度，该唾液膜分隔口腔黏膜的相对层且覆盖牙菌斑。受试者为10名成年男性和10名成年女性，所有人牙齿基本齐全。取上下颌、颊侧和唇侧前庭黏膜以及舌腹面的印模，并灌制石膏模型。假定舌背面积与腭部面积加上上颌牙齿的腭面面积相同。所考虑的六个独立区域为牙齿、腭部、颊侧和舌侧牙龈及牙槽黏膜、颊侧和唇侧前庭黏膜、包括口腔底部的舌腹面以及舌背。将已知单位面积重量的铝箔贴合在口腔不同区域的模型上，并根据铝箔重量计算表面积。口腔平均总面积为214.7±12.9平方厘米，性别间无显著差异。牙齿、角化上皮和非角化上皮分别占总表面积的约20%、50%和30%。鉴于吞咽前后口腔中唾液的平均体积估计分别为0.77毫升和1.07毫升，由此可算出口腔中唾液膜的平均厚度在0.07至0.10毫米之间。（摘要截选至250字）
