6-6 牙颈部龋切片

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6-5 牙颈部龋磨片

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6-4 牙本质龋切片

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6-3 龋洞形成后磨片-牙本质龋

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6-2 窝沟龋磨片

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6-1 平滑面龋磨片

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5-6 舌下腺

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5-5 颌下腺

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5-4 腮腺

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5-3 舌背黏膜

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