Objective: Study the effect of HBO on periodontal indices and plaque morphology in pocket bottom of human periodontitis with different pocket deep.

目的：探讨高压氧（HBO）对人不同牙周袋深度牙周炎患者牙周各临床指标和袋底菌斑形态的影响。

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A bagging experiment was conducted by using double paper bags, single paper bags (close and open of pocket bottom), plastic bags, and to not bagging as control.

采用双层袋、单层袋(下端封口和开口)、塑膜袋进行套袋处理，并以不套袋作为对照。

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A bagging experiment was conducted by using double paper bags, single paper bags (close and open of pocket bottom), plastic bags, and to not bagging as control.

采用双层袋、单层袋(下端封口和开口)、塑膜袋进行套袋处理，并以不套袋作为对照。

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