名词
中文翻译：牙垫
同义词：
['dental dam', 'dental tray', 'dental impression material']
例句：
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1. The dentist used a dental pad to hold the patient's tooth in place during the procedure.
牙医使用牙垫来在手术过程中固定患者的牙齿。
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2. The patient was given a dental pad to protect the gums and surrounding tissue during the procedure.
患者在手术过程中被给予一个牙垫以保护牙龈和周围组织。
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3. The dentist explained that using a dental pad can help reduce the risk of infection during the procedure.
牙医解释说，使用牙垫可以帮助降低手术期间感染的风险。