Methods Deep class V cavities were prepared on the buccal surface of 60 premolars and molars of 3 mini pigs.

• 方法在小型猪磨牙及前磨牙上备洞,分别涂布4种牙本质粘接剂,玻璃离子充填,术后1d、3d、7d取牙髓组织进行组织病理学观察。