teeth model showing an implant crown bridge model. dental demonstration teeth study teach model. - 假牙 個照片及圖片檔義肢設備, 牙齒, 植牙
the dentist's hands explain the installation of the dental braces on the dental model. - 假牙 個照片及圖片檔牙箍, 牙科設備, 牙齒