14牙周牙髓联合病变牙周牙髓联合病变Periodontal-Endodontic Combined Lesions14-1 牙周组织和牙髓的解剖通道牙周组织和牙髓的解剖通道Anatomical Interrelations of Peridontium and Pulp根尖孔根尖孔 Apical foramen1根管侧支根管侧支Lateral root canal或副根管或副根管Accessory canal根尖1/3处最多根分叉区20-60%有234 The pulp was non-vital and the tooth was endodontically treated.After prosthetic therapy 5The pulp was non-vital and the tooth was endodontically treated.After prosthetic therapy(c),the 2-year follow-up radiograph in(d)shows bone fill in the previous angular bony defect,
