Gamm D J, Howard P E, Walia H, Nencka D J
Department of Endodontics, School of Dentistry, Marquette University, Milwaukee, WI 53233.
J Am Vet Med Assoc. 1993 Jan 1;202(1):63-70.
Prevalence and morphologic features of the apical delta in the canine teeth of dogs were determined to assist clinicians in the endodontic treatment of these teeth. Eighty-two canine teeth from mixed-breed dogs were cleared and dyed to outline root canal ramifications. Apical deltas were classified according to location in the dental arch, number of ramifications, and vertical extent of these ramifications from the apical terminus. A classification system was devised to aid in identification and treatment of the delta. Recommendations were made regarding indications for conventional and/or surgical endodontic therapy depending on the type of delta encountered. Apical deltas were detected in 69.5% of the canine teeth studied. Surgical endodontic intervention should be seriously considered when the delta is found to extend a distance > 1 mm from the apical terminus.
确定犬类犬齿根尖分歧的患病率和形态特征，以协助临床医生对这些牙齿进行牙髓治疗。对来自混种犬的82颗犬齿进行清理和染色，以勾勒出根管分支。根据在牙弓中的位置、分支数量以及这些分支从根尖末端的垂直延伸范围对根尖分歧进行分类。设计了一种分类系统，以帮助识别和治疗根尖分歧。根据所遇到的根尖分歧类型，对传统和/或外科牙髓治疗的适应症提出了建议。在所研究的犬齿中，69.5%检测到根尖分歧。当发现根尖分歧从根尖末端延伸超过1毫米时，应认真考虑进行外科牙髓干预。
