Bennett J W, Kapatkin A S, Marretta S M
Department of Surgery, Animal Medical Center, New York, NY 10021.
Vet Surg. 1994 May-Jun;23(3):190-4. doi: 10.1111/j.1532-950x.1994.tb00471.x.
Twenty-one mandibular fractures in 11 cats and 6 dogs were repaired during a 20-month period. A new technique using dental composite was used to stabilize the mandible. The canine teeth were pumiced, acid etched, and aligned with dental composite, leaving the mouth opened approximately 1 cm. Six weeks after surgery the composite was removed so that radiographs of the mandible could be made with the animal under general anesthesia. In 1 dog in which the fracture had not healed, the composite was replaced. The composite broke before 6 weeks in 8 animals; 2 required replacement of the dental composite. There were no other complications. The median time for fracture healing was 6 weeks. All fractures healed with anatomic dental occlusion. The advantages of this technique are that no further damage is caused to the teeth or to the blood supply of the bone, the occlusion is anatomic, dermatitis (which is seen with tape muzzles) is not a complication, and the technique is easy to use in brachycephalic breeds, cats, and animals with poor bone quality. The limiting factor of this technique is that it does require four salvageable canine teeth. This repair technique is still a viable option even if one or more of the canine teeth are fractured. Dental composite stabilization is fast, easy, inexpensive, and, in our series, it was 100% effective for the repair of mandibular fractures.
在20个月的时间里,对11只猫和6只狗的21处下颌骨骨折进行了修复。采用一种使用牙科复合材料的新技术来稳定下颌骨。对犬齿进行打磨、酸蚀,并用牙科复合材料对齐,使嘴巴张开约1厘米。术后6周取出复合材料,以便在动物全身麻醉下拍摄下颌骨的X光片。在1只骨折未愈合的狗中,更换了复合材料。8只动物的复合材料在6周前断裂;2只需要更换牙科复合材料。没有其他并发症。骨折愈合的中位时间为6周。所有骨折均实现解剖学上的牙齿咬合愈合。该技术的优点是不会对牙齿或骨血供造成进一步损伤,咬合是解剖学上的,不会出现皮炎(使用胶带嘴套时会出现),并且该技术在短头品种、猫和骨质较差的动物中易于使用。该技术的限制因素是确实需要四颗可保留的犬齿。即使一颗或多颗犬齿骨折,这种修复技术仍然是一个可行的选择。牙科复合材料固定快速、简便、廉价,并且在我们的系列研究中,它对下颌骨骨折修复的有效率为100%。