[牙合]贴面修复早期隐裂牙的3年临床效果观察  

The clinical effect of occlusal veneer on early cracked teeth in 3 years

作　　者：邵丽梅 张文云 苏军 唐明亮 杨丽 SHAO Li-mei;ZHANG Wen-yun;SU Jun;TANG Ming-liang;YANG Li(Department of Stomatology,920th Hospital of Joint Logistics Support Force,PLA,Kunming 650032,China)

机构地区：[1]中国人民解放军联勤保障部队第九二〇医院口腔科,昆明650032

出　　处：《口腔颌面修复学杂志》2022年第4期267-271,共5页Chinese Journal of Prosthodontics

基　　金：中国人民解放军联勤保障部队第九二〇医院应用基础研究计划成长项目(项目编号:2019YGB16)。

摘　　要：目的:评价[牙合]贴面修复早期隐裂牙的临床效果,为早期隐裂牙提供一种更微创且有效的修复方式。方法:对符合纳入标准的34例患者的37颗隐裂牙(包括上颌磨牙15颗,前磨牙8颗;下颌磨牙12颗,前磨牙2颗)进行[牙合]贴面牙体预备,[牙合]面均匀预备修复空间约1.2 mm,边缘围绕[牙合]面在牙釉质范围内预备一圈圆直角肩台,肩台与四个轴面间的夹角为圆弧形,肩台宽度和高度均为1 mm,1-2周后进行[牙合]贴面戴牙,戴牙后每半年复诊,持续3年进行随访观察,每次复诊均由同一医生操作,参照美国公共卫生署USPHS修正标准对修复体的完整度、边缘密合性、继发龋和食物嵌塞情况进行评价,并统计完全成功率(患牙成功颗数/患牙总颗数)、功能成功率[(患牙成功颗数+失败但可再次修复颗数)/患牙总颗数]和失败率(患牙失败且不可再次修复颗数/患牙总颗数)。结果:37颗患牙中,1颗患牙1年后失访、1颗患牙在修复4个月后出现牙髓炎症状,失访患者不再统计其临床效果,出现牙髓炎症的患牙给予开髓并行根管治疗后全冠修复,修复后3年内有1颗患牙食物嵌塞评价为C级,其余34颗患牙的所有评价均为A级。随访的36颗患牙完全成功率为94.44%,功能成功率为100%,失败率为0。结论:[牙合]贴面修复早期隐裂牙能取得理想的修复效果,具有一定的临床意义。Objective:To evaluate the clinical effect of occlusal veneer on early cracked teeth,and to provide a more minimally invasive and effective way of restoration for early cracked teeth.Methods:37 cracked teeth(including 15maxillary molars and 8 premolars,12 mandibular molars,2 mandibular premolars)were collected from 34 patients who met the inclusion criteria,dental preparation was performed for occlusal veneer,occlusal preparation of the restoration space was about 1.2 mm,and a circle of rectangular shoulder was prepared within the range of enamel around the edge of occlusal surface,the angle between the shoulder and the four axial planes was a circular arc,the width and height of the shoulder were 1mm.1-2 weeks later,occlusal veneers were repaired.Follow-up observation lasted for 3 years.Just one doctor performed each follow-up visit.The completion,edge adaptation,secondary caries and food impaction of the prosthetics were evaluated according to American USPHS modified criteria.The complete success rate(the number of successful teeth/the total number of teeth),functional success rate(the number of successful teeth+the number of failed teeth that could be repaired again/the total number of teeth)and failure rate(the number of failed teeth that could not be repaired again/the total number of teeth)were calculated.Results:Among the 37 affected teeth,1 tooth was lost to follow-up after 1 year,1 tooth presented pulpitis symptoms after 4 months,the clinical effect of lost follow-up patients was no longer observed,and the affected teeth with pulpitis were given full crown restoration after root canal treatment,and within 3 years after restoration,1 tooth was evaluated as grade C for food impaction,and the rest were all evaluated as grade A.Among the 36 prosthesis,the complete success rate was 94.44%,the functional success rate was 100%,and the failure rate was 0.Conclusion:Occlusal veneers can achieve satisfactory clinical results in early cracked teeth,and has certain clinical significance.

关 键 词：[牙合]贴面 隐裂牙 修复 

分 类 号：R783.3[医药卫生—口腔医学]