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目的:分析树脂暂时冠戴冠后并发牙龈炎的原因,探讨减少牙龈炎、保护牙周组织的措施。方法:选择患者183例,共296件树脂暂时冠,戴冠1周后。对患者进行牙周状况和修复体的检查。结果:有68件树脂暂时冠发生牙龈炎症,其中修复体边缘不合要求者24件,占35.2%;粘接材料龈沟内残留者15件,占22.1%;邻接关系不良者15件,占22.1%;修复体外形不合要求者11件,占16.2%;差异均具有统计学意义(P<0.01);另有暂时冠局部无明显异常者3件,占4.4%。结论:暂时冠边缘不合要求、粘接材料龈沟内残留、邻接关系不良、修复体外形不合要求是导致牙龈炎症的主要原因,对暂时冠材料过敏也可能是原因之一。预防牙龈炎症,暂时冠制作时应注意修复体边缘及外形、修复体与邻牙的邻接关系,粘接完成后应尽量去除残留于龈沟内的粘接材料。
OBJECTIVE: To analyze the causes of gingivitis caused by temporary crowns after resin crowding, and to explore ways to reduce gingivitis and protect periodontal tissues. Methods: 183 patients were selected, a total of 296 resin temporary crown, crown after 1 week. The patient was examined for periodontal status and prosthesis. Results: There were 68 resin crowns for the first time with gingival inflammation, of which 24 were marginal unsatisfied prostheses, accounting for 35.2%; 15 were remaining in the gingival sulcus, accounting for 22.1%; 15 were bad adjuvant, accounting for 22.1 %. There were 11 cases (16.2%) with unsatisfactory appearance of prosthesis. The differences were statistically significant (P <0.01). There were 3 cases with no obvious abnormalities in the crown, accounting for 4.4%. CONCLUSION: The temporary crown edge is not satisfactory, the adhesive material remains in the sulcus, and the adjacent relationship is poor. The abnormal shape of the prosthesis is the main cause of gingival inflammation, and may be one of the reasons for the temporary crown material allergy. Preventive gingival inflammation, temporary crown production should pay attention to the edge and shape of prosthesis, prosthesis and adjacent abutments, the adhesive should be completed to remove residues in the gingival sulcus after bonding material.