Zirconia all-ceramic crown and porcelain fused to metal crown for dental defects: an 8-month follow-up of periodontal conditions

doi:10.3969/j.issn.2095-4344.2015.30.008

Abstract

Abstract:

BACKGROUND: Zirconia all-ceramic crown restoration has good biocompatibility and corrosion resistance, and has little irritation to the human periodontal tissue.

OBJECTIVE: To compare the clinical curative effects of zirconia all-ceramic and porcelain fused to metal crowns in the repair of dental defects.

METHODS: Twenty patients (120 teeth) scheduled for crown lengthening+crown repair were enrolled, including 7 males and 13 females, aged 19-60 years, and then randomly divided into observation group and control group. In the observation group, zirconia all-ceramic crown was used; and in the control group, porcelain fused to metal crown was used. Periodontal conditions, coordination of gingival margin height, and crown edge concealment were compared between the two groups at 8 months after restoration.

RESULTS AND CONCLUSION: At 8 months after restoration, the observation group had better periodontal conditions and crown edge concealment than the control group (P < 0.05), and the time of wearing a temporary crown and recovery time were also shorter in the observation group than the control group (P < 0.05). There was no significant difference in the gingival margin height between the two groups at 1, 3 and 8 months after restoration. These findings indicate that after crown lengthening, the zirconia all-ceramic restoration for dental defect repair has better therapeutic effects than the porcelain fused to metal restoration, which can have better marginal adaptation, improve crown edge concealment, reduce gingivitis, decrease plaque adhesion ability, and preferably maintain the periodontal health.

中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

CLC Number:

R318

Hu Fang. Zirconia all-ceramic crown and porcelain fused to metal crown for dental defects: an 8-month follow-up of periodontal conditions[J]. Chinese Journal of Tissue Engineering Research, 2015, 19(30): 4795-4799.

Figures/Tables 3

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