Comparison of clinical efficacy between zirconia and Co-Cr alloy porcelain endocrown in restoring molars with large coronal destruction

WANG Nan; HOU Ai-bing; FAN Peng; XING Tian; ZHANG Su-mei; ZHENG He-yun

doi:10.16766/j.cnki.issn.1674-4152.002405

Volume 20 Issue 4

Apr. 2022

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Article Navigation > Chinese Journal of General Practice > 2022 > 20(4): 583-586

WANG Nan, HOU Ai-bing, FAN Peng, XING Tian, ZHANG Su-mei, ZHENG He-yun. Comparison of clinical efficacy between zirconia and Co-Cr alloy porcelain endocrown in restoring molars with large coronal destruction[J]. Chinese Journal of General Practice, 2022, 20(4): 583-586. doi: 10.16766/j.cnki.issn.1674-4152.002405

Citation:

WANG Nan, HOU Ai-bing, FAN Peng, XING Tian, ZHANG Su-mei, ZHENG He-yun. Comparison of clinical efficacy between zirconia and Co-Cr alloy porcelain endocrown in restoring molars with large coronal destruction[J]. Chinese Journal of General Practice, 2022, 20(4): 583-586. doi: 10.16766/j.cnki.issn.1674-4152.002405

Citation:

WANG Nan, HOU Ai-bing, FAN Peng, XING Tian, ZHANG Su-mei, ZHENG He-yun. Comparison of clinical efficacy between zirconia and Co-Cr alloy porcelain endocrown in restoring molars with large coronal destruction[J]. Chinese Journal of General Practice, 2022, 20(4): 583-586. doi: 10.16766/j.cnki.issn.1674-4152.002405

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Comparison of clinical efficacy between zirconia and Co-Cr alloy porcelain endocrown in restoring molars with large coronal destruction

doi: 10.16766/j.cnki.issn.1674-4152.002405

WANG Nan^{1, 2, 3}
, HOU Ai-bing^{1, 2, 3
,
,}
, FAN Peng^{1, 2, 3}
, XING Tian^{1, 2, 3}
, ZHANG Su-mei^{1, 2, 3}
, ZHENG He-yun^{1, 2, 3}

1.
Stomatological College of Anhui Medical University, Hefei, Anhui 230032, China

Funds:

1704f080025

Received Date: 2021-06-02
Available Online: 2022-08-20

Abstract

Abstract

Objective To investigate the clinical effect of zirconia and Co-Cr alloy porcelain endocrown in restoring molars with large coronal destruction. Methods Clinical data of 130 molars from 110 patients treated in the Department of General Dentistry of the Affiliated Stomatological Hospital of Anhui Medical University from June 2017 to December 2018 were selected and randomly divided into the zirconia and Co-Cr alloy porcelain endocrown groups. The zirconia endocrown group (Group A) with 67 molars (n=56) and the Co-Cr alloy porcelain endocrown (Group B) with 63 molars (n=54) were set using the random number table method. Follow-up was performed at 1 year after completion of restoration to evaluate the effect of the two types of material endocrown. The periodontal condition was compared between the two groups after 1-year treatment. Results During the 1-year recall period, 1 case of minor shortcomings in marginal adaptation and 1 case of slightly weak contact point without any restoration defect, tooth fracture and secondary caries were reported in the zirconia endocrown group. Meanwhile, 3 cases of minor shortcomings in marginal adaptation, 2 cases of slightly weak contact point, 1 case of restoration or tooth with slight defect and 1 case of secondary caries were reported in the Co-Cr alloy porcelain endocrown group. No statistically significant differences were found (all P>0.05). Periodontal probing depth, gingival sulcus bleeding index and gingival index were lower in group A than in group B [(2.08±0.10) mm vs. (2.14±0.14) mm; 0.12(0.04, 0.23) vs. 0.19(0.05, 0.34); 1.22±0.21 vs. 0.38±0.13, all P < 0.05]. Conclusion Zirconia endocrown is better than porcelain endocrown in restoring molars with large coronal destruction.
- Zirconia,
- Co-Cr alloy porcelain,
- Medullary cavity retentive crown,
- Molar defects

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References(22)

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Comparison of clinical efficacy between zirconia and Co-Cr alloy porcelain endocrown in restoring molars with large coronal destruction

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Comparison of clinical efficacy between zirconia and Co-Cr alloy porcelain endocrown in restoring molars with large coronal destruction

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