A short-term assessment of angulated abutments for the implant denture restorations in posterior teeth

doi:10.3969/j.issn.2095-4344.2014.07.007

Abstract

Abstract:

BACKGROUND: As the rapid development of oral implantation and restoration techniques, as well as the increasing enlargement of indications, angulated abutments have been widely used. Posterior teeth region, as the weight-loading region of occlusion, can bear great force from the implants, the assessment of angulated abutments in posterior teeth region has clinical value.
OBJECTIVE: To evaluate the short-term clinical efficacy of angulated abutments on the implant denture in posterior teeth region.
METHODS: From January 2008 to January 2013, 114 patients with 175 ITI implants in the posterior teeth region were included in this study and they all underwent single-crown restoration. The involved patients were divided into angulated abutment group and straight abutment group. Periodontal probing depth, modified plaque index, modified sulcus bleeding index and peri-implant crestal bone loss in two groups were recorded at 6 months and 2 years after restoration. Cumulative survival rate of the implant denture was calculated by life-table analysis.
RESULTS AND CONCLUSION: There was no significant difference in periodontal probing depth, modified plaque index, and modified sulcus bleeding index between two groups (P > 0.05). The annual crestal bone loss showed no significant difference between two groups (P > 0.05). Moreover, the 5-year cumulative survival rate with 15° and 20° abutments was 95.6%, and that with straight abutment was 96.4%. The angle of abutments has no correlation with peri-implant soft tissue and peri-implant crestal bone loss, implant restorations with 15° and 20° angulated abutments may be successfully used in the posterior region, whereas the long-term effects need further research.

中国组织工程研究杂志出版内容重点：组织构建；骨细胞；软骨细胞；细胞培养；成纤维细胞；血管内皮细胞；骨质疏松；组织工程

全文链接：

Key words: dental implants, dental abutments, alveolar bone loss, life tables

CLC Number:

R318

Feng Wei, Geng Jin-you, Sun Yuan-yuan, Geng Hai-xia . A short-term assessment of angulated abutments for the implant denture restorations in posterior teeth[J]. Chinese Journal of Tissue Engineering Research, 2014, 18(7): 1021-1026.

Figures/Tables 3

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