Changes of bone mass after immediate implant in maxillary anterior region: whether horizonal resorption affects the osseointegration of implants

doi:10.3969/j.issn.2095-4344.2014.24.011

Abstract

Abstract:

BACKGROUND: Currently a large number of animal experiments and clinical studies have confirmed that, both immediate implants and delayed implants achieve successful osseointegration, but whether immediate implants can reduce or prevent physiological bone resorption of extracted teeth crypt alveolar crest has been the focus of debates among scholars.
OBJECTIVE: To evaluate the recent changes of immediate implant bone in anterior maxilla by the use of cone-beam CT.
METHODS: Eighteen patients with 18 maxillary anterior teeth that can not be reserved were treated with immediate implantation, and were included in the study. On the surgery day, postoperative 6 months and 1 year, the patients were detected with cone-beam CT. The bone wall thickness at the lingual side of alveolar crest at 4 mm, 6 mm, 8 mm away from the implant shoulder was measured. The bone height at the lingual-buccal side of missing teeth alveolar crest was also recorded.
RESULTS AND CONCLUSION: At 6 months after surgery, the bone height at the lingual-buccal side of missing teeth alveolar crest was (1.83±0.05) mm and (1.50±0.04) mm, the bone resorption at the lingual side of alveolar crest at 4 mm, 6 mm, 8 mm away from the implant shoulder was (1.72±0.30) mm, (1.65±0.26) mm, (1.55±0.25) mm, respectively. At 1 year, the bone height at the lingual-buccal side of missing teeth alveolar crest was (0.85± 0.04) mm and (0.78±0.05) mm, the bone resorption at the lingual side of alveolar crest at 4 mm, 6 mm, 8 mm away from the implant shoulder was (0.52±0.20) mm, (0.45±0.16) mm, (0.32±0.15) mm, respectively. Immediate implant may induce horizontal resorption at the lingual side bone wall, but has no impact on the osseointegration of the implant, and the bone resorption is stable 1 year later.

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 implantation, immediate dental implant loading, synostosis, alveolar bone loss, tomography, X-ray computed

CLC Number:

R318

Ye Bin, Lin Zhen-yan, Xie Li-li, Sun Lei, Gao Yong-bo . Changes of bone mass after immediate implant in maxillary anterior region: whether horizonal resorption affects the osseointegration of implants[J]. Chinese Journal of Tissue Engineering Research, 2014, 18(24): 3835-3839.

Figures/Tables 2

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