Volume gain and stability of peri-implant tissue following bone and soft tissue augmentation: 1-year results from a prospective cohort study

牙冠(牙科) 软组织 植入 医学 牙科 十二指肠大乳头 佩里 口腔正畸科 外科 内科学
作者
David Schneider,Ueli Grunder,Andreas Ender,Christoph H. F. Hämmerle,Ronald E. Jung
出处
期刊:Clinical Oral Implants Research [Wiley]
卷期号:22 (1): 28-37 被引量:168
标识
DOI:10.1111/j.1600-0501.2010.01987.x
摘要

Objectives: The aim of the present study was to evaluate the dimensional changes of peri-implant tissues obtained by implant placement, bone and soft tissue augmentation, prosthetic reconstruction and 1 year of function using a new, non-invasive method for volumetric measurements. Materials and Methods: In 16 patients, the missing central or lateral maxillary incisor was reconstructed with an implant-supported single crown. Impressions were taken before (t1), after implant placement with guided bone regeneration using DBBM and a PTFE membrane (t2), after soft tissue augmentation (t3), immediately after crown placement (t4) and 1 year later (t5). The cast models were optically scanned and digitally superimposed allowing qualitative and quantitative analysis of alterations of the labial peri-implant tissue contour. In addition, the crown length and papilla height were measured at crown placement (t4) and after 1 year (t5). Results: Fifteen patients were available for recall after 1 year. During therapy, a mean gain in distance in the labial direction of 1.27±0.67 mm was observed after the surgical procedures. One year after crown insertion, a mean loss of 0.04±0.31 mm in the labial direction was recorded. During the same period, the crown length increased by a mean of 0.22±0.57 mm and the papilla height by 0.07±0.61 mm. The degree and pattern of tissue change following crown insertion were highly variable between individuals, irrespective of the amount and quality of previously augmented tissues. Conclusions: The clinical procedures were effective in augmenting peri-implant tissue volume that remained stable to a high degree within 1 year after crown insertion. Large inter-individual variations regarding the tissue alterations were observed. To cite this article: Schneider D, Grunder U, Ender A, Hämmerle CHF, Jung RE. Volume gain and stability of peri-implant tissue following bone and soft tissue augmentation: 1-year results from a prospective cohort studyClin. Oral Impl. Res. 22, 2011; 28–37.doi: 10.1111/j.1600-0501.2010.01987.x
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