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KMID : 0362720170550110766
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Journal of the Korean Dental Association
2017 Volume.55 No. 11 p.766 ~ p.776
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Effect of neck design on peri-implant tissue responses in external connection type implant : a prospective pilot clinical study
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Bae Eun-Bin
Lee So-Hyoun
Jeon Young-Chan
Kang Eun-Sook
Park Sang-Rye
Lee Jin-Ju
Huh Jung-Bo
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Abstract
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This clinical study was conducted to evaluate the clinical effects of a concave neck of external connection type implant fixture designed for platform switching on the peri-implant tissue responses. Two types of implants with different neck designs were implanted in 20 patients. For the experimental group, the bioseal(BS) implant fixtures with ‘s’ shaped concave profile on the neck were used, and non-bioseal(NBS) implant fixtures with a straight profile on the neck were used as control(Total of 40 implants, NBS: n = 19, BS: n=21). During the one-year period after implant placement, implant survival rate, marginal bone resorption, bleeding, plaque, and complications were evaluated. The survival rate of NBS and BS group was 94.74% and 90.48%, respectively. There was no significant difference on marginal bone resorption, bleeding and plaque between the two groups (P>.05). Within the limits of the present study, implants with a concave neck design showed similar clinical results to implants with a straight neck design on the peri-implant tissue responses. Longitudinal clinical studies are necessary to confirm more effective clinical results.
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KEYWORD
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implant neck design, platform switching, biological width, marginal bone resorption, peri-implant tissue
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