Comparative analysis of peri-implant marginal bone loss around two different implant neck design: a clinical study

doi:10.3877/cma.j.issn.1674-1366.2018.03.006

Abstract

Abstract:

Objective

To investigate the effect of smooth-and rough-neck design of implants on the marginal bone loss during healing period.

Methods

From August 2008 to March 2012, a total of 151 implants (Replace Select^TM Tapered or XiVE^TM S) were inserted in 137 subjects who visited the Department of Oral Implantology, Affiliated Hospital of Stomatology, Sun Yat-sen University, due to the first molar missing. The mean marginal bone loss (mMBL) of each implant was assessed with digital intraoral periapical radiograph, so that the effect of the two different neck designs above was evaluated, in which such factors as inserting site, diameter of implant and treatment phase were taken into account. The data were analyzed in statistical software (SPSS 19.0) .

Results

In phase 1, the mMBL in the rough-neck group[ (0.17 ± 0.01) mm]was lower than that in the smooth-neck group[ (0.80 ± 0.05) mm; F= 94.267, P<0.001]. In phase 2, on the contrary, the mMBL in the rough-neck group[ (0.59 ± 0.02) mm]was found to be higher than that in the smooth neck-group[ (0.34 ± 0.01) mm; F= 23.651, P<0.001]. From phase 1 to 2, the accumulated mMBL in the smooth neck group[ (1.14 ± 1.19) mm]was lower than that in the rough-neck group[ (0.75 ± 1.12) mm; F= 41.368, P<0.001]. There was no significant difference in mMBL between implants with different diameters or inserting sites (P>0.05) .

Conclusions

In phase 1, implants with a rough-neck design may help maintain the marginal bone level. Nevertheless, the bone level of implants with either a rough-or a smooth-neck design was found to decrease after the placement of abutment. The bone loss around the implants with a rough-neck design was higher than that with a smooth-neck design in phase 2. The change of marginal bone level was not related to the implant diameter, or the inserting site in this study.

Key words: Dental implants, Surface properties, Alveolar bone loss, Dental implant neck design

Yijie Fan, Yuan Li, Xiaowen Hu. Comparative analysis of peri-implant marginal bone loss around two different implant neck design: a clinical study[J]. Chinese Journal of Stomatological Research(Electronic Edition), 2018, 12(03): 169-175.

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Figures/Tables 6

References 33

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组别	品牌	颌位	直径(mm)	数量（颗）
组1	Replace Select^TM	下颌	4.3	58
组2	Replace Select^TM	上颌	4.3	28
组3	XiVE^TM	下颌	3.8	31
组4	XiVE^TM	下颌	4.5	34

组别	品牌	颌位	直径(mm)	数量（颗）
组1	Replace Select^TM	下颌	4.3	58
组2	Replace Select^TM	上颌	4.3	28
组3	XiVE^TM	下颌	3.8	31
组4	XiVE^TM	下颌	4.5	34

组别	愈合期	植入至永久修复
组1	0.75 ± 0.38	1.10 ± 0.36
组2	0.84 ± 0.25	1.18 ± 0.18
组3	0.16 ± 0.13	0.76 ± 0.18
组4	0.18 ± 0.11	0.75 ± 0.18

组别	愈合期	植入至永久修复
组1	0.75 ± 0.38	1.10 ± 0.36
组2	0.84 ± 0.25	1.18 ± 0.18
组3	0.16 ± 0.13	0.76 ± 0.18
组4	0.18 ± 0.11	0.75 ± 0.18

组别	愈合期		植入至永久修复期
组别	组1	组2	组1	组2
组3	0.60 ± 1.2^a	0.68 ± 1.2^a	0.34 ± 1.19^a	0.41 ± 1.10^a
组4	0.57 ± 1.2^a	0.66 ± 1.2^a	0.35 ± 1.19^a	0.43 ± 1.10^a

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