Radiographic evaluation of marginal bone levels adjacent to parallel-screw cylinder machined-neck implants and rough-surfaced microthreaded implants using digitized panoramic radiographs

被引：57

作者：

Nickenig, Hans-Joachim ^{[1
]}

Wichmann, Manfred ^{[1
]}

Schlegel, Karl Andreas ^{[2
]}

Nkenke, Emeka ^{[2
]}

Eitner, Stephan ^{[1
]}

机构：

[1] Univ Hosp Erlangen, Dept Prosthodont, G-91054 Erlangen, Germany

[2] Univ Hosp Erlangen, Dept Oral & Maxillofacial Surg, G-91054 Erlangen, Germany

来源：

CLINICAL ORAL IMPLANTS RESEARCH | 2009年 / 20卷 / 06期

关键词：

alveolar bone loss; split-mouth study; surface properties; CRESTAL BONE; TITANIUM IMPLANTS; HISTOMETRIC EVALUATION; SUBMERGED IMPLANTS; DENTAL IMPLANTS; CANINE MANDIBLE/; SMOKING; DOGS; MICROGAP; DESIGNS;

D O I：

10.1111/j.1600-0501.2008.01684.x

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The purpose of this split-mouth study was to compare macro- and microstructure implant surfaces at the marginal bone level during a stress-free healing period and under functional loading. From January to February 2006, 133 implants (70 rough-surfaced microthreaded implants and 63 machined-neck implants) were inserted in the mandible of 34 patients with Kennedy Class I residual dentitions and followed until February 2008. The marginal bone level was radiographically determined, using digitized panoramic radiographs, at four time points: at implant placement (baseline level), after the healing period, after 6 months of functional loading, and at the end of follow-up. The median follow-up time was 1.9 (range: 1.9-2.1) years. The machined-neck group had a mean crestal bone loss of 0.5 mm (range: 0-2.3) after the healing period, 0.8 mm after 6 months (range: 0-2.4), and 1.1 mm (range: 0-3) at the end of follow-up. The rough-surfaced microthreaded implant group had a mean bone loss of 0.1 mm (range: -0.4-2) after the healing period, 0.4 mm (range: 0-2.1) after 6 months, and 0.5 mm (range: 0-2.1) at the end of follow-up. The two implant types showed significant differences in marginal bone levels (healing period: P=0.01; end of follow-up: P < 0.01). Radiographic evaluation of marginal bone levels adjacent to machined-neck or rough-surfaced microthreaded implants showed that implants with the microthreaded design caused minimal changes in crestal bone levels during healing (stress-free) and under functional loading. To cite this article:Nickenig H-J, Wichmann M, Schlegel KA, Nkenke E, Eitner S. Radiographic evaluation of marginal bone levels adjacent to parallel-screw cylinder machined-neck implants and rough-surfaced microthreaded implants using digitized panoramic radiographs.Clin. Oral Impl. Res. 20, 2009; 550-554.doi: 10.1111/j.1600-0501.2008.01684.x.

引用

页码：550 / 554

页数：5

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