当前位置： SCI文献检索 > CLINICAL ORAL IMPLANTS RESEARCH期刊下所有文献 > The effect of implant macro-thread design on implant stability in the early post-operative period: a randomized, controlled pilot study.

The effect of implant macro-thread design on implant stability in the early post-operative period: a randomized, controlled pilot study.

Abstract：

INTRODUCTION:Available literature suggests there is a transient drop in implant stability from approximately week 0 to week 3-4 as a result of peri-implant bone remodeling as it transitions from a primary, mechanical stability to a secondary, biological stability. Research investigating the influence of macro-thread design on this process is scant. AIM:The specific aim of this study was to evaluate the role of macro-thread design on implant stability in the early post-operative healing period using resonance frequency analysis (RFA). MATERIAL AND METHODS:Seven patients, each missing at least two posterior teeth in the same arch, were included in the study. Three patients qualified for four implants resulting in a total of 10 matched pairs. All sites were healed (>6 months), non-grafted sites with sufficient bone to place implants. Each site in a matched pair was randomly assigned to receive either a control (Megagen EZ Plus Internal; EZ) or test (Megagen AnyRidge; AR) implant. The test implant incorporates a novel thread design with a wide thread depth and increased thread pitch. RFA was used to determine implant stability quotient (ISQ) values for each implant at the time of placement and weekly for the first 8 weeks. RESULTS:Implants consistently achieved a relatively high insertion torque (30-45 N/cm) and high initial ISQ value (79.8 ± 1.49). Baseline ISQ values for test (AR; 79.55 ± 1.61) and control (EZ; 80.05 ± 1.37) implants were similar. A general pattern of stability from baseline through all eight follow-up evaluations was observed for the test implants. A pattern of decreasing ISQ values was observed for the control implants across the early follow-up evaluations up to week four, where the value plateaued. There was a statistically significant main effect due to implant type (P < 0.01) and a statistically significant interaction between implant type and time (P < 0.01), indicating that the test and control implants performed differently at certain time points. CONCLUSIONS:Within the limitations of this study, macro-thread design appears to play a role in implant stability in the early post-operative healing period as assessed by RFA. These findings may have important implications related to immediate or early loading protocols.

journal_name

Clin Oral Implants Res

journal_title

Clinical oral implants research

authors

McCullough JJ,Klokkevold PR

doi

10.1111/clr.12945

subject

Has Abstract

pub_date

2017-10-01 00:00:00

pages

1218-1226

issue

eissn

0905-7161

issn

1600-0501

journal_volume

pub_type

杂志文章,随机对照试验

在线工具

The effect of implant macro-thread design on implant stability in the early post-operative period: a randomized, controlled pilot study.