Removal of plaque biofilm by a 3D-printed precision pericoronal irrigator for impacted wisdom teeth: an <italic style="font-style: italic">in vitro</italic> study

WANG Xiaoting; HUANG Zhenxin; GUO Weiwei; SONG Jianye; ZHOU Liang; WEI Rouyi; WANG Kun

doi:10.16016/j.2097-0927.202411082

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Removal of plaque biofilm by a 3D-printed precision pericoronal irrigator for impacted wisdom teeth: an in vitro study

Biomedical Engineering | 更新时间：2025-04-14

- Removal of plaque biofilm by a 3D-printed precision pericoronal irrigator for impacted wisdom teeth: an in vitro study
- Journal of Army Medical University Vol. 47, Issue 7, Pages: 734-741(2025)
- 作者机构：
  
  1.陆军军医大学（第三军医大学）第二附属医院口腔科，重庆
  2.陆军特色医学中心（第三军医大学大坪医院）野战外科研究部第九研究室，重庆
- 作者简介：
  
  WANG Kun， E-mail： dentalimplants@163.com
- 基金信息：
  
  the Open Project of Chongqing Organ Intelligent Biomanufacturing Engineering Research Center(CQERC-OIBM20241013)
- DOI：10.16016/j.2097-0927.202411082
  CLC： R197.39;R780.1;R781.4
- Received：19 November 2024，
  
  Revised：15 February 2025，
  
  Published：15 April 2025
- 稿件说明：
移动端阅览
王晓婷,黄珍欣,郭维维,等.3D打印精准智齿冠周冲洗器清除菌斑的体外研究[J].陆军军医大学学报,2025,47(07):734-741.

in vitro study[J].J Army Med Univ,2025,47(07):734-741.
王晓婷,黄珍欣,郭维维,等.3D打印精准智齿冠周冲洗器清除菌斑的体外研究[J].陆军军医大学学报,2025,47(07):734-741. DOI：10.16016/j.2097-0927.202411082.

in vitro study[J].J Army Med Univ,2025,47(07):734-741. DOI：10.16016/j.2097-0927.202411082.WANG Xiaoting,HUANG Zhenxin,GUO Weiwei,et al.Removal of plaque biofilm by a 3D-printed precision pericoronal irrigator for impacted wisdom teeth: an

摘要

目的

研制一种冲洗头可直达阻生智齿冠周盲袋的精准化冲洗器，评估其对牙冠菌斑的清洁效能。

方法

3D打印4种不同面积比冠周软组织（0%、25%、50%、75%）覆盖的下颌智齿高位垂直阻生牙列模型及个性化精准智齿冠周冲洗器，不同覆盖面积比的模型随机分为3组，精准冠周冲洗组、常规冲洗组及刷牙组。分别在45、75 psi压强（1 psi=6 894.76 Pa）下，对有菌斑生物膜的阻生智齿试验牙面进行清洁，采用Python软件分析清洁前后牙面图像并计算清洁率。

结果

在45 psi压强下，智齿冠周软组织覆盖面积比为50%、75%时，精准冠周冲洗组清洁率均显著高于刷牙组和常规冲洗组（

0.05）；冠周软组织覆盖面积比为0%、25%时，精准冠周冲洗组与刷牙组清洁率显著高于常规冲洗组（

0.05）；在75 psi压强下，冠周4种不同面积比软组织覆盖时，精准冠周冲洗组清洁率均显著高于常规冲洗组和刷牙组（

0.05）。冠周软组织覆盖面积比为0%、25%及50%时，精准冠周冲洗组在75 psi压强下的清洁率显著高于在45 psi压强下的清洁率（

0.05）。

结论

精准冠周冲洗器对垂直阻生智齿的清洁效能显著优于常规冲洗器及刷牙，是一种有效预防及治疗冠周炎的装置。

Abstract

Objective‍　‍To prepare an advanced irrigation device equipped with a specialized nozzle designed to access the pericoronal blind sac of impacted wisdom teeth

and evaluate its efficacy in plaque removal. Methods‍　3D-printer was utilized to develop pericoronal models simulating mandibular wisdom teeth with high vertical impaction and varying soft tissue coverage (0%

25%

50%

and 75%

respectively) and personalized pericoronal irrigator. The obtained pericoronal models were randomly divided into 3 groups

treated with personalized precision pericoronal flushing

routine flushing and brushing

respectively

and

under a pressures of 45 psi or 75 psi （1 psi=6 894.76 Pa）

were performed to clean the test surfaces of plaque-biofilm-obstructed wisdom teeth

respectively. Images of the tooth surfaces were analyzed before and after cleaning

and the cleaning rate was calculated using Python software. Results‍　‍For wisdom teeth with 50% and 75% pericoronal soft tissue coverage

at a pressure of 45 psi

the precision pericoronal flushing group demonstrated significantly higher cleaning rate when compared to the brushing and routine flushing groups (

0.05). At 0% and 25% pericoronal soft tissue coverage

the precision pericoronal flushing and brushing groups exhibited significantly higher cleaning rates than the routine flushing group (

0.05). Furthermore

at 75 psi

the precision pericoronal flushing group achieved a significantly higher cleaning rate across all 4 levels of pericoronal soft tissue coverage than both the routine flushing and brushing groups (

0.05). Notably

the precision pericoronal flushing group

at 75 psi obtained significantly higher cleaning rate than at 45 psi across 0%

25%

and 50% pericoronal soft tissue coverage (

0.05). Conclusion‍　‍The precision pericoronal irrigation device demonstrates significantly superior cleaning efficacy for vertically impacted mandibular third molars compared to conventional irrigation devices and manual tooth brushing. It is an effective device for preventing and treating pericoronitis.

关键词

Keywords

references

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⁰

Removal of plaque biofilm by a 3D-printed precision pericoronal irrigator for impacted wisdom teeth: an in vitro study

DOI：10.16016/j.2097-0927.202411082

摘要

Abstract

关键词

Keywords

references