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目的 牙弓新分区将上下颌牙弓分为弓顶区、左右弓肩区和左右弓体区，本研究旨在比较采用牙弓新分区法指导下刷牙的牙菌斑清除效果。方法 选取医疗和护理专业实习大学生60名，随机分为试验组和对照组，每组各30人。所有受试者在试验前一晚及当天早晨不进行口腔清洁。对照组进行巴氏刷牙方法培训，不进行新分区刷牙指导，试验组则接受牙弓新分区的系统说明与刷牙指导，并按分区顺序完成刷牙。通过口腔扫描采集图像，通过图像分析技术测定并比较两组刷牙前后牙面改良菌斑指数（TMQHPI）值及菌斑清除率。结果 试验组和对照组全口牙列TMQHPI差值分别为10.47(10.38～10.54)和6.28(6.14～6.39)，差异有统计学意义（P<0.01）。菌斑清除率分别为58.13%(57.6%～58.5%)和34.83%(34.1%～35.4%)，差异具有统计学意义（P<0.01）。将每个分区进行比较时，各分区TMQHPI差值及菌斑清除率显示试验组显著优于对照组（P<0.01）。结论 牙弓新分区指导刷牙菌斑清除效果优于不分区刷牙，此分区刷牙方法值得推广。
Abstract：Objective The new zoning of the dental arch divides the maxillary and mandibular dental arches into the apex of the arch, the right and left shoulder of the arch, and the right and left body of the arch. The aim of the present study was to compare the effectiveness of plaque removal by brushing with the guidance of the new zoning method of the dental arch. Methods Sixty healthy adults were randomly assigned to an experimental or control group(30 each). All refrained from oral hygiene the night before and morning of the study. The control group received training in the Bass toothbrushing technique but did not receive instruction on the new segmented brushing method, while the experimental group followed standardized instructions for the new dental arch segmentation method. Intraoral scans were taken before and after brushing, and plaque removal was evaluated using TMQHPI scores and removal rates. Results After brushing, the mean TMQHPI reduction in the experimental group and control group was 10.47(10.38-10.54)and 6.28(6.14-6.39), respectively, with a statistically significant difference between the two groups(P < 0.01). The plaque removal rates were 58.13%(57.6%-58.5%)and 34.83%(34.1%-35.4%), respectively, with a statistically significant difference between the two groups(P < 0.01). Regional analyses also showed that the experimental group had significantly greater TMQHPI reductions and plaque removal rates in all segmented areas(P < 0.01). Conclusion A new dental arch partitioning method for guided tooth brushing removes plaque more effectively than non-partitioned brushing, making it a practice worth promoting.
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基本信息:
DOI：10.15956/j.cnki.chin.j.conserv.dent.2025.12.002
中图分类号:R78
引用信息:
[1]牛璐,戴雅文,王晟磊,等.牙弓新分区指导刷牙菌斑清除效果的比较研究[J].牙体牙髓牙周病学杂志,2025,30(12):691-695.DOI:10.15956/j.cnki.chin.j.conserv.dent.2025.12.002.
基金信息:
上海市虹口区卫生健康委员会科研课题面上项目（虹卫2302-46）
2025-04-09
2025
2025-08-01
2025
1
2025-12-28
2025-12-28