Department of Periodontology, Tufts University School of Dental Medicine, Boston, MA, USA
Department of Periodontology, Tufts University School of Dental Medicine, Boston, MA, USA.
J Dent Hyg. 2023 Aug;97(4):36-45.
Dental floss has been promoted reduce the effects from interdental microbial biofilm, however its efficacy has been questioned in the literature. The purpose of this study was to compare daily flossing instructions using an adapted horizontal vertical flossing technique (AHVFT) and routine oral hygiene on gingival inflammation as indicated by bleeding on probing (BoP). This randomized single-blinded controlled clinical trial was conducted with non-smoking adults presenting with gingivitis and no other systemic diseases. Eligible participants were recruited from a dental school patient population and were randomly assigned to one of two groups. Group A (experimental group) was instructed in how to use the AHVFT once daily and Group B (control group) was asked to continue with their regular oral hygiene practices. Clinical evaluations (interproximal BoP measurements) were performed by blinded, calibrated examiners at two, four, and eight-week intervals; the percentage of sites with interproximal BoP was recorded. Descriptive and inferential statistics were used to analyze the data. A total of 36 eligible participants were enrolled in the study: Group A (n=18), Group B (n=18). The mean (±SD) percentage of interproximal sites with BoP was 26.3 (±4.7), 8.6 (±7.3), 7.2 (±5.2), and 7.9 (±5.8) for Group A at baseline, two weeks, four weeks, and eight weeks, respectively. The corresponding values for Group B were 25.8 (±9.9), 15.6 (±12.4), 12.3 (±12.2), and 18.0 (±13.1), respectively. The percentage of sites with BoP was significantly lower for Group A than for Group B (=.015 at two weeks, =.009 at four weeks, and <.001 at eight weeks). Within each group, the percentage of sites with BoP was significantly lower when compared with baseline (<.008). At the final visit, the percent reduction in BoP for Group A was 70% and 30% for Group B compared with baseline. Most (88.2%) of Group A participants demonstrated mastery of the AHVFT at eight weeks. Participants who received Instruction with the daily use of the AHVFT were shown to have reductions in interproximal BoP as compared to participants who had not received instructions in the AHVFT. Positive gingival health outcomes with dental flossing may be technique sensitive.
牙线一直被宣传为可以减少牙间隙微生物生物膜的影响，但它的功效在文献中受到了质疑。本研究的目的是比较使用改良的水平垂直牙线技术（AHVFT）的日常牙线使用说明和常规口腔卫生对探诊出血（BoP）指示的牙龈炎症的影响。这是一项随机、单盲、对照的临床试验，纳入了无吸烟史且无其他系统性疾病的成年人。从牙科学院患者人群中招募符合条件的参与者，并将其随机分配到两组之一。A 组（实验组）接受如何使用 AHVFT 的指导，每天一次，B 组（对照组）继续进行常规口腔卫生。由盲法、经过校准的检查者在两周、四周和八周的时间间隔进行临床评估（探诊时近中探诊 BoP 测量）；记录近中探诊 BoP 的部位百分比。使用描述性和推断性统计分析数据。共有 36 名符合条件的参与者入组：A 组（n=18），B 组（n=18）。A 组基线时、两周时、四周时和八周时近中探诊 BoP 的平均（±SD）部位百分比分别为 26.3（±4.7）、8.6（±7.3）、7.2（±5.2）和 7.9（±5.8），B 组相应值分别为 25.8（±9.9）、15.6（±12.4）、12.3（±12.2）和 18.0（±13.1）。A 组的探诊 BoP 部位百分比显著低于 B 组（两周时为.015，四周时为.009，八周时<.001）。在每组内，与基线相比，探诊 BoP 部位百分比显著降低（<.008）。在最后一次就诊时，A 组的探诊 BoP 减少百分比为 70%，B 组为 30%，与基线相比。88.2%的 A 组参与者在八周时掌握了 AHVFT。与未接受 AHVFT 使用说明的参与者相比，接受 AHVFT 日常使用说明的参与者近中探诊 BoP 减少。使用牙线可能与技术敏感性有关，可带来积极的牙龈健康结果。
