Abstract：
BACKGROUND: In the 21st century, we are surrounded by plastic, disposal of which has a detrimental effect on the environment. Around 700 million plastic toothbrushes are sold which contributes to a large portion of plastic waste. To aid in the restoration of the environment, there is a need to replace plastic toothbrushes with recyclable toothbrushes. The purpose of the study was to evaluate and compare the plaque removal efficacy of biodegradable toothbrushes and nonbiodegradable toothbrushes in children 8-10 years of age.
METHODS: Ninety children 8-10 years old from school were included in the study. Toothbrush types to groups A (nonbiodegradable toothbrush, Colgate® Palmolive India Ltd.), B (Biodegradable toothbrush, Bamboo India), and C (Biodegradable toothbrush, Palette™ India) were randomly allocated and plaque score was evaluated using plaque disclosing agent and Turesky Modification of Quigley Hein Index at day 1, 7, and 14. The data were analyzed using unpaired \"t\" and analysis of variance to find the significance of study parameters between the groups and paired t-test was used to find the significance of study parameters within the group (pre- and postbrushing).
RESULTS: The comparison of plaque scores pre- and postbrushing in all groups manifested reduction from day 1 to 14. However, Group B showed a significant reduction of plaque on day 14 with a difference of 0.50 which is statistically significant with a P < 0.001.
CONCLUSIONS: According to the results, it can be concluded that a biodegradable toothbrush has adequate plaque removal efficacy. Therefore, the use of biodegradable toothbrushes can be recommended which will reduce nonbiodegradable waste.
METHODS: Ninety children 8-10 years old from school were included in the study. Toothbrush types to groups A (nonbiodegradable toothbrush, Colgate® Palmolive India Ltd.), B (Biodegradable toothbrush, Bamboo India), and C (Biodegradable toothbrush, Palette™ India) were randomly allocated and plaque score was evaluated using plaque disclosing agent and Turesky Modification of Quigley Hein Index at day 1, 7, and 14. The data were analyzed using unpaired \"t\" and analysis of variance to find the significance of study parameters between the groups and paired t-test was used to find the significance of study parameters within the group (pre- and postbrushing).
RESULTS: The comparison of plaque scores pre- and postbrushing in all groups manifested reduction from day 1 to 14. However, Group B showed a significant reduction of plaque on day 14 with a difference of 0.50 which is statistically significant with a P < 0.001.
CONCLUSIONS: According to the results, it can be concluded that a biodegradable toothbrush has adequate plaque removal efficacy. Therefore, the use of biodegradable toothbrushes can be recommended which will reduce nonbiodegradable waste.
摘要：
背景：在21世纪，我们被塑料包围，其处置对环境有不利影响。大约有7亿个塑料牙刷被售出，这造成了很大一部分塑料垃圾。为了帮助恢复环境，需要用可回收牙刷代替塑料牙刷。该研究的目的是评估和比较8-10岁儿童的可生物降解牙刷和不可生物降解牙刷的牙菌斑清除功效。
方法：90名8-10岁的学校儿童被纳入研究。A组的牙刷类型（不可生物降解的牙刷，高露洁®棕榄印度有限公司)，B(可生物降解牙刷，竹子印度)，和C（可生物降解的牙刷，Palette™India）随机分配，并在第1、7和14天使用斑块显示剂和QuigleyHeinIndex的Turesky修饰评估斑块评分。使用非配对“t”和方差分析来分析数据，以发现组间研究参数的显著性，并使用配对t检验来发现组内研究参数的显著性（刷牙前和刷牙后）。
结果：所有组刷牙前和刷牙后的牙菌斑评分的比较显示从第1天到第14天降低。然而,B组在第14天显示斑块显著减少,差异为0.50,具有统计学显著性,P<0.001。
结论：根据结果，可以得出结论，可生物降解的牙刷具有足够的去除牙斑的功效。因此,建议使用可生物降解的牙刷，这将减少不可生物降解的废物。
方法：90名8-10岁的学校儿童被纳入研究。A组的牙刷类型（不可生物降解的牙刷，高露洁®棕榄印度有限公司)，B(可生物降解牙刷，竹子印度)，和C（可生物降解的牙刷，Palette™India）随机分配，并在第1、7和14天使用斑块显示剂和QuigleyHeinIndex的Turesky修饰评估斑块评分。使用非配对“t”和方差分析来分析数据，以发现组间研究参数的显著性，并使用配对t检验来发现组内研究参数的显著性（刷牙前和刷牙后）。
结果：所有组刷牙前和刷牙后的牙菌斑评分的比较显示从第1天到第14天降低。然而,B组在第14天显示斑块显著减少,差异为0.50,具有统计学显著性,P<0.001。
结论：根据结果，可以得出结论，可生物降解的牙刷具有足够的去除牙斑的功效。因此,建议使用可生物降解的牙刷，这将减少不可生物降解的废物。
