Table 6.

Time-wise comparison of OR and sonic toothbrushes. OR, oscillating–rotating; RMNPI, Rustogi Modified Naval Plaque Index; TMQH, Turesky modified Quigley–Hein plaque index.

Follow-Up Time	Interproximal Plaque Reduction	Reference
1 day	9.1 mg less remaining wet weight interproximal plaque for sonic toothbrush than OR toothbrush	Sjögren et al. (2004) [21]
	0.097 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush	Goyal et al. (2021) [34]
4 days	0.237 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush	Strate et al. (2005) [23]
1 week	0.053 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush	Goyal et al. (2021) [34]
8 days	11.2 mg less remaining wet weight interproximal plaque for sonic toothbrush than OR toothbrush	Sjögren et al. (2004) [21]
	0.09 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush (at up to 8 days)	Sharma et al. (2005) [22]
12 days	0.16 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush	Biesbrock et al. (2008) [25]
2 weeks	0.1952 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush	Biesbrock et al. (2007) [24]
	9.52% greater TMQH reduction for sonic toothbrush than OR toothbrush	Putt et al. (2008) [26]
3 weeks	0.096 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush	Biesbrock et al. (2007) [24]
4 weeks	0.77 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush	Klukowska et al. (2013) [28]
6 weeks	0.043 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush	Klukowska et al. (2012) [27]
	0.024 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush	Klukowska et al. (2014a) [29]
	0.07 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush	Klukowska et al. (2014b) [30]
8 weeks	0.079 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush	Ccahuana-Vasquez et al. (2015) [31]
	0.134 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush	Adam et al. (2020) [33]
12 weeks/3 months	0.076 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush	Klukowska et al. (2012) [27]
	0.085 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush	Klukowska et al. (2013) [28]
	0.035 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush	Klukowska et al. (2014a) [29]
	Between 0.026 and 0.032 greater interproximal RMNPI reduction for two different sonic toothbrushes than OR toothbrush	Lv, Guo and Ling (2018) [32]
6 months	Between 0.026 and 0.032 greater interproximal RMNPI reduction for two different sonic toothbrushes than OR toothbrush	Lv, Guo and Ling (2018) [32]
	0.096 greater interproximal RMNPI reduction for OR toothbrush than sonic toothbrush	Goyal et al. (2021) [34]