Table 1.

Excluded clinical studies at the second stage of selection and the reason for exclusion

Publication	Reason for exclusion
Lavigne et al. [63]	Experimental sites without BOP at baseline
Ciancio et al. [64]	Homecare plaque control protocol
Felo et al. [65]	Homecare plaque control protocol
Bach et al. [66]	Lack of clinical data defined for the present systematic review
Dörtbudak et al. [67]	Lack of a conventional control treatment
Khoury and Buchmann [68]	Changes in mucosal inflammation not reported
Roos-Jansaker et al. [69]	Observational study
Duarte et al. [70]	Observational study reporting on the same study population as [71]
Maximo et al. [71]	Observational study
Ramberg et al. [72]	Homecare plaque control protocol
Corbella et al. [73]	Prevention of peri-implant diseases
Heitz-Mayfield et al. [74]	Homecare plaque control protocol
Costa et al. [5]	Observational study
De Angelis et al. [75]	Lack of subgroup analyses
Salvi et al. [76]	Observational study
Deppe et al. [59]	Observational study
De Siena et al. [77]	Homecare plaque control protocol
McKenna et al. [78]	Case definition not reported
Flichy-Fernandez et al. [79]	Cross-over study design