# Factors Influencing Appliance Wearing Time during Orthodontic Treatments: A Literature Review
## 4 Results and Discussion
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline
**Study** & **Setting Description** & \begin{tabular}{c} **Description** \\ **of the Participants** \\ \end{tabular} & \begin{tabular}{c} **Sample** \\ **Size** \\ \end{tabular} & **Variables** & \begin{tabular}{c} **Outcome** \\ **Data** \\ \end{tabular} & \
\begin{tabular}{c} **Statistical** \\ **Analysis** \\ \end{tabular} &
\begin{tabular}{c} **Overall** \\ **Quality** \\ **(0–6)** \\ \end{tabular} \\ \hline [PERSON] et al., 2016 [12] & + & + & + & + & \(-\) & \(-\) & 4 \\ [PERSON] et al., 1993 [3] & \(-\) & + & + & \(-\) & + & + & 4 \\ [PERSON] et al., 1999 [9] & + & + & + & \(-\) & \(-\) & \(-\) & 3 \\ [PERSON] et al., 2005 [13] & \(-\) & \(-\) & \(-\) & + & + & + & 3 \\ [PERSON] et al., 2007 [14] & + & + & + & + & + & \(-\) & 5 \\ [PERSON] et al., 2006 [15] & + & + & + & + & \(+\) & \(-\) & 5 \\ [PERSON] et al., 2017 [16] & + & + & + & + & \(+\) & \(-\) & 5 \\ [PERSON] et al., 2007 [4] & + & + & \(-\) & \(-\) & + & + & 4 \\ [PERSON] et al., 1990 [17] & + & + & + & \(-\) & + & + & 5 \\ [PERSON] et al., 2021 [18] & + & \(-\) & + & \(-\) & + & + & 4 \\ [PERSON] et al., 2000 [19] & + & + & + & + & + & + & 6 \\ [PERSON] et al., 1990 [20] & + & + & + & \(-\) & \(-\) & \(-\) & 3 \\ [PERSON] et al., 2019 [8] & + & + & \(-\) & \(-\) & \(-\) & \(-\) & 2 \\ [PERSON] et al., 2018 [21] & \(-\) & \(-\) & + & + & + & + & 4 \\ [PERSON] et al., 2021 [22] & + & - & + & - & + & + & 4 \\ [PERSON] et al., 2019 [23] & + & + & + & - & + & - & 4 \\ [PERSON] et al., 2020 [24] & + & - & + & + & + & + & 5 \\ [PERSON] et al., 2021 [25] & + & - & + & + & + & + & 5 \\ [PERSON] et al., 2015 [26] & \(-\) & + & \(-\) & + & + & \(-\) & 3 \\ [PERSON] et al., 2008 [27] & + & + & \(-\) & \(-\) & \(-\) & \(-\) & 2 \\ [PERSON] et al., 2015 [28] & + & + & + & + & + & + & 6 \\ [PERSON] et al., 2016 [29] & + & + & + & + & \(-\) & + & 5 \\ [PERSON] et al., 2013 [30] & + & + & + & + & \(-\) & \(-\) & 4 \\ [PERSON] et al., 1992 [1] & + & + & + & \(-\) & + & + & 5 \\ [PERSON] et al., 2005 [31] & + & + & + & \(-\) & + & + & 5 \\ [PERSON] et al., 1985 [32] & + & + & \(-\) & \(-\) & + & \(-\) & 3 \\ [PERSON] et al., 2011 [33] & + & + & + & + & + & \(-\) & 5 \\ [PERSON] et al., 2013 [34] & \(-\) & + & \(-\) & \(-\) & + & + & 3 \\ [PERSON] et al., 2012 [7] & + & + & + & \(-\) & + & + & 5 \\ [PERSON] et al., 1998 [35] & \(-\) & \(-\) & \(-\) & + & \(-\) & + & 2 \\ [PERSON] et al., 2005 [11] & + & + & \(-\) & \(-\) & + & + & 4 \\ [PERSON] et al., 2010 [36] & \(-\) & + & \(-\) & \(-\) & \(-\) & + & 2 \\ [PERSON] et al., 1998 [37] & + & + & + & \(-\) & \(-\) & \(-\) & 3 \\ [PERSON] et al., 2006 [10] & + & + & + & \(-\) & + & + & 5 \\ [PERSON] et al., 2016 [38] & \(-\) & \(-\) & \(-\) & + & + & + & 3 \\ [PERSON] et al., 2021 [39] & + & + & + & + & + & + & 6 \\ [PERSON] et al., 2014 [40] & \(-\) & \(-\) & \(-\) & + & + & + & 3 \\ [PERSON] et al., 2009 [41] & \(-\) & + & \(-\) & \(-\) & + & \(-\) & 3 \\ [PERSON] et al., 2014 [42] & + & + & + & \(-\) & \(-\) & \(-\) & 3 \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Methodological assessment of the included studies. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Authors** & **Year** & **Country** & **Type of Study** & **Sample** & **Conclusions** \\ \hline [PERSON] et al. [12] & 2016 & Italy & Prospective cohort study & 30 patients & Monitoring systems may be a valuable means of providing a dentist with objective information regarding their patients’ compliance. \\ \hline [PERSON] et al. [3] & 1993 & Germany & Prospective cohort study & 77 patients & Better compliance was found in patients who felt accepted and comfortable during the treatment session. \\ \hline [PERSON] et al. [9] & 1999 & USA & Retrospective cross-sectional study & 140 patients & Developing an objective assessment of factors that influence orthodontic treatment duration may be important for increasing the understanding of treatment time variation. \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Summary of included studies.