## 2 Materials and Methods
### Report (Baseline, 6 Months, 12 Months, 24 Months)
\begin{table}
\begin{tabular}{l c l} \hline \hline  & & **Modified USPHS/Ryge Criteria** \\ \hline \multirow{2}{*}{Secondary caries} & Alpha & No clinical diagnosis of caries along the margin of the restoration \\ \cline{2-3}  & Delta & Clinical diagnosis of caries \\ \hline \multirow{2}{*}{Tooth vitality} & Alpha & Positive \\ \cline{2-3}  & Delta & Negative \\ \hline \multirow{4}{*}{Postoperative sensitivity} & Alpha & No hypersensitivity \\ \cline{2-3}  & Bravo & Complaints only for a short time after placement, no treatment necessary \\ \cline{2-3}  & Charlie & Medium complaints, no treatment necessary \\ \cline{2-3}  & Delta & Permanent complaints, bearable, treatment planned \\ \hline \multirow{4}{*}{Filling integrity/fracture} & Alpha & No chipping, cracking or wear of the filling material \\ \cline{2-3}  & Bravo & Chipping (\textgreater{}100 \(\upmu\)m), crack formation, detectable with a probe \\ \cline{2-3}  & Charlie & Continuous crack formation, wear \textgreater{} 200 \(\upmu\)m \\ \cline{2-3}  & Delta & Bulk fracture of the restoration \\ \hline \multirow{4}{*}{Proximal contact} & Alpha & Contact is tight, and it is possible to place one metallic matrix band (50 \(\upmu\)m) between the restoration and the adjacent tooth \\ \cline{2-3}  & Bravo & Contact is slight, and it is possible to pass two metallic matrix bands (50 \(\upmu\)m), or contact is too strong (metallic matrix band cannot be placed) \\ \cline{2-3}  & Charlie & Contact is too slight, but no trauma of the papilla \\ \cline{2-3}  & Delta & Trauma of papilla (Food impaction) \\ \hline \multirow{4}{*}{Surface roughness} & Alpha & Surface is smooth, and the adjacent tissues showed no irritation \\ \cline{2-3}  & Bravo & Surface of the restoration is slightly rough or pitted but can be refinished \\ \cline{2-3}  & Charlie & Surface is deeply pitted or shows irregular grooves, which were not related to the natural anatomy and could not be refinished \\ \cline{2-3}  & Delta & Surface is fractured or flaking \\ \hline \multirow{4}{*}{Marginal adaptation} & Alpha & No visible evidence of a crevice along the margin into which an explorer will catch \\ \cline{2-3}  & Bravo & The explorer catches a crevice along the margin, but there is no exposure of dentin \\ \cline{2-3}  & Charlie & Visible evidence of a crevice with exposure of dentin or base \\ \cline{2-3}  & Delta & The restoration is fractured, mobile, or missing \\ \hline \multirow{4}{*}{Marginal discoloration} & Alpha & No existing marginal discoloration at all \\ \cline{2-3}  & Bravo & Presence of discoloration at the margins between the restoration and the tooth \\ \cline{2-3}  & Bravo & structure; discoloration does not penetrate along the margins of the restoration \\ \cline{2-3}  & Charlie & The discoloration penetrated along the margins in a pulpal direction \\ \hline \multirow{4}{*}{Color match} & Alpha & The restoration cannot be detected with a mirror \\ \cline{2-3}  & Bravo & The restoration is visible, but there is no mismatch in color, shade, and/or \\ \cline{2-3}  & Dravo & translucency between the restoration and the adjacent tooth structure \\ \cline{2-3}  & Charlie & There is a mismatch in color, shade, or translucency, but not outside the normal \\ \cline{2-3}  & Delta & The mismatch is outside the normal range of tooth color, shade, \\ \cline{2-3}  & and/or translucency \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Summary of the modified USPHS/Ryge criteria used for the clinical evaluation.