## 3 Results
### Assessment of Oral Status  
The data presented was collected from the clinical examination form registered by the dental student for pre-operative oral status assessment:  
* Protrusion: Through the measurement of the overjet, a percentage of 37% corresponded to the measurement of 2 mm; 6% of the patients had an overjet greater than 4 mm. \begin{table}
\begin{tabular}{c c c} \hline \hline  & **Kappa de Fleiss** & **CI 95\%** \\ \hline Protrusion I sup. & 0.960 & (0.953–0.966) \\ \hline Mallampati scale: & 0.870 & (0.862–0.877) \\ \hline Odontogram & 0.480 & (0.477–0.483) \\ \hline \end{tabular}
\end{table} 
Table 4: Results of interobserver agreement according to the Fleiss’ Kappa index in relation to the protrusion of the upper incisors, Mallampati scale and registration of the number of missing teeth (odontogram). (CI—Confidence interval). \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Tooth** & **11** & **21** & **22** & **12** & **23** & **31/32/33** \\ \hline Mobility & 1.000 (CI 95\%: & 1.000 (CI 95\%: & 0.738 (CI 95\%: & 0.778 (CI 95\%: & 1.000 (CI 95\%: & 1.000 (CI 95\%: & 1.000 (CI 95\%: \\) & 0.989–1.000) & 0.986–1.000) & 0.724–0.751) & 0.767–0.789) & 0.986–1.000) & 0.990–1.000) \\ Bleeding & 0.827 (CI 95\%: & 0.672 (CI 95\%: & 0.915 (CI 95\%: & 0.918 (CI 95\%: & 0.847 (CI 95\%: & 0.887 (CI 95\%: \\) & 0.817–0.838) & 0.662–0.682) & 0.905–0.925) & 0.907–0.928) & 0.837–0.857) & 0.879–0.896) \\ Missing teeth & 1.000 (CI 95\%: & 1.000 (CI 95\%: & 0.770 (CI 95\%: & 1.000 (CI 95\%: & 0.910 (CI 95\%: & \\) & 0.986–1.000) & 0.989–1.000) & 0.755–0.784) & 0.986–1.000) & 0.901–0.920) \\ Dental caries & 0.553 [0.542; & 0.506 [0.495; & 0.250 [0.239; & 0.101 [0.088; & \(-\)0.026 [–0.040; & 0.565 [0,554; \\  & 0.564] & 0.517] & 0.261] & 0.113] & \(-\)0.012] & 0.575] \\ Fillings & \(-0.027\) (CI 95\%: & 0.510 (CI 95\%: & 0.780 (CI 95\%: & 0.638 (CI 95\%: & 0.779 (CI 95\%: & 0.523 (CI 95\%: \\) & \(-0.041;\) & 0.499–0.520) & 0.769–0.791) & 0.624–0.652) & 0.768–0.790) & 0.513–0.533) \\ Malformations & NA & NA & NA & NA & NA \\ Removable & NA & NA & NA & NA & NA \\ prosthesis & NA & NA & NA & NA & NA \\ Fixed & 1.000 (CI 95\%: & & 1.000 [0.986; & \\ prosthesis & 0.986–1.000) & NA & NA & 1.000] & NA & NA \\ Decliduous & NA & NA & NA & NA & NA \\ teeth & & & & & \\ Presence of & NA & NA & NA & NA & NA \\ mplants & & & & & \\ Orthodontic & 1.000 (CI 95\%: & 1.000 (CI 95\%: & 1.000 (CI 95\%: & 1.000 (CI 95\%: & 1.000 (CI 95\%: & 1.000 (CI 95\%: & \\) treatment & 0.986–1.000) & 0.986–1.000) & 0.986–1.000) & 0.988–1.000) \\ Dental fracture & 1.000 (CI 95\%: & 1.000 (CI 95\%: & 1.000 (CI 95\%: & 1.000 (CI 95\%: & \\) & 0.989–1.000) & 0.986–1.000) & 0.986–1.000) & NA & NA \\ History of & 1.000 (CI 95\%: & 1.000 (CI 95\%: & \\ trauma & 0.986–1.000) & 0.986–1.000) & NA & NA & NA & NA \\ \hline \end{tabular}
\end{table} 
Table 3: Results of interobserver agreement according to the Fleiss’ Kappa index for each of the analysed parameters. (CI—Confidence interval; NA—Not applicable). * Mallampati scale: 46% of the patients presented a score 1, 26% a score 2 and 29% a score 3. * Missing teeth: With regard to the upper incisors, 46% of the patients observed did not have both teeth 11 and 12 and 40% did not have teeth 21 and 22. Tooth 23 was absent in 43% of patients. In the lower jaw, 26% of patients did not present any of the three teeth selected for evaluation (teeth 31, 32 or 33). * Mobility: No vertical mobility was registered--that is, grade 3 mobility was registered. * Bleeding: The observed patients, presented in the great majority, bleeding shortly after probing. * Odontogram: An average of 17 isolated teeth were registered. In total, 43% of the patients had an average of 26 missing teeth. * Dental caries: In total, 60% of patients presented caries on tooth 11, 51% on teeth 21 and 22, 54% on tooth 12, 46% on tooth 23 and 34% on at least one of teeth 31/32/33. * Malformations: No malformed teeth were detected, such as teeth with dentinogenesis and amelogenesis.