CONVENTIONAL X MILLED OCCLUSAL SPINT ON PATIENTS WITH BRUXISM: CLINICAL AND LABORATORY TRIAL
Dental occlusion; computer aided design; tooth wear; occlusal splints
The aim of the study was to compare the clinical and laboratory preparation time and clinical adjustments during the installation of conventional thermosetting splint (CS) and milled CAD/CAM (MS) occlusal splints in patients with sleep bruxism. For this purpose, a controlled and non-randomized clinical trial was carried out in which patients diagnosed with probable sleep bruxism were included. CS (N= 24) and MS (N= 26) were made, and the clinical preparation time (CPT) and laboratory preparation time (LPT) were measured, in addition to the installation time (IT) considering each step necessary for each group. The Man-whitney test was used in the SPSS IBM Statistics program to analyze whether there is a difference between the analyzed times and the type of treatment performed. As a result, it was found that CS has a higher total CPT in relation to MS (p<0,001), with the MS group having an average of 17,90 min and the CS group 38,03 min. When analyzing the separate clinical steps, it was found that CS has longer times to obtain the models (p<0,001), interocclusal space time (p0<0,001), occlusal registration (p0<0,001), settlement (p0<0,001) and occlusal adjustment (p=0,003). However, the total LPT of the CS is smaller than the MS, with a mean CS of 164,84 min while the MS group was 185,36min (p=0.015). Finally, with regard to IT, it was found that the MS group had an average of 22,83min of IT, while the CS group had 37,19min (p<0,001). In conclusion, within the limitations of the study, it was seen that the MS have a shorter clinical time both in the preparation and adjustment stages. However, the LPT of PC was lower.