ABSTRACT
It was the aim of this study to compare the efficacy of ozone therapy and drug treatment in patients with painful temporomandibular joint [TMJ] disorder [TMD]. A total of 63 patients with TMD were enrolled; 33 were treated with bio-oxidative therapy and 30 with a ketoprofen tablet thiocolchicoside capsule 2 x 1 for 7 days. Maximum voluntary interincisal mouth opening [MMO] was measured in millimeters using a scale and recorded during the pre- and posttreatment periods. The patients evaluated their subjective pain using a visual analogue scale[VAS]. Data were analyzed using the Mann-Whitney U test, the Kol-mogorov-Smirnov test, and the independent t test. The mean MMO of the group that received ozone therapy during the pretreatment period was 46.51 +/- 8.2 mm, and it immediately increased to 48.78 +/- 7.5 mm after 1 week of ozone therapy, which was statistically significant [p = 0.04]. For those who received medication, the mean MMO during the pretreatment period was 46.30 mm, and at the end of 1 week it was 46.9 mm. In the ozone group, 29% of patients showed a gradual decrease in their VAS pain scores compared to pretreatment values [6.3 +/- 2.1 to 3.0 +/- 2.2]. In the medication group, 24% of patients showed a significant decrease in VAS pain scores during the follow-up period [6.9 +/- 1.4 to 5.0 +/- 1.5]. This study showed that bio-oxidative therapy was a more effective treatment than medication therapy for relieving TMJ pain
ABSTRACT
PURPOSE: The purpose of this study was to investigate the bonding properties of denture bases to silicone-based soft denture liners immersed in isobutyl methacrylate (iBMA) and 2-hydroxyethyl methacrylate (HEMA) for various lengths of time. MATERIALS AND METHODS: Polymethyl methacrylate (PMMA) test specimens were fabricated (75 mm in length, 12 mm in diameter at the thickest section, and 7 mm at the thinnest section) and then randomly assigned to five groups (n=15); untreated (Group 1), resilient liner immersed in iBMA for 1 minute (Group 2), resilient liner immersed in iBMA for 3 minutes (Group 3), resilient liner immersed in HEMA for 1 minute (Group 4), and resilient liner immersed in HEMA for 3 minutes (Group 5). The resilient liner specimens were processed between 2 PMMA blocks. Bonding strength of the liners to PMMA was compared by tensile test with a universal testing machine at a crosshead speed of 5 mm/min. Data were evaluated by 1-way ANOVA and post hoc Tukey-Kramer multiple comparisons tests (alpha=0.05). RESULTS: The highest mean value of force was observed in Group 3 specimens. The differences between groups were statistically significant (P<.05), except between Group 1 and Group 4 (P=.063). CONCLUSION: Immersion of silicone-based soft denture liners in iBMA for 3 minutes doubled the tensile bond strength between the silicone soft liner and PMMA denture base materials compared to the control group.