ABSTRACT
OBJECTIVES: This double-blind randomized placebo-controlled clinical trial evaluated the ability of a desensitizing agent and a self-etch adhesive on cervical dentin sensitivity (CDS) after periodontal surgery. MATERIALS AND METHODS: Ninety hypersensitive teeth of 13 subjects were included in the study. After periodontal surgery, the teeth of each posterior sextant treated with one of the following materials: G1: Clearfil S³ Bond (Kuraray Dental), G2: Gluma Desensitizer (Heraeus Kulzer), and G3: placebo (water). The sensitivity was assessed using evaporative stimuli before treatment (baseline, T0), 1 day after treatment (T1), after 1 week (T2), and after 1 month (T3) according to visual analog scale (VAS). RESULTS: Following the treatment, all the 3 groups showed significant reduction of CDS in T1 compared to T0. Reduction of CDS between T1 and T2 was observed only in G1 but there was no significant difference between T2 and T3 in this group. Although we observed a significant difference in T3 compared to T1 and T2 in G2 and G3, comparison of treatment groups in each assessment time showed a significant difference only in T3. According to paired comparison, this was due to the difference between G2 and G3. CONCLUSIONS: Dentin sensitivity following periodontal surgery will decrease spontaneously over time, but treating the sensitive teeth with Gluma Desensitizer and Clearfil S³ Bond can have some benefits.
Subject(s)
Adhesives , Dentin Sensitivity , Dentin , Matched-Pair Analysis , Tooth , Visual Analog ScaleABSTRACT
Objectives: the aim of this study was to assess the efficacy of aloe vera and green tea mouthwash for reducing pain after periodontal pocket reduction surgery
Methods: this randomized, split-mouth, double-blind, cross-over clinical trial was carried out on 45 patients between 25 and 50 years of age requiring pocket reduction surgery. Patients underwent bilateral surgeries in two sessions. After the first surgery, the patients were randomized to receive either mouthwash or placebo for 10 days; then, each group used the other product for the same time period. The parameters assessed following each procedure were the numeric pain rating scale [NPRS] and number of painkillers taken by patients to alleviate postoperative pain. Also, patients were requested to report side effects, if any, after using the mouthwash
Results: the reported postoperative pain score was significantly lower after using the aloe vera and green tea mouthwash compared to the placebo only in the first postoperative day [P=0.002]. Furthermore, number of analgesic tablets used in the first postoperative day was significantly lower than that in the control group [P=0.007]
Conclusion: our results indicated that patients experienced significantly less early postoperative pain when they used aloe vera and green tea mouthwash. Thus, its application can be recommended to decrease pain after periodontal pocket reduction surgery
ABSTRACT
The aim of the present study was to determine the effect of different restorative materials on fracture resistance of mandibular teeth with class V restorations. One hundred intact mandibular incisors were selected and divided into ten groups with 10 samples in each. Three types of restorative materials; Tetric flow composite [Vivadent Ets, Schaan/Liechtenstein], Compoglass [Vivadent Ets,Schaan/Liechtenstein] and light curing glass ionomer [GC Corporation Tokyo JAPAN] were used in our study. Each of these materials were applied in cavities with 2, 3 and 4 mm widths. Group 10 was considered as the control group in which no restorations was done. All teeth were mounted in cold cure acrylic resin [Tray Resin II, Shofu Inc, Kyoto, Japan] and the samples were tested by applying shear force with cross head speed of 5mm/min in a universal testing machine [Instron corp., Canton, MA,USA]. Data were analyzed with two way ANOVA and Dunnet multiple comparisons test using SPSS 10 software package. Regardless of the types of materials, cavities with 4mm width had less bond strength than those with 2 and 3 mm widths [P-value=0.555]. In the Compoglass and glass ionomer L.C. groups, cavities with 2 and 3mm widths had significant greater strength than cavities with 4mm width [P-value=0.0002]. In groups with Tetric flow restorative material no significant difference in shear force among different widths of cavities were detected [P-value=0.4948]. The mean shear force in this group was comparable with the control group [P-value=0.0001]. In cavities 2 and 3 mm widths, there was not any significant difference in shear force between Tetric flow and compoglass restorative materials. Glass ionomer and Tetric flow had the least and the highest shear bond strength ,respectively. The results showed that although all the restorations need an average load more than masticatory forces in the mouth to fail, but Tetric flow composite with combination of chemical adhesion properties and optimum elastic characteristics was proven to be the restorative material of choice for cervical Defects with different widths