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Efficacy of a chlorhexidine gauze for oral hygiene: Randomized trial
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d e n t a l m a t e r i a l s 3 0 S ( 2 0 1 4 ) e1–e180
bleachguide scale, the first session resulted in higher bleaching effect than second one. Using VAS or VB, SIT resulted in lower TS intensity after the first session. However, the intensity of TS was higher for SIT at 24 h after the first session. No significant difference between the techniques was observed in regard absolute risk of TS. Conclusion: Using SIT can reduce the TS immediately after the in-office bleaching session. However, this technique can increase the level of TS 24 h after the first bleaching session.
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Keywords: Bleaching; Sensitivity; Clinical trial
Purpose: We compared the efficacy of a gauze soaked with 0.12% chlorhexidine and rolled up on the finger (The Digital Brush©, Micerium, Avegno, Italy) versus 0.12% chlorhexidine mouth rinse to maintain the oral hygiene of healthy young subjects. Methods and materials: We used a double-blind, randomized design and the protocol was approved by the local Ethical Committee. Participants were university students, selected on a voluntary basis. Both groups were instructed to brush their teeth and use the interventions twice a day (experimental: tooth brushing + Digital Brush; control: tooth brushing + mouth rinse). The main outcome was the change in full mouth plaque index scores from baseline to 2 weeks. Secondary outcomes were the bleeding index and patient’s appreciation (measured through a Likert rating). Plaque score and bleeding index were evaluated by one trained senior dental hygienist. Differences across groups at baseline and after 2 weeks were assessed using Kruskal–Wallis test. Within each group, the differences between baseline and 2 weeks were evaluated using Wilcoxon matched-pairs signed ranks test. Results: The final sample consisted on 30 subjects in each group (mean age 22.2 ± 3.6 years, 46.7% of males). Both interventions were effective in reducing plaque index at 2 weeks: the percentage of score reduction was 33% for the experimental subjects; 30% for the controls, with no significant difference between the groups. In contrast, participant’s appreciation score increased significantly more in the experimental than in the control group (102% versus 19% average increase, respectively; p < 0.05). None of the interventions significantly reduced the bleeding index during the 2 weeks of follow-up. Conclusion: The association of tooth brushing with a gauze soaked with 0.12% chlorhexidine was effective in improving the oral hygiene of healthy young subjects and was more appreciated than a standard mouth rinse based on 0.12% chlorhexidine.
http://dx.doi.org/10.1016/j.dental.2014.08.207 207 Cervical margin finishing in class II cavities: Four different methods G. Ciampalini ∗ , C. Bozzoli, G. Mabellini, D. Don, P. Mondina, A. Cerutti Department of Restorative Dentistry, University of Brescia, Brescia, Italy Purpose: The aim of this research was to evaluate four systems for finishing the cervical margins of Class II cavities. The evaluation criteria were surface roughness and waviness. Methods and materials: Eighty Class II cavities were prepared in 20 intact molars by a single operator, using a diamond-coated bur (grain size 60 m) mounted on a parallelometer, under magnification (5×, Zeiss) in order to reduce variability. In every tooth, 4 different finishing methods were randomly applied: A: carbide bur; B: straight hand-held chisel; C: diamond-coated bur 60 m; D: diamond-coated sonic instrument. After that, the gingival floor of each cavity was analyzed with an optical profilometer. Mean surface roughness (Ra) and mean surface waviness (Wa) were evaluated with an optical device. Results were analyzed with ANOVA after ln-transformation of data. One and two-way ANOVA was applied. Results: There was no statistically significant difference between the 4 test groups for Ra, which was in the range between 0.76 m and 0.92 m. For Wa, the diamond bur produced significantly lower waviness values (mean Wa 5.2 m) than the other three instruments (mean Wa between 5.7 m and 7.7 m). The variability of Ra and especially Wa was very high: the coefficient of variation of Ra was between 23% and 38% and that of Wa between 52% and 57%. Conclusion: As there was no difference between the four instruments with regard to surface morphology the efficient and safe sonic instruments should be chosen over the other three instruments for finishing proximal boxes of Class II cavities. http://dx.doi.org/10.1016/j.dental.2014.08.208
Efficacy of a chlorhexidine gauze for oral hygiene: Randomized trial G. Orsini ∗ , S. Sparabombe, A. Catellani, M. Grossi, M. Roncati, M. Procaccini, A. Putignano Polytechnic University of Marche, Ancona, Italy
Keywords: Randomized clinical trial; Oral hygiene; Plaque index http://dx.doi.org/10.1016/j.dental.2014.08.209
d e n t a l m a t e r i a l s 3 0 S ( 2 0 1 4 ) e1–e180
bleachguide scale, the first session resulted in higher bleaching effect than second one. Using VAS or VB, SIT resulted in lower TS intensity after the first session. However, the intensity of TS was higher for SIT at 24 h after the first session. No significant difference between the techniques was observed in regard absolute risk of TS. Conclusion: Using SIT can reduce the TS immediately after the in-office bleaching session. However, this technique can increase the level of TS 24 h after the first bleaching session.
208
Keywords: Bleaching; Sensitivity; Clinical trial
Purpose: We compared the efficacy of a gauze soaked with 0.12% chlorhexidine and rolled up on the finger (The Digital Brush©, Micerium, Avegno, Italy) versus 0.12% chlorhexidine mouth rinse to maintain the oral hygiene of healthy young subjects. Methods and materials: We used a double-blind, randomized design and the protocol was approved by the local Ethical Committee. Participants were university students, selected on a voluntary basis. Both groups were instructed to brush their teeth and use the interventions twice a day (experimental: tooth brushing + Digital Brush; control: tooth brushing + mouth rinse). The main outcome was the change in full mouth plaque index scores from baseline to 2 weeks. Secondary outcomes were the bleeding index and patient’s appreciation (measured through a Likert rating). Plaque score and bleeding index were evaluated by one trained senior dental hygienist. Differences across groups at baseline and after 2 weeks were assessed using Kruskal–Wallis test. Within each group, the differences between baseline and 2 weeks were evaluated using Wilcoxon matched-pairs signed ranks test. Results: The final sample consisted on 30 subjects in each group (mean age 22.2 ± 3.6 years, 46.7% of males). Both interventions were effective in reducing plaque index at 2 weeks: the percentage of score reduction was 33% for the experimental subjects; 30% for the controls, with no significant difference between the groups. In contrast, participant’s appreciation score increased significantly more in the experimental than in the control group (102% versus 19% average increase, respectively; p < 0.05). None of the interventions significantly reduced the bleeding index during the 2 weeks of follow-up. Conclusion: The association of tooth brushing with a gauze soaked with 0.12% chlorhexidine was effective in improving the oral hygiene of healthy young subjects and was more appreciated than a standard mouth rinse based on 0.12% chlorhexidine.
http://dx.doi.org/10.1016/j.dental.2014.08.207 207 Cervical margin finishing in class II cavities: Four different methods G. Ciampalini ∗ , C. Bozzoli, G. Mabellini, D. Don, P. Mondina, A. Cerutti Department of Restorative Dentistry, University of Brescia, Brescia, Italy Purpose: The aim of this research was to evaluate four systems for finishing the cervical margins of Class II cavities. The evaluation criteria were surface roughness and waviness. Methods and materials: Eighty Class II cavities were prepared in 20 intact molars by a single operator, using a diamond-coated bur (grain size 60 m) mounted on a parallelometer, under magnification (5×, Zeiss) in order to reduce variability. In every tooth, 4 different finishing methods were randomly applied: A: carbide bur; B: straight hand-held chisel; C: diamond-coated bur 60 m; D: diamond-coated sonic instrument. After that, the gingival floor of each cavity was analyzed with an optical profilometer. Mean surface roughness (Ra) and mean surface waviness (Wa) were evaluated with an optical device. Results were analyzed with ANOVA after ln-transformation of data. One and two-way ANOVA was applied. Results: There was no statistically significant difference between the 4 test groups for Ra, which was in the range between 0.76 m and 0.92 m. For Wa, the diamond bur produced significantly lower waviness values (mean Wa 5.2 m) than the other three instruments (mean Wa between 5.7 m and 7.7 m). The variability of Ra and especially Wa was very high: the coefficient of variation of Ra was between 23% and 38% and that of Wa between 52% and 57%. Conclusion: As there was no difference between the four instruments with regard to surface morphology the efficient and safe sonic instruments should be chosen over the other three instruments for finishing proximal boxes of Class II cavities. http://dx.doi.org/10.1016/j.dental.2014.08.208
Efficacy of a chlorhexidine gauze for oral hygiene: Randomized trial G. Orsini ∗ , S. Sparabombe, A. Catellani, M. Grossi, M. Roncati, M. Procaccini, A. Putignano Polytechnic University of Marche, Ancona, Italy
Keywords: Randomized clinical trial; Oral hygiene; Plaque index http://dx.doi.org/10.1016/j.dental.2014.08.209